This page is updated frequently with new Capacitor-related patent applications.
|| List of recent Capacitor-related patents
|Techniques for controlling equivalent series resistance of a capacitor|
Methods and apparatus for controlling an equivalent-series resistance (esr) of a capacitor are provided. An exemplary apparatus includes a substrate having a land side, the capacitor mounted on the land side of the substrate and having both the esr and terminals, a resistive pattern coupled to the terminals, and a plurality of vias coupled to the resistive pattern.
|Electrical devices and methods for manufacturing same|
An electrical device for soldering to a circuit board with a solder includes a capacitor, a lead frame including a solder dam, and a solder joint electrically coupling the capacitor to the lead frame. The solder dam includes one of a physical barrier to flow or an area of reduced wettability to the solder.
|Substrate comprising an embedded capacitor|
A substrate that includes a first dielectric layer and a capacitor embedded in the first dielectric layer. The capacitor includes a base portion, a first terminal and a second terminal.
|Substrate comprising embedded elongated capacitor|
A substrate that includes a first dielectric layer and a capacitor embedded in the first dielectric layer. The capacitor includes a first terminal, a second terminal, and a third terminal.
|High density ac coupling/dc blocking pin-field array|
Implementations of the present disclosure involve an apparatus and/or method for a large array of ac coupling/dc blocking capacitors on a printed circuit board (pcb) of a microelectronic circuit. The method provides for the placement of the blocking capacitors (and associated vias) to be placed on/through the pcb in a small area while yielding low crosstalk or interference between the vias.
|Radio resource management apparatus of base station in mobile communication system and managing the same|
A base station of a mobile communication system divides an ultra wideband into a plurality of unit bands, uses a plurality of beam component carriers corresponding to the l3 cp dedicated unit band as a coverage layer by grouping in one cell in the l3 cp dedicated unit band and uses a plurality of beam component carriers corresponding to the up dedicated unit band in the up dedicated unit band as a plurality of capacitor layers by grouping in a plurality of cells of a smaller size than that of the grouping.. .
|System and a programmable voltage source|
In accordance with an embodiment, a method of operating a charge pump includes providing a first programmable voltage to a plurality of clock generators having outputs coupled to first nodes of corresponding groups of charge pump capacitors, and selecting a second node of one capacitor from one of the corresponding groups of charge pump capacitors. The clock generators produce a plurality of clock signals having amplitudes proportional to the first programmable voltage..
|Image sensor having an extended dynamic range upper limit|
An apparatus is described that includes an image sensor having timing and control circuitry and threshold circuitry. The timing and control circuitry is to generate signals to cause multiple transfers of charge from a photo-diode to a storage capacitor within a pixel cell during an image capture sequence.
|Method and register setting via multiplexed chip contacts|
A method and apparatus for setting an internal register of an integrated circuit (ic) via a multiplexed pin which also passes an rf signal is provided. An internal rf signal path couples the pin to an internal terminal for the rf signal, and a register setting signal path couples the pin to an internal register.
|Communication method and apparatus using modulation of post-conduction oscillation frequency in switching converters|
A communication method and apparatus that uses modulation of post-conduction oscillation frequency in switching converters is provided. The apparatus may include a converter having a magnetic element having a primary winding and a secondary winding, a first switch, a control circuit configured to repeatedly activate the first switch to couple an input voltage source to the primary winding to store electrical energy in the magnetic element, and a diode coupled to the secondary winding, said diode configured to couple the secondary winding to a load to deliver the electrical energy stored in the magnetic element, and a communication apparatus having a second switch, a first modulator capacitor coupled to the secondary winding, a first transmitter configured to activate the second switch in accordance with a first input signal, and a first receiver configured to detect a post-conduction oscillation frequency of a voltage signal at the primary or secondary windings..
Capacitance-to-digital converter utilizing digital feedback and auxiliary dac
A capacitance-to-digital converter circuit s a capacitor bridge circuit to sense a difference in capacitance between sense capacitors and fixed capacitors in the bridge circuit. The sense capacitors vary according to a sensed parameter.
Sar adcs with dedicated reference capacitor for each bit capacitor
A successive approximation register analog-to-digital converter (sar adc) typically includes circuitry for implementing bit trials that converts an analog input to a digital output bit by bit. The circuitry for bit trials are usually weighted (e.g., binary weighted), and these bit weights are not always ideal.
Calibration techniques for sar adcs with on-chip reservoir capacitors
When reservoir capacitors are moved on-chip for individual bit decisions, a successive approximation register analog-to-digital converter (sar adc) has an addition source of error which can significantly affect the performance of the sar adc. Calibration techniques can be applied to measure and correct for such error in an sar adc using decide-and-set switching.
Push-pull driver, a transmitter, a receiver, a transceiver, an integrated circuit, a generating a signal at an output
A push-pull driver according to an example includes a push stage coupled via a first coupling capacitor to an output of the push-pull driver and a pull stage coupled via a second coupling capacitor to the output of the push-pull driver. Using an example may allow to improve a trade-off between saving energy, an overall complexity of a corresponding implementation, a robust and reliable operation and other parameters and design goals..
System and switch status detection
Systems, methods, and circuits for determining or more statuses are disclosed herein. In one example embodiment, such a system includes a first port configured to be coupled to a switch, a capacitor, a comparator having first and second input ports and an output port, a currant source coupled to the first input port, and a control component.
Impedance conversion circuit, antenna apparatus, and wireless communication apparatus
An impedance conversion circuit includes an auto-transformer circuit including a first inductor connected between a first port connected on a power supply portion side and a second port connected on an antenna side and a second inductor connected between a third port that is grounded and the second port; a first phase shifter with a first end connected to the first port; an inductor connected in series between a second end of the first phase shifter and the power supply portion; and a capacitor connected in series to the inductor and connected in series between the second end of the first phase shifter and the power supply portion.. .
Common mode noise filter
A common mode noise filter adapted for connection in series between a noise source and a load having a first and second inductor connected in series respectively between the noise source and the load. A capacitor which exhibits stray inductance is connected in series with a third inductor having its other end connected to a junction of the first and second inductors.
Tube amplifier assembly having a power tube and a capacitor assembly
Tube amplifier assembly including a power tube that is configured to be coupled to a grounding deck and positioned within an opening of the grounding deck. The tube amplifier assembly also includes a tube adapter that is configured to be coupled to the grounding deck.
Multi-level inverter with flying capacitor topology
A multi-level inverter having one or more banks, each bank containing a plurality of low voltage mosfet transistors. A processor configured to switch the plurality of low voltage mosfet transistors in each bank to switch at multiple times during each cycle..
Multilevel power conversion device
A multilevel power conversion device includes: n (n≧1) direct current voltage sources; a first flying capacitor; a second flying capacitor; and a phase module of a m phase (m≧2) being configured to output, from the output terminal, a potential of one of the input terminals, or a potential obtained by adding or subtracting the voltage of the capacitor to or from the potential of the one of the input terminals, by selectively controlling the respective switching elements in an on/off manner.. .
Reliable ac-dc power converter with high voltage dc link
An ac to dc converter system is provided. The system includes a bidirectional boost converter circuit coupled to an ac input, a high voltage dc link capacitor circuit coupled to the bidirectional boost converter and comprising at least one capacitor, and a dc to dc converter circuit coupled to the high voltage dc link capacitor circuit and a dc input, wherein the at least one capacitor may include a film capacitor..
Switching power supply circuit
A lamp oscillator which outputs a sawtooth wave signal to be compared with an error signal of an output voltage in order to generate a pwm signal. The oscillator includes a first charging current changing circuit, in which a current amplifier converts a differential voltage between the error signal and a reference voltage into a current and outputs the converted current.
Power conversion device
A power conversion device includes: a metal housing; a power semiconductor module that is contained in the metal housing and converts direct electric current to alternating electric current; a capacitor module that is contained in the metal housing and arranged side by side with the power semiconductor module, wherein the capacitor module smoothes the direct electric current supplied to the power semiconductor module; a substrate that has a drive circuit part mounted in a first region, the drive circuit part driving the power semiconductor module, and a control circuit part mounted in a second region, the control circuit part controlling the drive circuit part, wherein the substrate is disposed so as to cover over the metal housing; a base plate that extends in a space in which the second region of the substrate and the capacitor module oppose to each other, and that is electrically connected to the metal housing; and a first noise shielding member that extends in a direction along a boundary between the first region and the second region of the substrate, wherein the first noise shielding member separates the space from a space of the housing in which the power semiconductor module is disposed, and the first noise shielding member is electrically connected to the metal housing or a ground of the control circuit part.. .
Method to reduce losses in a high voltage dc link converter
A multiple stage switching type converter circuit provided between an ac source and a dc source is provided. The circuit includes a boost converter stage coupled to the ac source, a dc link capacitor stage comprising a dc link capacitor decoupled from an ac source and a dc source, and an isolated dc-dc converter stage coupled to the dc source.
Switching power supply and controlling voltage of bulk capacitor in the same
A switching power supply and a method for controlling a voltage of a bulk capacitor in the switching power supply are provided. The switching power supply includes: a rectifying unit; a bulk capacitor; a converter; a monitoring circuit; a control circuit, controlling discharging of the bulk capacitor, being configured to perform controls such that the voltage across the bulk capacitor maintains the peak value after the bulk capacitor having been charged to a peak value of ac voltage, and to perform controls such that the bulk capacitor discharges from a peak value when the instantaneous absolute value of the ac voltage is smaller than or equal to the preset voltage.
Adaptive control scheme of voltage regulator for light and sinking load operation
A switching dc-dc voltage regulator (vr) provides for light and sinking loads by compute components of an information handling system (ihs). A controller detects a load current value and a voltage output value of a synchronous buck vr.
Buck-boost power converter and operation thereof
A method comprises detecting an input voltage and an output voltage of a buck-boost converter, wherein the buck-boost converter comprises a first high-side switch and a first low-side switch connected in series across an input capacitor, a second high-side switch and a second low-side switch connected in series across an output capacitor and an inductor coupled between a common node of the first high-side switch and the first low-side switch, and a common node of the second high-side switch and the second low-side switch and configuring the buck-boost converter such that at least one of the first high-side switch and second low-side switch operates at a fixed duty cycle mode.. .
Voltage doubler and voltage doubling use in pwm mode
An apparatus and a method for generating a pulse width modulated, pwm, voltage doubler signal is presented the apparatus comprises a voltage source, a capacitor, an output node, a switchable circuit assembly for connecting the voltage source, the capacitor and the output node, and a controller for the switchable circuit assembly which is adapted to be switchable between a first circuit configuration in which the capacitor is connected in parallel to the voltage source so as to be chargeable by the voltage source, and a second circuit configuration in which the capacitor is connected in series between the voltage source and the output node, and wherein the control means is adapted to control the switchable circuit assembly to switch to the first circuit configuration in the first period, and to switch to the second circuit configuration in the second period.. .
Negative charge pump feedback circuit
The present invention discloses a negative charge pump feedback circuit, wherein the feedback circuit is connected between an and gate and the output terminal of the negative charge pump, and a clock signal is connected to the negative charge pump through the and gate and under the control of the feedback signal, with the feedback circuit including a switch-capacitor circuit and a comparator; a first terminal of a first capacitor of the switch-capacitor circuit is connected to the output terminal of the negative charge pump through a first switch, and grounded through a second switch; a first terminal of a second capacitor is connected to a second terminal of the first capacitor, grounded though a third switch, and connected to the comparator though a fourth switch; an adjustable capacitor is connected in parallel to both terminals of the second capacitor; a positive-phase input terminal of the comparator is connected to a reference voltage. The switch-capacitor circuit is made to switch constantly between two states by the control of four control signals over the four switches, achieving voltage division and positive/negative voltage conversion simultaneously.
Electric unit for a pump-storage power plant
The invention relates to a pumped storage power plant, in particular to an electric unit 1 comprising a converter 3, a rotating electric synchronous machine 4 and a charging unit 5, wherein the charging unit 5 has at least one transformer 6 and one switch 7 and can be connected to a supply grid 2, on the one hand, and to the converter 3, on the other. The invention also relates to a method for using the electric unit 1 comprising at least opening a generator switch 15 in order to disconnect the synchronous machine 4 from the converter 3; charging cells of the converter 3 which have capacitors and/or accumulators by closing a switch 7 of the charging unit 5, wherein by closing the switch 7 the converter 3 is connected to the supply grid 2 via the transformer 6 of the charging unit 5; opening the switch 7 of the charging unit 5 after the complete charging of the converter 3; and closing the generator switch 15 in order to connect the synchronous machine 4 to the converter 3 and/or the secondary line 11..
Electric motor/generator with multiple individually controlled turn-less structures
Systems and methods for generating currents in a plurality of cts that may be independently controlled by a microprocessor. In some cases, a dc power source (such as a battery) is connected to each inverter.
Inductive rotary joint with multimode inverter
An inductive power transfer circuit or inductive rotary joint has an inductive rotating coupler with a primary side and a primary winding rotatably arranged against a secondary side and a secondary winding. The secondary side is connected via a rectifier to a load.
Insulation monitoring system for series-compensated windings of a contactless energy transmission system
A device for contactless energy transmission may include series resonant circuits on primary and secondary winding sides, which may each include at least one coil and at least two capacitors. The series resonant circuit on the primary winding side may be connected to an upstream circuit, and the series resonant circuit on the secondary side may be connected to a downstream circuit.
Rectifying circuit for multiband radio frequency (rf) energy harvesting
A radio frequency (rf) energy harvesting device (rectenna) includes an antenna structure configured to resonate at rf frequencies, and a rectifying circuit that facilitates harvesting multiband rf signals having low energy levels (i.e., tens of mw and below) by utilizing two zero bias schottky diodes having different forward voltage and peak inverse voltage values. Positive voltage pulses from a captured rf signal generated on a first antenna end point are passed by the first diode to a first internal node where they are summed with a second rf signal generated on the second antenna end point (i.e., after being passed through a capacitor), thereby producing a first intermediate voltage having a substantially higher voltage level.
Low emission coil topology for wireless charging
The disclosure generally relates to a method and apparatus for reducing or substantially eliminating, the electric field above a wireless charging station, in one embodiment, a wireless charging station is formed from a length of conductive wire forming a multi turn spiral coil having a plurality of turns around one or more axis. A plurality of discrete capacitors are selected, and positioned at each of the respective plurality of turns.
Methods for parameter identification, load monitoring and output power control in wireless power transfer systems
A method for identifying impedance related parameters in a wireless power transfer (wpt) system including n coils is disclosed. Said method includes determining optimum values of the impedance related parameters based on a set of measured input impedance by applying an evolutionary algorithm to solve optimum solutions.
Stacked power supply for reduced current consumption
A circuit arrangement comprising a first capacitor and a second capacitor which are arranged in series between a high potential and a low potential is described. The circuit arrangement comprises first power consuming circuitry which is arranged in parallel to the first capacitor.
Bidirectional electrical signal converter
A bidirectional ac-to-dc and dc-to-ac circuit includes a first inductor-capacitor (lc) circuit connected to an ac power source, a transistor synchronized with the ac power source signal, a second lc circuit electrically connected to the synchronized transistor and the first inductor-capacitor circuit, a high-frequency switching transistor electrically connected to the second inductor-capacitor circuit and a direct current (dc) load, and a controller connected to the high-frequency switching transistor. The controller identifies an error between a measured dc output signal and a predetermined dc output signal that is applied to the dc load, and adjusts a duty cycle of a pulse width modulation (pwm) switching signal for the high-frequency transistor to reduce the identified error..
Electrostatic discharge power clamp with fail-safe design
Electrostatic discharge protection circuits and methods of fabricating an electrostatic discharge protection circuit, as well as methods of protecting an integrated circuit from a transient electrostatic discharge event. The electrostatic discharge protection circuit includes a power clamp device, a first timing circuit with a first resistor and a first capacitor that is coupled with the first resistor at a first node, and a second timing circuit including a second resistor and a second capacitor that is coupled with the second resistor at a second node.
Inrush current limiting circuit
A current command value in a period from a time when a relay switch is turned on until charging of an inverter capacitor is completed is set to a value smaller than a value corresponding to the smallest one of rated currents of components included in a circuit, and is set to a value smaller than a maximum current value in a safe operating area of a switching element.. .
Electromagnetic dc pulse power system including integrated fault limiter
An electromagnetic direct current (dc) pulse power system includes a plurality of pulse forming networks (pfn) module, and an energy storage capacitor and circuit interruption apparatus. Each pfn module includes a pfn circuit configured to generate a pulsed dc output power.
Inductive rotary joint with secondary safety circuit
An inductive rotating power transfer circuit, preferably for transferring electrical power from the stationary part to the rotating part of a ct scanner comprises an inductive power transformer having a stationary primary side and a rotating secondary side. The secondary side is connected via a rectifier to a filtering capacitor, delivering electrical power to a load.
Trench metal-insulator-metal capacitor with oxygen gettering layer
A method including forming an oxygen gettering layer on one side of an insulating layer of a deep trench capacitor between the insulating layer and a substrate, the oxygen gettering layer including an aluminum containing compound, and depositing an inner electrode on top of the insulating layer, the inner electrode including a metal.. .
Capacitor structure compatible with nanowire cmos
A semiconductor device is provided that includes a pedestal of an insulating material present over at least one layer of a semiconductor material, and at least one fin structure in contact with the pedestal of the insulating material. Source and drain region structures are present on opposing sides of the at least one fin structure.
Thin-film transistor array substrate and organic light-emitting diode display including the same
A thin-film transistor (tft) array substrate and organic light-emitting diode (oled) display are disclosed. In one aspect, the tft array substrate includes a driving tft including a driving gate electrode, a switching tft including a switching gate electrode and spaced apart from the driving tft, and a storage capacitor including a first electrode electrically connected to the driving gate electrode and a second electrode formed over and insulated from the first electrode.
Organic light emitting display device and manufacturing the same
An organic light emitting display device includes a substrate including a light-emitting region and a transparent region; a first transistor disposed in the light-emitting region, a second transistor disposed in the light-emitting region and disposed adjacent to the first transistor; a capacitor disposed in the light-emitting region, and disposed adjacent to the first transistor, and including a first capacitor electrode and a second capacitor electrode overlapping with the first capacitor electrode; and a pixel defining layer disposed on the first transistor, the second transistor and the capacitor, and including a first opening disposed in the light-emitting region and a second opening disposed in the transparent region, and including an opaque material.. .
Rgbz pixel unit cell with first and second z transfer gates
An image sensor is described having a pixel array. The pixel array has a unit cell that includes visible light photodiodes and an infra-red photodiode.
Rgbz pixel cell unit for an rgbz image sensor
An image sensor is described. The image sensor includes a pixel array having a unit cell that includes visible light photodiodes and an infra-red photodiode.
Semiconductor structures with deep trench capacitor and methods of manufacture
An integrated finfet and deep trench capacitor structure and methods of manufacture are provided. The method includes forming deep trench capacitor structures in a silicon on insulator (soi) wafer.
Deep trench polysilicon fin first
After forming a recessed conductive material portion over a deep trench capacitor located in a lower portion of a deep trench embedded in a substrate, a hard mask layer is formed over a top semiconductor layer of the substrate and the recessed conductive material portion such that the hard mask layer completely fills the deep trench. Next, the hard mask layer, the top semiconductor layer and the recessed conductive material portion are patterned to form a laterally contacting pair of a semiconductor fin and a conductive strap structure over the deep trench capacitor as well as a dielectric cap embedded in the deep trench.
A semiconductor device includes a first memory cell including a first transistor and a first capacitor, the first transistor comprising a first gate electrode, a first source, and a first drain; a second memory cell including a second transistor and the first capacitor, the second transistor comprising a second gate electrode, a second source, and a second drain; a first word line coupled to the first gate electrode; and a second word line coupled to the second gate electrode. The first capacitor is electrically connected between the first and second transistors..
Finfet based zram with convex channel region
Embodiments of the present invention provide improved methods and structures for fabrication of capacitor-less dram devices, sometimes referred to as zram devices. A channel is formed in a fin-type field effect transistor (finfet) that is comprised of a finned channel portion and a convex channel portion.
Semiconductor structures with deep trench capacitor and methods of manufacture
An integrated finfet and deep trench capacitor structure and methods of manufacture are provided. The method includes forming a plurality of fin structures from a substrate material.
Passive device and manufacturing method thereof
The present invention relates to a passive device and manufacturing method thereof. A capacitor according to the present invention includes: a capacitor thin film pattern formed on the upper surface of a substrate; a plurality of trenches formed by etching the substrate formed with the capacitor thin film pattern which defines the unit area of the capacitor; an insulation layer, which fills the trench, formed with capacitor interconnection holes for exposing the metal layers formed in the substrate and constituting the capacitor; and a plurality of capacitor electrode interconnection wires formed by filling the capacitor interconnection holes with a conductive material, wherein the lower surface of the substrate is being polished in a way that the insulation layer formed in the trenches is exposed..
Metal-insulator-metal (mim) capacitors arranged in a pattern to reduce inductance, and related methods
Metal-insulator-metal (mim) capacitors arranged in a pattern to reduce inductance, and related methods, are disclosed. In one aspect, circuits are provided that employ mim capacitors coupled in series.
Land side and die side cavities to reduce package z-height
A package structure including a capacitor mounted within a cavity in the package substrate is disclosed. The package structure may additionally include a die mounted to a die side surface of the package substrate, and the opposing land side surface of the package substrate may be mounted to a printed circuit board (pcb).
Carrier wire for solid electrolytic capacitors
A solid electrolytic capacitor including a capacitor element and an anode lead assembly is provided. The capacitor element includes a sintered, porous anode body; a dielectric layer overlying the sintered, porous anode body; and a cathode overlying the dielectric layer that includes a solid electrolyte.
Solid electrolyte capacitor and manufacturing method thereof
A solid electrolyte capacitor includes a sintered body that is provided by sintering a molded body containing a mixture of metal powder and an inorganic additive. An anode lead wire is disposed to be partially inserted into the sintered body.
Anode for use in a high voltage electrolytic capacitor
An anode for use in a high voltage electrolytic capacitor is provided. The anode contains a sintered porous pellet and a leadwire extending therefrom in a longitudinal direction.
Multilayer film capacitor
A multilayer film capacitor having a composite stack disposed between two electrodes where the composite stack includes at least one thermoplastic conductive layer and at least one thermoplastic insulating layer. The total thickness of the conductive layers is at least 3 times the total thickness of the insulating layers.
Dielectric film, film capacitor, and electric device
There are provided a dielectric film, a film capacitor and an electric device capable of achieving an increase in relative permittivity without causing a decrease in breakdown field strength. A dielectric film includes an organic resin and ceramic particles contained in the organic resin.
Composite electronic component
A composite electronic component includes a composite body including a capacitor and an inductor bonded to each other; an input terminal disposed on a first end surface of the composite body and connected to the coil part of the inductor; an output terminal including a first output terminal disposed on a second end surface of the composite body and connected to the coil part of the inductor and a second output terminal disposed on the second end surface of the composite body and connected to the first internal electrodes of the capacitor; and a ground terminal disposed on the first end surface of the composite body and connected to the second internal electrodes of the capacitor. A bonded surface between the inductor and the capacitor is provided with insulating layers..
Composite electronic component
A composite electronic component includes a composite body including a capacitor and an inductor bonded to each other, the capacitor including a ceramic body in which a plurality of dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween are stacked and the inductor including a magnetic body including a coil part. The inductor and the capacitor are bonded to each other by an adhesive including a thermosetting resin containing silicon dioxide (sio2)..
Amorphous polycarbonate films for capacitors, methods of manufacture, and articles manufactured therefrom
A film comprising a copolycarbonate, wherein the film is a uniaxially-stretched, extruded film comprising at least one film region having: an average thickness of more than 0 and less than 14 micrometers with a standard deviation of 0.8 micrometer to 1.6 micrometers, a surface having a surface roughness average of less than 0.04 micrometer as measured by optical profilometry, a dielectric constant at 1 khz and room temperature of at least 2.7, a dissipation factor at 1 khz and room temperature of 1% or less, and a breakdown strength of at least 620 volt/micrometer; and the copolycarbonate has a tg of greater than 180° c. And comprises carbonate units derived from a bisphenol compound of the formula (3)..
Liquid crystal display and driving the same
A liquid crystal display has a first transistor, a first capacitor, a second transistor, a liquid crystal element, and a third transistor. A controller may be configured to alternately, based on a period of a horizontal signal, apply a common voltage through a common voltage line at a high level and a low level..
Resonator circuit for a modulated power supply
Examples of the present disclosure generally provide a processing system for a display device including an integrated capacitive sensing device. The processing system includes a sensor module configured to be coupled to a plurality of sensor electrodes.
Scan driving circuit
A scan driving circuit is disclosed and used to execute a driving operation for cascaded scan lines. The scan driving circuit has a pull-down control module, a pull-down module, a pull-up module, a pull-up maintaining module, a bootstrap capacitor, a constant low-level voltage source and a constant high-level voltage source; the scan driving circuit uses a pmos type transistor to control the pull-down control module, the pull-down module, the pull-up module and the pull-up maintaining module.
Organic light emitting display and driving the same
An organic light emitting display and associated method includes: initializing a first node of a storage capacitor, connected between the first node and a second node, with a first driving voltage that is provided from a first power terminal; applying a sustain voltage to the first node and placing a driving transistor in a diode connection state, wherein the driving transistor comprises a gate electrode connected to the second node, an electrode connected to the first power terminal, and another electrode connected to an organic light emitting diode through a third node; applying a data signal, provided from the data line through a switching transistor comprising a gate electrode connected to a scan line, an electrode connected to the data line, and another electrode connected to a first node, to the first node; and generating a compensation voltage by applying the first driving voltage to the first node.. .
Pixel compensation circuit, array substrate and display apparatus
There are provided a pixel compensation circuit, an array substrate, and a display apparatus. The pixel compensation circuit comprises an organic light emitting diode (d1), a driving transistor (m1), first to fifth switch elements (m2-m6) and a storage capacitor (c1), wherein an anode of the organic light emitting diode (d1) is connected to a second terminal of the first switch element (m2); a first terminal of the first switch element (m2) is connected to an output terminal of the driving transistor (m1) and a first terminal of the fifth switch element (m6); a control terminal of the driving transistor (m1) is connected to a second terminal of the third switch element (m4), a second terminal of the fifth switch element (m6) and a first terminal of the storage capacitor (c1); and a second terminal of the storage capacitor (c1) is connected to a second terminal of the fourth switch element (m5) and a second terminal of the second switch element (m3).
Pixel circuit and driving method thereof, display apparatus
There are provided a pixel circuit and a driving method thereof, and a display apparatus. The pixel circuit comprises: a first transistor (t1), a second transistor (t2), a third transistor (t3), a storage capacitor (c1) and a light emitting device (l).
Display with a reduced refresh rate
In one embodiment, a display system includes a display panel having a plurality of display elements, a scan driver to control a leaky switch to select a storage capacitor of a display element of the plurality of display elements to receive a data signal, and a data driver to provide the data signal to the storage capacitor when the leaky switch is in an on state at each of an on voltage to illuminate the display element and an off voltage and to hold the on voltage at an input of the leaky switch when the leaky switch is in an off state.. .
Array substrate, liquid crystal display panel, and detecting liquid crystal display panel
An array substrate is provided, the array substrate comprises a substrate, a common electrode, an insulating layer, a pixel transparent electrode, and a sharing capacitor transparent electrode, wherein a separating area is disposed between the pixel transparent electrode and the sharing capacitor transparent electrode; the common electrode extends to the separating area, and is exposed on the surface of the separating area by at least one groove which is on the insulating layer. Thereby a defectiveness of a product due to an ito (indium tin oxide) remaining on the surface of the array substrate can easily detected..
Apparatus and methods for temperature compensation of variable capacitors
Apparatus and methods for temperature compensation of variable capacitors are provided herein. In certain configurations, an integrated circuit (ic) includes a variable capacitor array, an array biasing circuit that biases cells of the variable capacitor array to control the array's capacitance, and a bias voltage level control circuit that generates one or more temperature dependent bias voltages used by the array biasing circuit to bias the variable capacitor array's cells.
Lcd panel and manufacturing method thereof
An lcd panel and a manufacturing method thereof are provided, the panel includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate is disposed with a pixel electrode, a tft and a storage capacitor.
Radiation detection element and radiograph detection device
A radiation detection element (10) has: plural hexagonal pixels (20) that are arrayed in a form of a honeycomb and have sensor portions (103) that generate charges due to radiation being irradiated, charge accumulating capacitors (5) that accumulate generated charges, and tft switches (4) for reading-out the charges accumulated at the charge accumulating capacitors (5); plural scan lines (101) that are disposed parallel in a first direction and to which switching signals that control switching of the tft switches (4) are outputted; and plural data lines 3 that are disposed in parallel in a second direction that intersects the first direction, and to which charges that have been read-out by the tft switches (4) are outputted. The tft switches (4) are disposed so as to be, in the first direction, connected to the data lines (3) from alternately different sides of the data line (3), and such that an arrangement of source electrodes (9) and drain electrodes (13) of the tft switches (4) is the same in the first direction..
System and identifying an ultracapacitor from a plurality of ultracapacitors
A source id generation system for an energy storage system of a virtual spinning reserve coupled to power generator set includes at least one ultracapacitor having a low voltage side and a high voltage side. Each of the high voltage side and the low voltage side of the ultracapacitor includes a positive terminal, a negative terminal, a resistor input terminal, and a resistor output terminal.
System and switch status detection
Systems, methods, and circuits for determining one or more switch statuses are disclosed herein. In one example embodiment, such a system for determining a status of a switch having first and second terminals includes a first port configured to be coupled to the first terminal, a second port configured to be coupled to the second terminal, and a capacitor coupled between the first port and ground.
Circuit and evaluation overload condition in flyback converter
A circuit and a method for evaluating a load condition in a flyback converter are disclosed. A first current source is used for providing a preset current isum equal to a sum of the off current value ioff and the blanking current value ileb to charge a first capacitor, and a second current source is used for providing a reference current iref to charge a second capacitor.
System and analyte measurement
An analyte measurement system and method for determining a test strip current through an analyte of a physiological fluid sample on a test strip. The system includes a variable reference direct current voltage source and a fixed reference direct current voltage source forming a voltage bias across the electrodes of the test strip.
Nanopore-based sequencing with varying voltage stimulus
A method of analyzing a molecule is disclosed. A voltage source is selectively connected to or disconnected from a capacitor using a switch controlled by a reset signal.
Mode-tuning sense interface
A mems capacitive sensing interface includes a sense capacitor having a first terminal and a second terminal, and having associated therewith a first electrostatic force. Further included in the mems capacitive sensing interface is a feedback capacitor having a third terminal and a fourth terminal, the feedback capacitor having associated therewith a second electrostatic force.
Wind power generation control device and wind power generation system having the same
The present disclosure discloses a wind power generation control device and a wind power generation system, the wind power generation control device is coupled between a wind power generator and a power grid, including: a converter unit including a generator-side converter, a dc bus capacitor and a grid-side converter, an ac-side of the generator-side converter is coupled to a rotor-side of the wind power generator, a dc-side of the generator-side converter is coupled to the dc bus capacitor, a dc-side of the grid-side converter is coupled to the dc bus capacitor, and an ac-side of the grid-side converter is coupled to the power grid; and a switching unit for switching the wind power generation control device between the doubly-fed power generation operating mode and the full-power operating mode according to a wind speed.. .
Process for cracking of liquid hydrocarbon materials by pulsed electrical discharge and device for its implementation
A carrier gas jet is injected into a liquid hydrocarbon material to form a liquid hydrocarbon-gas mixture; flowing the liquid hydrocarbon-gas material through an inter-electrode gap of a discharge chamber, the inter-electrode gap defined by a spaced pair of electrodes, the electrodes being connected to a capacitor; charging the capacitor to a breakdown voltage of the carrier gas; generating a spark discharge in the inter-electrode gap; and recovering a hydrocarbon fraction that includes lower molecular weight hydrocarbons than the liquid hydrocarbon material.. .
Energy source system having multiple energy storage devices
System are described that include an energy storage device adapted to store and release energy and an ultracapacitor. The systems include a switching device coupled to the energy storage device to selectively connect and disconnect the energy storage device to a load, and a second switching device coupled to the ultracapacitor and adapted to connect and disconnect the ultracapacitor to the load.
Film capacitor having a package for heat transfer
A capacitor comprises a first winding member, where the first winding member comprises a first dielectric layer and a first conductive layer. A second winding member comprises a second dielectric layer and second conductive layer.
Deere & Company
Improvements in and relating to displays and light sources for displays
A light source for a colour display apparatus (1) for displaying light at optical wavelengths corresponding a plurality of different colours sequentially, comprising a plurality of light-emitting diodes (3, 4, 5) each respectively operable to emit light to display a respective one of the plurality of different colours, a power source (26) connected to the plurality of leds for supplying power thereto a plurality of capacitor units (7, 8, 9) connected to the power source to be provided thereby with charge for generating a respective one of a plurality of different respective forward bias voltages for application to the leds to operate the led. A control unit (10) is operable to selectively connect a capacitor unit to an led for applying a desired one of the different said forward bias voltages thereto according to the colour of light which the led is operable to display..
Bae Systems Plc
Led based lighting application
The present invention relates to a lighting application, the lighting application comprises an led assembly comprising a serial connection of two or more led units, each led unit comprising one or more leds, each led unit being provided with a controllable switch for substantially short-circuiting the led unit. The lighting application further comprises a control unit for controlling a drive unit and arranged to receive a signal representing a voltage level of the supply voltage, and control the switches in accordance with the signal.
Eldolab Holding B.v.
Differential-type mems acoustic transducer
A mems acoustic transducer has: a detection structure, which generates an electrical detection quantity as a function of a detected acoustic signal; and an electronic interface circuit, which is operatively coupled to the detection structure and generates an electrical output quantity as a function of the electrical detection quantity. The detection structure has a first micromechanical structure of a capacitive type and a second micromechanical structure of a capacitive type, each including a membrane that faces and is capacitively coupled to a rigid electrode and defines a respective first detection capacitor and second detection capacitor; the electronic interface circuit defines an electrical connection in series of the first detection capacitor and second detection capacitor between a biasing line and a reference line, and further has a first single-output amplifier and a second single-output amplifier, which are coupled to a respective one of the first detection capacitor and the second detection capacitor and have a respective first output terminal and second output terminal, between which the electrical output quantity is present..
Solid state relay circuit arrangement for audio signals and switching system
A solid state relay circuit arrangement for audio signals is described, of the type comprising a first mosfet and a second mosfet in a back-to-back configuration, adapted to receive an input signal on the source electrode of the first mosfet and to take the output signal on the source electrode of the second mosfet, with a driving voltage being applied to the gate electrodes of said first mosfet and second mosfet, apt to change, on the basis of its value, the operational state of said first mosfet and second mosfet, according to the invention, each of said first mosfet and second mosfet includes a respective bypass capacitor arranged between its source electrode and its gate electrode, having such a capacitance value to determine a bypass path for the input signal from the source electrode to the gate electrode in the operating frequency range of said input signal.. .
Magneti Marelli S.p.a.
Fast fall and rise time current mode logic buffer
A current mode logic buffer includes a differential pair of input transistors comprising a first input transistor and a second input transistor, a first output load resistor coupled in series with the first input transistor, a second output load resistor coupled in series with the second input transistor, a first output at a first node between the first output load resistor and the first input transistor, a second output at a second node between the second output load resistor and the second input transistor, a first hold capacitor configured to provide a semi-constant voltage source to the first output via a first low-resistance path, and a second hold capacitor configured to provide a semi-constant voltage source to the second output via a second low-resistance path.. .
Samsung Display Co., Ltd.
Semiconductor device and electronic device
To provide a semiconductor device that inhibits unexpected output of a high-level signal immediately after the rise of a power supply voltage. The semiconductor device includes a first buffer circuit, a level shifter circuit, and a second buffer circuit.
Semiconductor Energy Laboratory Co., Ltd.
Level shifting circuit, apparatus and operating the same
A level shifting circuit includes an input circuit, a leakage divider circuit, a skew inverter circuit and a buffering circuit. The input circuit has an input terminal configured to receive an input voltage.
Taiwan Semiconductor Manufacturing Company, Ltd.
Sampling circuit and sampling method
A sampling circuit for sampling an input voltage and generating an output voltage, comprising six switches, a capacitor and a voltage buffer. The first switch has a control terminal and makes the output voltage equal to the input voltage when switching on.
Realtek Semiconductor Corporation
Method and a brown out detector
The disclosure provides a detector that includes a pre-charge circuit. The pre-charge circuit receives a supply voltage.
Texas Instruments Incorporated
A duplexer includes a transmission filter with a ladder circuit configuration and a reception filter including a ladder filter portion connected to an antenna terminal and a longitudinally coupled resonator-type surface acoustic wave filter. In the transmission filter, a coupling capacitor is connected between an end portion of an inductor nearer to parallel arm resonators and a wiring line connecting the ladder filter portion to the longitudinally coupled resonator-type surface acoustic wave filter in the reception filter..
Murata Manufacturing Co., Ltd.
Method, system, and resonator circuits and modulating resonators
Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters.
Peregrine Semiconductor Corporation
An isolator includes a core isolator, a main substrate and a circuit-defining section. The main substrate includes a first wiring portion, a second wiring portion and a third wiring portion and has the core isolator and the circuit-defining section mounted thereon.
Murata Manufacturing Co., Ltd.
Noise cancellation resonator
In order to provide a noise cancellation resonator that is highly effective in reducing noise, a noise cancellation resonator of the present invention is characterized by including: a noise cancellation resonator coil with an inductance component of ln; and a noise cancellation resonator capacitor with a capacitance component of cn, wherein the noise cancellation resonator has a resonance frequency that is calculated by adding a shift frequency that is determined based on a degree of coupling between a main resonator coil and the noise cancellation resonator coil, to a predetermined frequency of an electromagnetic field generated by a main resonator that is a source of noise and includes the main resonator coil.. .
Equos Research Co., Ltd.
Sensorless motor drive vector control with feedback compensation for filter capacitor current
Disclosed examples include methods, computer readable mediums and motor drives power conversion systems for sensorless speed control of a motor driven by an inverter through an intervening filter, in which a controller computes motor current feedback values for a current control cycle according to inverter output current values, capacitance values representing capacitances of filter capacitors of the filter, filter output voltage values representing output voltages of the filter, and a speed feedback or reference value of a previous control cycle. The controller computes a speed feedback value for the current control cycle according to the motor current feedback values and the filter output voltage values, and controls the inverter to regulate the rotational speed of the motor at least partially according to the speed feedback or reference value using vector control..
Rockwell Automation Technologies, Inc.
Electrostatically deflectable micromechanical device
A micromechanical device with electrostatically caused deflection by a plate capacitor extending along and spaced apart from the neutral fiber of the deflectable element is improved with regard to its manufacturing complexity and/or with regard to its operating characteristics, such as, for example, maximum voltage applicable or deflectability, by using a continuous insulation layer between the distal and proximal electrodes of the plate capacitor, or else the proximal electrode is structured so as to have gaps at the segment boundaries where the distal electrode is mechanically fixed so as to be laterally spaced apart from the distal electrode. Both procedures avoid the problems of generating a roughness of the surface of the proximal electrode facing the distal electrode, as would otherwise be necessitated by etching an insulation layer for providing spacers between the distal and proximal electrodes at the segment boundaries..
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.
Layout of power converter
A layout of a switching power converter, wherein the switching power converter includes: a capacitor unit receiving or outputting dc voltage; six power transistor units transforming the dc voltage to the ac voltage or the ac voltage to the dc voltage; and a carrier board with the capacitor unit and the six power transistor units on. The layout of the switching power converter includes a first commutation loop and a second commutation loop, in which the six power transistor units are arranged on the same surface of the carrier board.