|| List of recent Capacitor-related patents
| Arrow construction system having tip canister electronics|
An arrow construction system comprising a tip canister configured to receive an arrow tip and to attach to an arrow shaft. The tip canister contains a power source and sensitive electronics.
| Switchable filtering circuit and the operation method using the same|
The disclosure provides a switchable filtering circuit and the related operation method, in particular related to a filtering circuit which can be used for bluetooth system and wireless local area network system. By using a first switch, a hybrid filtering circuit and a second switch, the received mode and transmitted mode between these two systems is realized.
| Systems and methods for active interference cancellation to improve coexistence|
This disclosure describes techniques for providing active interference cancellation in a wireless communication system having a bluetooth transmit chain and a wlan receive chain. A signal sampled from the bluetooth transmit chain is gain and phase adjusted to offset interference in the wlan receive chain.
| Loudspeaker constructed from sheets|
A loudspeaker designed with a large area having sandwich-like layer structure includes a plurality of conductive and nonconductive layers which form an active sound-radiating loudspeaker surface. The plurality of conductive and nonconductive layers include a first diaphragm sheet coated with an electrically conductive layer, a second diaphragm sheet coated with an electrically conductive layer, a static high-voltage supply, which generates an electric field between the first electrically conductive layer and the second electrically conductive layer, and an audio source which influences the high-voltage fields between the first electrically conductive layer and the second electrically conductive layer via a capacitor.
| Passive power factor correction incorporating ac/dc conversion|
A passive power factor correction (pfc) circuit is disclosed. It converts an ac input voltage into at least one dc output voltage.
| Switched-mode power supply|
Consistent with example embodiments disclosed, there are switched-mode power supplies (smps) in which a signaling capacitor transmits information across a transformer of the power supply. Such embodiments can avoid drawing power from the output capacitor in order to provide communication signals and so do not cause a drop in the output voltage when signaling to the primary side.
| Switching power supply device|
A switching power supply includes a series resonant circuit that includes a resonant inductor and a resonant capacitor connected in series with a primary winding of a converter transformer. By controlling turning on and off of first and second switching elements in a complementary manner, current is supplied to the series resonant circuit.
| Saturation prevention in an energy transfer element of a power converter|
A controller for use in a power converter includes logic circuits to turn on and off a switch to regulate an output quantity. A first integrating capacitor is charged with a combination of a first current and a second current while the switch is turned on.
| Electroconductive polymer, electroconductive polymer aqueous solution, electroconductive polymer film, solid electrolytic capacitor and method for producing the same|
An electroconductive polymer having high electroconductivity, an electroconductive polymer aqueous solution, and an electroconductive polymer film are provided. Further, a solid electrolytic capacitor having a reduced esr and a method for producing the same are provided.
An electrolyte system suitable for use in an energy storage device (such as a supercapacitor), and energy devices which comprising the electrolyte system which is made up of an ionic liquid, such as li or emi tfsi and a stabilising amount of a stabilising additive. The stabilising additive preferably contains nitrile and or aromatic (benzene) groups, and may be advantageously benzonitrile, cinnamonitrile or succinonitrile.
| Electrode porosity for three-volt ultracapacitor|
An electric double-layer ultracapacitor configured to maintain desired operation at an operating voltage of three volts, where the capacitor includes a housing component, a first and a second current collector, a positive and a negative electrode electrically coupled to one of the first and second current collectors, a separator positioned between the positive and the negative electrode, and an electrolyte in ionic contact with the electrodes and the separator. At least one of the positive electrode and the negative electrode can be made of a carbon based layer having a mesoporosity and/or a microporosity optimized for ionic mobility therewithin..
| Carbon surface modification for three-volt ultracapacitor|
An electric double-layer ultracapacitor configured to maintain desired operation at an operating voltage of three volts, where the capacitor includes a housing component, a first and a second current collector, a positive and a negative electrode electrically coupled to one of the first and second current collectors, and a separator positioned between the positive and the negative electrode. At least one of the positive electrode and the negative electrode can include a treated carbon material, where the treated carbon material includes a reduction in a number of hydrogen-containing functional groups, nitrogen-containing functional groups and/or oxygen-containing functional groups..
| Coated housing for ultracapacitor|
An electric double-layer ultracapacitor configured to maintain desired operation at an operating voltage of three volts, where the capacitor includes a housing component, a first and a second current collector, a positive and a negative electrode electrically coupled to one of the first and second current collectors, and a separator positioned between the positive and the negative electrode. The capacitor may also include a protective coating disposed on an inner surface of the housing for the ultracapacitor..
| Super capacitor with fibers|
An electrical cell apparatus includes a first current collector made of a multiplicity of fibers, a second current collector spaced from the first current collector; and a separator disposed between the first current collector and the second current collector. The fibers are contained in a foam..
| Spacer-modified graphene electrode for supercapacitor|
A spacer-modified nano graphene platelet electrode, comprising: (a) multiple nano graphene platelets or sheets having an average thickness smaller than 10 nm; and (b) discrete, non-metallic nano-scaled particles that are disposed between two graphene platelets or sheets to serve as a spacer. In such a spacer-modified graphene electrode, large amounts of electrolyte-accessible pores are formed, enabling the formation of large amounts of electric double layer charges in a supercapacitor, which exhibits an exceptionally high specific capacitance..
| Electrode material for aluminum electrolytic capacitor, and process for producing same|
Specifically, the present invention provides an electrode material for an aluminum electrolytic capacitor, which comprises, as constituent elements, a sintered body of a powder of at least one member selected from the group consisting of aluminum and aluminum alloys and an aluminum foil substrate that supports the sintered body thereon, which is characterized in that (1) the powder has an average particle size d50 of 0.5 to 100 μm, (2) the sintered body is formed on one surface or both surfaces of the aluminum foil substrate and has a total thickness of 20 to 1,000 μm, and (3) the aluminum foil substrate has a thickness of 10 to 200 μm and an si content of 10 to 3,000 ppm.. .
| Capacitor and contact structures, and formation processes thereof|
Capacitor and contact structures are provided, as well as methods for forming the capacitor and contact structures. The methods include, for instance, providing a layer of conductive material above a conductive structure and above a lower electrode of a capacitor; etching the layer of conductive material to define a conductive material hard mask and an upper electrode of the capacitor, the conductive material hard mask being disposed at least partially above the conductive structure; and forming a first conductive contact structure and a second conductive contact structure, the first conductive contact structure extending through an opening in the conductive material hard mask and conductively contacting the conductive structure, and the second conductive contact structure conductively contacting one of the lower electrode of the capacitor, or the upper electrode of the capacitor..
| Electronic component|
An electronic component includes a capacitor having a desired capacitance value and a laminate including a plurality of laminated insulating material layers. Land electrodes are provided on a bottom surface of the laminate.
| Imaging system and method for driving imaging system|
A method drives an imaging system including: a plurality of pixels; an amplifier having an input node connected to the plurality of pixels via an input capacitor, and an output node connected to the input node via a feedback capacitor; and a reset unit configured to reset the input node to a base potential. The method includes the steps of: causing the input capacitor to hold noise output from one of the plurality of pixels; adding signals output from the two or more pixels in the feedback capacitor; and obtaining a difference between a signal applying a gain to a base signal output from the amplifier according to the reset of the input node of the amplifier and the signal added in the feedback capacitor..
| Thermal imager|
A thermal imager includes a detector, a lens, a shutter disposed between the detector and the lens, and a motor operably connected to the shutter for moving the shutter between a first and a second position. There is a source of electrical energy operably connected to one or more of the detector, lens and motor by an electrical circuit.
| Pixel, display device and driving method thereof|
A first reference voltage is applied to a plurality of pixels during a data writing period when data is written and a second reference voltage is applied to the plurality of pixels during a light emitting period when the plurality of pixels emit light, in which each of the plurality of pixels includes a switching transistor to transfer a data voltage applied to a data line to a first node; a driving transistor controlling a driving current flowing into an oled according to the voltage of the first node and a first power supply voltage; and a storage capacitor including a first electrode connected to the first node and a second electrode receiving one of the first reference voltage and the second reference voltage. A difference between the first reference voltage and the second reference voltage is determined according to a threshold voltage deviation characteristic of the display unit..
| Organic light emitting diode display|
An organic light emitting diode (oled) display includes: a substrate; a scan line formed on the substrate and that transfers a scan signal; a data line and a driving voltage line that intersect the scan line and that transfer a data signal and a driving voltage, respectively; a switching thin film transistor (tft) connected to the scan line and the data line; a driving tft connected to the switching tft and the driving voltage line; an oled connected to the driving tft; a storage capacitor connected between the driving voltage line and a driving gate electrode of the driving tft; and a boosting capacitor connected to the storage capacitor, wherein the storage capacitor has at least one capacitor opening.. .
| Organic light emitting diode display|
Oled connected to the driving tft, and a storage capacitor connected to the driving voltage line and a driving gate electrode of the driving tft. The storage capacitor includes a first storage capacitor plate that overlaps the driving voltage line..
| Optical touch display panel|
An optical touch display panel includes a plurality of light-sensing touch units and a position detecting circuit. Each light-sensing touch unit includes a light-sensing component, a storage capacitor, a signal reading component, and a charging component.
| Multi-touch system and method for controlling liquid crystal capacitors to reduce touch sensing interference|
A multi-touch system for controlling liquid crystal capacitors to reduce touch sensing interferences includes k gate driving lines, which are divided into n groups each corresponding to a common voltage conductive line. When a display driving signal is applied to an i-th group of gate driving lines for performing a display driving, the liquid crystal capacitor corresponding to the i-th group is set to a predetermined voltage, where i=1 to n.
| Signal processing circuit, signal processing method, position detecting device, and electronic apparatus|
A signal processing circuit is provided, which is suitable to be connected to a signal receiving conductor of a capacitive position detecting sensor, which has low power consumption and small circuit scale, and which allows setting of a small value as the capacitance value of a capacitor used for i-v conversion. After a receiving conductor is clamped to a predetermined potential by a clamp circuit, this receiving conductor clamped to the predetermined potential is connected to a capacitor circuit via a gate circuit.
| Method for estimating capacitance weight errors and successive approximation analog to digital converter using the same|
A method for estimating capacitance weight errors of a digital-to-analog converter and a successive approximation (sa) analog-to-digital converter (adc) using the same are disclosed, and the sa adc includes a comparator, a capacitor set, a switch set and a controller. The capacitor set includes a primary capacitor array including a plurality of binary-weighted capacitors, and a secondary capacitor array including a plurality of binary-weighted capacitors with known capacitance weights.
| Impedance matching device, linear motion module, and radio frequency power supply device|
An impedance matching device includes a first variable capacitor connected to an rf power source and including a first shaft moving linearly, a first linear motion unit axially coupled to the first shaft of the first variable capacitor to provide linear motion, a first insulating joint connecting the first shaft to a first driving shaft of the first linear motion unit, and a first displacement sensor adapted to measure a movement distance of the first driving shaft of the first linear motion unit.. .
| Automatic gain control circuit|
An automatic gain control circuit (5a) includes a peak detector circuit (10) that detects the peak voltage of the output signal from a variable gain amplifier (3), an average value detection and output amplitude setting circuit (11) that detects the average voltage of the output signals from the variable gain amplifier (3) and adds a voltage ½ the desired output amplitude of the variable gain amplifier (3) to the average voltage, and a high gain amplifier (12) that amplifies the difference between the output voltage of the peak detector circuit (10) and the output voltage of the average value detection and output amplitude setting circuit (11) and controls the gain of the variable gain amplifier (3) using the amplification result as a gain control signal. The peak detector circuit (10) includes transistors (q1, q2, q3), a current source (i1), and a filter circuit.
| Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source-gate lna|
A cascode common source and common gate lnas operating at 60 ghz are introduced and described. The cascode common source lna is simulated to arrive at an optimum ratio of upper device width to the lower device width.
| Semiconductor structure and method for reducing noise therein|
The present invention provides a semiconductor structure, including a substrate, a first tsv, an inductor and a capacitor. The first tsv is disposed in the substrate and has a first signal.
| Interface circuit|
An interface circuit includes a receiver, a first terminal resistor, a second terminal resistor, a common mode capacitor, a first switch, a second switch, and a common mode potential adjustment circuit. The receiver includes a first channel for receiving a first channel voltage, and a second channel for receiving a second channel voltage.
| Reduction or elimination of irregular voltage distribution in a ladder of voltage elevators|
The voltage distribution in a cascade or ladder of voltage elevator cells may become irregular in certain conditions. In such conditions, one or more cells may become overstressed.
| Capacitive touch keyboard|
A capacitive touch keyboard includes a soft shielding layer, a soft intermediate layer, and a one dimensional sensor layer where the soft intermediate layer is interposed between the other two to form a capacitor structure. The soft shielding layer includes a ground plane, a dielectric material covering on the ground plane, and plural key areas at its outer surface.
| Balanced auxiliary on time generator for multiphase stackable constant on time control architecture|
A control circuit configured to control a switching power supply including a ramp generator configured to generate a triangular waveform. A comparator is configured to generate a series of pulse width modulated (pwm) pulses at a first frequency and to regulate the switching power supply.
| Gate driving circuit and method for driving semiconductor device|
A gate driving circuit and method can improve the tradeoff relation between the noise and the loss caused in the turn-off switching of semiconductor device. The gate driving circuit includes first and second series circuits.
| Semiconductor integrated circuit|
To reduce power consumption of a semiconductor integrated circuit and to reduce delay of the operation in the semiconductor integrated circuit, a plurality of sequential circuits included in a storage circuit each include a transistor whose channel formation region is formed with an oxide semiconductor, and a capacitor whose one electrode is electrically connected to a node that is brought into a floating state when the transistor is turned off. By using an oxide semiconductor for the channel formation region of the transistor, the transistor with an extremely low off-state current (leakage current) can be realized.
| Capacitive touch keyboard|
A capacitive touch keyboard includes a shielding layer, a intermediate layer, and a one-dimensional sensor layer where the soft intermediate layer is interposed between the other two to form a capacitor structure. The shielding layer includes a ground plane, and plural first key areas at its outer surface.
| Voltage monitoring device|
A voltage monitoring device monitors voltage of a battery pack having a plurality of battery cells connected in series. This device is provided with a capacitor circuit including a pair of independent terminals, a plurality of capacitors connected in series between the pair of independent terminals, and at least one connecting terminal arranged between adjacent capacitors of the capacitors.
| Artificial ramp generating in pwm modulator for current control mode|
Circuits and related methods for artificial ramp generation for pulse-width modulators (pwm) for current control mode switch mode power supplies (smps).are disclosed. The artificial ramp generation is separated from a current sensing part and allows easy trimming of both paths.
| Powering down switching regulator using a ramped reference voltage|
Circuits and related methods for energy efficient battery supplied switching dc-to-dc regulators are disclosed. When entering a power-down state the energy in an output capacitor is harvested and charged back to the battery.
| Reactive power compensator|
A reactive power compensator for a three-phase network having first, second and third phases includes an assembly of capacitors and electromechanical contactors electrically connected to the capacitors. Each contactor includes at least one upstream and one downstream power terminal.
| Method for energizing a chain-link converter, controller, computer programs and computer program products|
A method in a controller for energizing a chain-link converter including one or more phase legs, each phase leg including a number of series-connected converter cells, each converter cell including four valves arranged in an h-bridge connection with a dc capacitor. Each valve in turn includes a semiconductor switch in parallel with a diode.
| Charging system|
The present invention discloses a charging system for charging a capacitor. The charge system includes at least one unit gain buffer, driven by a plurality of driving voltages, each unit gain buffer having a positive input terminal for receiving a target voltage and a negative input terminal coupled to an output terminal, a plurality of switches coupled between the plurality of driving voltages and the capacitor, and a switch control waveform generator, coupled to the plurality of switches, for switching on one of the for a specific driving voltage among the plurality of driving voltages to drive one of the at least one unit gain buffer to charge the capacitor..
| Battery protection circuit module device|
Disclosed herein is a battery protection circuit module device. The battery protection circuit module device includes a charging unit, a battery protection circuit module, and a system.
| Electrical circuit for controlling electricalpower to drive an inductive load|
A method and system are disclosed for controlling electrical current through an inductive load. The electrical current is supplied by one of at least three selectable dual capacitor bank electrical circuits.
| Touch and proximity sensing device|
A touch and proximity sensing device includes a circuit board and a sensed signal processing unit including only one sensed signal conversion engine. The circuit board includes a capacitor sensing electrode and a grounding conductor foil disposed on opposite surfaces of the circuit board, and has a proximity sensing electrode formed thereon.
| Xcl power producer|
The xcl power producer works by moving molecules to said bodies and continues to move at uniform velocities acted upon vacuum pressures by force, which creates an acceleration of energy production. Produces 45,000 volts @ 300 amps every 4 minutes for a 14 year cycle, continually, as a main power source or back-up system.
| Method and circuit for reducing current surge|
Systems and methods are provided for reducing surge current in power gated designs. In one aspect, a storage capacitor supplies a portion of the current used to power up a circuit.
| Controlling a contactless energy transmission by means of a characteristic of a resonant circuit|
The invention relates to a circuit for transmitting an input voltage (36) from an electrical energy source (64) in a stator (4, 55) to a load (70) within a device (6) movable relative to the stator (4, 55) comprising an control element (34) for converting an input voltage (36) into a transmission voltage (9), a resonant circuit (24) for receiving the transmission voltage (9), wherein the resonant circuit (24) contains a capacitor (22) and a primary winding (10) of a transformer (8) and the transformer (8) having the primary winding (10) and a secondary winding (12), wherein the primary winding (10) is provided for transmitting the transmission voltage (9) to the secondary winding (12) and the secondary winding (12) is provided for supplying the received transmission voltage (20) to the load (70). According to the invention, the actuator element (34) is provided for detecting the input voltage (36) and adjusting the frequency (27) of the transmission voltage (9) based on a control characteristic (45) in such a manner that the amplitude of the load voltage (20) dropping at the load (70) remains substantially constant, wherein in the control characteristic (45) the transmission ratio (25) of the resonant circuit (24) is plotted over the frequency (27) to be adjusted..
| High-voltage integrated metal capacitor and fabrication method|
A high-voltage metal capacitor with easy integration into existing semiconductor manufacturing processes can provide isolation capacitors up to several kilovolts. The capacitor includes a support layer with internal structure, including a lower place, a bond pad on the support layer, an upper plate disposed on the support layer, the upper plate being arranged above the lower plate, a dielectric layer, at least part of which is between the lower and upper plates, and a passivation layer, at least part of which covers at least part of the upper plate and part of the dielectric layer.
| Accelerometer and its fabrication technique|
An accelerometer has e-shaped resilient beams to isolate stress and reduce deformation. A top cap silicon wafer and a bottom cap silicon wafer are both coupled with a measurement mass to form a capacitor.
| Organic light-emitting display device and method of manufacturing the same|
An organic light-emitting display device may include a plurality of scan lines, a plurality of data lines, and a plurality of pixels located at an intersection region of the scan line and the data line, wherein the organic light-emitting display device includes a thin film transistor including a gate electrode on a different layer than a scan line, an active layer on the gate electrode, and source and drain electrodes that are in contact with source and drain regions of the active layer, and a capacitor including a first capacitor electrode on the same layer as the scan line, a second capacitor electrode on the gate electrode, and a third electrode on the same layer as the source and drain electrodes.. .
| Thin film transistor substrate, method of repairing the thin film transistor substrate, organic light emitting display apparatus, and method of repairing the organic light emitting display apparatus|
A thin film transistor substrate includes a capacitor including a first capacitor electrode and a second capacitor electrode on a substrate, a first wire connected to the first capacitor electrode, a second wire connected to the second capacitor electrode, a first conductive pattern layer spaced apart from the first capacitor electrode and the second capacitor electrode, a second conductive pattern layer spaced apart from the first conductive pattern layer and formed to overlap with the first conductive pattern layer, a first conductive wire pattern connected to the first conductive pattern layer, spaced apart from the second conductive pattern layer, and overlapping with the second wire in at least one area, and a second conductive wire pattern connected to the second conductive pattern layer, spaced apart from the first conductive pattern layer and the first conductive wire pattern, and overlapping with the first wire in at least one area.. .
| Detecting apparatus and detecting system apparatus and detecting system|
A detecting apparatus formed on a substrate, includes a plurality of pixels arranged in a matrix, and a signal line electrically connected to the pixels. Each of the pixels includes a sensing element that converts radiant ray or light to electric charges, an amplification thin film transistor that outputs an electric signal based on an amount of the electric charges, a capacitor that holds an electric signal output by the amplification thin film transistor, and a transfer thin film transistor that transfers an electric signal held in the capacitor to the signal line..
|Vehicle and control method of vehicle|
A vehicle uses electric power from a mounted power storage device to drive a motor generator by a pcu to generate traction driving force. The vehicle can execute, as a function to discharge residual electric charge from a capacitor in pcu, mg discharging in which current is applied to the motor generator while preventing generation of torque for discharging, and pcu discharging through the conduction loss of switching elements in the pcu for discharging.
|Distractor for measuring load and position of load applied by the muscular-skeletal system and method therefor|
A distractor suitable for measuring a force, pressure, or load applied by the muscular-skeletal system is disclosed. An insert couples to the distractor.
|Portable communication apparatus and antenna switching method|
There is provided a portable communication apparatus which includes a main antenna including a first element and a second element to be capable of being resonant at a first and a third frequencies, respectively, the third frequency being one between the first frequency and a second frequency higher than the first frequency, a switch provided between the main antenna and a high-frequency circuit, a capacitor disposed in parallel to the switch, the capacitor being connected between the main antenna and the high-frequency circuit, and a control circuit configured to control the switch to turn on and off such that when the switch is in an on state, the first element is resonant at the first frequency, while when the switch is in an off state, the main antenna is coupled to the high-frequency circuit via the capacitor, and the second element is resonant at the second frequency.. .
|Microporous materials with fibrillar mesh structure and methods of making and using the same|
Microporous materials including a melt-processable, semi-crystalline, thermoplastic (co)polymer, wherein the thermoplastic (co)polymer is miscible in a compatible liquid when heated above a melting temperature of the semi-crystalline thermoplastic (co)polymer, further wherein the microporous material is comprised of a plurality of filaments substantially aligned in a first longitudinal direction, and a mesh extending laterally between the filaments, the mesh comprising a network of interconnected pores having a median diameter less than one micrometer. Methods of making and using such microporous materials (e.g.
|Device of monolithically integrated optoelectrics|
A method is disclosed for fabricating optoelectronic component structures and traditional circuit elements on a single silicon substrate. Specific examples of optoelectronic components include, but are not limited to: photodiode structures, light emitter structures and waveguide structures.
|Method for fabricating a damascene self-aligned ferrorelectric random access memory (f-ram) having a ferroelectric capacitor aligned with a three dimensional transistor structure|
A method for a non-volatile, ferroelectric random access memory (f-ram) device that includes a ferroelectric capacitor aligned with a preexisting structure is described. In one embodiment, the method includes forming an opening in an insulating layer over a contact in a planar surface of a substrate to expose at least a portion of the contact.
|Nanomachined structures for porous electrochemical capacitors|
Embodiments of the invention describe energy storage devices, porous electrodes, and methods of formation. In an embodiment, an energy storage device includes a porous structure containing multiple main channels that extend into an electrically conductive structure at an acute angle.
|Electrode, method for producing electrode, and energy device, electronic device, and transportation device including electrode|
Disclosed herein is an electrode for energy devices such as electric double layer capacitors, which includes conductive fibers made of carbon, such as carbon nanotubes, as an electrode active material and has a high capacitance. The electrode for energy devices includes a current collector and a plurality of conductive fibers (e.g., carbon nanotubes) provided to stand on a surface of the current collector so that their one ends are electrically connected to the surface of the current collector, wherein the conductive fibers are made of carbon and have carboxyl group-containing functional groups or oxo group-containing functional groups and hydroxyl group-containing functional groups attached thereto.
|Hearing aid with a wireless transceiver and method of fitting a hearing aid|
A hearing aid comprising a wireless transceiver (100) having an inductive antenna (101) and a trimming capacitor (104, 105, 300, 404) with at least two parallel signal paths, wherein at least one of said signal paths comprises a first capacitor (309, 310, 311, 312), a second capacitor (301, 302, 303, 304) and a switching transistor (305, 306, 307, 308) arranged such that the switching transistor (305, 306, 307, 308) is coupled in parallel with said first capacitor (309, 310, 311, 312) and coupled in series with said second capacitor (301, 302, 303, 304), whereby the voltage drop across the switching transistor (305, 306, 307, 308), when the switching transistor is set to off, will be lower than the voltage applied across the trimming capacitor (104, 105, 300, 404) due to voltage division between said first capacitor (309, 310, 311, 312) and said second capacitor (301, 302, 303, 304). The invention also provides a method of fitting a wireless transceiver (100) for a hearing aid..
|Switchable attenuation circuit for mems microphone sy|
A switch control circuit monitors a signal produced by a mems or other capacitor microphone. When a criterion is met, for example when the amplitude of the monitored signal exceeds a threshold or the monitored signal has been clipped or analysis of the monitored signal indicates clipping is imminent or likely, the switch control circuit operates one or more switches so as to selectively connect one or more capacitors to a signal line from the microphone, i.e., so as to connect a selected capacitance to the signal line to attenuate the signal from the microphone and, therefore, avoid clipping.
|Mems speaker device with an electronic test circuit|
A mems speaker device including a membrane that forms a first capacitor and a second capacitor, respectively, with a top plate and with a bottom plate. The device includes a driving circuit that operates, during a first operating period, to move the membrane into a first position, in which the membrane is close to the bottom plate, and during a second operating period, to move the membrane into a second position, in which the membrane is close to the top plate.
|Multi-bit resistance measurement|
An example embodiment is a circuit for determining a binary value of a memory cell. The circuit includes shunt capacitors having different capacitances to selectively couple with the memory cell, and a controller configured to iteratively charge the shunt capacitors to a first voltage until a selected shunt capacitor causes the first voltage to decay through the memory cell to a first reference voltage within a predetermined time range, determine a binary value of the most significant bits of the memory cell based on the selected shunt capacitor, charge the selected shunt capacitor to a second voltage after determining the binary value of the most significant bits of the memory cell, and determine a binary value of the least significant bits of the memory cell based on a decay of the second voltage at the selected shunt capacitor through the memory cell..
|Non-volatile resistive memory devices and methods for biasing resistive memory structures thereof|
The disclosed technology relates to a non-volatile resistive memory device and a method of using the same. In one aspect, the memory device comprises a plurality of memory cells interconnected by a plurality of bit lines, a plurality of word lines, a plurality of source lines and a plurality of form lines.
|Dc to ac conversion circuit|
A dc to ac conversion circuit including an inverter, a first inductor, a first capacitor, a second inductor and a second capacitor is provided. The inverter has two input contact points and two output contact points.
|Switching power supply device and method for circuit design of the switching power supply device|
A switching power supply device includes a rectifying circuit configured to rectify an ac voltage and to output a rectified voltage, a smoothing capacitor configured to smooth the rectified voltage and to output a smoothed voltage, a first dc-dc converter configured to convert the smoothed voltage into an intermediate voltage and to output the intermediate voltage, and a second dc-dc converter configured to convert the intermediate voltage into an output voltage and to output the output voltage substantially free of ripple. The first dc-dc converter is configured to perform a step-up operation, a step-up/down operation, and a step-down operation according to the smoothed voltage, and to output the intermediate voltage including a ripple or the intermediate voltage substantially free of ripple..
|Synchronous rectifying buck-boost converter|
A synchronous rectifying buck-boost converter includes a controller, first and second transistors, an inductor and a capacitor. The controller is connected to the gates of the first and second transistors for controlling on/off of the first and second transistors, and further controls the current of the inductor and charge/discharge of the capacitor.
|Bidirectional dc-dc converter and control method thereof|
Disclosed is a small-size, high-efficiency, isolated, bidirectional dc-dc converter. The bidirectional dc-dc converter includes a transformer in which windings are magnetically coupled, switching circuits, a diode which is connected in parallel with a switch, smoothing capacitors, and a control section.
|Electroconductive polymer solution and method for producing the same, electroconductive polymer material, and solid electrolytic capacitor using the same and method for producing the same|
Provided are an electroconductive polymer solution in which the carbon material has excellent dispersibility, an electroconductive polymer material which has a high electroconductivity and which can be produced by a simple method, and a solid electrolytic capacitor and a method for producing the same which has a low esr without increasing a leakage current. An electroconductive polymer solution according to an exemplary embodiment of the invention contains an electroconductive polymer, a polysulfonic acid or a salt thereof which functions as a dopant to the electroconductive polymer, a mixture of a polyacid and a carbon material, and a solvent..
|High surface area carbon materials and methods for making same|
In a method of making a high surface area carbon material, a precursor organic material is prepared. The precursor organic material is subjected to a first elevated temperature while applying a gaseous purge thereto for a first predetermined time.
|Electrical storage device|
An electric double-layer capacitor having a capacitor element, a package defining a closed space accommodating the capacitor element, and electrolytic solution loaded in the closed space. The package includes a body and a lid, and the body has a metallic portion and a resin portion.
|Dielectric ceramic and single-plate capacitor|
A dielectric ceramic that contains, as its main constituent, a perovskite-type compound containing ba and ti, and, with respect to the ti content of 100 parts by mole, contains re1 (re1 is at least one element of la and nd) in the range of 0.15 to 3 parts by mole, y in the range of 0.1 to 3 parts by mole, mg in the range of 0.3 to 13 parts by mole, and fe in the range of 0.01 to 5 parts by mole.. .
|Capacitor and method of manufacturing the same|
There is provided a capacitor, including: a substrate part including a first substrate having a groove portion and a second substrate positioned above the first substrate and having a protrusion portion; a first capacitance part formed on one surface of the first substrate and having a shape corresponding to that of the groove portion; and a second capacitance part formed on one surface of the second substrate and having a shape corresponding to that of the protrusion portion.. .
|Bone frame, low resistance via coupled metal oxide-metal (mom) orthogonal finger capacitor|
An orthogonal finger capacitor includes a layer having an anode bone frame adjacent a cathode bone frame, the anode bone frame having a first portion extending along an axis and a second portion extending perpendicular to the axis. A set of anode fingers extends from the first portion.
|Multilayer ceramic capacitor|
There is provided a multilayer ceramic capacitor. The capacitor includes: a multilayer body having a dielectric layer; and first and second internal electrodes disposed in the multilayer body, the dielectric layer being disposed between the first and second internal electrodes, wherein, in a cross-section taken in a width-thickness direction of the multilayer body, an offset portion is defined as a portion where adjacent first and second internal electrodes do not overlap with each other, and a ratio (t1/td) of a width t1 of the offset portion to a thickness td of the dielectric layer is 1 to 10..
|Electromagnetic coil drive device|
An electromagnetic coil drive device has a semiconductor switch connected in series with an electromagnetic coil for controlling a current supplied to the coil; a capacitor; a comparator for comparing a voltage to charge and discharge the capacitor with two different voltages, for generating a signal to operate on-off of the semiconductor switch in accordance with a result of a comparison; a first charging circuit to charge the capacitor based on a voltage applied to the coil; and a discharging circuit to discharge the capacitor. The first charging circuit has a first resistor and at least one compensating circuit connected in parallel with the first resistor; and a resistor and a zener diode are connected in series in the compensating circuit..
|Liquid crystal display device|
A first and second region of a display device includes a plurality of scanning signal lines, a plurality of pixel electrodes, and a plurality of holding capacitance wires to which modulation signals are supplied. The plurality of scanning signal lines in the first and second regions are independently scanned.
A display device includes a display area including a gate line and a data line and a gate driver connected to an end of the gate line, the gate driver including at least one stages integrated on a substrate configured to output a gate voltage, in which the stage includes an inverter unit and an output unit, in which the output unit includes a first transistor and a first capacitor. The first transistor includes an input terminal applied with a clock signal, a control terminal connected to the node q, and an output terminal connected to a gate voltage output terminal through which the gate voltage is output.