This page is updated frequently with new Level Shift-related patent applications.
| Wide frequency/voltage-ratio buffer with adaptive power consumption|
Certain aspects of the present disclosure provide methods and apparatus (e.g., a level shifter) for buffering an oscillating signal generated by an oscillator. One example apparatus generally includes an amplifier having a first amplification stage configured to amplify the oscillating signal generated by the oscillator and a second amplification stage configured to amplify an inverse of the oscillating signal generated by the oscillator; and a sensing circuit configured to adjust an operational bandwidth of the amplifier based on a frequency of the oscillating signal..
| Level shifter applicable to low voltage domain to high voltage domain conversion|
A level shifter includes a latch circuit having a first fet and a second fet; an input circuit having a third fet and a fourth fet, the gates of the first and second fets being coupled to the drains of the fourth and third fets, respectively; a first resistive device (resistor, diode-connected fet) coupled between and in series with the first and third fets between a first voltage rail and a second voltage rail; and a second resistive device (resistor, diode-connected fet) coupled between and in series with the second and fourth fets between the first and second voltage rails. The gates of the third and fourth fets are configured to receive a first set of complementary voltages, and a second set of complementary voltages are configured to be generated at the gates of the first and second fets, respectively.
|Power supply voltage switching circuit capable of preventing current leakage|
A power supply voltage switching circuit includes a power selecting module, a level shifting module, and a supply switching module. The power selecting module receives a first supply signal and a second supply signal, and outputs an intermediate supply signal according to the first supply signal and the second supply signal.
Ememory Technology Inc.
A level shifter includes a first and a second transistor coupled to a first power supply voltage terminal supplied with a second power supply voltage in parallel, the first transistor having a first gate connected to a drain of the second transistor and a first gate insulating film, and the second transistor having a second gate connected to a drain of the first transistor and a second gate insulating film, a third and a fourth transistor coupled to a reference voltage terminal in parallel, the third transistor having a third gate supplied with a first control signal and a third gate insulating film, and the fourth transistor having a fourth gate supplied with a second control signal and a fourth gate insulating film, a first and a second depression transistor, and a timing control unit placed between a second power supply voltage terminal and the reference voltage terminal.. .
Renesas Electronics Corporation
|High-side circuits with modified diode and layout placement thereof|
A high-side circuit, adapted for a switched-mode converter, includes a level shifter, a high-side driver, a high-side transistor, a capacitor, and an active diode. The level shifter receives a first signal to generate a set signal.
Vanguard International Semiconductor Corporation
|Low-power type-c receiver with high idle noise and dc-level rejection|
Techniques for low-power usb type-c receivers with high dc-level shift tolerance and high noise rejection are described herein. In an example embodiment, a usb-enabled device comprises a receiver circuit coupled to a configuration channel (cc) line of a usb type-c subsystem.
Cypress Semiconductor Corporation
|Phase locked loop circuit, integrated circuit, communication unit and method therefor|
A phase locked loop circuit includes a voltage controlled oscillator, vco, configured to receive an oscillator tuning voltage; a phase detector configured to receive an input signal and a reference signal and generate a phase difference pulse signal that is varied in accordance with the oscillator tuning voltage; a loop filter having an input and an output; and a level shifter circuit coupled to an output of the phase detector and the loop filter input and configured to apply a level shift to the phase difference pulse signal such that the level shift is configured to compensate vco gain and the loop filter averages the phase difference pulse signal to output an averaged signal to the vco.. .
Freescale Semiconductor, Inc.
|Dynamic voltage level shifters employing pulse generation circuits, and related systems and methods|
Dynamic voltage level shifters employing pulse generation circuits are disclosed. In one aspect, a dynamic voltage level shifter includes a dynamic voltage level shifting circuit.
|Electronic circuit and semiconductor device|
An electronic circuit includes a first level shift circuit, a second level shift circuit, an internal circuit, a high voltage circuit, first and second transistors, and first and second protective circuits. The first and second protective circuits perform control the first and second transistors so as to make them non-conductive when at least one of a plurality of types of power supply voltages becomes equal to or less than a predetermined value..
|Level shifter and parallel-to-serial converter including the same|
A level shifter circuit includes a level shifting unit configured to receive signals that may vary in a first range via a positive input terminal and a negative input terminal, respectively and to output signals that may vary in a second range to a positive output terminal and a negative output terminal, respectively, where the second range is larger than the first range, a first pre-charging unit configured to pre-charge the positive output terminal to a predetermined level when a clock is in a first level, and a second pre-charging unit configured to pre-charge the negative output terminal to the predetermined level when the clock is in the first level.. .
Sk Hynix Inc.
Mos pass transistors and level shifters including the same
A mos pass transistor includes a semiconductor layer having first conductivity, a trench isolation layer disposed in the semiconductor layer to define a first active region and a second active region, a first junction region having second conductivity, disposed in the first active region, and being in contact with a first sidewall of the trench isolation layer, a second junction region having the second conductivity, disposed in the second active region, being in contact with a second sidewall of the trench isolation layer, and being spaced apart from the first junction region, and a gate electrode disposed over the trench isolation layer. A lower portion of the gate electrode extends from a top surface of the trench isolation layer into the trench isolation layer to a predetermined depth..
Sk Hynix Inc.
Switching regulator current sensing circuits and methods
In one embodiment, a switching regulator includes an inductor, a first switch, and a second switch. The first and second switches generate current in the inductor.
Level shifting circuit and the same
A level shifting circuit includes a transistor output unit that receives a first power supply signal and convert the first power supply signal to a second power supply signal having a different level from the first power supply signal and a current provision unit that provides a current to an output terminal of the transistor output unit when the first power supply signal of the transistor output unit is inputted to shorten a prolonged portion of the second power supply signal. Therefore, the level shifting circuit may provide an additional current to the output terminal of the transistor output unit to shorten a prolonged portion of the output voltage..
Magnachip Semiconductor, Ltd.
High voltage switching circuitry for a cross-point array
A system includes a cross-point memory array and a decoder circuit coupled to the cross-point memory array. The decoder circuit includes a predecoder having predecode logic to generate a control signal and a level shifter circuit to generate a voltage signal.
Unity Semiconductor Corporation
Level shift circuit
The present invention provides a level-shift circuit that can suppress the malfunction caused by the noise due to the on/off of a level-shift transistor and the dv/dt noise due to external noise. The present invention provides a level-shift circuit for transmitting a signal from a primary potential side to a secondary potential side, comprising: a first serial circuit a first resistance including serially-connected to a first switching element; a second serial circuit including a second resistance serially-connected to a second switching element; a latch malfunction protection circuit for which the respective output terminals of the first and second serial circuits are connected to an input terminal; a latch circuit for receiving a signal outputted from the latch malfunction protection circuit; and a capacitor connected between drain terminals of the first resistance and the first switching element and between drain terminals of the second resistance and the second switching element..
Fuji Electric Co., Ltd.
Level shift circuit
An input part is supplied with a low voltage from a low voltage power supply line. A level shift part and an output part are supplied with a high voltage from a high voltage power supply line.
Voltage level shifter, and embedded nonvolatile memory and system using the same
A voltage level shifter may include a first input unit, a second input unit, a first mirror unit, a second mirror unit, and a clamping block. The first and second input units may receive a first input signal and a second input signal, respectively, and form current paths of a negative output node and a positive output node.
Sk Hynix Inc.
Circuits for driving data lines
A circuit includes: a first data line; a second data line; a write driver including first and second transistors; a first switch connected in series with the first transistor to form a first series-connected pair; a second switch in series with the second transistor to form a second series-connected pair; and a level shifter which includes the first and second transistors. The first series-connected pair is coupled between a first voltage node and the first data line.
Taiwan Semiconductor Manufacturing Company, Ltd.
A data communications receiver including a receiver coil, a first amplification stage coupled to the receiver coil, the first amplification circuitry to differentially amplify at least part of signal received by the receiver coil relative to a threshold, a second amplification stage coupled to receive the differentially amplified signal from the first amplification stage, the second amplification stage comprising a current mirror, and hysteretic level shifting circuitry to shift a level of part of the signal received by the receiver coil, the threshold or part of the signal received by the receiver coil and the threshold such that, in response to the at least part of the signal received by the receiver coil having crossed the threshold, a threshold crossing in the other direction is delayed.. .
Power Integrations Switzerland Gmbh
Level shifter and approach therefor
Aspects of the disclosure are directed to communications between respective power domains (circuitry) that may operate in a stacked arrangement in which the each domain operates over a different voltage range. A first circuit provides differential outputs that vary between first and second voltage levels, based on transitions of an input signal received from a first one of the power domains.
Bipolar gate driver
According to one aspect, embodiments of the invention provide a gate driver comprising a level shifter circuit configured to be coupled to a controller, to receive control signals from the controller, each control signal having a voltage with respect to a control ground, and to redefine the voltage of each control signal with respect to a chip ground to generate redefined control signals, a gate driver chip coupled to the level shifter circuit and configured to be coupled to at least one semiconductor device, the gate driver chip further configured to provide bipolar control signals to the at least one semiconductor device based on the redefined control signals, and at least one power source configured to provide at least one positive supply voltage to the gate driver chip and at least one negative supply voltage to the gate driver chip and to the chip ground.. .
Schneider Electric It Corporation
Voltage level shifter
A voltage level shifter includes: in stages a pull-down driving unit suitable for receiving an input signal swinging between a ground voltage and a first supply voltage, and pull-down driving an output node to the ground voltage according to a voltage level of the input signal, wherein an output signal outputted through the output node swings between the ground voltage level and a second supply voltage level higher than the first supply voltage; a pull-up driving unit suitable for pull-up driving the output node, to the second supply voltage according to the voltage level of the input signal; a bias generation unit suitable for generating a bias voltage fixed to a preset voltage level; and a bias operation unit coupled between the output node and the pull-down driving unit, and suitable for lowering a voltage level of the output node in stages based on the bias voltage to supply the lowered voltage to the pull-down driving unit when a pull-down operation is performed by the pull-down driving unit.. .
Sk Hynix Inc.