| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 327318000 |
In input or output circuit
| 44 |
| 327310000 |
Transient or signal noise reduction
| 38 |
| 327327000 |
Using only transistor active elements
| 23 |
| 327323000 |
Feedback
| 7 |
| 327315000 |
Providing constant input/output amplitude level ratio | 4 |
| 20090085633 | ACTIVE VOLTAGE-CLAMPING GATE DRIVING CIRCUIT - An active voltage-clamping gate driving circuit comprises a difference comparison circuit for receiving a reference voltage, a gate driving signal, and a preset voltage level, and outputting a voltage comparison signal; and a gate driving circuit for receiving an input signal and the voltage comparison signal, and outputting a gate driving signal. The voltage comparison signal controls the gate driving circuit. When a level difference between the gate control signal and the reference voltage is equal to the preset voltage level, the gate driving circuit is turned off, so that the level of the gate control signal is clamped to the preset voltage level, and the gate driving circuit does not output quiescent direct current under the clamped state. | 04-02-2009 |
| 20140132327 | CHARGE PUMP MODULE AND VOLTAGE GENERATION METHOD THEREOF - A charge pump module including a ratio control circuit and a charge pump circuit is provided. The ratio control circuit provides a boost ratio based on a control signal. The ratio control circuit includes at least two ratio generation circuits having different boost ratios. The ratio control circuit dynamically switches between the ratio generation circuits to adjust the provided boost ratio based on the control signal. The charge pump circuit is coupled to the ratio control circuit. The charge pump circuit receives an input voltage and converts the input voltage into an output voltage based on the boost ratio provided by the ratio control circuit. Furthermore, a voltage generation method of a charge pump module is also provided. | 05-15-2014 |
| 20110163791 | OUTPUT CIRCUIT AND SEMICONDUCTOR DEVICE INCLUDING PRE-EMPHASIS FUNCTION - Disclosed is an output circuit that receives an input signal and that outputs a pre-emphasized output signal when an input signal transitions. The output circuit comprises a transistor applying de-emphasis to the output signal and a de-emphasis level control circuit comprising another transistor controlling a de-emphasis level. The transistor applying de-emphasis and the transistor controlling a de-emphasis level are connected in common to a current source and transistor controlling a de-emphasis level is made conductive at a time of de-emphasis to limit a current flowing through the transistor applying de-emphasis to the output signal. | 07-07-2011 |
| 20130241621 | System and Apparatus for Driver Circuit for Protection of Gates of GaN FETs - A half-bridge power circuit comprises a first gallium nitride field effect transistor (GaN FET); a first driver coupled to a gate of the first GaN FET; an anode of a capacitor coupled to an output of the driver and a source of the first GaN FET; a diode having a cathode coupled to the cathode of the capacitor; and a bootstrap capacitor clamp (BCC) controller, including: a field effect transistor (FET) coupled to an anode of the diode, and a comparator coupled to a gate of the FET, the comparator configured to receive as inputs: a) a signal representative of an input voltage (VDRV) applied to the FET; b) a ground; c) a boot signal representative of a voltage at the anode of the capacitor (Boot); and d) a signal representative of a voltage at the source of the first GaN FET (SW). | 09-19-2013 |
| 327317000 |
Distortion compensation | 4 |
| 20120119810 | Non-Linear Model with Tap Output Normalization - A distortion model for a predistortion system uses tap output normalization to normalize the variance of data signals generated from different basis functions in a set of basis functions to a predetermined value. The distortion model is used by a distortion modeling circuit to calculate the weighting coefficients for a digital predistorter. | 05-17-2012 |
| 20120119811 | Configurable Basis-Function Generation for Nonlinear Modeling - Digital predistorter circuits with selectable basis function configurations are described. In some embodiments, an input scaling block is introduced prior to a basis function generator structure. The input scaling factor is based on the input signal's average power. In other embodiments, configurable connection coefficients are used to construct the orthogonal basis functions. Multiple sets of tap weights for the predistorter are maintained, each set corresponding to a given basis function configuration. In an example method for pre-distorting an input signal to compensate for distortion introduced by an electronic device, a statistic characterizing the input signal is calculated, and one of a pre-determined set of basis function configurations is selected, based on the statistic. A set of pre-distortion model weights corresponding to the selected basis function configuration are determined, after which the selected basis function configuration and the corresponding set of pre-distortion model weights are applied to the input signal. | 05-17-2012 |
| 20140320191 | DIFFERENTIAL ANALOG SIGNAL PROCESSING STAGE WITH REDUCED EVEN ORDER HARMONIC DISTORTION - The even order harmonic distortion in a differential circuit is reduced or eliminated by treating the amplitude and phase mismatch sources that cause the distortion as impedance mismatches, and utilizing switched resistor circuitry that adjusts the load resistance to reduce the effects of the amplitude mismatch sources, and switched capacitor circuitry that adds shunt capacitance to reduce the effects of the phase mismatch sources. | 10-30-2014 |
| 20140368251 | DISTORTION COMPENSATION DEVICE - A distortion compensation device compensates a distortion component generated in a nonlinear circuit having a nonlinear input-output characteristic. The distortion compensation device includes a predistorter and an estimator. The predistorter converts an input signal into an inverse characteristic signal by using a compensation coefficient so that an estimation value of an inverse characteristic to the nonlinear input-output characteristic is given to the input signal. The estimator generates the compensation coefficient based on the input signal, the inverse characteristic signal and an output signal of the nonlinear circuit. | 12-18-2014 |
| 327325000 |
Using only diode active elements | 4 |
| 20080231339 | Double quench circuit for an avalanche current device - A double quench circuit for an avalanche current device is provided in which the circuit includes an avalanche current device having a first terminal responsive to a bias voltage to reverse bias the avalanche current device above its avalanche breakdown voltage. A first quench circuit is responsive to the bias voltage and coupled to the first terminal of the avalanche device for reducing the amount of the avalanche current passing through the avalanche device. A second quench circuit is coupled to a second terminal of the avalanche device for reducing the amount of the avalanche current passing through the avalanche device. | 09-25-2008 |
| 20110285447 | DRIVE CIRCUIT - A drive circuit includes a transformer T | 11-24-2011 |
| 20130154711 | METHOD, POWER UNIT, AND POWER SYSTEM HAVING GATE VOLTAGE LIMITING CIRCUIT - A power unit (e.g., inverter module) includes a housing and a switch attached to the housing. The switch may be configured to be electrically coupled to a remotely-mounted drive circuit through two or more wire leads. The power unit also includes a clamping circuit electrically coupled to terminals of the switch and in parallel with the switch. The clamping circuit may be disposed inside the housing or on an outer surface of the housing, and is configured to limit a voltage across the switch. | 06-20-2013 |
| 20120013385 | APPARATUS FOR PROTECTING ANALOG INPUT MODULE FROM OVERVOLTAGE - Disclosed is an apparatus for protecting an analog input module from overvoltage, the apparatus including an analog input module and a stabilization unit. The analog input module converts one of a plurality of positive/negative analog signals inputted from the outside thereof into a digital signal and insulates the converted digital signal. The stabilization unit supplies voltages of the positive/negative analog signals to the analog input module when the voltage levels of the plurality of positive/negative analog signals are higher than the levels of positive/negative operating voltages in the analog input module. | 01-19-2012 |
| 327330000 |
With rectifier or nonlinear impedance | 3 |
| 20090015312 | Calibration circuit, semiconductor device including the same, and memory module - A calibration circuit includes: a replica buffer that drives a calibration terminal; a pre-emphasis circuit connected in parallel to the replica buffer; and an up-down counter that changes impedances of the replica buffer and the pre-emphasis circuit. A replica control circuit causes the replica buffer to conduct based on an impedance code, and a pre-emphasis control circuit causes the pre-emphasis circuit to conduct in an initial stage of a conducting period of the replica buffer. Thereby, even when an external resistor is shared among a plurality of semiconductor devices, for example, a voltage appearing in the calibration terminal can be stabilized at a higher speed. | 01-15-2009 |
| 20090278585 | ATTENUATION SYSTEM AND METHOD - An attenuation system includes an attenuator, a control unit, a comparator, two couplers, and two convert circuits, wherein a signal is attenuated by the attenuator via the first coupler and sent to a functional unit. The signal is output to the first convert circuit via the first coupler to be converted to a first digital signal. The first digital signal is output to a first input end of the comparator. The damped signal is output to the second convert circuit via the second coupler to be converted to a second digital signal. The second digital signal is output to a second input end of the comparator. The comparator compares the first digital signal and the second digital signal, and transmits a factual decrement to the control unit. The control unit compares the factual decrement and the preset decrement, and accordingly adjusts the parameter of the attenuator. | 11-12-2009 |
| 20120242391 | VOLTAGE-LIMITING CIRCUIT - A voltage-limiting circuit, including a series branch circuit having a plurality of power switching devices, a plurality of energy temporary-storage circuits, and a centralized voltage-limiting circuit for limiting voltage for the series branch circuit. Each power switching device includes a control terminal, a high-end, and a low-end, and is connected in parallel with one energy temporary-storage circuit. The energy temporary-storage circuits include clamping diodes, energy storage capacitors, static voltage-sharing resistors, and energy return ends. In each energy temporary-storage circuit, the energy storage capacitors are connected in parallel with the static voltage-sharing resistors to form the energy return ends, and then connected in series with the clamping diodes. The centralized voltage-limiting circuit includes a voltage-limiting functional circuit and a plurality of energy concentration diodes for concentrating the energy temporarily stored by the corresponding energy temporary-storage circuits. | 09-27-2012 |
| 327324000 |
By using diverse-type nonlinear devices | 2 |
| 20110279163 | SIGNAL LEVEL CROSSING DETECTOR CIRCUIT - A signal level crossing detector circuit includes a DC isolator and a detector circuit. The DC isolator has at least a first input, which is operable to receive a high voltage AC signal, and at least a first capacitor, a first plate of the first capacitor being electrically connected to the first input. The detector circuit is operable at a low voltage and has at least a first detector input, the first detector input being electrically connected to a second plate of the first capacitor, the low voltage detector circuit being operable to provide a change in output signal in dependence on a high voltage AC signal on the first input crossing a predetermined signal level. The signal level crossing detector may be single ended or differential. | 11-17-2011 |
| 20120242390 | BRIDGE CIRCUIT PROVIDING A POLARITY INSENSITIVE POWER CONNECTION - In one general aspect, an apparatus can include a polarity insensitive input coupled to a gate of a metal-oxide-semiconductor field effect transistor (MOSFET) device. The MOSFET device can have a gate dielectric rating greater than twenty-five volts. The apparatus can also include a fixed polarity output coupled to a source of the MOSFET device. | 09-27-2012 |
| Entries |
| Document | Title | Date |
|---|
| 20090027099 | Output driver circuit having a clamped mode and an operating mode - An output driver circuit | 01-29-2009 |
| 20090251191 | OPERATING CIRCUIT - An operating circuit includes a differential amplifier stage, which has a first input node for receiving a first input signal of a differential input, a second input node for receiving a second input signal of the differential input, a first output node for outputting a first output signal of a differential output, and a second output node for outputting a second output signal of the differential output; an offset current stage coupled to the first output node and the second output node for inducing a first offset current at the first output node and a second offset current at the second output node; and a first clamping device coupled to the first output node for selectively clamping an output voltage at the first output node according to the first output signal at the first output node. | 10-08-2009 |
| 20090256616 | HOT SWAP CONTROLLER WITH ZERO LOADED CHARGE PUMP - The present invention includes a pass transistor that limits current drawn from a circuit without using a series resistor and while drawing minimal current from an external supply. A current mirror of the output current is formed and compared to a reference current. When the output current increases, the mirror current increases proportionally, and when a threshold is crossed, the pass transistor is turned off. The pass transistor is biased from a charge pump that provides a voltage, a current from which a current mirror is drawn that controls the pass transistor. | 10-15-2009 |
| 20090278584 | CELL-BASED INTEGRATED CIRCUIT AND A METHOD OF OPERATING A THYRISTOR CIRCUIT IN A STANDARD CELL OF A CELL-BASED INTEGRATED CIRCUIT - A cell-based integrated circuit comprises a first supply voltage terminal and a second supply voltage terminal. A standard cell comprising a thyristor circuit comprising a first input inputs the first supply voltage. A second input inputs the second supply voltage. A first output outputs a first output voltage corresponding to the first supply voltage and a second output to output a second output voltage corresponding to the second supply voltage. | 11-12-2009 |
| 20100026359 | INTERFACE CIRCUIT FOR BRIDGING VOLTAGE DOMAINS - The invention is directed to an interface circuit for bridging voltage domains. The interface circuit receives an input signal, having a larger voltage domain, and safely provides the signal to an electronic device which has a smaller voltage domain. The interface circuit may include a transistor configured as a source follow so that an output of the transistor follows the input of the transistor. A blocking voltage may be provided at the input of the transistor to provide a voltage bias, blocking a range of input voltages to the transistor. The transistor may also have a blocking voltage at a drain terminal of the transistor, to block any output voltage above the blocking voltage. | 02-04-2010 |
| 20100026360 | RELAY CIRCUIT, INFORMATION PROCESSING APPARATUS, AND RELAY METHOD - A relay circuit for relaying signal transmission between a first circuit driven by a first voltage and a second circuit driven by a second voltage different from the first voltage, the relay circuit includes: a waveform shaping circuit that obtains a shaped voltage by shaping a waveform of the second voltage in order to make a change of the second voltage steeper; and a buffer circuit that is driven by the first voltage and interrupts a signal transmission by the buffer circuit if the shaped voltage obtained by the waveform shaping circuit falls to or below a predetermined value, the shaped voltage being input to the buffer circuit as a control signal. | 02-04-2010 |
| 20100045357 | Clamp Circuit for Clamping Inrush Voltage Induced by Hot Plugging and Related Chip - An inrush voltage clamping circuit for an electronic device for clamping an inrush voltage induced by hot plugging is disclosed. The clamp circuit includes a buffer unit and a clamp unit. The buffer unit is coupled to an input power end for receiving an inrush current of the inrush voltage. The clamp unit is coupled to the input power end and the buffer unit for controlling the buffer unit to receive the inrush current according to an input voltage of the input power end. | 02-25-2010 |
| 20100066428 | PIN-SHARING ANALOG FRONT-END PROCESSING APPARATUS AND METHOD FOR PIN-SHARING THEREOF - An analog front-end processing apparatus capable of sharing pins includes a plurality of positive pins, a negative pin, a plurality of positive clamping circuits, a negative clamping circuit, a plurality of sample and hold circuits and a plurality of adjusting circuits. The positive clamping circuits have positive signals fixed at their corresponding target positive voltages. The negative clamping circuit has a negative signal fixed at a first reference voltage. Each sample and hold circuit has a positive input terminal and a negative input terminal, wherein a voltage difference between the two input terminals is substantially equal to a voltage difference between the corresponding target positive voltage and the first reference voltage during a sample period, and a voltage difference between the two input terminals is equal to a voltage difference between the corresponding target negative voltage and a second reference voltage during a hold period. | 03-18-2010 |
| 20100073063 | 3-Level Line Driver - Included are embodiments of a 3-level line driver. At least one embodiment of a method includes generating a repetitive wave; receiving an input signal and a complement of the input signal; providing a 3-level output signal; and filtering a feedback signal, the means for filtering including at least one of the following: a 0 | 03-25-2010 |
| 20100109740 | Clamp networks to insure operation of integrated circuit chips - Clamp networks are provided to insure successful operation of a variety of electronic circuits that are realized in the form of integrated circuit chips. These networks are especially suited for use in chips in which on-chip circuits generate a voltage to bias the chip substrate relative to the chip ground. The clamp networks are configured to drive a current between the chip ground and the chip substrate whenever the chip substrate begins to rise above the chip ground during turn on of the chip input voltage. The clamp networks thus insure that the chip substrate is properly biased when the input voltage has been established and that the chip, therefore, functions as intended. | 05-06-2010 |
| 20100117707 | CLAMP CONTROL CIRCUIT HAVING CURRENT FEEDBACK - In accordance with an aspect of the present invention, an external FET driving circuit includes a driving portion, a drain-to-gate clamp portion and a current feedback portion. The driving portion provides a driving signal to the external FET. The drain-to-gate clamp portion protects the external FET from flyback current, when the external FET is quickly turned OFF. The current feedback portion controls the driving signal provided by the driver. | 05-13-2010 |
| 20100176863 | Signal Converter And Method Thereof - A signal converter and a method thereof are provided. The signal converter and the method are adapted for a voltage signal converting application. The signal converter and the method are adapted for converting a high voltage sine wave signal into a low voltage full wave and/or low wave signal, and improving the stability of the circuit. The signal converter is configured in an IC type, and can be integrated with other ICs, thus improving the systematic integration. | 07-15-2010 |
| 20100295595 | ELECTRONIC CLAMPS FOR INTEGRATED CIRCUITS AND METHODS OF USE - An electronic clamp is provided for an integrated circuit having a first voltage island ( | 11-25-2010 |
| 20110050316 | POWER TRANSISTOR WITH TURN OFF CONTROL AND METHOD FOR OPERATING - A circuit has a power transistor, a driver control circuit, a variable clamp circuit and a turn-off control circuit. The power transistor has a first current electrode coupled to a first power supply terminal, a second current electrode as an output of the circuit, and a control electrode. The driver control circuit has an output coupled to the control electrode of the power transistor for controlling the power transistor during an active mode of the circuit. The variable clamp circuit is coupled between the output of circuit and the first power supply terminal. The turn-off control circuit is coupled to the variable clamp circuit and selects clamping levels of the variable clamp circuit during a transition from the active mode to an inactive mode of the circuit. | 03-03-2011 |
| 20110156793 | SYSTEMS AND METHODS FOR DRIVING HIGH POWER STATES USING LOWER VOLTAGE PROCESSES - A battery assisted level shifter comprises a pull up transistor pulling up an output when a received input signal is high, a pull down transistor pulling down the output when the received input signal is low, and a battery element to provide voltage offsets. The battery element can be implemented using one or more pull-up transistors for assisting with pulling up the output. The level shifter can be used in class-D amplifiers, DC-DC power converters and interfaces between circuits having different reference voltages. | 06-30-2011 |
| 20120013383 | VOLTAGE CLAMP CIRCUIT AND INTEGRATED CIRCUIT INCORPORATING SAME - A voltage clamp circuit includes a power supply, a first element connected with the power supply to output a constant current, a third element configured to allow a current to pass through when a voltage of a predetermined value or more is applied; and a second element configured to output a voltage according to a voltage generated by the first and third elements. | 01-19-2012 |
| 20120038407 | Circuit Arrangement and Input Assembly - A circuit arrangement in which a further electronic component for connecting and amplifying an electrical voltage is arranged between a first series arm and a second series arm to achieve limiting of a voltage between a first clamping point and a second clamping point in the circuit arrangement. An input of the second component is connected by a resistor to the output of a third component, and a device for producing a second reference voltage is arranged between the second series arm and the second component such that it is possible lower the voltage at the first clamping point when the flow of current through the load resistor is interrupted. | 02-16-2012 |
| 20120092057 | VOLTAGE-MODE DRIVER WITH CONTROLLABLE OUTPUT SWING - A circuit includes a first node, a second node, a pull-up circuit selectively coupled to the first node or the second node, a pull-down circuit selectively coupled to the first node or the second node, and a resistive circuit. The circuit is configured to operate in a full-swing mode or in a de-emphasis mode based on an electrical coupling of the resistive circuit between the first node and the second node. | 04-19-2012 |
| 20120223758 | Bidirectional Input/Output Circuit - Level-shifting devices and methods allow signals to be passed between input/output (I/O) ports. One such device comprises a first output driver that drives a first I/O port in response to a first control signal. A second output driver drives a second I/O port in response to a second control signal. A first comparator circuit, responsive to a first reference voltage and a voltage at the first I/O port, generates the second control signal. A limiter circuit limits driving of the second I/O port, by the second driver, to a limiting voltage that responsive to a the second I/O port over a first range of signaling voltages, and constrained to a set value over a second range. A voltage reference generating circuit generates a second reference voltage. A second comparator circuit generates the first control signal in response to the second reference voltage and the second I/O port. | 09-06-2012 |
| 20120268186 | TRANSMISSION CHANNEL FOR ULTRASOUND APPLICATIONS - A transmission channel includes at least one high voltage buffer block having buffer transistors and respective buffer diodes, being electrically coupled between respective voltage reference terminals, these buffer transistors being also coupled to a clamping block, in turn including clamping transistors connected to at least one output terminal of this transmission channel through diodes coupled to prevent the body diodes of the clamping transistors from conducting. The transmission channel includes at least one reset circuit having diodes and being electrically coupled between circuit nodes of the high voltage buffer block and of the clamping block, these circuit nodes being in correspondence with conduction terminals of the transistors comprised into the high voltage buffer block and into the clamping block. | 10-25-2012 |
| 20130021082 | LOW VOLTAGE DIFFERENTIAL SIGNALING (LVDS) CIRCUITRY AND METHOD FOR DYNAMICALLY CONTROLLING COMMON MODE VOLTAGE AT INPUT - Low voltage differential signaling (LVDS) circuitry and method for dynamically controlling the common mode voltage at the input of an LVDS receiver. The common mode voltage of the incoming LVDS signal is monitored. The common mode voltage at the input of the LVDS receiver is clamped at a clamp voltage when the common mode voltage of the incoming LVDS signal is less than a predetermined voltage, and allowed to track it otherwise. | 01-24-2013 |
| 20130021083 | ACTIVE CLAMP CIRCUIT - According to one embodiment, an active clamp circuit includes a first switch element, a first diode, a first resistance, a first control circuit and a second control circuit. The first diode is connected to the first switch element and breaks down by an overvoltage applied to the first switch element. The first resistance is connected to the first diode and detects a current through the first diode. The first control circuit is configured to amplify a voltage across the first resistance and controls a current through the first switch element. The second control circuit is configured to control a conduction of the first switch element in accordance with the voltage across the first resistance. | 01-24-2013 |
| 20130043925 | SEMICONDUCTOR INTEGRATED CIRCUIT HAVING VOLTAGE STABILIZING CIRCUIT - A semiconductor integrated circuit includes a first voltage supply unit, a second voltage supply unit configured to supply a voltage with a level different from that of the first voltage supply unit, and a voltage stabilizing unit connected between the first and second voltage supply units, and including at least one discharge path that includes a clamping section configured to temporarily drop a level of a voltage introduced from the first or second voltage supply unit, and a discharge section configured to discharge the voltage having passed through the clamping section to the second or first voltage supply unit. | 02-21-2013 |
| 20130229219 | Digital Input Unit - A digital input unit for an automation device includes at least one current drawing DC input channel for connecting a transducer operated at a nominal DC voltage, where the input channel is configured to set the current based on an input voltage (UEM) according to an input characteristic curve. Measures are proposed, as a result of which the digital input unit is suitable for connecting transducers of different supply voltages, where the digital input unit is operable with a reduced power loss. | 09-05-2013 |
| 20130257504 | Clamping Circuit - A clamping circuit includes a clamping element with a control terminal and a load path that is coupled between a first circuit node and a second circuit node. A control circuit is coupled between the first circuit node and the second circuit node and is also coupled to the control terminal of the clamping element. The control circuit includes at least one snap-back unit with two load terminals and is only coupled between the first circuit node and the control terminal of the clamping element. The snap-back unit has an electrical resistance between the two load terminals and is configured to reduce the electrical resistance when a voltage between the two load terminals reaches a given threshold value. | 10-03-2013 |
| 20130278318 | SIGNAL PROCESSING APPARATUS AND METHOD - An apparatus and a method for processing a signal, and for estimating a point corresponding to a maximum slope from an envelope of an input signal, are provided. A signal processing apparatus includes an envelope detecting unit configured to detect an envelope of an input signal. The signal processing apparatus further includes a correcting unit configured to correct slopes, each of the slopes being between respective points of the envelope, based on information on a clipping interval of the envelope. The signal processing apparatus further includes an estimating unit configured to estimate a point, of the envelope, in which a corrected slope, among the corrected slopes, includes a maximum value. | 10-24-2013 |
| 20130321055 | HIGH VOLTAGE CLAMP CIRCUIT - This document discloses, among other things, a voltage clamp circuit where an output voltage equals an input voltage for at least a portion of a first range of input voltages, and where the output voltage is less than the input voltage for at least a portion of a second range of input voltages. | 12-05-2013 |
| 20140139281 | WINDOW REFERENCE TRIMMING FOR ACCESSORY DETECTION - This document discusses, among other things, a detection circuit configured to receive an output of a window comparator over a range of input values and to measure a difference between first and second thresholds of the window comparator, and a trim circuit configured to adjust at least one of the first or second thresholds using the measured difference between the first and second thresholds. | 05-22-2014 |
| 20140266380 | INTERFACE AND RELATED METHOD FOR CONNECTING SENSOR EQUIPMENT AND A PHYSIOLOGICAL MONITOR - An interface to connect sensor equipment and a physiological monitor includes a first connector to receive power from a first channel of the monitor and a second connector to receive power from a second channel of the monitor. The power from each of the first and second channels of the monitor is combined within the interface. The interface further includes a third connector to provide the combined power to the sensor equipment; a voltage converter to rescale the voltage of the combined power that is provided to the sensor equipment; and a scaling circuit to reduce the voltage of a signal representing a measured physiological parameter. The signal representing the measured physiological parameter is sent from the sensor equipment to the monitor. The interface is advantageous to allow sensor equipment to be sufficiently powered by a monitor that would not typically provide enough power. | 09-18-2014 |
| 20140361823 | DIGITAL POWER GATING WITH GLOBAL VOLTAGE SHIFT - A system which may be implemented on an integrated circuit including a global supply bus, a gated supply bus, a functional circuit receiving voltage from the gated supply bus, and a digital power gating system. The digital power gating system includes gating devices, a power gating control system, and a global control adjuster. The gating devices are coupled between the global and gated supply buses and are controlled by a digital control value. The power gating control system performs power gating by successively adjusting the digital control value to reduce a voltage of the gated supply bus to a state retention voltage level. The global control adjuster performs a global adjustment of the digital control value to increase the voltage of the gated supply bus to prevent it from falling below the state retention voltage level in response to an impending change of a voltage of the global supply bus. | 12-11-2014 |
| 20150303906 | HIGH-VOLTAGE INPUT RECEIVER USING LOW-VOLTAGE DEVICES - An input receiver for stepping down a high-voltage domain input signal into a low-voltage-domain stepped-down signal includes a waveform chopper. The waveform chopper chops the high-voltage domain input signal into a first chopped signal and a second chopped signal. A high-voltage-domain receiver combines the first chopped signal and the second chopped signal into a high-voltage-domain combined signal. A step-down device converts the high-voltage-domain combined signal into a stepped-down low-voltage-domain signal. | 10-22-2015 |
| 20150333744 | TRIMMING CIRCUIT AND METHOD APPLIED TO VOLTAGE GENERATOR - A trimming method for a voltage generator is provided. The voltage generator generates an output voltage according to a reference voltage. The trimming method includes the following steps. Firstly, in a step (a), an initial value of a trimming code is provided. Then, in a step (b), the reference voltage is generated to the voltage generator according to the trimming code, so that the output voltage is correspondingly generated by the voltage generator. Then, in a step (c), an average voltage of the output voltage is compared with a target voltage. If the average voltage does not reach the target voltage, the trimming code is gradually changed, and the step (b) is repeatedly done. If the average voltage reaches the target voltage, the trimming code is locked. | 11-19-2015 |
| 20150349761 | POWER MODULE - A power module includes: a base plane; at least one switch chip assembled on the base plane; and a voltage clamping circuit for clamping a voltage of the at least one switch chip and comprising components of a charging loop, wherein a projection of at least one of the components of the charging loop on the base plane is located within at least one first circle, defined with a center point of the at least one switch chip as a center of the first circle, and with a product of a maximum of a length and a width of the at least one switch chip and a first coefficient, as a radius of the first circle. | 12-03-2015 |
| 20160182025 | SEMICONDUCTOR DEVICE AND SEMICONDUCTOR SYSTEM INCLUDING THE SAME | 06-23-2016 |
