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8963533 High-voltage voltage divider and connector comprising said divider  
The present invention relates to a resistive voltage divider comprising a plurality n of resistive elements in a configuration wherein the angles m=n−1 between each pair of elements are between...
8742300 Inverter system  
An inverter system includes inverting circuitry for inverting an input DC signal into a square wave or quasi-square wave AC signal across a resistance, and a controller for causing the inverting...
8729955 Adaptive thermal compensation circuit and method  
For thermal compensation for an intrinsic element in a system, a circuit and method are proposed to predict the temperature variation caused by power loss of the intrinsic element, in addition to...
8643353 Driving voltage adjusting circuit capable of adjusting driving voltage via digital rheostat  
A driving voltage adjusting circuit includes a digital rheostat, a control chip, a low dropout regulating circuit, and a driving circuit. The control chip is connected with the digital rheostat,...
8514089 Temperature monitoring circuit  
A temperature monitoring circuit includes a negative temperature coefficient (NTC) resistor, a zener diode, an alarm, a silicon controlled rectifier. A first terminal of the NTC resistor is...
8350552 Voltage reference and temperature sensor  
A highly accurate voltage reference and temperature sensor circuit requires only several low-cost components in addition to a general-purpose microcontroller with an analog-to-digital converter....
7956595 Adaptive constant-voltage control circuit and adaptive power converter controller  
An adaptive power converter controller coupled to a load and a power converter circuit is provided. The adaptive power converter controller has an adaptive voltage sensing unit and a converting...
7928345 Aircraft windshield defogging/deicing system and method of use thereof  
In an aircraft windshield defogging/deicing system, a pair of transparent sheets maintained in spaced facing relation by a transparent interlayer have a resistive coating positioned between the...
7830129 Control circuit, voltage regulator and related control method  
A control circuit, applicable to a voltage regulator including a power switch. The control circuit includes a variable resistance generating unit and a detecting circuit. The variable resistance...
7786375 Preventing harmful polarization of solar cells  
In one embodiment, harmful solar cell polarization is prevented or minimized by providing a conductive path that bleeds charge from a front side of a solar cell to the bulk of a wafer. The...
7679305 Method and device for temperature limitation according to current and/or voltage  
The invention relates to a method for temperature limitation according to the current and/or voltage, for an actuating device (10) associated with an electric motor (M), especially a fan regulator...
7619402 Low dropout voltage regulator with programmable on-chip output voltage for mixed signal embedded applications  
A programmable voltage generator has software-programmable registers that may be decoded to generate control bits that turn on select transistors that control a variable resistor network. An...
7619502 Potentiometer system and method  
A potentiometer network includes a first main terminal, a second main terminal, a plurality of resistive elements connected in parallel between the first main terminal and the second main...
7495427 AC electrical power dividing circuit  
An AC electrical power dividing circuit includes a hot line, a neutral line, a ground line, two output ports, a first voltage-dividing module, a second voltage-dividing module, a first sampling...
7486288 Display device driving apparatus and display device using the same  
In a drive unit for use with a matrix type display, a buffer circuit of the power supply circuit of the drive unit has an high-voltage first output circuit and a low-voltage second output circuit...
7292019 Method for accurately setting parameters inside integrated circuits using inaccurate external components  
The control precision of one or more parameters of an integrated circuit (IC), for example the output voltage of a voltage regulator comprised in the IC, may be improved even when using inaccurate...
7208919 Method and apparatus for digitally regulating an output voltage using noise-shaped component selection  
Provided is a digitally-controlled linear regulator having noise-shaped component selection. The digitally-controlled linear regulator has a regulated-voltage sensor, a comparator module, a...
6882136 Variable impedance network for an integrated circuit potentiometer  
An impedance network, which includes at least one end terminal, a wiper terminal, a center impedance element, and a first plurality of impedance elements. The wiper terminal provides a tap...
6822345 Chip/package resonance damping using controlled package series resistance  
A method and apparatus for reducing an impedance of a power supply path of an integrated circuit is provided. The power supply path includes a first power supply line and a second power supply...
6693394 Brightness compensation for LED lighting based on ambient temperature  
A circuit regulates the flow of current to a bank of light emitting diodes (LEDs). The circuit is sensitive to ambient temperature and increases the voltage at the LEDs in the circuit....
6555996 High-resolution, high-precision solid-state potentiometer  
Disclosed are solid-state potentiometers having high resolution and high accuracy. An exemplary potentiometer comprises a first main terminal, a second main terminal, a wiper terminal, and a...
6476591 Power supply device for driving liquid crystal, liquid crystal device and electronic equipment using the same  
A power supply device for driving liquid crystal which generates four liquid crystal drive voltages V1 and V4 between first and second reference voltages, the power supply device comprising: a...
6373236 Temperature compensated power detector  
A temperature compensated power detector generally comprises a detector circuit portion, which includes a detector diode, and a temperature compensation circuit portion, which includes a...
6368734 NTC thermistors and NTC thermistor chips  
An NTC thermistor has an electrically insulating substrate, a temperature-sensitive film on a surface of the substrate containing oxide of rare earth elements such as LaCoO3 as its principal...
6362606 Method and apparatus for regulating a voltage  
An RF power amplifier is provided for use with wireless transmission systems such as cellular phones. An RF power amplifier includes direct drive amplifier circuitry operating in a push-pull...
6359428 Semiconductor integrated circuit device having an output voltage setting function  
A voltage output device outputs an analog voltage obtained by dividing a supply voltage with a plurality of resistor elements. The resistor elements are individually connected in parallel with...
6194888 Impedance-to-voltage converter and converting method  
An impedance-to-voltage converter utilizes an operational amplifier to convert an impedance into a voltage without suffering from the influence of stray capacitances. The impedance-to-voltage...
6113760 Power supply apparatus for sputtering and a sputtering apparatus using the power supply apparatus  
The present invention provides a sputtering power supply apparatus which realizes stable sputtering at a pressure lower than the discharge start pressure, so that scattering of sputtering...
6087823 Electronic inductance circuit  
There is provided an electronic inductance circuit having a transistor, a first resistor, a second resistor, a capacitor and a first current source. The main current path of the transistor and the...
6046581 Microprocessor load emulator  
A load emulator provides a high current load having a specified high slew rate to replicate the load and transient currents generated by advanced high speed microprocessors. The load emulator is...
5814981 Voltage circuit for generating multiple stable voltages  
In a multi-valued voltage generating circuit including a voltage divider connected between first and second nodes and formed by a series of resistors, and an output circuit, connected to the first...
5783872 Auxiliary battery voltage/temperature compensation for automotive 12 volt system for electric vehicles  
A battery temperature compensation circuit for a DC/DC converter which is used to charge an auxiliary battery for an electric vehicle and including, among other things, a voltage sensitive...
5611952 Temperature sensor probe and sensor detection circuit  
A sensor probe and sensor detection circuit used in an electronic temperature control circuit for preventing the control circuit from driving an external device such as a heater when the sensor...
5587649 Thermal performance matched current limiting circuit, and battery using same  
A battery pack (10) includes a circuit (14) for assuring that a device (16) connected to the battery pack performs in a manner consistent with design requirements, while not exceeding certain...
5565768 Apparatus for detecting metallic debris in dielectric fluid having an indirectly heated thermistor for balancing a bridge network  
In an inductive debris monitor (IDM) an inductive probe is disposed at a fluid flow passageway to be monitored, and an RF bridge containing a variable resistance network is used to detect changes...
5543705 Voltage regulating circuit and PTC element for automotive vehicles  
A voltage regulating circuit for automotive vehicles includes: a supply voltage; a load; and a Positive Temperature Coefficient ("PTC") resistance element connected in series between the supply...
5506494 Resistor circuit with reduced temperature coefficient of resistance  
A resistor circuit includes a pair of linear conductive films and a resistive film. The resistive film is formed on an area between the conductive films and electrically connected to the...
5464964 Image heating apparatus changing set temperature in accordance with temperature of heater  
An image heating apparatus includes a heater; temperature detector for detecting a temperature of the heater; electric power supply controller for controlling electric power supply to the heater...
5389872 Signal processing system and method of reducing switch error attributable to switch impedances  
A system and method minimizing switching errors in voltages delivered to a resistive load. Switch impedances can be significant when small resistor values are utilized. A system relies on varying...
5373141 Fusing temperature control circuit  
A circuit for controlling the temperature of a system by sensing a temperature is disclosed. The circuit includes a heater heated by a given control signal, a thermistor installed around the...
5291123 Precision reference current generator  
An integrated current generator circuit operates in conjunction with a known reference voltage and internal and external reference resistances. The current generator circuit includes three...
5278394 Fixing temperature controller for controlling a heater relative to two preset temperature levels  
A fixing temperature controller comprising a heater for heating a fixing roller, a measuring circuit for detecting the fixing temperature of the fixing roller to produce detected temperature data,...
5254975 Compensation type heat sensor  
A pair of temperature detection devices having different heat time constants and an active device having a predetermined bias are connected in series. The bias is set so as to cause the active...
5198745 Dynamic braking resistor system  
A dynamic braking system resistor for stabilizing a power system during power system disturbances includes a braking resistor for coupling with a power system bus. A controller monitors a power...
5175412 Electrical control system for an electrically heated window in motor vehicle  
An electrical control system for an electrically heated window in a motor vehicle has a voltage source including a generator, a voltage regulator for regulating a generator output voltage, a...
5157323 Switched low-loss attenuator  
A double-π network includes a pair of series resistors connected between input and output terminals. A plurality of FETs of different widths and/or in series with resistors, are each connected in...
4755793 Input ranging divider and method for an analog to digital converter  
An improved input ranging divider and method for an analog to digital converter in which a floating common input line to the A to D comparator is coupled through an R/2R resistive input ladder. A...
4736090 Electric heating circuit  
A temperature sensitive control circuit for an electrically heated rotatable drum (11) including an internally disposed electric heater (27) and an electric temperature sensor (28) and, outside of...
4673866 Constant voltage generator using memory transistors  
A constant voltage generator includes a resistance adjustable resistor having a series connection of a main resistor and sub-resistors, a circuit cooperating with the series connection to produce...
4668903 Apparatus and method for a temperature compensated reference voltage supply  
A voltage reference supply circuit is described that provides temperature compensation over a wide range of temperatures. The circuit includes a plurality of thermistor temperature dependent...

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