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8981734 Power source generation circuit and integrated circuit  
A power source generation circuit includes a regulator circuit which receives an external power source voltage VDDA from an external power source, and generates a predetermined internal power...
8878513 Regulator providing multiple output voltages with different voltage levels  
A regulator for providing a plurality of output voltages is provided. The regulator includes a basic unit and a plurality of replica units. The basic unit amplifies an input voltage to obtain a...
8669752 Controlling resistance for inline power powered device detection  
An apparatus and method are provided for controlling circuit resistance values used for detection of a device in an inline powered system. The system comprises a source device, either a current...
8587369 Down-converting voltage generating circuit  
A down-converting voltage generating circuit includes a reference voltage providing unit, an initial setting unit, a driving unit, and a driving force control unit. The reference voltage providing...
8519692 Voltage regulator  
An output voltage of a voltage regulator is set to within a prescribed voltage range in a short time. The voltage regulator comprises: an amplifier (AMP) that amplifies a difference between a...
8502509 Power conversion system and power control method for reducing cross regulation effect  
A power conversion system and power control method for reducing cross regulation effect uses a voltage feedback adjustment circuit to modulate an error signal fed back from an output voltage so as...
8484497 Power supply control within an integrated circuit  
An integrated circuit 2 is provided with a first power supply conductor 8 coupled via header transistors 14 to 26 to a second power supply conductor 10. Logic circuitry 4, 6 draws its power supply...
8436595 Capless regulator overshoot and undershoot regulation circuit  
Systems and methods for reducing voltage undershoot and overshoot of a voltage regulator are disclosed. In one embodiment of the present disclosure, an undershoot/overshoot regulation circuit...
8354832 Power supply noise injection  
A method for reducing noise in an output of a voltage regulator at frequencies above a closed loop bandwidth, by providing a noise injection path for injecting external noise into the voltage...
8339188 Floating gate reference for sleep/hibernate regulator  
A system includes power saving circuitry to revive a system controller from a sleep mode for performance of operations in an active mode. The system also includes a regulator including a floating...
8325129 Liquid crystal display and driving method thereof  
A liquid crystal display device includes a back light assembly that emits light on a liquid crystal panel; and an inverter that controls brightness of the light emitted from the back light...
8258771 Circuit device, electronic apparatus, and power supply method  
A circuit device includes: a power supply circuit; and a logic circuit, the power supply circuit supplying a first power supply voltage and a second power supply voltage to the logic circuit, the...
8258767 Power conversion system and power control method for reducing cross regulation effect  
A power conversion system and power control method for reducing cross regulation effect uses a voltage feedback adjustment circuit to modulate an error signal fed back from an output voltage so as...
8247992 LED driver circuit  
A light-emitting diode (LED) driver circuit is provided, which includes a transistor, a current regulator, a release diode, and a voltage clamping device. The transistor is coupled in series with...
8212648 Variable attenuator  
A variable attenuator, including at least a one-stage attenuator circuit, including at least a signal input end, a signal output end, a common grounded end, a first serial resistor, a first...
7952309 Rotating electrical machine control device  
A rotating electrical machine control device includes an inverter; a resolver; a unit; a three-phase/two-phase modulation switching unit; and a motor control unit that switches to a two-phase...
7863876 Built-in self-calibration (BISC) technique for regulation circuits used in non-volatile memory  
A reference voltage regulation circuit (143) is provided in which one or more input voltage signals (Vref, Vref′) are selectively coupled to a configurable amplifier (114) which is coupled through...
7830151 Electronic voltage supply method and apparatus  
A method and apparatus for supplying a voltage in an information handling system. A modulated voltage signal output circuit linked to an amplitude control element. The amplitude control element...
7821246 Voltage regulator and method of calibrating the same  
A voltage regulator is provided that includes a power cell to provide a calibrated output voltage based on a voltage identification (VID) offset, and a master controller to provide a VID code to...
7816902 Integrated circuit including a controller for regulating a power supply  
An integrated circuit includes a controller configured to regulate an output of a power supply based on a first signal. The integrated circuit includes an input configured to receive the first...
7781920 Push-on/push-off power-switching circuit  
An electrical power-switching circuit controls power to an electronic device. In some embodiments, the circuit consists of only transistors, resistors, and capacitors, making it small, low cost,...
7733068 DC-DC converter  
A DC-DC converter includes a switching transistor connected to an inductor and a power input terminal, with the inductor connected to an output terminal, a synchronous rectification transistor...
7663330 Electric power steering device, and control method thereof  
An actual detected current value and a target voltage value of an electric motor are subjected to a low-pass filter process, and amounts of change per time in the filtered actual current value and...
7541787 Transistor drive circuit, constant voltage circuit, and method thereof using a plurality of error amplifying circuits to effectively drive a power transistor  
A transistor drive circuit, a constant voltage circuit, and a method thereof provided with a reference voltage generator, a power voltage detector, and a plurality of error amplifying circuits....
7538453 Fan power supply system  
A fan power supply system having a pair of voltage supplies, one producing a higher voltage than the other. A switch selects one of the voltage supplies in response to a control signal. A DC/DC...
7531995 Electronic device  
An electronic device includes: a DC power source which supplies a first DC supply voltage; a DC voltage converter which is enabled or disabled in response to a first control signal, and which...
7391200 P-channel power chip  
An integrated circuit device for delivering power to a load includes a P-MOS power transistor, an N-MOS bypass transistor and a gate driver circuit. The P-MOS power transistor is coupled between a...
7388356 System and method for providing voltage regulation in a multi-voltage power system  
A voltage regulator system is disclosed for use in selectively regulating a voltage source at a first output voltage potential and a second output voltage potential. The voltage regulator system...
7378829 Method and system for providing voltage  
A system and method to provide voltage to a device from the operating mode of an integrated circuit is disclosed. In a particular embodiment, the disclosed system includes an integrated circuit...
7245465 Voltage regulator  
A voltage regulator has an output circuit for producing from an input voltage a predetermined output voltage to be supplied to a load, an overcurrent protection circuit for preventing overcurrent...
7071672 Method and circuit arrangement for generating an output voltage  
An output voltage is generated, in that an initializable current source is transferred into a current-conducting state by an initializing signal produced by an initializing unit, and then provides...
7068000 Torque control device for electrical tools  
A torque control device for an electrical tool has a switching circuit, a voltage detecting circuit, a torque detecting circuit and a processor. The switching circuit connects between a motor of...
7023717 Switching power supply apparatus  
The present invention relates to an isolated-type switching power supply apparatus, which includes a power supply, a transformer being connected to said power supply, a switching element for...
6972975 Voltage converter with selectable output voltage levels  
A voltage converter includes a converter circuit, a casing, and a jumper member. The converter circuit includes a voltage level setting circuit configured for generating a feedback signal, wherein...
6900621 Digitally controlled modular power supply for automated test equipment  
A digitally controlled hybrid power module is controlled by a programmable controller. The hybrid power module includes a digitally controlled switching supply with an output coupled to an input...
6724196 Temperature controlled high voltage regulator  
A temperature controlled high voltage regulator for automatically adjusting the high voltage applied to a radiation detector is described. The regulator is a solid state device that is independent...
6548996 Optimized on/off control circuit  
An on/off control circuit is provided that controls the application of power to a device. The effectiveness of the on/off control circuit is optimized with regard to cost, power consumption,...
6414855 Power converter with power converter element and controller formed on different semiconductor substrates  
A power converter individually comprises a first semiconductor device <2> and a second semiconductor device <3>. In the first semiconductor device <2>, a power conversion element such as an IGBT...
6366072 Optimized power supply system for an electronic circuit  
Electronic evaluation device provided within an electronic circuit so as to deliver an indication of the operating conditions of the electronic circuit, which indication is used to adjust the...
6218823 Differential voltage regulator  
A voltage regulator (10) that regulates an input voltage. The voltage regulator (10) includes a current source (20) that generates a reference current. The voltage regulator also includes a...
6215289 Switchable D.C. voltage regulation circuit  
The present invention relates to a switchable d.c. voltage regulation circuit having an input terminal, an output terminal, a reference terminal, and a control terminal, including a gate turn-off...
6208127 Methods and apparatus to predictably change the output voltage of regulators  
Programmable voltage regulators that change from a first set-point voltage to a second set-point voltage at a controlled rate. The set-point signal is a multi-bit set-point signal with the rate of...
6184663 Apparatus for driving electric load  
An apparatus for driving an electric load includes a switch device interposed in a current feed path from a direct-current power source to the electric load. A sensing resistor connected in series...
6177785 Programmable voltage regulator circuit with low power consumption feature  
A voltage regulator according to the present invention includes a programmable reference generator, a programmable output adjustor, an error amplifier, and an output driver. The programmable...
6018236 Differential voltage regulator  
A voltage regulator (10) that regulates an input voltage. The voltage regulator (10) includes a current source (20) that generates a reference current. The voltage regulator also includes a...
5907238 Power source monitoring arrangement and method having low power consumption  
An electronic circuit and system (1) incorporating a battery system (30), power-discharge sensing circuitry (40) and sleep circuitry (10) all in electrical communication with each other. The sleep...
5838150 Differential voltage regulator  
A voltage regulator (10) that regulates an input voltage. The voltage regulator (10) includes a current source (20) that generates a reference current. The voltage regulator also includes a...
5828209 Voltage reference arrangement, a voltameter, a battery voltage detection arrangement, and a wireless communication device  
A voltage reference arrangement is known for deriving a number of voltages from an input reference voltage. The known arrangement utilizes a rigid resistive voltage divider. A flexible voltage...
5747979 Multiple value voltage output circuit and liquid crystal display driving circuit  
A multiple value voltage output circuit in which the number of transistors configuring a high breakdown voltage circuit portion can be reduced so that the area for forming the circuit is reduced....
5698972 Voltage regulator circuit  
A power regulation circuit features an improved regulation circuit for use with a voltage multiplier circuit, such as a Vccp pump for a DRAM. The power regulation circuit includes: a high-gain...

Matches 1 - 50 out of 154 1 2 3 4 >