Match Document Document Title
9240737 Control device for switching power supply circuit, and heat pump unit  
A mode controller shifts, along with increase in an electric power in first and second of chopper circuits and, operation modes of the first and the second of the chopper circuits from a first...
9158323 Power control circuit and power supply system employing the same  
A power control circuit for a power supply system including a control unit, a driving circuit and a power supply unit is disclosed. The power control circuit includes a current detection unit, a...
9134743 Low-dropout voltage regulator  
A low-dropout voltage regulator includes a power transistor configured to receive an input voltage and to provide a regulated output voltage at an output voltage node. The power transistor...
9065338 Multi-phase DC-DC converter supplying power to load with plural power stages and information processing device including the same  
There is provided a DC-DC converter which converts an input voltage into an output voltage for supply to a load, in which an input terminal receives the input voltage, an output terminal outputs...
9048730 Switched mode power supply and a method for operating a switched mode power supply  
A switched mode power supply provides a reduction of switching losses and increased efficiency. The switched mode power supply includes a first switch coupled to an input terminal configured to...
9042129 System and method for controlling power in a distribution system  
An integrated power quality control system includes a transformer with a primary winding, a secondary winding and a compensation winding wound on a magnetic core. A power electronic converter in...
9041365 Multiple mode RF power converter  
This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out...
9041382 Power-supply circuit for DC appliance  
A power-supply circuit for a DC appliance includes an input unit including a first terminal and a second terminal so as to receive a DC current, an output unit including a third terminal to output...
9041380 Reference voltage circuit and image-capture circuit  
A reference voltage circuit for generating a reference voltage to be referred when a pixel signal is digitally converted, includes ramp voltage generating means for generating a ramp voltage which...
9041366 Delay compensation circuit  
A device (200) includes a circuit (202) and a driver stage (204) therefor. The circuit includes two sub-circuits (231 and 232). The driver stage includes switcher logic (206) that produces signals...
9041373 Constant on-time switching converters with sleep mode and control methods thereof  
A constant on-time switching converter includes a switching circuit, an on-time control circuit, a comparing circuit and a logic circuit. The switching circuit has a first switch and is configured...
9041370 Charge pump regulator circuit with a variable drive voltage ring oscillator  
A charge pump regulator circuit includes a voltage controlled oscillator and a plurality of charge pumps. The voltage controlled oscillator has a plurality of inverter stages connected in series...
9041457 Electronic apparatus having a diode connected to a control terminal of a switching element  
An electronic apparatus includes a switching element which has a control terminal and is driven by controlling voltage of the control terminal, a driving power supply circuit which supplies...
9041377 Pseudo constant on time control circuit and step-down regulator  
A step-down regulator comprising a pseudo constant on time control circuit is disclosed, comprising an on-time generator configured to receive a switching signal provided by the step-down...
9042140 Bridge-less step-up switching power supply device  
A bridge-less step-up switching power supply device includes (i) a first and a second reactor having: a first and a second main winding connected to a first and a second input terminal,...
9041369 Method and apparatus for optimizing linear regulator transient performance  
A voltage regulator compensation circuit provides power to a dynamic load and includes a power transistor configured to drive the dynamic load, a reference determining transistor configured to...
9041362 System for eliminating current surges in electronic systems and equipment having intermittent current consumption  
The invention relates to a system for eliminating current surges that includes a first voltage regulator (7) having a current limit programmable to a value (I(limit)) that depends on the value of...
9041383 Method and device for linearizing a transformer  
A method for linearizing voltage transmission through a transformer including a magnetic core and, input and output windings. A measurement signal is supplied to the input winding at a first...
9041376 Synchronous DC-DC converter having soft-stop function  
A synchronous DC-DC converter having a soft-stop function includes an output stage for supplying an output voltage, wherein the output stage includes a high-side transistor for charging the output...
9041378 Dynamic maneuvering configuration for multiple control modes in a unified servo system  
Systems and methods that provide control circuits having multiple sub-control inputs that control operation of a power electronics device (e.g., a power converter). Each of the multiple...
9041433 System and method for driving transistors  
In accordance with an embodiment, a circuit includes a first transistor, a second transistor having a reference node coupled to an output node of the first transistor, and a control circuit. The...
9041374 Power converting circuit and control circuit thereof  
A power converting circuit includes an upper gate switch, a transistor, a current source circuit, a comparator circuit, a delay circuit, and a pulse width modulation signal generating circuit. The...
9041375 High resolution control for a multimode SMPS converter and high resolution slope generator  
In various embodiments a controller for controlling the operation of a switched mode power supply is provided, the controller comprising: a first signal source configured to provide a first set of...
9041313 Low dropout light emitting diode (LED) ballast circuit and method therefor  
A ballast circuit for a Light Emitting Diode (LED) has a regulator element coupled to the LED and to an input voltage source. A control circuit is coupled to the LED and to an input voltage...
9042141 Control of energy storage system inverter system in a microgrid application  
A system that manages a supplemental energy source connected to a power grid uses a two stage control strategy to manage power transfers in and out of the power grid as well as in and out of an...
9041504 Polyphase converter with magnetically coupled phases  
Polyphase converter, comprising a plurality of electrical phases (11 to 16), which can each be driven by switching means (21 to 26), wherein at least one coupling means (31 to 39) is provided,...
9041371 Switching regulator  
A disclosed switching regulator includes a speed-up circuit for speeding up an operation of an error amplifier circuit during the time starting from when a switching element is turned OFF based on...
9041367 Voltage regulator with current limiter  
A voltage regulator includes an amplifier having a first input coupled to a first reference voltage and a second input coupled to a voltage feedback signal; a multiplexer having a first input...
9041364 RF power converter  
This disclosure relates to radio frequency (RF) power converters and methods of operating the same. In one embodiment, an RF power converter includes an RF switching converter, a low-drop out...
9041379 Bootstrap startup and assist circuit  
A bootstrap assist circuit and a startup circuit comprising a voltage controlled switch and a startup ramp voltage generator connected to the voltage controlled switch that will control a high...
9041363 Windowless H-bridge buck-boost switching converter  
A “windowless” H-bridge buck-boost switching converter includes a regulation circuit with an error amplifier which produces a ‘comp’ signal, a comparison circuit which compares ‘comp’ with a...
9041381 Current mirror circuits in different integrated circuits sharing the same current source  
A current mirror circuit, receiving an input current and outputting a plurality of mirroring currents, comprising: a first transistor, wherein a control terminal and a first terminal of the first...
9041372 Wide output voltage range switching power converter  
A switching power converter includes a voltage source that provides an input voltage Vin to an unregulated DC/DC converter stage and at least one buck-boost converter stage to produce a desired...
9041368 Power supply device  
A power supply device includes a first converter which converts an input voltage to a first voltage, a second converter which converts the first voltage from the first converter to a second...
9041011 Modular power converter having reduced switching loss  
In one implementation, a modular power converter having a reduced switching loss includes a package, a field-effect transistor (FET) including a gate terminal, a drain terminal, and a source...
9035641 Startup circuit  
A startup circuit to ensure a bandgap reference circuit reliably starts up or recovers from a noise disturbance is provided. The startup circuit incorporates a pull down resistor to detect the...
9036383 Power supply device control circuit  
In some aspects of the invention, overcurrent protection is carried out by suppressing fluctuations in current flowing through a switching element after overcurrent detection. A peak current...
9036386 Interleaved two-stage power factor correction system  
Methods and systems are described for providing power factor correction for high-power loads using two interleaved power factor correction stages. Each power factor correction stage includes a...
9035633 Switching power converter control  
A method of operating a switching power converter may include determining an average value of a measured parameter for substantially each switching cycle, and adjusting a control parameter during...
9035636 Digital peak detector with follower mode  
Circuits and processes for detecting a peak value of an input signal are disclosed. In one example, a peak detector circuit may sample a line sense signal, determine the peak value of the line...
9036377 Control circuit of a switched-mode power converter and method thereof  
A method for controlling voltage crossing a power switch of a switched-mode power converter includes the steps of: controlling a switch frequency of the power switch of the switched-mode power...
9037884 System and method for multi-phase voltage regulation  
In accordance with one embodiment of the present disclosure, a multi-phase voltage regulator may comprise a plurality of phases, each phase configured to supply electrical current to one or more...
9035638 DC/DC converter arrangement and method for DC/DC conversion  
A DC/DC converter arrangement includes an input terminal to receive a supply voltage, an output terminal to provide an output voltage and a switching arrangement, including a coil and at least two...
9035628 Multi-channel power supply and current balancing control method thereof  
The multi-channel power supply comprises a first channel, a second channel, a current sensing module, a current average control circuit, and a modulator. The first channel and the second channel...
9035632 DC-DC converter, control circuit, and power supply control method  
A DC-DC converter includes a first amplifier that amplifies a first difference between a first reference voltage and a feedback voltage corresponding to an output voltage, a second amplifier that...
9035627 Switched mode power supply employing first and second feedback signals and a method of operating thereof  
A switched mode power supply includes a first switch, a second switch, an inductor, an output capacitor, and a driving circuit for driving the first switch and the second switch. The driving...
9035583 System for controlling the speed of an electric fan  
The system has a driving circuit for the motor of the electric fan, coupled to the electrical system of a motor vehicle and having a plurality of controlled electronic switches, and an electronic...
9035625 Common cascode routing bus for high-efficiency DC-to-DC conversion  
Embodiments for at least one method and apparatus of generating a regulated voltage are disclosed. One method includes generating the regulated voltage through controlled closing and opening of a...
9035629 Voltage regulator with different inverting gain stages  
A voltage regulator includes a regulating transistor and a control circuit. The regulating transistor has a first current electrode for providing a regulated voltage, a second current electrode,...
9035626 Switching circuits for extracting power from an electric power source and associated methods  
A switching circuit for extracting power from an electric power source includes (1) an input port for electrically coupling to the electric power source, (2) an output port for electrically...