Matches 1 - 40 out of 40


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US20140097815 Powering Down Switching Regulator using a Ramped Reference Voltage  
Circuits and related methods for energy efficient battery supplied switching DC-to-DC regulators are disclosed. When entering a power-down state the energy in an output capacitor is harvested and...
US20110156689 POWER CONVERTER HAVING A SWITCH COUPLED BETWEEN WINDINGS  
An example power converter includes a first winding, a second winding, a switch, and a controller. The second winding is magnetically coupled to the first winding and the switch is coupled between...
US20110140679 Switching Capacitor-PWM Power Converter  
A power converter topology operates as a switching capacitor (capacitive voltage divider) converter during a first, preferably short portion of a switching cycle to provide excellent dynamic...
US20110309771 PROPORTIONAL REMOTE CONTROL  
Disclosed is a proportional controller that utilizes a deflected metal cantilever that provides a progressive change in capacitance for a given deflection that is used to generate a proportional...
US20120249107 COUPLED INDUCTOR TO FACILITATE INTEGRATED POWER DELIVERY  
An embodiment of the present invention provides an apparatus, comprising a surface mounted device (SMD) inductor, the SMD inductor including at least two counter wound aircoils formed on a same...
US20150022176 Power Converter with inductance invariance  
An improved power converter is disclosed.
US20120139519 LOSSLESS INDUCTOR CURRENT SENSING IN A SWITCH-MODE POWER SUPPLY  
A lossless inductor current sense technique integrates a matched, tunable complimentary filter with a switch mode power supply (SMPS) controller for accurately measuring current through the power...
US20150115926 POWER SUPPLY DEVICE  
There is provided a power supply device including: a SEPIC/Zeta converter having an energy storage unit; and a power transmitting unit transmitting the energy stored in the SEPIC/Zeta converter to...
US20150061632 SYSTEM AND METHOD OF EQUIVALENT SERIES INDUCTANCE CANCELLATION  
An equivalent series inductance (ESL) cancel circuit for a regulator for adjusting a feedback voltage by attenuating a magnitude of a square wave ripple voltage developed on an output voltage. The...
US20140022149 DC-DC CONVERTER AND ORGANIC LIGHT EMITTING DISPLAY INCLUDING THE SAME  
There are disclosed a DC-DC converter and an organic light emitting display including the same. The DC-DC converter includes a first voltage generator that has an inductor and a plurality of...
US20110095743 POWER SUPPLY CIRCUIT  
A power supply circuit arranged in a circuit board to supply a determined voltage to an element is disclosed. The power supply circuit includes a single-phase pulse width modulation (PWM) signal...
US20090021233 PWM CONTROLLER WITH OUTPUT CURRENT LIMITATION  
A PWM controller with output current limitation makes the over-current limitations almost the same even though the input voltages are different. The designer does not need to use high...
US20130320949 ELECTRONIC DEVICE FOR AVERAGE CURRENT MODE DC-DC CONVERSION  
An average current mode buck-boost DC to DC converter has a buck stage coupled between an input voltage source terminal and an output terminal. A boost stage is coupled between the input voltage...
US20140320104 ADVANCED CONTROL CIRCUIT FOR SWITCHED-MODE DC-DC CONVERTER  
A circuit for controlling a switched-mode DC-DC converter. An inductor is connected between a switching node and an output node, and an output capacitor is connected in series with the inductor....
US20090189587 High accuracy average output current control scheme for power current converter in critical DCM  
High accuracy average output current control scheme for power current converter in critical DCM is composed of the reference block to generate preset reference; the reference calculation block,...
US20130093407 DC-DC CONVERTER  
Disclosed is a DC-DC converter, including: a switch unit configured to generate output voltage for driving a load; an output voltage monitoring unit including a reference voltage generator...
US20080061759 Power supply topologies with pwm frequency control  
A power supply topology with pulse width modulation frequency control allows the use of an inductor with higher inductance in a converter. By controlling the switching frequency of the pulse width...
US20100123447 OVER POWER COMPENSATION IN SWITCHED MODE POWER SUPPLIES  
An over-power compensation circuit for use in a switched mode power supply having a current sense circuit for sensing a current flowing through a power transistor of the switched mode power...
US20120105042 SWITCHING APPARATUS  
A switching apparatus is disclosed that includes a first loop circuit configured to include a switching element, an inductive component and a capacitor; and a second loop circuit configured to...
US20090289612 SWITCHING POWER SUPPLY AND PORTABLE DEVICE  
A switching power supply includes a switching element connected to a power supply voltage and performs ON and OFF operation; a control circuit; a coil; a capacitor connected to the coil and...
US20070296389 SWITCHING REGULATORS  
A switching regulator. A pulse width modulation (PWM) unit comprises an output stage and generates a PWM driving signal to control the output stage, such that an inductor delivers an inductor...
US20100148743 ACTIVE FILTERING DEVICE FOR A POWER SUPPLY  
The invention relates to an active filter device for a power supply comprising a source having a source of current iS and a voltage VE, a power converter presenting an input inductor L, a power...
US20090146633 STEP-UP SWITCHING REGULATOR AND ITS CONTROL CIRCUIT AND ELECTRONIC APPARATUS EMPLOYING IT  
A switching transistor has a source connected to the ground and a drain connected to the first terminal. The other end of an inductor whose one end is to be connected to the first terminal is...
US20090146634 Single integrator sensorless current mode control for a switching power converter  
A single integrator sensorless current mode control scheme for a switching power converter requires an amplifier circuit which produces an first current that varies with the difference Verror...
US20100045714 CAPACITIVE LOAD DRIVING CIRCUIT AND LIQUID DROPLET JETTING APPARATUS  
A capacitive load driving circuit including: a filter including an inductor to which an analog driving signal is input, and a capacitor with a fixed capacitance where one electrode is connected...
US20070296390 METHOD AND APPARATUS FOR REGULATING VOLTAGE  
An AC voltage regulator able to provide a desired voltage to any type of a given load within a predetermined range without any output power interruptions during any transition time, without...
US20100097045 Single inductor multiple output power supply  
Single inductor based switching regulators are disclosed herein. In one embodiment, a switching regulator can include: (i) output switches coupled to a common inductor node and to a corresponding...
US20100127685 POWER SOURCE APPARATUS  
A power source apparatus has a power source unit (AC, DB, Ci), a pair of reactors L1a and L1b each having a winding, and a controller 10 to accumulate energy of the power source unit in the pair...
US20140184188 POWER CONVERSION DEVICE  
In some aspects of the invention, a power conversion device includes a semiconductor switch series circuit configured by connecting semiconductor switches in series, a capacitor series circuit...
US20150108961 FREQUENCY DEPENDENT ANALOG BOOST CONVERTER FOR LOW VOLTAGE APPLICATIONS  
An analog open-loop self-oscillating boost converter is provided including: an output terminal for supplying an output voltage bus; an input terminal for receiving variable input power; a varactor...
US20130272742 DC/DC CONVERTER AND IMAGE FORMING APPARATUS INCLUDING THE SAME  
A converter includes a switching unit configured to switch a voltage to be input, an inductor connected to the switching unit, a conversion unit configured to convert the voltage switched by the...
US20100213915 SEMICONDUCTOR SWITCHING DEVICE  
A semiconductor switching device includes a power control part, which includes a voltage dropping chopper circuit having a first switching element and a first diode, a voltage boosting chopper...
US20090146635 SYSTEM AND METHOD FOR IMPROVING INDUCTOR CURRENT SENSING ACCURACY OF A DC/DC VOLTAGE REGULATOR  
The DC/DC voltage converter comprises at least one switching transistor. An inductor is connected to the at least one switching transistor. A pulse width modulation circuit generates control...
US20090128116 SWITCHING REGULATOR  
A switching regulator includes a switching element that switches between on and off according to a control signal, an inductor that is charged with the input voltage by switching of the switching...
US20150188422 DC-DC CONVERTER AND SEMICONDUCTOR INTEGRATED CIRCUIT  
The DC-DC converter includes a reference voltage generating circuit that generates a reference voltage. The DC-DC converter includes a modulation clock signal generating circuit that generates a...
US20100225293 ADAPTIVE CONTROL FOR TRANSITION BETWEEN MULTIPLE MODULATION MODES IN A SWITCHING POWER CONVERTER  
In a switching power converter, PWM mode and PFM mode are separated into two independent control sections with the control voltage range in each control section determined independently. Each of...
US20170011830 MAGNETIC ASSEMBLY AND POWER SUPPY SYSTEM WITH SAME  
A magnetic assembly includes plural first magnetic cores, plural coil windings and a second magnetic core. Each of the plural first magnetic cores includes plural legs and a first connection part....
US20160204698 DC POWER SOURCE, AND DC POWER SOURCE CONTROL METHOD  
A DC power source to supply DC power to a plasma generator is configured as a simple and small-sized device that forms high voltage for generating a plasma discharge. A step of passing a...
US20160204690 BACKFLOW PREVENTING DEVICE, POWER CONVERSION APPARATUS, MOTOR DRIVER, AND REFRIGERATING AND AIR-CONDITIONING APPARATUS  
A backflow preventing device includes a backflow preventing element that is connected between a power supply and a load and that prevents electric current from flowing backward from the load side...
US20160105106 CONTROLLER AND POWER CONVERTER USING THE SAME  
The object of the present invention is to provide a controller, and a power converter using the same, which can expand the range of a voltage applied to a load. The present invention provides a...

Matches 1 - 40 out of 40