Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
02/2004
02/11/2004CN1137798C Power converter with low loss switching
02/10/2004US6691048 Power-source system, power supplying method and image capturing apparatus
02/10/2004US6690613 High voltage generating circuit and method
02/10/2004US6690591 Single stage converter in LCD backlight inverter
02/10/2004US6690589 Interleaved converter power factor correction method and apparatus
02/10/2004US6690586 Switching power source device
02/10/2004US6690585 Bi-directional DC power conversion system
02/10/2004US6690227 Charge pump circuit for use in high voltage generating circuit
02/10/2004US6690150 Method and a system for producing a power supply voltage for controlling an electronic switch
02/10/2004US6690148 Method and circuit for limiting a pumped voltage
02/10/2004US6690142 DC—DC converter
02/05/2004WO2003107505A3 Charger for rechargeable batteries
02/05/2004WO2003105327A3 Dc-dc-converter
02/05/2004WO2003085797A3 Device for the inductive transmission of electric power
02/05/2004US20040022114 Semiconductor memory device allowing reduction of an area loss
02/05/2004US20040022080 Switching transformer
02/05/2004US20040022077 Ripple cancellation circuit for ultra-low-noise power supplies
02/05/2004US20040022076 Synchronous rectifier circuit
02/05/2004US20040022075 Full-wave coupled inductor power converter
02/05/2004US20040022074 Overcurrent output protecting circuit and constant-voltage switching power supply incorporating the same
02/05/2004US20040021992 Constant-voltage switching power supply provided with overvoltage output protecting circuit, and electronic apparatus provided with overvoltage protecting circuit
02/05/2004US20040021518 Error amplifier circuit
02/05/2004US20040021504 Boosting circuit configured with plurality of boosting circuit units in series
02/05/2004US20040021456 Apparatus for metering at least one type of electrical power over a predetermined range of service voltages
02/05/2004US20040021450 Amplifier circuit for adding a laplace transform zero in a linear integrated circuit
02/05/2004US20040021444 Digital controlled charge current regulator
02/05/2004US20040021427 Intelligent switch for connecting power to a load
02/05/2004DE10234080A1 Gleichspannungsabwärtswandler DC voltage down-converter
02/05/2004DE10232640A1 Circuit with semiconductor switch and process for blocking control switches between two control switches
02/04/2004EP1387480A2 Synchronous rectifier circuit
02/04/2004EP1387479A1 Digital controlled charge current regulator
02/04/2004EP1387478A2 Adding a Laplace transform zero to a linear integrated circuit for frequency stability
02/04/2004EP1387462A2 Co-generated power supply system
02/04/2004EP1142090B1 Voltage switch-over device
02/04/2004EP1114507B1 Circuit and method for automatic rectification in converters
02/04/2004CN2602543Y Soft switch circuit without depletion absorption
02/04/2004CN1473387A Switching power source apparatus
02/03/2004US6687143 Rectifying circuit and switching power supply device having the same
02/03/2004US6687141 Dissipative clamping of an electrical circuit with a clamp voltage varied in response to an input voltage
02/03/2004US6687137 Resonant switching power supply circuit with voltage doubler output
02/03/2004US6687136 Arc-machining power supply with switching loss reducing element
02/03/2004US6687105 Thermal compensation method and device for circuits with temperature-dependent current sensing elements
02/03/2004US6687102 Battery-operated power supply unit
02/03/2004US6686793 Gate enhanced tri-channel positive charge pump
02/03/2004US6686729 DC/DC switching regulator having reduced switching loss
02/03/2004US6686727 Method for power conversion using combining transformer
02/03/2004CA2352169C Fixed frequency regulation circuit employing a voltage variable dielectric capacitor
01/2004
01/29/2004WO2004010570A1 Power converter
01/29/2004WO2004010569A1 Bootstrap circuit for switching power supplies
01/29/2004WO2004010238A2 Single chip ballast control with power factor correction
01/29/2004WO2003033749A3 Matrix element precharge voltage adjusting apparatus and method
01/29/2004US20040019419 Motor driving controller in electric power steering apparatus
01/29/2004US20040017247 Voltage-change control circuit and method
01/29/2004US20040017182 Off-line converter with digital control
01/29/2004US20040017112 Power supply controlling device of an electronic equipment
01/29/2004US20040017111 Method and apparatus for regulating multiple outputs of a single inductor DC to DC converter
01/29/2004US20040016724 Method and apparatus for receiving a universal input voltage in a welding, plasma or heating power source
01/29/2004DE10331260A1 Spannungsanhebeschaltung Voltage boosting circuit
01/29/2004DE10328782A1 Steuerschaltung für einen MOSFET zur Synchrongleichrichtung Control circuit for a MOSFET for synchronous rectification
01/29/2004DE10245218A1 DC Energieversorgungsgerät zum Erzeugen von Plasma DC power supply apparatus for generating plasma
01/29/2004DE10231174A1 Spannungsumsetzer, der in der Lage ist, eine stabile Spannung auszugeben Voltage converter which is capable of outputting a stable voltage
01/29/2004DE10229633A1 Ansteuerung für einen Halbbrückenwechselrichter Drive for a half-bridge inverter
01/29/2004DE10065421B4 Tiefsetzsteller Buck converter
01/28/2004EP1385074A2 Power supplying method and apparatus capable of quickly responding to variations in input and output voltages to output a stable voltage
01/28/2004EP1384304A1 Dc-dc conversion charging apparatus
01/28/2004EP0887912B1 Power supply
01/28/2004CN1471758A Controlled self-oscillation modulator and pwoer conversion system for using same
01/28/2004CN1471755A Self-oscillating control circuit voltage converter
01/28/2004CN1471347A Power supply circuit, especially for discharge lamp
01/28/2004CN1471224A Switching power source circuit and electronic device
01/28/2004CN1471214A Burst load power source supply method
01/28/2004CN1470968A Switch device driving device and DC/DC current transformer
01/28/2004CN1470967A DC stable power source and large adjustable switch type DC stable power source
01/28/2004CN1136648C Electric Power conversion system
01/27/2004US6684378 Method for designing power supply circuit and semiconductor chip
01/27/2004US6683800 Resonant switched mode power supply system
01/27/2004US6683798 Switching power supply with transfer function control circuit
01/27/2004US6683797 Multi-stage DC—DC converter
01/27/2004US6683767 Semiconductor integrated circuit
01/27/2004US6683765 Switching power unit
01/27/2004US6683488 Charge pump circuit for semiconductor device
01/27/2004US6683443 Soft start circuit for regulated power supply
01/27/2004US6683442 Soft start of a switching power supply system
01/27/2004US6683441 Multi-phase switching regulator
01/27/2004US6683437 Current controlled motor amplifier system
01/27/2004US6683395 Power supply
01/27/2004CA2325680C Self-supplied dc/dc switching power supply
01/27/2004CA2197975C Universal power module
01/22/2004WO2004008617A1 A 12/42 volt dc brush motor control system
01/22/2004US20040015245 Modular architecture for industrial power delivery system
01/22/2004US20040012988 Buffer circuit
01/22/2004US20040012986 Two-stage converter using low permeability magnetics
01/22/2004US20040012985 Resonant converter with phase delay control
01/22/2004US20040012984 Pulse width modulated push-pull driven parallel resonant converter with active free-wheel
01/22/2004US20040012904 Output feedback and under-voltage detection system
01/22/2004US20040012584 Pumping circuit and flat panel display device
01/22/2004US20040012437 Boosting circuit
01/22/2004US20040012436 Clock regulation scheme for varying loads
01/22/2004US20040012378 Voltage booster circuit and semiconductor device for incorporating same
01/22/2004US20040012376 Current-mode switching regulator