H02M 3 - Conversion of dc power input into dc power output

Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
11/1993
11/30/1993	US5267133 Switching power source
11/30/1993	US5267132 High power switching power supply with high power factor
11/30/1993	US5266842 Charge pump circuit for a substrate voltage generator
11/25/1993	WO1993023974A1 Stable power supply with high power factor
11/25/1993	WO1993023915A1 Voltage measuring circuit
11/24/1993	EP0571356A1 AC to DC converter
11/24/1993	EP0571232A2 Boost power converter apparatus
11/24/1993	EP0571067A1 Forward converter with two active switches and unity power factor capability
11/24/1993	EP0570821A2 Active free-wheeling element
11/24/1993	EP0570704A2 Flyback converter
11/23/1993	US5265003 Miniaturized switching power supply with programmed level gate drive
11/23/1993	US5265001 Power supply circuit with switching frequency of saturable ferrite transformer controlled by class A amplifier
11/23/1993	US5264782 Dropout recovery circuit
11/23/1993	US5264780 Switching power supply providing a regulated output
11/18/1993	DE4314860A1 Battery powered direct current generator for pre-heating catalytic converter in motor vehicle - has parallel power MOS transistor modules controlled via reed relay and having common outputs connected in respective input resistors
11/18/1993	DE4214918A1 Regulation of output voltage of AC mains power unit - by controlling delay in switching of bridge rectifier output smoothing capacitor for correction of output voltage deviation
11/16/1993	US5263000 Drain power supply
11/16/1993	US5262934 Charge pump circuit
11/16/1993	US5262933 Control circuit for dual power supply having different start-up operating voltages
11/16/1993	US5262932 Power converter
11/16/1993	US5262931 Power converter
11/16/1993	US5262930 Zero-voltage transition PWM converters
11/11/1993	WO1993022835A1 Drive circuitry for a mos field effect transistor
11/11/1993	WO1993022834A1 Circuit for the fast turning off of a field effect transistor
11/11/1993	WO1993022825A1 Efficient transistor drive circuit for electrical power converter circuits and the like
11/11/1993	WO1993022824A1 Digital controlled converter and method
11/09/1993	US5260996 Current limited electronic ringing generator
11/09/1993	US5260861 Digital controlled converter and method
11/09/1993	US5260646 Low power regulator for a voltage generator circuit
11/09/1993	US5260645 Power supplies
11/09/1993	US5260607 Snubber circuit for power converter
11/03/1993	EP0568123A1 Low loss power supply apparatus with a d.c converter
11/02/1993	US5258901 Holdover circuit for AC-to-DC converters
11/02/1993	US5258662 Micropower gate charge pump for power MOSFETS
10/1993
10/28/1993	WO1993021679A1 Switched electronic supply unit
10/28/1993	WO1993019514A3 Switching regulator system
10/28/1993	DE4313359A1 Switched mode power supply - has two switches in series and in parallel with DC voltage source, operating alternately on control signal actuation
10/27/1993	EP0567280A2 Quasi-resonant diode drive current source
10/27/1993	EP0567257A2 Drive circuit for power switches of a zero-voltage switching power converter
10/27/1993	EP0566917A2 Freely oscillating converter
10/26/1993	US5257170 Electric converter with several induction coils
10/21/1993	DE4312239A1 Charge pump circuit for insulated gate MOS semiconductor memory - has transistor responsive to clock pulse signal applied by capacitor and rectifier comprising different conductivity type or conductivity mechanism
10/20/1993	CN1077573A Freely oscillating switched-mode power supply
10/20/1993	CN1077572A Tree network complex voltage control device
10/20/1993	CN1022529C High-frequency switch capacity type inverter
10/19/1993	US5255177 High-voltage power source control device
10/19/1993	US5255174 Regulated bi-directional DC-to-DC voltage converter which maintains a continuous input current during step-up conversion
10/19/1993	US5254937 Power supply control device having memory tables for providing a stabilized output
10/14/1993	WO1993020617A1 Digital clock selection and changeover apparatus
10/14/1993	WO1993020610A1 Compact and efficient transformerless power conversion system
10/14/1993	DE4312084A1 HV power supply with voltage peak limiting network - coacts with two input lines, with capacitor coupled to one input line, and line between resistor and diode
10/14/1993	DE4212189A1 Pulsed charging of capacitor for laser operation - has inverter driving transformer with output stage including resonator circuit capacitor for low loss operation.
10/14/1993	DE4212041A1 Elektronisches Schaltnetzteil An electronic switching power supply
10/14/1993	CA2132971A1 Compact and efficient transformerless power conversion system
10/12/1993	US5252911 AC to DC power converter with regulated bi-polar outputs
10/07/1993	DE4210817A1 Electronic pulse width controller with clock pulse generator - has pulse width generator, fault amplifier, clock pulse generator with feedback branch to output of fault amplifier comparator
10/06/1993	EP0564413A2 Image forming apparatus copying with power supply voltage drift
10/06/1993	EP0564289A2 Zero-current switching forward converter
10/05/1993	US5250775 Electric cooking apparatus adapted for generating high power output containing a battery
10/05/1993	US5250774 Power supply circuit for driving magnetron
09/1993
09/30/1993	WO1993019530A1 A high frequency voltage multiplier for an electrically erasable and programmable memory device
09/30/1993	WO1993019515A1 Continuous, in-phase switched-mode resonant converter power supply
09/30/1993	WO1993019514A2 Switching regulator system
09/30/1993	DE4309218A1 Niederspannungs-Vorschaltanordnung für eine Entladungs-Lichtquelle großer Helligkeit Low-voltage ballast circuit for a discharge light source of high brightness
09/29/1993	EP0562772A1 Holdover circuit for AC-to-DC converters
09/29/1993	EP0562662A1 AC/DC converter
09/29/1993	CN1076792A Control and drive circuit of high performance cost switch power supply
09/28/1993	US5249113 Dc to dc converter of the push-pull type with mosfet switches
09/28/1993	CA2089301A1 Low voltage ballast circuit for a high brightness discharge light source
09/23/1993	DE4209214A1 Limiter e.g. for voltage peaks caused by stray inductances - has useful signal rectifying diode with shunt contg. storage capacitor
09/23/1993	DE4209053A1 Schaltreglersystem A switching controller system
09/22/1993	EP0561624A2 Multi-voltage control circuit of tree branch network
09/22/1993	CN2142617Y Highly efficient pressure charging rectifier
09/21/1993	US5247241 Frequency and capacitor based constant current source
09/21/1993	US5247240 Miniaturized switching power supply with circuit for unidirectional suppression of leading spike
09/21/1993	US5247239 Dual dc/dc voltage converter power system
09/16/1993	WO1993018573A1 Bipolar voltage doubler circuit
09/16/1993	DE4210785C1 The Current regulation system for a remote current supply circuit - uses a voltage drop across an current sensor in load current circuit evaluated by regulator supplied from constant current source
09/15/1993	EP0560711A1 Electric supply circuit for the generation of separately controllable current pulses
09/15/1993	EP0560666A2 DC voltage divider
09/15/1993	EP0560653A1 Control method for an electromechanical load by at least one converter with pulsed switch(es) and device for its operation
09/15/1993	EP0559928A1 Switching DC-DC converter
09/15/1993	CN1076317A DC potential divider
09/15/1993	CN1022152C Large-power NC voltage-regulating converter
09/14/1993	US5245526 Below ground current sensing with current input to control threshold
09/14/1993	US5245524 DC-DC converter of charge pump type
09/14/1993	US5245522 Power supply controlled to supply load current formed as sine wave
09/14/1993	US5245520 Asymmetrical duty cycle power converter
09/09/1993	DE4206478A1 Voltage stabiliser integrated circuit for CD player, television receiver or video recorder - compares constant voltage provided by internal source with reference voltage and clock voltage to control series switch, with rectifier across IC pins
09/08/1993	EP0559009A1 D.C. chopper regulating method and apparatus incorporating bilateral regulating voltage path
09/07/1993	US5243261 Modulated high frequency dimmer circuit with infrared suppression
09/07/1993	US5243163 Electrical supply circuit for a load such as a magnetron
09/04/1993	CA2087566A1 D. c. chopper regulating method and apparatus incorporating bilateral regulating voltage path
09/01/1993	EP0558409A1 Device for generating an electric voltage having a predetermined waveform and iontophoretic transermal drug delivery apparatus, equipped with such a device
09/01/1993	EP0558339A2 Charge pump circuit
09/01/1993	EP0557775A1 Arrangement with a rectifier connectable to an A.C.voltage
09/01/1993	EP0437423B1 Dc/dc converter
08/1993
08/29/1993	CA2090587A1 Apparatus for phase-cutting control
08/26/1993	DE4204912A1 Network supply stage providing regulated output voltage - uses back-up current limitation upon fault in regulating path between power transformer secondary and pulse width modulator
08/25/1993	EP0556663A1 Below ground current sensing with current input to control threshold

1 ... 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 ... 545