Patents
Sitemap › H02 - Generation, conversion, or distribution of electric power › H02M - Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; Conversion of dc or ac input power into surge output power; Control or regulation thereof › 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)
09/1989
09/27/1989EP0334644A2 DC-to-DC voltage-increasing power source
09/27/1989EP0334285A2 Capacitive coupled power supplies
09/27/1989EP0334100A2 Full bridge switching circuit
09/27/1989EP0216821B1 Dc to dc converter
09/27/1989CN1035928A Switch-mode power supply
09/27/1989CN1035921A Chopper speed governing device of the microcomputer control
09/26/1989US4870555 High-efficiency DC-to-DC power supply with synchronous rectification
09/26/1989US4870554 Active snubber forward converter
09/26/1989US4870553 Double-switched flyback power-converter
09/26/1989US4870327 High frequency, electronic fluorescent lamp ballast
09/26/1989CA1261408A1 Power feed apparatus for load having reverse blocking characteristics
09/26/1989CA1261392A1 Automatic symmetry correction circuit for symmetrical current chopper
09/26/1989CA1260543A1 Power supply switch circuit comprising two mos fets connected in series opposition
09/21/1989WO1989008971A1 Circuit arrangement for monitoring the duty cycle of a transistor
09/20/1989EP0333275A2 Power supply device
09/19/1989US4868908 Power supply down-conversion, regulation and low battery detection system
09/19/1989US4868732 Pluggable power system having magnetic flux coupled power transformer and inductive filter components
09/19/1989US4868730 DC to DC converter current pump
09/19/1989US4868729 Power supply unit
09/19/1989US4868662 External-power stage
09/19/1989US4868415 Voltage level conversion circuit
09/14/1989DE3806983A1 Circuit arrangement for producing voltages with different polarity
09/13/1989EP0332436A2 Series resonant power converter and method of controlling the same
09/13/1989EP0332095A2 A switch-mode power supply
09/12/1989US4866590 Supply having a load invariant auxiliary power supply supplied from a main transformer and a current suppressing inductor
09/12/1989US4866589 Voltage resonance type switching power source apparatus
09/12/1989US4866588 Circuit for suppression of leading edge spike switched current
09/12/1989US4866587 Electronic ringing signal generator
09/12/1989US4866586 Shoot-through resistant DC/DC power converter
09/12/1989US4866367 Multi-loop control for quasi-resonant converters
09/12/1989US4866344 High voltage power supply for a microwave electron tube
09/12/1989CA1259373A1 Power supply circuit
09/08/1989WO1989008349A1 Two-state, bilateral, single-pole, double-throw, half-bridge power-switching apparatus and power supply means for such electronic power switching apparatus
09/08/1989WO1989008347A1 Voltage converter
09/08/1989WO1989008345A1 Power-operated device with a cooling facility
09/06/1989EP0331592A1 Switching power supply with a progressive start
09/06/1989EP0331157A2 Switching power supply
09/06/1989EP0330987A1 Forward converter with a transformer and a demagnetizing device
09/06/1989CN1035402A 开关模式电源 Switch mode power supply
09/05/1989US4864486 Plank and frame transformer
09/05/1989US4864485 Switched mode power supply with start-up control
09/05/1989US4864482 Conversion circuit for limiting inrush current
09/05/1989US4864481 Regulator for isolated chassis power supply
09/05/1989US4864480 Process for operating a switching controller and switching controller functioning according to this process
09/05/1989US4864479 Full-bridge lossless switching converter
09/05/1989US4864478 Integrated-magnetics power converter
09/05/1989US4864214 Solid state power controller
09/05/1989US4864213 DC supply having low and high constant voltages for powering a polarity inverter controller
09/05/1989CA1259127A1 Suppression circuit for video apparatus power supply
09/05/1989CA1259110A2 Amplifier with double rail output
08/1989
08/30/1989EP0329841A2 Method of operating an electric power supply with DC-DC converter
08/30/1989CN1035212A Source volt-ampere/load volt-ampere differential converter
08/29/1989US4862339 DC power supply with improved output stabilizing feedback
08/29/1989US4862338 Ringing choke converter using single switching element
08/29/1989US4862057 Cycle-controlled power converter
08/24/1989WO1989007854A1 Process and circuit arrangement for determining the charging time of an accumulator
08/23/1989EP0329571A1 Demagnetization control device for a switch-mode supply with primary and secondary regulation
08/22/1989US4860189 Full bridge power converter circuit
08/22/1989US4860185 Integrated uninterruptible power supply for personal computers
08/22/1989US4860184 Half-bridge zero-voltage switched multi-resonant converters
08/22/1989US4859927 Power supply with improved switching regulator
08/17/1989DE3803906A1 Verfahren und schaltungsanordnung zur bestimmung der ladezeit eines akkumulators Method and circuit arrangement for the determination of the charging time of Accumulator
08/16/1989EP0327881A1 Switched-mode power supply
08/16/1989EP0128223B1 High-voltage stabilizing circuit
08/15/1989US4858099 Resonant inverter
08/15/1989US4858097 Switching power supply with an injection signal frequency locking circuit
08/15/1989US4858096 Resonant converter for stabilized operation of switching devices
08/15/1989US4858094 Switched mode power supply with improved load regulation
08/15/1989US4858093 Integrated magnetic power converter
08/15/1989US4857822 Zero-voltage-switched multi-resonant converters including the buck and forward type
08/10/1989WO1989007363A1 Dc to dc converter with feed forward and feed back regulation
08/09/1989EP0327512A1 Power supply gradually developing an output voltage when switched on
08/08/1989US4855891 Power supply design
08/08/1989US4855889 High-tension generator circuit with very low current consumption
08/08/1989US4855888 Constant frequency resonant power converter with zero voltage switching
08/08/1989US4855887 Current and frequency converter having means to reduce switching losses
08/08/1989US4855858 Power regulator with overcurrent protection
08/08/1989US4855665 Status indicating circuit for paralleled switching power supplies
08/08/1989US4854948 Supply circuit for electrostatic dust separator
08/03/1989DE3800787A1 DC/DC converter with a transformer
08/02/1989EP0326489A1 Working point regulation system of a DC power supply
08/02/1989EP0326220A2 Circuit arrangement for supplying a load
08/02/1989EP0326064A1 Power supply device for supplying at least one load with a DC current source
08/02/1989EP0148855B1 Parallel mosfet power switch circuit
08/02/1989EP0100331B1 Apparatus for securely interrupting the electric power supply from a low-frequency or direct voltage source to a load
08/01/1989US4853832 Cascaded resonant bridge converters
08/01/1989US4853668 Integrated magnetic converter core
07/1989
07/26/1989EP0324904A1 Power supply producing a regulated DC voltage
07/19/1989EP0324089A2 Method for producing voltage pulses
07/18/1989US4849874 Single mag amp control system for regulating bipolar voltage output of a power converter
07/18/1989US4849869 Switching regulator having a pulse width control system
07/18/1989US4849868 Pulse width modulated switching power supply
07/18/1989US4849651 Two-state, bilateral, single-pole, double-throw, half-bridge power-switching apparatus and power supply means for such electronic power switching apparatus
07/11/1989US4847742 Multi-channel inverter circuit
07/11/1989US4847549 Switching voltage regulator with stabilized loop gain
07/11/1989US4847513 Power-operated device with a cooling facility
07/06/1989DE3842910A1 Mikrowellenenergieerzeugungssystem Microwave power generation system
07/05/1989EP0323221A2 Instantaneous voltage drop detector for DC power source
07/05/1989EP0323156A2 Voltage multiplier circuit
07/04/1989US4845605 High-frequency DC-DC power converter with zero-voltage switching of single primary-side power device
1 ... 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 ... 545