Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
11/1988
11/29/1988US4788634 Resonant forward converter
11/29/1988US4788591 Switched-mode power supply for a television receiver provided with a stand-by system
11/29/1988US4788486 Vehicular power supply system having a plurality of power supply voltages
11/29/1988US4788448 Power transfer of direct current with inductive couplings
11/23/1988EP0292269A2 Integrated high voltage generating system
11/23/1988EP0292148A2 Charge pump circuitry having low saturation voltage and current-limited switch
11/23/1988EP0291742A2 Power supply device with a blocking oscillator
11/22/1988US4787020 Full-wave output type forward converter
11/22/1988US4786826 Power interface circuit with control chip powered from power chip
11/22/1988CA1245350A1 Video apparatus for generating a conductively isolated control signal
11/22/1988CA1245284A1 Flyback switching regulator
11/17/1988WO1988009084A1 Switching regulator
11/17/1988EP0291120A2 A regulated high frequency power supply
11/17/1988EP0173697B1 Flyback switching regulator
11/15/1988US4785387 Resonant converters with secondary-side resonance
11/10/1988DE3813066A1 Switched current regulator
11/10/1988DE3713541A1 Kombinierter sekundaerschaltregler Combined sekundaerschaltregler
11/08/1988US4783727 DC/DC converter
11/08/1988CA1244517A1 Acceleration power supply
11/03/1988WO1988008638A1 Combined secondary circuit regulator
11/03/1988WO1988008637A1 Combined secondary circuit regulator
11/03/1988DE3712796A1 Self-oscillating DC/DC voltage converter operating on the flyback converter principle
11/02/1988EP0289235A2 Start-up control circuitry for a television apparatus
11/02/1988EP0289196A2 High frequency resonant power converter
11/02/1988EP0289032A2 Magnetron feeding apparatus and method of controlling the same
11/02/1988EP0289013A2 A power supply for a magnetron
11/02/1988EP0288971A2 Monolithic integrated circuit device
11/02/1988EP0288710A2 Switching regulator
11/01/1988US4782437 Magnetic material biasing method and apparatus
11/01/1988US4782242 Circuit arrangement for generating high voltage pulses
10/1988
10/27/1988DE3712228A1 Multi-pulse flyback converter (isolating transformer) having a common energy store
10/26/1988EP0288312A2 On/off control circuitry for television
10/26/1988EP0288075A2 Sub-booster circuit for stepping up an output voltage of main booster circuit
10/26/1988EP0288015A2 Switching regulator
10/26/1988EP0287863A2 Power select circuit
10/25/1988US4780854 Semiconductor integrated circuit device
10/20/1988DE3712230C1 DC voltage forward converter for a plurality of output voltages
10/19/1988EP0287109A2 Switching regulator
10/19/1988EP0286909A1 Process and device for controlling and regulating a switching current supply unit
10/18/1988US4779185 Constant voltage supply system including a constant current source driven switching regulator
10/18/1988US4779184 Switch mode power supply with reduced noise
10/18/1988US4779182 Power supply for an electrostatic filter
10/18/1988US4779027 DC to DC converter with overvoltage protection circuit
10/12/1988EP0286384A2 Switch mode electrical power controller
10/12/1988EP0285905A2 Controlled DC-DC converter
10/11/1988US4777577 Integrated dual charge pump power supply and RS-232 transmitter/receiver
10/11/1988US4777576 Energy converter with series resonant bridge and switching circuit
10/11/1988US4777424 Battery charger
10/11/1988US4777406 High voltage power supply particularly adapted for a TWT
10/11/1988US4777380 Method of switching the electric supply between independent load circuits
10/06/1988WO1988007413A1 A method for producing a variable d.c. voltage
10/06/1988WO1988007412A1 A voltage converter
10/06/1988DE3709989A1 Step-down controller for switched-mode power switchgear units
10/05/1988EP0284615A1 Magnetic material biasing method and apparatus.
10/04/1988US4775821 Variable input voltage DC to DC converter with switching transistor drive current regulator
09/1988
09/28/1988EP0284306A2 DC to DC converter for ethernet transceiver
09/28/1988EP0284172A2 Source volt-ampere/load volt-ampere differential converter
09/28/1988EP0283842A1 Flyback switching converter
09/28/1988EP0283782A1 TV receiver with regulated switching power supply insulated from the network
09/28/1988EP0283772A1 Circuitry limiting the supply voltage issued by a secondary winding of a transformer through a rectifier
09/27/1988US4774649 Integrated magnetic resonant power converter
09/21/1988EP0283254A2 Push-pull drive circuit for a power converter
09/21/1988CN87217517U Current-stabilizing voltage-regulating chopper used for continuous solid laser source
09/20/1988US4772995 Switching supply with pulse width and rate modulation
09/20/1988US4772810 Apparatus for non-dissipative switching transistor snubber
09/14/1988CN87216365U 0-9 v. auto light adjustable battery box
09/06/1988US4769784 Capacitor-plate bias generator for CMOS DRAM memories
09/06/1988US4769754 Stabilized welding power source including a series-resonant current-regulated converter using a transformer having an air-gapped core
09/06/1988US4769753 Compensated exponential voltage multiplier for electroluminescent displays
09/01/1988DE3705249A1 Circuit arrangement for decoupling the output of a voltage converter
08/1988
08/30/1988US4768142 Power-supply circuit
08/30/1988US4768141 D.c.-a.c. converter having an asymmetric half-bridge circuit
08/30/1988US4767978 Use in a well logging sonde lowered on a logging cable
08/30/1988US4767959 Method and apparatus for driving capacitive-type load
08/24/1988EP0279335A2 Switching power supply
08/24/1988EP0074399B1 Forward converter switching at zero current
08/23/1988US4766528 Switched-mode power supply having a standby state
08/23/1988US4766364 Parallel power systems
08/17/1988EP0278128A1 Power-supply arrangement
08/16/1988US4764856 Power-supply arrangement
08/10/1988EP0277784A1 Power supply
08/09/1988US4763238 Extended overload protection circuit for a switch mode power supply having cycle detector, memory and flip-flop inhibition
08/09/1988US4763237 DC/AC/DC Power conversion system including parallel transformers
08/09/1988US4763236 DC-DC converter
08/09/1988US4763235 DC-DC converter
08/09/1988US4763061 Primary switched-mode DC-DC converter with summed input current and input voltage responsive control
08/09/1988CA1240362A1 Control device for a direct current semiconductor regulator
08/03/1988CN87101134A Waveform reformation technology
08/02/1988US4761728 High voltage generating device
08/02/1988US4761727 Current sensing circuit for use with decoupled half bridge converter
08/02/1988US4761725 Digitally controlled A.C. to D.C. power conditioner
08/02/1988US4761724 Transformer coupling for transmitting direct current through a barrier
08/02/1988US4761722 Switching regulator with rapid transient response
08/02/1988US4761702 CMOS latch-up recovery circuit
08/02/1988CA1239986A1 Control of a series resonant converter
07/1988
07/28/1988DE3701395A1 Method for operating a switched-mode regulator
07/27/1988EP0275698A1 Frequency limited resonant regulator
07/26/1988US4760512 Circuit for reducing transistor stress and resetting the transformer core of a power converter
07/26/1988US4760324 Non-dissipative snubber circuit for high-efficiency switching power supplies
07/20/1988EP0275223A1 High-voltage generator circuit with very low current consumption