Patents for H02M 3 - Conversion of dc power input into dc power output (54,461)
07/1989
07/04/1989CA1256940A1 Power-supply circuit
06/1989
06/27/1989US4843536 AC input free power source
06/27/1989US4843535 Switching power supply
06/27/1989US4843532 Regulating pulse width modulator for power supply with high speed shutoff
06/27/1989US4843300 Improved power supply for intermittently energizing an external device requiring high power during intermittent periods of time from an input power source with relatively lower instantaneous power capability
06/27/1989US4843258 Drive circuit with a ring oscillator for a semiconductor device
06/27/1989CA1256551A1 Primary switched-mode power supply unit
06/21/1989EP0320605A2 Electronic switching power supply with an inductance DC-DC converter
06/20/1989US4841564 DC-supply arrangement for a telecommunication line
06/20/1989US4841429 Capacitive coupled power supplies
06/20/1989US4841427 Capacitive voltage lowering circuit with dual outputs
06/20/1989US4841313 RF driver and control
06/20/1989US4841220 Dc-to-Dc converters using multi-resonant switches
06/20/1989US4841165 D. C. power controller
06/14/1989EP0320307A2 DC Supply having low and high constant voltages for powering an inverter controller
06/14/1989EP0319669A2 Current regulator
06/14/1989EP0319660A1 Arrangement for relieving a semiconductor switch from high blocking voltage stress, and its use
06/13/1989US4839915 Inverter type X-ray apparatus
06/13/1989US4839787 Integrated high voltage generating system
06/13/1989US4839786 DC-DC converter
06/13/1989CA1255763A1 Semiconductor module for a high-speed switching arrangement
06/13/1989CA1255747A1 Fly-back bifilar secondary winding transformer power supply with a modulated pulse width voltage input
06/08/1989DE3840406A1 Protective circuit for a switched-mode power supply circuit
06/07/1989EP0319269A2 Inductive power converter
06/07/1989EP0319063A2 Voltage multiplier circuit and rectifier element
06/07/1989EP0318586A1 Switching regulator
06/06/1989US4837670 Bias source for a switchmode converter
06/06/1989US4837495 Current mode converter with controlled slope compensation
06/06/1989US4837452 Off-line dc power supply
06/01/1989WO1989005059A1 Ac to dc power converter with integrated line current control
06/01/1989WO1989005057A1 High frequency rectifier with sinusshaped primary current
05/1989
05/30/1989US4835669 Dual mode flyback power supply
05/30/1989US4835652 Bi-directional DC power controller with fault protection
05/30/1989US4835454 Advanced feed forward switch mode power suppply control
05/24/1989EP0316981A2 Electric converter
05/24/1989EP0316892A2 Improved resonant converter with high conversion efficiency and low output impedance
05/23/1989US4833582 Frequency converter circuit including a single-ended blocking frequency converter
05/23/1989US4833581 Power supply for a magnetron
05/16/1989US4831507 Frequency controlled preload
05/11/1989DE3736800A1 Switched mode power supply
05/10/1989EP0315366A2 A regulated dc power supply having master and slave regulators
05/09/1989US4829415 Push-pull drive circuit for a power converter
05/09/1989US4829413 Converter circuit
05/09/1989US4829232 Nonlinear resonant switch and converter
05/05/1989WO1989004083A1 Switching regulator
05/05/1989WO1989004082A1 High efficiency converter
05/03/1989EP0314287A1 Pluggable power system having magnetic flux coupled power transformer and inductive filter components
05/03/1989EP0314221A2 Semiconductor switch with parallel LDMOS and LIGT
05/03/1989EP0313743A2 Switching power supply
05/03/1989DE3808433C1 Adjustable push-pull DC/DC converter and method for its control
05/03/1989DE3808432C1 Adjustable push-pull DC/DC converter
05/03/1989DE3734786A1 Netzteil, welches von einem netzwechselstrom gespeist wird und eine geregelte gleichspannung liefert Power supply, which is fed from a commercial AC power and supplies a regulated DC voltage
05/02/1989US4827393 Alternator and regulator for use therewith
05/02/1989US4827391 Apparatus for implementing output voltage slope in current mode controlled power supplies
04/1989
04/27/1989DE3822956A1 Electrical current compression for increasing the efficiency of direct energy converters
04/25/1989US4825351 AC-DC converting apparatus having power factor improving circuit utilizing a photocoupler
04/25/1989US4825350 Method and apparatus for detecting a reduction in the input voltage to a power supply
04/25/1989US4825348 Resonant power converter with current sharing among multiple transformers
04/25/1989US4825347 Pulse width modulation control circuit
04/25/1989US4825144 Dual channel current mode switching regulator
04/25/1989US4825142 CMOS substrate charge pump voltage regulator
04/20/1989WO1989003610A1 A dc to dc power converter
04/20/1989WO1989003609A1 Current mode converter with controlled slope compensation
04/20/1989WO1989003608A1 Process and device for preventing interference of transients in a buck cell
04/20/1989DE3734220A1 Circuit arrangement for frequency stabilisation of free-running fly black converters
04/19/1989EP0029067B1 A converter circuit for storing a predetermined quantity of energy
04/19/1989CN2036333U Miniature line commutated inverter for replacing laminated battery
04/18/1989US4823249 High-frequency resonant power converter
04/18/1989US4823247 Stabilized power supply unit
04/18/1989US4823191 Image-sensing apparatus
04/18/1989US4823070 Switching voltage regulator circuit
04/18/1989US4823023 Transistor with differentiated control switching circuit
04/12/1989EP0052643B1 Converter with two or more independently controlled loads
04/12/1989CN2035934U Universal ic dc convertor
04/11/1989US4821166 Power-supply circuit
04/11/1989US4821165 High voltage DC power supply
04/11/1989US4820936 Integrated CMOS circuit comprising a substrate bias voltage generator
04/06/1989WO1989003136A1 Power supply start circuit
04/06/1989WO1989003135A1 Switching network component
04/06/1989DE3832446A1 Device for DC voltage conversion of an input voltage by actuation of at least one electronic switch
04/06/1989DE3832445A1 Device for low-loss switching-load reduction in pulsating operation
04/06/1989DE3832443A1 Device for vehicle control of railway trains
04/06/1989DE3832442A1 Device for operating electric loads of a passenger train
04/05/1989EP0309919A2 A power conversion apparatus
04/05/1989EP0309900A1 Switching power supply
04/05/1989EP0309892A2 Switching power supply
04/05/1989EP0309867A2 Switching power supply
04/04/1989US4819144 Switching power supply circuit with stored charge removal switch
03/1989
03/30/1989DE3829627A1 Device for producing at least one supply voltage
03/29/1989EP0308648A1 Circuit arrangement for a regulated switching power supply
03/29/1989EP0308642A1 Device for limiting the inrush current of a D.C. converter
03/29/1989EP0308622A1 Switching power supply
03/29/1989EP0297123A4 Regulated ac/dc converter.
03/28/1989US4816986 Power control device for the magnetron of microwave oven
03/28/1989US4816982 AC to DC power converter with integrated line current control for improving power factor
03/28/1989US4816978 Electrical power supply circuit, in particular for a wave generator for a pulse radar
03/28/1989US4816821 Clocked direct voltage converter
03/28/1989US4816739 DC/DC converter
03/22/1989EP0308260A2 Energy transfer arrangement
03/21/1989US4814965 High power flyback, variable output voltage, variable input voltage, decoupled power supply