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)
12/1987
12/08/1987US4712169 Circuit arrangement for forming a direct voltage from a sinusoidal input voltage
12/02/1987EP0247687A1 D.C. voltage converter with overload protection
12/02/1987EP0247409A2 Switching power supply having a primary chopping converter
12/02/1987EP0247407A2 Switching mode power supply
12/02/1987CN87103749A 电气变换器 Electrical converter
12/01/1987US4710859 D.C. to D.C. converter with a switch-mode power supply
12/01/1987US4710697 Off-line series type regulating power supply
12/01/1987US4710695 Power supply circuit
12/01/1987CA1229873A1 Power source circuit
11/1987
11/26/1987DE3617374A1 DC/DC voltage converter having a resonant circuit
11/25/1987EP0246491A2 DC-DC forward converter
11/25/1987CN87103527A Power-supply circuit
11/24/1987US4709323 Buck-boost parallel resonant converter with inductive energy recovery circuit
11/24/1987US4709319 Power supply device
11/24/1987US4709318 UPS apparatus with control protocols
11/24/1987US4709316 Single-ended DC-to-DC converter with lossless switching
11/24/1987US4709315 Isolated controller circuit
11/24/1987CA1229657A1 Dc-dc converter
11/19/1987EP0245908A1 Switched direct voltage converter
11/17/1987US4707776 Metal oxide semiconductor stabilized dc to dc/ac converter
11/17/1987US4707775 Free running current supply for a monitor
11/17/1987CA1229379A1 Method of operating parallel-connected semiconductor switch elements
11/12/1987DE3615176A1 Switched-mode power supply, especially a forward converter or push-pull converter, having electronic current limiting
11/12/1987DE3615168A1 Switched-mode power supply, especially a flyback converter, having electronic current limiting
11/11/1987EP0244907A1 Switched voltage converter
11/11/1987EP0244623A2 Automatic restart circuit for a switching power supply
11/11/1987EP0085112B1 Drive circuit for power switching transistor
11/10/1987US4706181 Switching converter with enhanced voltage clamping and energy recovery
11/10/1987US4706178 Power conversion system
11/10/1987US4706177 DC-AC inverter with overload driving capability
11/10/1987US4706176 Clocked direct voltage converter
11/10/1987US4706009 Electronic switching power supply
11/10/1987US4705966 Circuit for generating a substrate bias
11/04/1987EP0243862A2 Electric converter
11/04/1987EP0243738A2 Transformer for a regulated switched-mode power supply
11/04/1987EP0243403A1 Rfi suppression technique for switching circuits.
11/04/1987EP0157866B1 Low input voltage precision dc-to-dc voltage converter circuit
11/04/1987CN87100300A Restoring circuit for complementary metal-oxide-semiconductor locking-in state
11/03/1987US4704674 Power feed apparatus for load having reverse blocking characteristics
11/03/1987US4704671 Switching type voltage regulator with noncontinuous feedback
11/03/1987US4704670 Power supply with regulated output voltage
10/1987
10/28/1987EP0242759A2 Current limiter for constant current for switching driving devices
10/27/1987US4703409 Coupled power supply inductors for reduced ripple current
10/27/1987US4703196 High voltage precharging circuit
10/22/1987WO1987006375A1 Power regulator for a contactless credit card system
10/22/1987DE3705468A1 Circuit arrangement for detecting and measuring the output current of an isolating transformer (flyback converter)
10/21/1987EP0241979A2 Circuit arrangement for the reduction of an interfering current produced by a load
10/21/1987EP0241976A1 Circuit arrangement to produce a DC voltage from a sinusoidal input voltage
10/20/1987US4701830 Electronic circuit module
10/14/1987EP0241250A2 Switching mode power supply
10/13/1987US4700280 Switching power supply using a saturable reactor to control a switching element
10/13/1987US4699824 Thermoset amino or phenolic resin substrate with pressure sensitive adhesive
10/08/1987DE3611556A1 Switched-mode power supply
10/07/1987EP0240436A1 DC voltage multiplier which can be integrated into a semiconductor structure
10/07/1987EP0240434A1 Protection circuit for a switching power supply
10/07/1987EP0240312A2 Stabilized electric power apparatus for generating direct and alternating current simultaneously in one transformer
10/06/1987US4698743 Resonance inverter with control means for detecting peak voltage and having a starting circuit
10/06/1987US4698742 High-voltage milberger slip slide power conditioner
10/06/1987US4698740 Current fed regulated voltage supply
10/06/1987US4698738 Parallel connected power supplies having parallel connected control circuits which equalize output currents to a load even after one supply is turned off
10/06/1987US4698737 DC to DC converter
10/06/1987CA1227832A1 Appartus for delectinf failures in a chopper equipped electrical power supply
09/1987
09/30/1987EP0239411A2 Video apparatus for generating a conductively isolated control signal
09/29/1987US4697230 AC power supplied static switching apparatus having energy recovery capability
09/29/1987CA1227572A1 Charge pump system for non-volatile ram
09/29/1987CA1227534A1 Dc-dc converter
09/24/1987DE3610035A1 Low-loss switched-mode regulator which is supplied with a variable current
09/24/1987DE3609731A1 Method for regulating the output voltage of a switched-mode regulator, and a device for this purpose
09/24/1987DE3609297A1 Direct current supply in accordance with the current reversal method, especially for electrolytic baths for material deposition or material erosion
09/24/1987DE3609296A1 Device for varying the current in a pulse-like manner in a direct current load, especially an electrolytic bath for material deposition and material erosion
09/23/1987EP0237861A2 Power converter
09/23/1987EP0237652A1 AC current sensing circuit
09/23/1987CN87101895A Self excited blocking oscillation type dc converter
09/23/1987CN86101444A Novel train steady inverter
09/22/1987US4695936 Switching mode power supply start circuit
09/22/1987US4695935 Power supply
09/22/1987US4695934 Multiple output resonant power supply
09/22/1987US4695933 Multiphase DC-DC series-resonant converter
09/22/1987US4695770 Circuit for switching current in an inductive load
09/22/1987US4695413 Reducing power losses and rapid voltage and current variations
09/16/1987CN86205683U Negative feedback width modulated voltage stabilizing dc step-up voltage regulator
09/15/1987US4694388 Synchronizer for commonly clocked converters
09/15/1987US4694386 Chopped power supply control circuit with automatic start-up
09/15/1987US4694385 Switched-mode power supply with delay network to reduce switching losses
09/15/1987US4694384 HVIC power supply controller with primary-side edge detector
09/15/1987US4694383 Controller for a resonant converter
09/15/1987US4694240 Switching regulator
09/15/1987US4694193 Fault recognition circuit for parallel power supply devices feeding a user
09/10/1987DE3608082A1 Circuit arrangement for stabilising the output DC voltage with a varying input DC voltage of a step-down/step-up controller combination
09/10/1987DE3607018A1 Switched-mode power supply
09/08/1987US4692854 Method and apparatus for modulating inverter pulse width
09/08/1987US4692853 Control circuit for a chopped power supply with progressive start up
09/08/1987US4692851 Harmonic-resonant power supply
09/08/1987US4692688 Zero standby current switch method and apparatus
09/02/1987EP0234413A2 Circuit arrangement for current supply
09/02/1987EP0234145A1 Automatic balance correction circuit for a balanced current chopper
09/02/1987EP0074391B1 Regulated power supply
09/02/1987CN85106900A Power circuit device for television receiver
09/01/1987USH335 Converter
09/01/1987US4691330 Duty control circuit for gradually reducing the duty time
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