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 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
12/1989
12/19/1989US4888673 High voltage DC power supply
12/19/1989US4888672 Starting circuit of self-excited inverter
12/19/1989US4888545 Improved tap switching power supply
12/19/1989US4888505 Voltage multiplier compatible with a self-isolated C/DMOS process
12/14/1989DE3819978A1 Invertor having an intermediate circuit
12/13/1989EP0345981A2 System for supplying power
12/13/1989CN2049436U Mechanic type power inverter
12/13/1989CN2049435U Inverter supplied by solar light cell
12/12/1989US4887201 Self-oscillating inverter with adjustable frequency
12/12/1989US4887200 Method and apparatus for determining the actual value of the margin-angle in the valves of an inverter
12/12/1989US4887199 Start circuit for generation of pulse width modulated switching pulses for switch mode power supplies
12/06/1989EP0345192A2 Power supply providing constant D.C. output voltages from variable A.C. input voltages
12/06/1989EP0344243A1 Quasi-resonant current mode static power conversion method and apparatus
12/06/1989CN2049046U High speed triphase constant current charging power source
12/06/1989CN2049042U Field excitation electropeter for mini diesel generator
12/05/1989CA1263700A1 Frequency controlled resonant regulator
11/1989
11/29/1989EP0343238A1 Dc to ac inverter with neutral
11/29/1989CN2048643U Power saving inverter
11/28/1989US4884186 Power supply with reduced switching losses
11/28/1989US4884185 Pulse width modulation converter
11/28/1989US4884184 Control apparatus for cascaded converter circuit
11/28/1989US4884182 Current source power converting apparatus with overvoltage protection
11/28/1989US4884181 Method and arrangement for controlling a high voltage d-c transmission system
11/28/1989US4883977 Magnetic power converter
11/23/1989EP0342333A2 Power generator
11/21/1989US4882646 Protective grounding and referencing arrangement for high voltage bulk supply
11/21/1989US4882120 DC content control for an inverter
11/16/1989WO1989011204A1 The electronic stabilizer for a fluorescent lamp
11/16/1989DE3907940A1 Method for symmetrising the voltage sharing in power converters having multi-point connection
11/15/1989EP0341980A2 Method and circuit for voltage regulation of dc power sources including a generator having an exciter field coil
11/14/1989US4881159 Switching-relieved low-loss three-level inverter
11/09/1989DE3912941A1 Electrical power supply unit
11/09/1989DE3814757A1 DC voltage link having two capacitor units connected in series
11/08/1989EP0340800A1 Moving magnetic field electric power converter
11/08/1989CN2047465U 逆变器 Inverter
11/07/1989US4879641 Analog multiplex for sensing the magnitude and sense of the current through a h-bridge stage utilizing a single sensing resistance
11/07/1989US4879640 ROM driven PWM inverter
11/02/1989EP0340006A2 Non-resonance AC power source apparatus
11/02/1989EP0339963A2 Synchronous rectifier
11/02/1989EP0339381A1 Circuit arrangement for the generation of a dephased sine wave voltage
11/01/1989CN1005673B Component for three-phase bridge conversion circuit
10/1989
10/31/1989US4878208 Voltage-phase responsive, inverter disable circuit for system interconnection
10/31/1989US4878163 Pulse width modulated inverter with high-to-low frequency output converter
10/25/1989EP0338833A2 PWM inverter control unit
10/25/1989EP0338798A2 Pulse width modulation control unit of inverter
10/25/1989EP0338127A2 DC-AC converter
10/24/1989US4876634 Multi-pulse converter system
10/19/1989WO1989010025A1 Device for producing a magnetic field in an atomic absorption spectrometer
10/19/1989WO1989010024A1 Arrangement for controlled energy transfer for electrical supply, especially for reducing switching transients
10/19/1989DE3811446A1 Einrichtung zur erzeugung eines magnetfeldes in einem atomabsorptions-spektrometer Means for generating a magnetic field in an atomic absorption spectrometer
10/18/1989CN2046290U Simple rectiformer
10/18/1989CN1036487A Stepless ac-dc converter
10/17/1989US4875151 Two transistor full wave rectifier
10/17/1989US4875150 Parallel oscillatory circuit frequency converter with safety circuit
10/17/1989US4875148 Control for producing a low magnitude voltage at the output of a PWM inverter
10/12/1989DE3810431A1 Selbstgefuehrter gegentakt-wechselrichter Self-Guided balanced-inverter
10/11/1989EP0336019A1 Multilevel pulse width modulation method, and modulator using this method
10/10/1989US4873619 Method and apparatus for controlling a static converter at an asymetrical network
10/10/1989CA1262257A1 Method and system for operating power converter system
10/05/1989WO1989009510A1 Automatically guided push-pull inverter
10/04/1989EP0335169A1 Loss-free and low reactive power switch balance device for the semi-conductor switches of an inverter
10/04/1989EP0334886A1 Switch circuit.
10/04/1989CN2045556U Combined type dc high voltage source device
10/04/1989CN1036110A Method and apparatus for controlling voltage type convertor by p.w.m.
10/03/1989US4872102 D.C. to A.C. inverter having improved structure providing improved thermal dissipation
10/03/1989US4872101 Input and output responsive controlled rectifier
10/03/1989US4872100 High voltage DC to AC converter
09/1989
09/27/1989EP0334285A2 Capacitive coupled power supplies
09/27/1989EP0334100A2 Full bridge switching circuit
09/27/1989EP0333736A1 Procedure and apparatus for producing an a.c. voltage
09/27/1989EP0216821B1 Dc to dc converter
09/27/1989CN2045162U Automatic voltage-stabilizing voltage regulator
09/26/1989US4870558 Moving magnetic field electric power converter
09/26/1989US4870557 Simplified quasi-harmonic neutralized high power inverters
09/26/1989US4870556 Method and apparatus for controlling power converter
09/26/1989CA1261409A1 Variable output microwave oven
09/26/1989CA1261408A1 Power feed apparatus for load having reverse blocking characteristics
09/26/1989CA1260056A1 Current sense demodulator
09/26/1989CA1260055A1 Dc-ac converter for igniting and supplying a discharge lamp
09/21/1989WO1989008951A1 Electronic control circuits, electronically commutated motor systems, switching regulator power supplies, and methods
09/21/1989WO1989008944A1 Thyristor d.c.-a.c. converter with impressed direct current for impressing a load current
09/20/1989EP0333388A2 Power transfer circuit including a sympathetic resonator
09/20/1989CN1035744A Three-phase power cuttent transformer with neutral conductor
09/19/1989US4868728 Regulator system for a switching mode inverter generator
09/19/1989EP0314669A4 Switched capacitor induction motor drive.
09/13/1989EP0331849A2 A three phase electrical converter with a neutral
09/12/1989US4866592 Control system for an inverter apparatus
09/12/1989US4866591 Regulated transformer rectifier unit
09/12/1989US4866589 Voltage resonance type switching power source apparatus
09/12/1989US4866585 AC to DC solid state power supply using high frequency pulsed power switching
09/12/1989US4866344 High voltage power supply for a microwave electron tube
09/12/1989US4865425 Power source device for driving liquid crystal
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
09/08/1989WO1989008348A1 Inverter
09/08/1989WO1989008347A1 Voltage converter
09/06/1989EP0330755A2 Active filter device
09/05/1989US4864487 Control for three terminal power semiconductor devices
09/05/1989US4864485 Switched mode power supply with start-up control
09/05/1989US4864483 Static power conversion method and apparatus having essentially zero switching losses and clamped voltage levels
09/05/1989US4864482 Conversion circuit for limiting inrush current
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