Patents for H02M 7 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output (46,189)
04/1982
04/27/1982CA1122652A1 Control of high-voltage d.c. transmission systems
04/21/1982EP0049839A2 Method of inducing dynamic firing-angle reliability in a line-conducted converter
04/20/1982US4326246 Circuit arrangement of an inverted current rectifier with self commutation
04/20/1982US4326134 Integrated rise-time regulated voltage generator systems
04/13/1982US4325115 Regulated DC power supply
04/13/1982US4325114 Gate controlling circuit for a thyristor converter
04/13/1982US4325112 Counter controlled pulse width modulated inverter
04/13/1982US4324950 Amplifier for driving electrostatic loudspeakers
04/06/1982US4323962 High efficiency rectifier with multiple outputs
04/06/1982US4323947 Electrostatic gun with improved diode-capacitor multiplier
03/1982
03/31/1982EP0048513A2 Switchable analogue signal inverter
03/30/1982US4322789 Static converter of symmetrical type
03/30/1982US4322788 Inverter circuit
03/30/1982US4322769 Electric switch operation monitoring circuitry
03/23/1982US4321663 Process of pulse duration modulation of a multi-phase converter
03/23/1982US4321662 Power supply circuit for electrical apparatus
03/16/1982US4320449 Control circuit
03/16/1982US4320446 Cockcroft-Walton voltage multiplying circuit for slim hole well logging tool
03/16/1982US4320445 Gate control circuit for thyristor converter
03/16/1982US4320331 Transistorized current controlled pulse width modulated inverter machine drive system
03/16/1982US4320308 Pulse duty control system
03/16/1982US4320273 Apparatus for heating an electrically conductive cooking utensil by magnetic induction
03/10/1982EP0047099A2 Full wave rectifier assembly
03/09/1982US4319317 D.C. Power supply
03/09/1982US4319164 Power factor compensating electroluminescent lamp DC/AC inverter
03/09/1982CA1119667A1 High voltage semiconductor converter protective apparatus
03/02/1982US4318171 Method of three commutation on rectifiers and of inverted electric current converters
03/02/1982US4318170 Power inverter oscillator circuit
03/02/1982US4318169 Suspension-mounted static electrical converter
03/02/1982US4318167 Electrical inverter with controllable output voltage
03/02/1982US4318165 Resonant-flyback power supply with filament winding for magnetron and the like loads
03/02/1982US4318164 High frequency switching circuit having preselected parameters to reduce power dissipation therein
02/1982
02/24/1982EP0046322A1 Electric-power supply
02/23/1982US4317166 Circuit arrangement for self-commutated inverters
02/23/1982US4317165 Inverter having improved efficiency and regulation
02/23/1982US4317075 Device for transforming an alternating current to a direct current, and application thereof to the charging of storage batteries
02/23/1982US4317052 Apparatus for converting an A.C. input signal to a rectified and smoothed D.C. signal
02/23/1982CA1118837A1 Converter including oscillatory circuit
02/16/1982US4316243 Power FET inverter drive circuit
02/16/1982US4316089 Method of stabilizing operation of a hybrid spark chamber
02/16/1982EP0029067A4 A converter circuit for storing a predetermined quantity of energy.
02/16/1982CA1118511A1 Control logic for an inverter ripple controlled power system
02/16/1982CA1118490A1 Commutation failure detection and restoration for scr frequency converters
02/10/1982EP0045444A2 Rectifier device
02/09/1982US4315306 High-voltage generating device
02/09/1982US4315305 Controlled D-C power supply
02/09/1982US4315304 Starting circuit for a high frequency magnetic amplifier power supply
02/02/1982US4314326 Rectifying circuit with zero correction
02/02/1982US4314322 Three phase regulated supply with ripple current regulation
02/02/1982US4314191 Protective system for inverter circuit used in driving AC motors
02/02/1982US4314189 Device for controlling the commutating angle of an inverter device
02/02/1982US4314170 Hand power tool control unit
02/02/1982CA1117597A1 Apparatus for detecting diode failures in multiple diode rectifier bridges
01/1982
01/26/1982US4313060 Uninterruptible power supply with load regulation of standby voltage source
01/26/1982CA1117183A1 High voltage direct current transmission
01/21/1982WO1982000225A1 Electric power supply system
01/19/1982US4312031 Apparatus for controlling current type inverters
01/19/1982US4312030 Switching waveform synthesiser for polyphase static inverters
01/19/1982US4311955 Phase control device which compensates for input variations
01/19/1982CA1116704A1 Precision rectifier circuit
01/19/1982CA1116678A1 Rectifier assembly for a synchronous machine
01/13/1982EP0043615A1 High-voltage transformer
01/12/1982CA1116233A1 Electrical convertor
01/07/1982WO1982000070A1 Discharging circuit for rectifying power source
01/06/1982EP0043146A1 Process for putting into operation one of several rectifier groups of a high-voltage direct-current transmission system connected in series
01/06/1982EP0043026A1 Method and device for the control, during the starting phase, of a load-controlled oscillatory-circuit inverter
01/05/1982US4309751 Method and apparatus for controlling current type inverters
01/05/1982US4309750 Inverter device
01/05/1982US4309749 Circuit having improved firing angle symmetry for ignition pulses in the control of a multipulse rectifier
01/05/1982US4309747 High current, high voltage multiplication apparatus
01/05/1982US4309735 Protective circuits for converter-supplied D.C. motor
01/05/1982US4309622 Portable electric automotive engine cranking unit
01/05/1982CA1115774A1 Method and apparatus for control of static valve converter
12/1981
12/30/1981EP0042512A1 Current switch driving circuitry
12/30/1981EP0042382A1 Apparatus for providing multiphase current
12/29/1981US4308578 Inverter device
12/29/1981US4308577 Base drive circuit
12/29/1981US4308575 Power source system
12/24/1981WO1981003731A1 Lighting system
12/24/1981WO1981003723A1 Dc to ac inverter
12/24/1981WO1981003722A1 Transistor or thyristor inverter with energy recovery
12/23/1981EP0042235A1 DC to AC inverter
12/22/1981US4307437 Semiconductor rectifier assembly, particularly for combination with an automotive-type alternator, and method of manufacture
12/22/1981US4307353 Bias control for high efficiency inverter circuit
12/22/1981US4307305 Precision rectifier circuits
12/15/1981US4306283 Power factor improving apparatus for power converter
12/15/1981US4306161 Simple method of switching an AC line
12/09/1981EP0041360A2 Resonant power inverter and method of operation thereof
12/08/1981US4305121 Rectifier apparatus with improved heat sink and diode mounting
12/01/1981US4303935 Semiconductor apparatus with electrically insulated heat sink
12/01/1981CA1113597A1 Static electrical convertor
11/1981
11/26/1981WO1981003400A1 A four quadrant ac and dc to ac and dc converter with two or more independently controlled loads
11/24/1981US4302807 Controlled current base drive circuit
11/24/1981US4302717 Power supply with increased dynamic range
11/24/1981US4302713 Fixed gating sequence apparatus and method for an inverter
11/24/1981CA1113153A1 Temperature control apparatus
11/17/1981US4301500 Gate control system of the inverter using gate-turn-off thyristors
11/17/1981US4301465 Cover mounted multi-columnar semiconductor assembly
11/17/1981US4301415 Programmable multiple phase AC power supply
11/17/1981US4301398 Method and apparatus for controlling a resonant power module