Patents for H02M 1 - Details of apparatus for conversion (33,954)
01/1987
01/14/1987EP0208088A1 Device for producing a three-phase voltage system with a neutral cable to be loaded
01/08/1987DE3523666A1 Circuit arrangement for the floating switching-on of a GTO thyristor or bipolar transistor using an impressed control current
01/08/1987DE3523108A1 DC/DC voltage converter
01/08/1987DE3522872A1 Digital method and device for synchronous control of a mains-commutated converter
01/06/1987US4635181 Bridge circuit for reduced switching losses
01/06/1987US4635177 Control for a neutral point clamped PWM inverter
01/06/1987CA1216328A1 Peak charging circuit providing for improved loop gain and common mode noise rejection
01/02/1987DE3521983A1 Discharging circuit without significant losses for symmetrically arranged electronic switches in branched pairs
12/1986
12/30/1986US4633381 Inverter shoot-through protection circuit
12/30/1986US4633380 Applied voltage detecting device for electric power convertor
12/30/1986EP0205477A1 Control for a neutral point clamped pwm inverter
12/30/1986CA1216023A1 Phase detecting apparatus
12/23/1986US4631470 Current surge limited power supply
12/18/1986WO1986007510A1 Static switch circuit or device for the protected supply of a load, and its line
12/17/1986CN86102980A Control apparatus for alternating elevator
12/16/1986US4630188 Multi-zone ramp system for digital pulse generator and large scale integrated chip embodying the same
12/16/1986US4629971 Switch mode converter and improved primary switch drive therefor
12/16/1986US4629852 Regulator circuit for control of heat output of a heating element
12/09/1986US4628460 Microprocessor controlled phase shifter
12/09/1986US4628430 Switching power-supply unit with improved start-up behavior
12/02/1986US4626981 Dual voltage converter circuit
12/02/1986US4626980 Power bridge having a non-dissipative snubber circuit
12/02/1986US4626976 Switch mode power supply having magnetically controlled output
12/02/1986US4626956 Electromagnetic feeder drive control apparatus
12/02/1986US4626768 High-speed feedback circuit with ungrounded load
12/02/1986US4626766 Circuit arrangement for feeding electrical users
11/1986
11/25/1986US4625271 Soft-start circuit for a power converter
11/25/1986US4625270 RFI suppression technique for switching circuits
11/25/1986US4625161 Control pulse generator for thyristors supplying a reactive power regulating inductor in an electrical power network
11/20/1986EP0201707A1 Autoresonant Piezoelectric transformer signal coupler
11/20/1986EP0201700A1 Control for on/off switchable power semiconductor components
11/18/1986US4623948 Switching aid device
11/18/1986US4623830 Alternating-current machine drive
11/12/1986CN85103691A Trigger circuit of silicon controlling rectifier
11/11/1986US4622474 Alternating-current filter circuit arrangement
11/05/1986CN86102665A Control system for an electric locomotive having ac to dc converters
11/04/1986US4621314 Thyristor converter control apparatus including differentiation arrangement to prevent abnormal operation
10/1986
10/29/1986EP0199315A2 Control system for an electric locomotive having AC to DC converters
10/28/1986US4620263 Container for accommodating a control device
10/28/1986CA1213321A1 Transistor inverter circuit
10/15/1986EP0197445A1 Method and device to determine the phase position of a multiphase measure value system
10/14/1986US4617533 Circuit arrangement for a blocking oscillator switching power unit
10/14/1986CA1212720A1 Microprocessor controlled phase shifter
09/1986
09/30/1986US4614873 Signal isolator with optical fiber grounding means
09/25/1986WO1986005636A1 Electrical power source
09/24/1986EP0195713A1 Switching aid device for a switch and free-wheel diode
09/24/1986CN86101356A Switching power supply
09/23/1986US4613933 Digital drive system for pulse width modulated power control
09/23/1986US4613795 Driver circuit controller for AC to AC converters
09/23/1986CA1211788A1 Power system and a power generation method
09/16/1986US4612610 Power supply circuit utilizing transformer winding voltage integration for indirect primary current sensing
09/16/1986US4612561 Parallel-connected gate turn-off thyristors
09/16/1986US4612451 Drive circuit for driving a transistor
09/10/1986EP0194075A2 Switching power supply
09/03/1986EP0193436A1 Control circuit for a switching power supply with a progressive start
09/03/1986EP0193435A1 Control circuit for a switching power supply with an automatic start
09/02/1986US4609980 Switching power supply with transistor drive circuit
08/1986
08/28/1986WO1986005040A1 Inverter shoot-through protection circuit
08/26/1986US4608500 Electric power unit
08/26/1986US4608499 Power system and power generation method
08/26/1986US4608498 Load control circuit with different input voltages
08/20/1986CN85202197U Super multi-box type isolated power transformation-electric filter
08/19/1986CA1210124A1 Electronic circuit controlling a multiple operation apparatus fitted with an electromagnetic mechanism
08/14/1986WO1986004751A1 A.c. power supply systems
08/12/1986US4606058 Process for generating control signals in a predeterminable phase position, circuit arrangement for effectuating the process and utilization of the circuit arrangement
08/12/1986US4605997 Switch mode converter and improved deadband control therefor
07/1986
07/17/1986WO1986004188A1 Transistor inverter interlock circuit
07/16/1986EP0187282A2 Digital drive system for pulse width modulated power control
07/15/1986US4600917 Gate-turn-off thyristor failure detecting circuit
07/08/1986US4599685 Control circuit for power converter apparatus
07/08/1986CA1207383A1 Boost power supply having power factor correction circuit
07/02/1986EP0186590A1 Control device for a phase regulator
07/02/1986EP0186524A2 Line filter
07/01/1986US4598353 Thyristor firing circuit for determining phase angle
07/01/1986US4598351 Soft-start control for a push-pull converter-regulator with a flux balancing circuit
06/1986
06/25/1986EP0185181A1 Gate turn-off power thyristor having an anode-cathode circuitry with a low inductance
06/24/1986US4597039 Switched capacitor induction motor drive
06/17/1986US4595972 On/off power detector
06/17/1986CA1206200A1 False recovery detection circuit for parallel or serial strings of thyristors
06/17/1986CA1206198A1 High-power, high-frequency-inverter system with combined analog control
06/10/1986US4594650 Inverter device
06/10/1986US4594648 Wide frequency band coupling network for an active ripple and noise filter
06/03/1986US4593348 Device for the generation of regulated and/or adjustable direct voltages or direct currents
05/1986
05/27/1986US4591963 Technique for reducing line current harmonics at input to power supply acting as nonlinear load
05/27/1986US4591734 Integratable circuit for controlling turn-off voltage rate-of-change of non-regenerative voltage-controlled switching semiconductor devices
05/27/1986CA1205132A1 Control system for controlling an scr network to regulate three-phase a-c power flow
05/22/1986WO1986003073A1 Control for a neutral point clamped pwm inverter
05/20/1986US4590546 Variable input voltage regulator circuit
05/07/1986EP0180275A1 Circuit comprising series-connected semiconductor elements
05/06/1986US4587438 Turn-off circuit for gate turn-off thyristor
04/1986
04/29/1986US4586121 Control signal generator arrangement for semiconductor switches
04/29/1986US4586120 Current limit shutdown circuit with time delay
04/22/1986US4584499 Autoresonant piezoelectric transformer signal coupler
04/15/1986US4583158 High voltage thyristor valve
04/09/1986EP0176800A1 Method and apparatus for controlling the switching condition of a gate turn-off thyristor
04/01/1986US4580205 Current-type GTO inverter using GTO in its surge voltage clamping circuit
04/01/1986US4580112 Active line filter for power line conducted interference
03/1986
03/25/1986US4578734 Electronic circuit controlling a multiple operation apparatus fitted with an electromagnetic mechanism
03/25/1986US4578632 Intergratable load voltage sampling circuit for R.M.S. load average voltage control apparatus
03/25/1986US4578631 High-speed feedback circuit