Patent
Circuit for controlling the reverse current in a controlled rectifier
Dante E. Piccone,Istvan Somos +1 more
TLDR
In this article, a diode in parallel with a resistor is connected in circuit with the secondary winding of a re-actor to limit the magnitude of the reverse recovery current in the re-sistor.Abstract:
OF THE DISCLOSURE A circuit for controlling the reverse recovery current in a controlled rectifier. The primary winding of a satur-able reactor is connected in series with the controlled rectifier. A diode in parallel with a resistor is connected in circuit with the secondary winding of the saturable re-actor. The diode is poled to provide a low impedance in the reactor secondary when current flows through the primary winding and through the forward direction of the controlled rectifier flowing through the primary winding of the re-actor causes current in the secondary winding to flow in the reverse direction of the diode. The value of the re-sistor as reflected into the saturable reactor primary circuit limits the magnitude of the reverse recovery current.read more
Citations
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Patent
Efficient snubber for rectifier circuits
TL;DR: In this paper, a rectifier circuit with a saturable inductor (L3) in series with the rectifier (D4) blocks reverse recovery rectifier current and directs it to an inductor(L4), the energy stored in that inductor re-setting the saturated inductor to allow subsequent flow of current in the forward direction.
Patent
Power conversion apparatus
TL;DR: In this paper, a gate turn-off thyristor (GTO) is used to supply a gate power supply to the inverter or chopper at the turnoff of the GTO.
Patent
Protective circuit for diode switching device
TL;DR: In this article, an electrical circuit supplying a load from a voltage source includes a switching device and a diode, and is to be protected from recovery current caused by momentary reversal of the diode current during the operation of the switching device.
Patent
Single winding self saturation reactor current stabilizing control device and method
Xinlin Zhou,Yuegui He,Guangwen Wang,Xinmin Fu,Yanlin Ye,Junxia Xu,Hongjun Qing,Shaoxiong Wu,Hua Qi Shengni Baoliwang Baoni +8 more
TL;DR: In this paper, a steady flow control equipment and system of a single winding type self-saturation reactor in rectifier transformer selfsaturation this paper is presented. But the system is composed of smoothing reactor, control power source, offset power source and resistor, and a secondary winding.
Patent
Controlled diode recovery circuit
TL;DR: In this paper, a controlled diode recovery circuit with two semiconductor switches having anti-parallel diodes (either intrinsic to the switching device, or electrically connected to the switch) is described.
References
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Patent
High voltage converter apparatus having a plurality of serially connected controllable semiconductor devices
Kilgore Lee A,Harvey E Spindle +1 more
TL;DR: In this paper, a high voltage converter apparatus of the type having a plurality of serially connected, controllable semiconductor devices is described, which includes means for providing a substantially uniform voltage distribution across the devices, and for maintaining the uniform distribution while the devices are being switched.
Patent
Electronic inverter having precharging control affording high frequency switching at low output
TL;DR: In this paper, a single or plural phase solid state inverter having a half bridge for each phase and each half bridge including a pair of power semiconductor controlled rectifiers for switching, inductance-capacitance circuits for commutation of the power SCR''s, and a separate and electrically isolated precharging supply for the phase, is described.