Patent RU-94021769-A (RU)
Inventor: GREKHOV I V
IPC: H03K3/53
Filed: 1994-06-10
Abstract: FIELD: heavy-current semiconductor engineering; power supplies for high-power lasers. SUBSTANCE: magnetic pulse generator has switching circuit set up of series-connected first diode, first capacitor, first saturable reactor, and reversible dinistor, input circuit incorporating DC voltage supply, first thyristor, second saturable reactor, and second diode, output circuit built up of series-connected second and third capacitors, and third saturable reactor, and also load circuit connected in parallel with output circuit, control unit, third and fourth diodes, resistor, two transformers, current generator, and trigger unit incorporating fifth diode, circuit of series-connected fourth capacitor, second thyristor, first inductive component, and fifth capacitor, second thyristor anode is connected to reversible dinistor anode, first lead of first saturable reactor, and to first lead of fourth capacitor whose second lead is connected to first anode of fifth capacitor, reversible dinistor cathode, and to starting lead of first transformer primary winding; second capacitor is connected in parallel with first transformer secondary winding and, through its first lead, to first lead of third capacitor; first lead of first capacitor is connected to cathode of first diode and its second lead, to second lead of first saturable reactor; anode of first diode is connected to primary winding lead of first transformer; first output of control unit is connected to gate electrode of first thyristor and second output, to gate electrode of second thyristor. Novelty is that generator is provided, in addition, with second and third inductive components, current sensor, third thyristor, second DC voltage supply, and sixth capacitor in its input circuit; third thyristor is connected through its cathode to anode of second diode, to cathode of first thyristor, and to first lead of second inductive component; sixth capacitor is inserted between second lead of second inductive component and first lead of second saturable reactor whose second lead is connected to cathode of second diode and to third thyristor anode; second DC voltage supply is connected in parallel with sixth capacitor and its positive lead is connected to first lead of second saturable reactor; current sensor is connected between negative lead of first DC voltage supply and second lead of first inductive component and its output is connected to gate electrode and cathode of third thyristor; first lead of third inductive component is connected to anodes of first thyristor and third diode; second lead of third inductive component is connected to positive lead of first DC voltage supply, to first lead of resistor, and to first lead of first capacitor whose second lead is connected to cathodes of third and fourth diodes; second lead of resistor is connected to anode of fourth diode; fourth inductive component is inserted between cathode of reversible dinistor and cathode of fifth diode whose anode is connected to second lead of fifth capacitor. Current generator is connected in parallel to primary winding of second transformer and its positive lead is connected to starting leads of primary winding; starting lead of second transformer secondary winding is connected to starting lead of first transformer secondary winding and to second lead of second capacitor; finishing lead of second transformer secondary winding is connected to second lead of third capacitor; both transformers are designed as saturable transformers. EFFECT: provision for regulation of output voltage of magnetic pulse generator and improved reliability of its operation.