HEAVY-PULSE GENERATOR Russian patent published in 1999 - IPC

FIELD: power supply for laser equipment, medical devices, power supply, preferably for conversion of alternating current mains voltage to single pulses which frequency is multiple with respect to mains frequency. SUBSTANCE: device has rectifying bridge, clipping resistor, which resistance conforms to condition of clipping charging current of accumulation capacitor for quarter of mains voltage half-wave. Its inductance conforms to condition of protection against high harmonic frequencies caused by excitation of oscillator circuit, which comprises accumulation capacitor, which is connected to dipole winding and cathode of isolation diode. Second terminal of dipole winding is connected to anode of switching transistor, which cathode is connected to another terminal of accumulation capacitor and negative terminal of rectifying bridge. This provides common line for control pulse generator, which is designed using two-base diode which is synchronously controlled through two electrodes according initial conditions provided by circuits of threshold stabilization and clock cycle. Base 2 is supplied with voltage which provides threshold through accumulating resistor which is connected to common point of cathode of stabilizing diode of circuit for stabilization of threshold voltage and its current-clipping resistor, which second terminal is connected to cathode of isolation diode and clock pulses with current-clipping resistor, circuit for stabilization of increment rate of threshold voltage. Second terminal of latter circuit is connected to anode of isolation diode which protects clock pulses from clearing by voltage of accumulation capacitor charge. Emitter is supplied with voltage which is generated by control capacitor through resistors which define working frequency, and are switched by setting switch, which is connected to middle point of divider, which one terminal is connected to common line and anode of stabilizing diode of threshold voltage increment rate stabilization circuit. Second terminal is connected to its cathode and common point of base 2 with current-clipping resistor of threshold voltage increment rate stabilization circuit. Base 1 which is connected to common line through matching resistor serves as output of control pulse generator and is connected to control electrode of switching thyristor, which drives oscillator circuit in order to convert power which is accumulated in capacitor into actuating device work through its winding. EFFECT: increased efficiency. 1 dwg