PULSE GENERATOR Russian patent published in 2004 - IPC

FIELD: radio engineering; nondestructive inspections.

SUBSTANCE: proposed generator designed to produce positive and negative pulses at repetition frequency of 4 and 8 Hz with output signal voltage of minimum 1000 V at load current of minimum 100 mA has supply mains filter 1, autotransformer 2, isolating transformer 3, bridge rectifiers 4, 5 forming dc voltage supply, as well as verifying measurement unit 6 incorporating current sensor, unit of switching components built around transistors connected into bridge circuit, four-channel amplifier 8, optically-coupled isolator 9 for control circuits of unit 7, low-current power supply 10 for internal circuits, power converter 11 for feeding control circuits, transistor current check comparator 12 incorporated in unit 7, and pulse shaping counter assembled of master oscillator 13, follower 14, dividing counter 15, dividing flip-flops 16,17, control-signal shaping counter 18, and external load 19 with dummy load 20.

EFFECT: enhanced output signal voltage and load current.

2 cl, 2 dwg