Laser gyro high voltage start module and high voltage pulse gene

Details Laser gyro high voltage start module and high voltage pulse gene Laser gyro high voltage start module and high voltage pulse gene

1992-08-27

1994-03-29

Epps, Georgia Y.

Coherent light generators

Particular resonant cavity

Folded cavity

372 38, 356350, H01S 3083, G01C 1964

Patent

active

052992110

ABSTRACT:
A high voltage start circuit includes a high voltage start module and high voltage pulse generator apparatus. The high voltage pulse generator amplifies a five volt pulse at 60 KHz duty cycle to an output of 280 volts pulses at approximately 50% duty cycle. A PN junction high voltage diode with a high forward voltage drop and a resistor divider drives and holds a first transistor out of saturation. A low voltage diode creates a dead band such that two high voltage start module transistors are never on at the same time. The high voltage module contains two high voltage blocking diodes which protect the laser gyro active current control circuitry during start up. Two small ballast resistors and a parallel 10 times voltage multiplier generate at least a 2500 VDC output. The high voltage start circuit is contained within a laser gyro housing and is configured to have a volume less than the volume of the ring laser gyro block.

REFERENCES:
patent: 4282495 (1981-08-01), Ljung
patent: 4641970 (1987-02-01), Gustafson et al.
patent: 4740085 (1988-04-01), Lim
patent: 4751718 (1988-06-01), Hanse et al.
patent: 5088824 (1992-02-01), Killpatrick et al.
patent: 5100235 (1992-03-01), Priddy et al.

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