High frequency high voltage power supply preventing simultaneous

Details High frequency high voltage power supply preventing simultaneous High frequency high voltage power supply preventing simultaneous

1985-06-03

1986-12-09

LaRoche, Eugene R.

Oscillators

With magnetically controlled space discharge device

331186, 363 22, H03B 910

Patent

active

046282840

ABSTRACT:
A push-pull current-fed parallel resonant oscillator includes a parallel resonant LC tank circuit with one end coupled to one terminal of a DC current source via a serially connected first diode and first switching transistor and the other end of the tank circuit coupled to said one terminal via a serially connected second diode and second switching transistor. Respective capacitors (17, 21) shunt the series connections. The tank circuit inductor includes the primary of a transformer whose secondary is part of the transistor drive circuit. The circuit parameters are chosen to provide a duty cycle less than 50% and a high voltage gain of the AC tank voltage. The transistors are controlled to delay the turn-off time of the on-transistor thereby allowing a negative voltage to develop on the opposite capacitor which in turn delays turn-off of its parallel connected transistor so as to provide a dead-time (.DELTA.t.sub.2) during the switching interval in which both transistors are simultaneously off. The oscillator voltage gain is dependent on the circuit parameters and the load.

REFERENCES:
patent: 4175246 (1979-11-01), Feinberg et al.
patent: 4356431 (1982-10-01), Feinberg

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