Resonant high-voltage pulser for arcjet thruster ignition

Details Resonant high-voltage pulser for arcjet thruster ignition Resonant high-voltage pulser for arcjet thruster ignition

1992-10-02

1994-10-04

Paschall, Mark H.

Electric heating

Metal heating

By arc

21912157, 2191301, 21912152, 602031, B23K 906, B23K 9067, B23K 9073

Patent

active

053528611

ABSTRACT:
A starting circuit for providing a high-voltage pulse for igniting an arc in an arcjet thruster includes a resonant capacitor for storage of the energy required to generate the high-voltage pulse. The capacitor is resonantly switched with a small resonant inductor which, in turn, resonates with a high-voltage cable capacitance, generating a high-voltage pulse via a step-up transformer to the arcjet thruster for igniting the arc. Advantageously, the transformer turns ratio is minimized, thus minimizing the required transformer size and weight; and the high-voltage pulse is isolated from the arcjet power supply semiconductor devices.

REFERENCES:
patent: 4446560 (1984-05-01), Gabor
patent: 4493699 (1990-07-01), Thommes
patent: 4678888 (1987-07-01), Camacho et al.
patent: 4766724 (1988-08-01), Gruber
patent: 4916599 (1990-04-01), Traxler et al.

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