| 摘要 |
PCT No. PCT/GB86/00561 Sec. 371 Date May 18, 1987 Sec. 102(e) Date May 18, 1987 PCT Filed Sep. 19, 1986 PCT Pub. No. WO87/01882 PCT Pub. Date Mar. 26, 1987.A resonant power circuit which supplies pulsed power to a load, such as a pulsed laser, from a d.c. supply by cyclically charging a capacitor. The capacitor is discharged through the load on closure of a switch which should then open to allow the capacitor to re-charge. Occasionally the switch fails to open and the circuit of the invention then develops and applies a reverse voltage to the switch to force it to become an open circuit.
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