The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 1987
Filed:
May. 30, 1985
Senichi Masuda, Tokyo, JP;
NGK Sparkplug Co., Ltd., , JP;
Abstract
A high-frequency high-voltage power supply in which a high-frequency high-voltage is generated with the aid of L-C oscillation without a high-frequency primary power supply or a high-frequency high-voltage converter. The negative output terminal of a first D.C. high-voltage power supply and the positive output terminal of a second D.C. high-voltage power supply are connected together and to one of the high-frequency high-voltage output terminals. Tank capacitors are connected between the positive and negative output terminals of the power supplies, respectively. One end of a first combination of a first thyristor and a first rectifier connected in anti-parallel relationship is connected to the positive output terminal of the first power supply with the anode of the first thyristor connected to the positive output terminal. One end of a second combination of a second thyristor and a second rectifier connected in anti-parallel relationship is connected to the negative output terminal of the second power supply with the cathode of the second thyristor connected to the negative output terminal. The other ends of the first and second combinations are connected to each other and to the other high-frequency high-voltage output terminal through a resonant inductance. A control device feeds high-frequency current pulses alternately to the gates of the thyristors to turn on the corresponding thyristors alternately.