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:
Jan. 12, 1988
Filed:
Oct. 24, 1986
Isamu Hanada, Osaka, JP;
Pierre Savary, Osaka, JP;
Satoshi Nagai, Kobe, JP;
Munetomo Sagawa, Osaka, JP;
Kyoei Densoku Co., Ltd, Osaka, JP;
Abstract
The invention provides a novel high-frequency power-supply output control device comprising circuitry for activating push-and-pull operations of a pair of arms of semiconductive inverters comprised of semiconductors being connected to each other in a bridge configuration, in which each arm is alternately turned ON and OFF for converting DC current into high-frequency power, a pair of phase-synchronizing circuits which are respectively installed to these two arms for setting operative frequency of a pair of these arm-forming semiconductors at a specific value, and a phase-difference varying circuit capable of varying the phase difference of these phase-synchronizing circuits before eventually controlling the output high-frequency power ranging from zero to the maximum value being set.