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:
Dec. 01, 1987
Filed:
Oct. 15, 1986
Fumio Mizohata, Hyogo, JP;
Takao Kawabata, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A device for supplying a control terminal of a three-terminal controllable electric valve connected between positive and negative lines. The device includes a transformer having a primary and a secondary windings, a first capacitor connected to the primary winding, and a second capacitor connected with the secondary winding. The first capacitor is adapted to be charged when the electric valve is turned off and to discharge through the primary winding when the electric valve is turned on. The current induced in the secondary winding by the discharging current is supplied, as an operating current, to the circuit for driving the electric valve.