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:
Jun. 29, 1976
Filed:
Dec. 12, 1974
Applicant:
Inventors:
Hiroshi Mitsuoka, Amagasaki, JA;
Masayoshi Kumano, Amagasaki, JA;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3072 / ; 307305 ; 307311 ; 323 / ;
Abstract
A capacitor charged with a voltage across anode and cathode of a thyristor after the voltage division and rectification is connected across gate and cathode of the thyristor through a switch while a diode with or without a series reactor is connected across the anode and gate through the same switch. Alternatively a primary winding of an insulating transformer may be connected across the anode and cathode and its secondary winding is operative to charge the capacitor through diodes. The switch is preferably a light switch.