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:
Apr. 17, 1984
Filed:
May. 17, 1982
Applicant:
Inventor:
Masami Gokita, Tokyo, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
307140 ; 3072 / ; 323325 ;
Abstract
In a switch device for connecting an AC power source to a load, a phase detector circuit detects the phase of a peak-volt point of the AC voltage. In response to the phase detector circuit, a trigger circuit triggers a semiconductor switching element into conduction at the peak volt point of the AC voltage to supply the AC voltage to the load. The surge current is significantly reduced even if the load is an inductive load.
Gokita, Masami. (1984). Switch device for connecting ac power source to load (U.S. Patent No. 4443712). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4443712
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile