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. 14, 1988
Filed:
Apr. 19, 1983
Applicant:
Inventor:
Yuichi Ide, Fuji, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J / ;
U.S. Cl.
CPC ...
307 31 ; 307 52 ;
Abstract
A power source circuit for base drive circuits in a transistor inverter comprises a high frequency transformer having a plurality of secondary windings respectively provided in association with the base drive circuits, a high frequency inverter connected to receive a DC power and supply a high frequency current to the primary of the high frequency transformer, and a plurality of converters respectively provided in association with the base drive circuits, and hence in association with the secondary windings, and connected to receive the outputs of the associated secondary windings and provide DC voltages for energizing the associated base drive circuits.