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. 25, 1977
Filed:
May. 16, 1975
Applicant:
Inventors:
Masayoshi Niimi, Toyota, JA;
Kinya Ishida, Kariya, JA;
Assignee:
Nippondenso Co., Ltd., Kariya, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318373 ;
Abstract
A DC motor control system is provided which is useful for plugging action in an electric-powered vehicle. In the system, a saturable transformer is employed as a means of increasing the reverse biasing time of a thyristor without increasing the capacity and voltage proof of a capacitor. As a result, an increased biasing time of the thyristor can be ensured.