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. 06, 1978
Filed:
Apr. 04, 1977
Applicant:
Inventor:
David Gurwicz, Gateshead, EN;
Assignee:
Sevcon Limited, Gateshead, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 57 ; 363124 ;
Abstract
In electrical circuit means having a load, an SCR pulse controller in series with the load and including a commutation capacitor, a transmission line connected to the load and pulse controller to supply the load from a D.C. source, and, a reservoir capacitor shunting the transmission line, the provision of control means which during interpulse periods of the controller by repeatedly discharging the reservoir capacitor limit the voltage to which the reservoir capacitor charges above the voltage of the source.