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. 25, 1995
Filed:
Feb. 03, 1993
Applicant:
Inventors:
Fritz Pohl, Hemhofen, DE;
Wilfried Jaehner, Nurnberg, DE;
Assignee:
Siemens Aktiengesellschaft, Munchen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ; H01H / ;
U.S. Cl.
CPC ...
361 94 ; 361102 ; 3611691 ; 361189 ; 361195 ;
Abstract
A hybrid switch is provided for switching a sink on and off. The hybrid switch contains a first semiconductor switch with a commutation switch. According to the present invention, a magnetic drive includes a first magnetic coil through which short-circuit current flows. A second semiconductor switch is connected in series with a second magnetic coil that series being connected in parallel to the series connection of the first magnetic coil and the sink. Short circuit flows through the first magnetic coil via the commutation switch which bridges at least the first semiconductor switch.