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:
Feb. 17, 1998
Filed:
Mar. 29, 1995
Bernhard Wagner, Hamburg, DE;
Heinz Van Der Broeck, Zulpich, DE;
U.S. Philips Corporation, New York, NY (US);
Abstract
A circuit arrangement comprises an inverter with two parallel switching branches which are connected to a DC voltage source and each of which comprises two series-connected switching members, each of which comprises at least one switch and an anti-parallel connected diode. A switching member in one switching branch each time constitutes a diagonal pair in conjunction with a switching member in the other switching branch. A load with a given polarity is connectable to a DC voltage source via the diagonal pair. The voltage on the load temporarily becomes zero upon the change-over from one polarity to the other. A control circuit is provided for opening and closing the switches in a manner such that the switching members are successively switched on and off. The switching members are more uniformly stressed because the control circuit is constructed so that all of the switching members are successively switched on as the second switching member in their diagonal pair or all of the switching members are successively switched off as the second switching member in their diagonal pair.