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:
Mar. 06, 1984
Filed:
Oct. 07, 1981
Applicant:
Inventor:
Karl-Diether Nutz, Oedheim, DE;
Assignee:
Telefunken electronic GmbH, Heilbronn, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
3072 / ; 3072 / ; 307354 ;
Abstract
A zero voltage switch comprises two parallel connected current branches for taking over the D.C. current from a D.C. current source in half cycles of an A.C. voltage and a third current branch for blocking the other two current branches in zero axis crossing phases of the A.C. voltage so as to produce control pulses, a logic unit being provided for controlling the D.C. current source whereby an extremely small current is provided up to the beginning of a first control pulse, an increased current is provided during the control pulses and an intermediate current is provided between the control pulses.