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:
Aug. 25, 1981
Filed:
Jul. 18, 1979
Applicant:
Inventor:
Robert B Molyneux-Berry, Danbury, GB;
Assignee:
The Marconi Company Limited, Chelmsford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 55 ;
Abstract
Because inverter circuits utilize switches which can be adversely affected by signal transients or excessive voltages, it is usual to provide a protective circuit consisting of a capacitor and a resistor. At high frequencies and high powers the energy dissipated in the resistor can be excessive. The present invention provides an additional switch, which is arranged to discharge the capacitor in a lossless manner and to return the energy stored by the capacitor to the power supply by making the discharge path part of a resonant circuit, loss can be reduced to negligible levels.