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:
May. 01, 1990
Filed:
Feb. 06, 1989
Applicant:
Inventor:
Albert M Heyman, Bedford, MA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 17 ; 363 48 ; 363 98 ;
Abstract
A DC to DC converter is described having a bridge circuit coupled to the secondary windings of a transformer, the transformer supplying power to a capacitor and a constant current load source. The circuit parameters are chosen to provide a circuit that has quasi-resonant characteristics close to the frequency of the signal providing power to the transformer, but at a higher value. Other constraints on the circuit parameters are discussed. The resulting circuit provides an efficient transfer of energy from the source power supply to the load.