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:
Sep. 24, 1991
Filed:
Jul. 25, 1990
Applicant:
Inventor:
Chin Y Cheng, Cupertino, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 89 ; 363 87 ; 363129 ;
Abstract
A full wave rectification circuit for use with a three-phase input signal connected in a wye configuration for rectifying a line to neutral high input voltage is disclosed. The rectification circuit has two portions. A first portion generates a control signal which oscillates every 60.degree. and is switched in phase with one of the input signals. A second control signal, also oscillating in 60.degree., but completely out of phase with respect to the first oscillating signal is also generated. The two oscillating signals are used in a SCR switch configuration to switch the rectification circuit every 60.degree. thereby rectifying the peak voltage portion of each phase.