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. 07, 1990
Filed:
Aug. 31, 1988
Applicant:
Inventors:
Robert A Black, Jr, Brooklyn Park, MN (US);
Arlon D Kompelien, Cross Lake, MN (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ; H01J / ;
U.S. Cl.
CPC ...
315205 ; 315226 ; 315248 ; 315D / ;
Abstract
A circuit for cutting a 'notch' in an alternating current supply waveform with the minimization of dissipated power comprising a pair of GTO's so poled to conduct current therethrough and also through a pair of power consuming diodes when the switches are 'on' during alternate half cycles, the switches being turned 'off' at the start of the 'notches', and the current is resumed thereafter by a pair of oppositely poled SCR's which are turned 'on' and which bypass power diodes so as to conserve power.