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:
Jun. 27, 1989
Filed:
Oct. 06, 1988
Applicant:
Inventor:
Ernest D Belanger, Bloomsbury, NJ (US);
Assignee:
OPT Industries, Inc., Phillipsburg, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
323299 ; 363143 ;
Abstract
A power supply circuit capable of operation with 115 V.A.C. (low range) or 230 V.A.C. (high range) line voltages, having a transformer with a primary winding arrangement which can be switched by a relay to accomodate either voltage range. A line voltage sensing circuit is coupled to a low voltage tap on the primary winding to sense the line voltage. When the line voltage is in the high range the voltage sensing circuit leaves the relay de-energized; and the sensing circuit energizes the relay to switch the primary winding to the appropriate configuration when the line voltage is in the low range.