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:
Feb. 05, 1980
Filed:
Dec. 21, 1978
Applicant:
Inventors:
Richard Avicola, Addison, IL (US);
George J Tzakis, Chicago, IL (US);
Assignee:
Zenith Radio Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363127 ; 307260 ; 324119 ; 328 26 ; 330 69 ;
Abstract
A full-wave rectifier is disclosed for rectifying low level A.C. input signals. In the disclosed embodiment, the rectifier includes first and second differential amplifiers, each constructed of a pair of transistors. One transistor in each pair of transistors has a D.C. operating point offset from that of the other transistor so that the offset transistor conducts only on an excursion of a given polarity of a received A.C. input signal. Both output currents of the offset transistors are coupled to a load, across which a fully-rectified version of the A.C. input signal is developed.