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. 07, 1991
Filed:
Apr. 13, 1989
Applicant:
Inventor:
James R Anderson, Chicago, IL (US);
Assignee:
Beltone Electronics Corporation, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330 10 ; 330251 ;
Abstract
A high efficiency amplifier circuit includes first and second modulator circuits. The output waveform from the first modulator is modulated by the input electrical signal to be amplified. The output waveform from the second modulator is simultaneously modulated with an inverted representation of the input electrical signal. Outputs from the two modulator circuits are coupled to a push-pull output bridge. The load is coupled across first and second output terminals of the bridge such that a tri-level output representation of the amplified input signal is applied thereto.