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. 11, 1982
Filed:
Oct. 14, 1980
Applicant:
Inventor:
Shingo Kamiya, Hamamatsu, JP;
Assignee:
Nippon Gakki Seizo Kabushiki Kaisha, Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330297 ; 330267 ;
Abstract
An amplifier with power supply switching is arranged so that the levels of the power supply voltages to be supplied to the amplifying elements of the output stage are switched over in accordance with the level and the rise time of a signal corresponding to an input signal of the amplifier, thereby, to enhance the power efficiency and to prevent an increase of distortion, as well as to reduce switching noises which tend to occur during the switching of the power supply voltages.