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:
Apr. 18, 2000
Filed:
Sep. 30, 1998
Applicant:
Inventor:
Gerhard Schneider, Mex, CH;
Assignee:
Logitech, Inc., Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330302 ; 330 51 ; 4552341 ;
Abstract
A low-voltage power amplifier system achieves high efficiency with a low power supply and a low input voltage. The low-voltage power amplifier system includes an enable input for switching the system between an ON state and an OFF state. The low-voltage power amplifier system can directly amplify the input signal and can achieve a frequency multiplication by an even factor. The low-voltage power amplifier system includes a biasing capacitor, a biasing resistor, a npn or pnp transistor, an output or resonant inductor, an output or resonant capacitor, and an optional stability resistor.