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. 08, 2012
Filed:
Oct. 18, 2006
Applicant:
Hao Zhu, Shanghai, CN;
Inventor:
Hao Zhu, Shanghai, CN;
Assignee:
Apexone Microelectronics Ltd., Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/217 (2006.01);
U.S. Cl.
CPC ...
Abstract
A switching amplifier is disclosed and comprises: a power supply (Vcc); input circuits (Va, Vb); switch transistors (M, M) connected with each other in series; driving circuits (I, I) coupled with the switch transistors (M, M) respectively; a bootstrap circuit for supplying operation voltage to the driving circuit (I). The switching amplifier also comprises: leakage circuits (M, M) or auxiliary switching circuits (M', M′). With the switching amplifier of the invention, the fluctuation of the bootstrap potential can be suppressed and the signal distortion of the switching amplifier can be prevented.