Title:
SWITCHING AMPLIFIER AND MODULATING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2008/138163
Kind Code:
A1
Abstract:
A switching amplifier has a dual-comparer pulse width modulation and a multi-path
feedback structure, each loop circuit only need an integral amplifier (43,44)
of dual-terminal output, at least two feedback loop circuits are set between
the integral amplifier (43,44) and a H bridge circuit (16), besides this, there
is no need other low pass filter used in the feedback path.
Inventors:
CHENG JIN (CN)
Application Number:
PCT/CN2007/001522
Publication Date:
November 20, 2008
Filing Date:
May 09, 2007
Export Citation:
Assignee:
APEXONE MICROELECTRONICS LTD (CN)
CHENG JIN (CN)
CHENG JIN (CN)
International Classes:
H03F3/217
Foreign References:
| US20060226904A1 | 2006-10-12 | |||
| CN1762094A | 2006-04-19 | |||
| CN1642001A | 2005-07-20 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (Great Eagle Centre23 Harbour Road,Wanchai, Hong Kong, CN)
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