Title page for etd-0822105-020221


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URN etd-0822105-020221
Author Yao-Jen Chuang
Author's Email Address No Public.
Statistics This thesis had been viewed 5561 times. Download 38 times.
Department Electrical Engineering
Year 2004
Semester 2
Degree Master
Type of Document
Language English
Title A Class D Power Amplifier with Passive RC Feedback
Date of Defense 2005-06-28
Page Count 55
Keyword
  • total harmonic distortion
  • power efficiency
  • class d
  • thd
  • power amplifier
  • Abstract The primary advantage of Class D amplifier is high power efficiency (typically >90%). However, there are two problems in open-loop Class D design: Total Harmonic Distortion (THD) and output dc static current (the power efficiency will be degraded). The THD is rising from non-ideal sample carrier in Pulse Width Modulation circuit, and output dc static current is due to the non-match transfer characteristic in output stage. For designer to have such problems will be a large load. To improve these two problems, we proposed a Class D power amplifier with passive feedback design. Simulation and Measurement results show that the power efficiency is higher than 90% at 250Hz ~ 4KHz. Furthermore, the THD is less than 0.24% at 4 KHz in both simulation and experimental results.
    Advisory Committee
  • Yao-Tsung Tsai - chair
  • Shiang-Hwua Yu - co-chair
  • Jyi-Tsong Lin - co-chair
  • Chia-Hsiung Kao - advisor
  • Files
  • etd-0822105-020221.pdf
  • indicate in-campus access in a year and off_campus not accessible
    Date of Submission 2005-08-22

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