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Title page for etd-0831109-180911


URN etd-0831109-180911 Statistics This thesis had been viewed 2112 times. Download 10 times.
Author Chien-Chung Huang
Author's Email Address No Public.
Department Electrical Engineering
Year 2008 Semester 2
Degree Master Type of Document Master's Thesis
Language English Page Count 69
Title BIPOLAR SYNCHRONOUS DC-DC BUCK CONVERTER DESIGN
Keyword
  • synchronous step-down converter
  • synchronous step-down converter
  • Abstract A DC-DC synchronous buck converter with soft start has been designed and simulated with 40V bipolar process. The overall circuit is designed based on a voltage-mode PWM controlled converter. The input voltage range is from +4.3V to +20V. Simulation results show that this converter with on-chip current sensor can operate at 200 kHz. The current limit is implemented by sensing the voltage drop across the bottom N-MOSFET RDS (ON). The soft start function is used to prevent large inrush currents upon power-up. The internal thermal protection circuit can protect the system when the temperatures exceed 150°C.
    Advisor Committee
  • Shu-Chuan Huang - advisor
  • Jie-Cherng Liu - co-chair
  • Wan-Rone Liou - co-chair
  • Files indicate in-campus access at one year and off-campus not accessible
    Date of Defense 2009-07-31 Date of Submission 2009-09-01


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