下載電子全文宣告This thesis is authorized to indicate in-campus access only
You can not download at the moment.
Your IP address is 184.108.40.206
The defense date of the thesis is 2005-07-13
The current date is 2019-03-20
This thesis will be accessible at off-campus not accessible
URN etd-0713105-150914 Statistics This thesis had been viewed 3008 times. Download 14 times. Author Yi-feng Hsia Author's Email Address No Public. Department Electrical Engineering Year 2004 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 76 Title A STUDY OF SINGLE PHASE AC/DC BOOST PRE-REGULATOR WITH POWER FACTOR CORRECTION Keyword Power Factor Correction(PFC) Interleaved Interleaved Power Factor Correction(PFC) Abstract The purpose of this thesis is to develop a single phase AC/DC boost type pre-regulator, the output power is 350 watts and output DC voltage is 250 volts. It has power factor correction function（PFC）, stable output DC voltage, low input current ripple and can have the high power factor around 0.88 ~ 0.97 under 3% ~ 10% loads. The system consists of the single phase full wave diode bridge rectifier, the interleaved boost type pre-regulator and output filter.
The interleaved boost pre-regulator is based on inverse sinusoidal pulse width modulation that collocates with interleaving control method of duty cycle. It can reduce phase difference between the line voltage and line current, shape the line current to sinusoidal waveform, and decrease ripple of input current. By using switching frequency control, the switching frequency of pre-regulator will change with different load ranges and get high benefit of power factor.
Finally, a single chip microprocessor Intel 87c196MC is used in this system and an experimental hardware scheme and software algorithm is established by the proposed principle. The experimental results prove the proposed structure to achieve performance as expected.
Advisor Committee Ching-yuan Lee - advisor
Ming-yan Guo - co-chair
Wen-chen Chu - co-chair
Files Date of Defense 2005-06-28 Date of Submission 2005-07-13