Wan-Tim Chan
City University of Hong Kong
5 Papers
1 Citations
Wan-Tim Chan is an academic researcher from City University of Hong Kong. The author has contributed to research in topics: Buck converter & Capacitor. The author has an hindex of 2, co-authored 5 publications.
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Papers
Modeling and Experimental Assessment of the EMI Characteristics of Switching Converters With Power Semiconductor Filters
John Wing-To Fan,Jeff Po-Wa Chow,Wan-Tim Chan,Kun Zhang,Akhil Relekar,Ka-Wai Ho,Chung-Pui Tung,Ke-Wei Wang,Henry Shu-Hung Chung +8 more
TL;DR: The conducted electromagnetic interference (EMI) performance of the converters with the PSF is reported and a fast current regulation circuit is proposed to tightly regulate the current through the SPD to suppress differential-mode EMI.
17
1-kW Boost-type PFC Using a Low-Voltage Series Pass Module for Input Current Shaping
Chung-Pui Tung,John Wing-To Fan,Jeff Po-Wa Chow,Akhil Relekar,Wan-Tim Chan,Ka-Wai Ho,Ke-Wei Wang,Henry Shu-Hung Chung +7 more
TL;DR: In this article, a power factor corrector extended from a previously proposed boost-type structure with power semiconductor filter (PSF) is presented, which is based on using a series pass device (SPD) to profile the input current and regulate the output voltage, and an input capacitor to circulate the ripple current generated by the boost converter.
6
Flyback PFC with a Series Pass Module in Cascode Structure for Input Current Shaping
Chung-Pui Tung,Ke-Wei Wang,Ka-Wai Ho,Jeff Po-Wa Chow,John Wing-To Fan,Wan-Tim Chan,Henry Shu-Hung Chung +6 more
- 01 Sep 2018
TL;DR: A series-pass module (SPM) for shaping the input current waveform of flyback power factor corrector (PFC) to be in the same phase and waveshape as the supply voltage is presented in this article.
2
A kW Power Factor Corrector Using Low-voltage Current Device For Input Current Shaping
Chung-Pui Tung,John Wing-To Fan,Jeff Po-Wa Chow,Akhil Relekar,Wan-Tim Chan,Ka-Wai Ho,Ke-Wei Wang,Henry Shu-Hung Chung +7 more
- 01 Sep 2019
TL;DR: In this article, a power factor corrector (PFC) extended from a previously-proposed boost-type structure with power semiconductor filter (PSF) is presented, which is based on using a series pass device (SPD) to profile the input current and regulate the output voltage, and an input capacitor to circulate the ripple current generated by the boost converter.
Flyback PFC With a Series-Pass Module in Cascode Structure for Input Current Shaping
Chung-Pui Tung,Ke-Wei Wang,Ka-Wai Ho,Jeff Po-Wa Chow,John Wing-To Fan,Wan-Tim Chan,Henry Shu-Hung Chung +6 more
TL;DR: A series-pass module (SPM) for shaping the input current waveform of flyback power factor corrector (PFC) to be in the same phase and waveshape as the supply voltage is presented to make the inputCurrent exhibit lower total harmonic distortion (THD) than that with a single series- pass device (SPD).