TY - GEN
T1 - Control of active power factor corrector using a single current sensor
AU - Chung, Henry S. H.
AU - Hui, S. Y. R.
AU - Qiu, D. Y.
PY - 2000/6
Y1 - 2000/6
N2 - This paper presents the realization of a boost-type active power factor corrector (APFC) using a single current sensor to sense the inductor current for input current shaping and output voltage regulation. Neither input voltage nor output voltage sensing is needed. The sensed inductor current is used for two main functions. The first one is for comparing with a sawtooth signal in order to shape the input current waveform. The second one is for determining the input and output voltages by processing the rates of change of the inductor current when the main switch is in on and off states, respectively. Compared to conventional APFCs, the proposed technique has several advantages. First, no dissipative voltage divider is required. Second, electrical isolation between the power conversion stage and the control stage can be achieved inherently. Third, no complicated or sophisticated digital sampling and numerical computations are needed. The applicability and accuracy of the proposed technique have been confirmed experimentally.
AB - This paper presents the realization of a boost-type active power factor corrector (APFC) using a single current sensor to sense the inductor current for input current shaping and output voltage regulation. Neither input voltage nor output voltage sensing is needed. The sensed inductor current is used for two main functions. The first one is for comparing with a sawtooth signal in order to shape the input current waveform. The second one is for determining the input and output voltages by processing the rates of change of the inductor current when the main switch is in on and off states, respectively. Compared to conventional APFCs, the proposed technique has several advantages. First, no dissipative voltage divider is required. Second, electrical isolation between the power conversion stage and the control stage can be achieved inherently. Third, no complicated or sophisticated digital sampling and numerical computations are needed. The applicability and accuracy of the proposed technique have been confirmed experimentally.
UR - https://www.scopus.com/pages/publications/0034470779
UR - https://www.scopus.com/pages/publications/0034470779#tab=impact
U2 - 10.1109/PESC.2000.879883
DO - 10.1109/PESC.2000.879883
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 0-7803-5692-6
VL - 2
T3 - PESC Record - IEEE Annual Power Electronics Specialists Conference
SP - 577
EP - 582
BT - 2000 IEEE 31st Annual Power Electronics Specialists Conference
PB - IEEE
T2 - 31st IEEE Annual Power Electronics Specialists Conference (PESC '00)
Y2 - 23 June 2000 through 23 June 2000
ER -