Analysis and Experimental Evaluation of Single-Switch Fast-Response Switching Regulators with Unity Power Factor
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 1260-1266 |
Journal / Publication | IEEE Transactions on Industry Applications |
Volume | 33 |
Issue number | 5 |
Publication status | Published - Sept 1997 |
Externally published | Yes |
Link(s)
Abstract
Based on a single-stage isolated power-factor-corrected power supply (SSIPP or S2IP2) employing a boost power-factor-correction (PFC) cell, the relationship between the input line voltage and line current of such switching regulators is studied. The conditions for unity power factor are derived. A control scheme to reduce the switch voltage stress while maintaining unity power factor is proposed. Practical implementation of the proposed control scheme is discussed. It is found that, by adding a simple input voltage feedforward to a conventional PWM controller, the switch voltage stress can be much reduced, while keeping the power factor very close to unity. Analysis and experimental results indicate that such a scheme is effective and feasible. © 1997 IEEE.
Research Area(s)
- Fast output-voltage regulation, Power-factor correction, SSIPP
Citation Format(s)
Analysis and Experimental Evaluation of Single-Switch Fast-Response Switching Regulators with Unity Power Factor. / Siu, K. W.; Lee, Y. S.; Tse, C. K.
In: IEEE Transactions on Industry Applications, Vol. 33, No. 5, 09.1997, p. 1260-1266.
In: IEEE Transactions on Industry Applications, Vol. 33, No. 5, 09.1997, p. 1260-1266.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review