Analysis and experimental evaluation of single-switch fast-response switching regulators with unity power factor

K. W. Siu; Y. S. Lee; Chi Kong Tse

doi:10.1109/28.633804

Analysis and experimental evaluation of single-switch fast-response switching regulators with unity power factor

K. W. Siu, Y. S. Lee, Chi Kong Tse

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

18 Citations (Scopus)

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.

Original language	English
Pages (from-to)	1260-1266
Number of pages	7
Journal	IEEE Transactions on Industry Applications
Volume	33
Issue number	5
DOIs	https://doi.org/10.1109/28.633804
Publication status	Published - 1 Dec 1997

Keywords

Fast output-voltage regulation
Power-factor correction
SSIPP

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

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10.1109/28.633804

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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.",

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AB - 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.

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Analysis and experimental evaluation of single-switch fast-response switching regulators with unity power factor

Abstract

Keywords

ASJC Scopus subject areas

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