Over Current Protection for PFM Control DC-DC Converter
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概要
- 論文の詳細を見る
An over current protection method suitable for Fixed ON-time PFM (Pulse Frequency Modulation) Control DC-DC converters is proposed. It is based on inductor bottom current limiting, realized by monitoring the synchronous rectifier current and extending the OFF-phase of the main switch until it decreases to a predetermined limit, and can properly limit the output current even in case of short circuit. A Fixed ON-time PFM DC-DC converter with the proposed over current protection was designed and fabricated in CMOS IC. Its current limiting operation was verified with simulations and measurements.
- （社）電子情報通信学会の論文
- 2009-05-01
著者
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藤井 信男
九州大学システム情報科学研究院電気電子システム工学部門
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SUGAHARA Satoshi
Fuji Electric Device Technology Co., Ltd.
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Yamada Kouhei
Tokyo Inst. Of Technol. Tokyo Jpn
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FUJII Nobuo
Tokyo Institute of Technology
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Sugahara Satoshi
Fuji Electric Device Technology Co. Ltd.
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Fujii Nobuo
Tokyo Inst. Of Technol. Tokyo Jpn
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