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.
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Kouhei YAMADA, Satoshi SUGAHARA, Nobuo FUJII, "Over Current Protection for PFM Control DC-DC Converter" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 5, pp. 1301-1307, May 2009, doi: 10.1587/transfun.E92.A.1301.
Abstract: 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.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.1301/_p
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@ARTICLE{e92-a_5_1301,
author={Kouhei YAMADA, Satoshi SUGAHARA, Nobuo FUJII, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Over Current Protection for PFM Control DC-DC Converter},
year={2009},
volume={E92-A},
number={5},
pages={1301-1307},
abstract={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.},
keywords={},
doi={10.1587/transfun.E92.A.1301},
ISSN={1745-1337},
month={May},}
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TY - JOUR
TI - Over Current Protection for PFM Control DC-DC Converter
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1301
EP - 1307
AU - Kouhei YAMADA
AU - Satoshi SUGAHARA
AU - Nobuo FUJII
PY - 2009
DO - 10.1587/transfun.E92.A.1301
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 5
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - May 2009
AB - 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.
ER -