Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/3268

An auto-selectable-frequency pulse-width modulator for buck converters with improved light-load efficiency

Authors Man, T.Y.
Mok, P.K.T.
Chan, M.
Issue Date 2008
Source Digest of Technical Papers - IEEE International Solid-State Circuits Conference , v. 51, 2008
Summary This modulator improves buck converter light-load efficiency by changing the switching frequency among a set of pre-defined frequencies. The frequencies are chosen so that the output spectrum of the converter with this modulator is the same as it would be if pulse-width modulation were used. This design is fabricated in a 0.35μm CMOS process, uses 1.4mm<sup>2</sup> and provides 90% peak efficiency at 300mA and 70% efficiency at 10mA. ©2008 IEEE.
Subjects
ISSN 0193-6530
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Language English
Format Conference paper
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