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Duty-cycle control boosts DC-DC converters

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3 Author(s)
S. V. Cheong ; Dept. of Electr. Eng., Hong Kong Polytech., Hung Hom, Hong Kong ; S. H. Chung ; A. Ioinovici

An improved design for a switched-capacitor pulsewidth modulated (PWM) DC-DC converter with adjustable conversion ratios is presented. The converter provides a nominal power of 40 W and nominal voltage conversion ratio of 12/5. The same structure can provide other conversion ratios, as required. Such low power supplies use relatively small, low-value capacitors, and could conceivably be realized with IC technology.<>

Published in:

IEEE Circuits and Devices Magazine  (Volume:9 ,  Issue: 2 )