Title :
Duty-cycle control boosts DC-DC converters
Author :
Cheong, S.V. ; Chung, S.H. ; Ioinovici, A.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech., Hung Hom, Hong Kong
fDate :
3/1/1993 12:00:00 AM
Abstract :
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.<>
Keywords :
power convertors; pulse width modulation; switched capacitor networks; DC-DC converters; IC technology; PWM; SC type; adjustable conversion ratios; low power supplies; pulsewidth modulated; switched-capacitor; Capacitors; DC-DC power converters; Energy conversion; Feedback circuits; Inductors; Pulse width modulation; Switches; Switching circuits; Transformers; Voltage control;
Journal_Title :
Circuits and Devices Magazine, IEEE
