Low‐power pulse width modulation (PWM) for high‐frequency DC–DC converters | Zendy

Veerabathini A. | Zendy; Eshappa N.B. | Zendy; Furth P.M. | Zendy

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Low‐power pulse width modulation (PWM) for high‐frequency DC–DC converters

Author(s) -

Veerabathini A.,

Eshappa N.B.,

Furth P.M.

Publication year - 2018

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2018.0572

Subject(s) - pulse width modulation , duty cycle , comparator , waveform , converters , pulse frequency modulation , power (physics) , electronic engineering , modulation (music) , electrical engineering , computer science , engineering , pulse (music) , physics , voltage , pulse amplitude modulation , acoustics , quantum mechanics

A low‐power pulse width modulation (PWM) control circuit for high‐frequency switching direct current (DC)–DC converters based on a one‐shot circuit is proposed. The proposed PWM control circuit eliminates the use of a high‐power comparator and ramp generator that is conventionally used to generate the PWM waveform. The design is validated through simulation in a 0.13‐μm process. The proposed circuit operating at 20 MHz demonstrates greater than 20× reduction in power consumption compared with the conventional PWM circuit over a duty‐cycle range of 10–90%.

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