Open AccessLow‐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%.