Premium
DC analysis and design of a PWM buck converter operated as a dynamic power supply
Author(s) -
Salvatierra Thomas,
Kazimierczuk Marian K.
Publication year - 2017
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.2270
Subject(s) - buck converter , pulse width modulation , converters , power (physics) , voltage , amplifier , electronic engineering , computer science , control theory (sociology) , electrical engineering , engineering , physics , cmos , control (management) , quantum mechanics , artificial intelligence
Summary Modern energy transmission and signal reproduction techniques rely upon power amplifiers that must operate with high efficiency. An increasingly popular technique for addressing this problem involves replacing the fixed power amplifier supply voltage V D D with a controlled, variable voltage provided by a dynamic power supply. Although pulse‐width modulated dc‐dc buck converters typically function as fixed‐output supplies, this paper provides new theoretical dc analysis for operation wherein the output voltage is controlled and continuously variable over a wide range. A design procedure for the variable‐output buck converter is derived. Key device parameters affecting converter speed and efficiency are identified. The dc analysis and design procedure are verified experimentally, with calculated and measured parameters shown to be in good agreement. Copyright © 2016 John Wiley & Sons, Ltd.