Title :
Analogue-to-digital interface technique for digital controllers in DC-DC converters
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Hanyang Univ., Ansan, South Korea
Abstract :
A digital controller for a DC-DC converter is implemented with an efficient analogue-to-digital interface scheme. Conventional digital controllers require flash-type ADCs, which need large analogue circuits and thus significantly diminish the advantage of digital implementation. The presented delta-sigma modulated single-bit interface effectively reduces the analogue circuit area, while it achieves good voltage regulations. A silicon chip is implemented and measured to prove the successful operation of the controller.
Keywords :
DC-DC power convertors; controllers; delta-sigma modulation; voltage control; DC-DC converters; analogue circuits; analogue-to-digital interface; delta-sigma modulated single-bit interface; digital controllers; voltage regulation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20051452