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Design of a digital PID regulator based on look-up tables for control of high-frequency DC-DC converters

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2 Author(s)
A. Prodic ; Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA ; D. Maksimovic

This paper describes design of a digital PID regulator based on look-up tables for high frequency DC-DC switching converters. The use of the took-up tables instead of multipliers enables a small. low-power implementation and operation at high switching frequencies. Design guidelines are given for the resolution and size of entries in the look-up tables. A design example and experimental results are presented for a digital controller IC used to control a 1 MHz, 2.7 V, 3 W buck converter.

Published in:

Computers in Power Electronics, 2002. Proceedings. 2002 IEEE Workshop on

Date of Conference:

3-4 June 2002