A 9-11 bits Phase-Interpolating Digital Pulse-Width Modulator with 1000X Frequency Range

被引：0

作者：

Lee, Yoontaek ^{[1
]}

Kang, Taewook

Kim, Jaeha

机构：

[1] Seoul Natl Univ, Dept Elect & Comp Engn, Seoul, South Korea

来源：

2014 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2014年

基金：

新加坡国家研究基金会;

关键词：

CONVERTERS;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A design of a new hybrid-type digital pulse-width modulator (DPWM) with a 1000: 1 frequency range from 10-kHz to 10-MHz, maximum resolution of 11-bits, and power dissipation of 2.36-mW is presented. The key to such a wide frequency range and low power dissipation is to use a phase interpolator circuit for fine duty-cycle adjustment instead of the delay lines used in the previous literature. The proposed hybrid DPWM realizes the upper 5-bit resolution using a digital counter and lower 6-bit using a phase interpolator. The prototype IC fabricated in a 0.25-mu m HV CMOS demonstrates the 1000:1 frequency range and excellent linearity for 9 similar to 11-bit resolutions.

引用

页码：2172 / 2176

页数：5