Duty Cycle Correction Using Negative Feedback Loop

被引：0

作者：

Patil, Sharath ^{[1
]}

Rudraswamy, S. B. ^{[2
]}

机构：

[1] Kawvasaki Microelect, Tokyo, Japan

[2] Sri Jayachamarajendra Coll Engn, Mysore, Karnataka, India

来源：

INTERNATIONAL JOURNAL OF ELECTRONICS AND TELECOMMUNICATIONS | 2009年 / 55卷 / 04期

关键词：

Duty cycle Correction Analog solution Feedback;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

An architecture has been proposed to obtain a duty cycle of nearly 50% for single- ended signals. The main idea is based on the fact that the average DC value of a signal is proportional to its Duty Cycle. So, if we assure that the signal and its inverted counterpart have equal average DC value, that particular signal will have a 50% duty cycle. A feedback circuit is used to compare the average DC values and correct the duty cycle of the signal. The duty correction circuit was implemented in 130nm technology with a power supply of 1.2 V. It was found by simulation that the circuit gives nearly 50% duty cycle at the output for a 500MHz signal when the input duty cycle is varied from 25% to 75%.

引用

页码：577 / 583

页数：7