標題: Delay-Line Based Fast-Locking All-Digital Pulsewidth-Control Circuit with Programmable Duty Cycle
作者: Su, Jun-Ren
Liao, Te-Wen
Hung, Chung-Chih
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Fast-locking;programmable duty cycle;pulse-width control circuit
公開日期: 2012
摘要: This paper proposes an all-digital fast-locking pulsewidth-control circuit with programmable duty-cycle. In comparison with prior art, our use of two delay lines and a time-to-digital detector allows the pulsewidth-control circuit to operate over a wide frequency range with fewer delay cells, while maintaining the same level of accuracy. This study presents a new duty-cycle setting circuit that calculates the desired output duty cycle without the need for a look-up table. Results show that the proposed circuit performs well for an input operating frequency ranging from 200 to 600MHz, and an input duty cycle ranging from 30 to 70%. It achieves a programmable output duty cycle ranging from 31.25 to 68.75% in increments of 6.25%.
URI: http://hdl.handle.net/11536/134772
ISBN: 978-1-4673-2771-8
期刊: 2012 IEEE Asian Solid State Circuits Conference (A-SSCC)
起始頁: 305
結束頁: 308
顯示於類別:會議論文