Title :
A PLL-based current-mode PWM circuit suitable for current-mode controlled techniques
Author :
Lin, Yeong-Tsair ; Wu, Chi-Cheng ; Wu, Jia-Long ; Jen, Mei-Chu ; Wu, Dong-Shiuh ; Cheng, Huan-Ren
Author_Institution :
Dept. of Electron. Eng., Lunghwa Univ. of Sci. & Technol., Taoyuan, Taiwan
Abstract :
A wide-range current-mode pulse-width modulation circuit for current-mode controlled techniques is presented in this paper. The proposed circuit has been designed and implemented using 0.35-¿m CMOS 2P4M process. The core die size is around 95×115 ¿m2 . The experimental results show that the variation of the output frequency within ±0.25%. The linear range of input current is from 114 to 297 ¿A , and corresponding duty cycle of pulse-width output is from 2.5% to 93.5%.
Keywords :
CMOS digital integrated circuits; current-mode circuits; integrated circuit design; phase locked loops; pulse width modulation; PLL; current 114 muA to 297 muA; current-mode PWM circuit; current-mode controlled technique; digital CMOS 2P4M process; phase locked loops; size 0.35 mum; wide-range current-mode pulse-width modulation circuit; Batteries; CMOS process; CMOS technology; Circuits; Oscillators; Pulse width modulation; Pulse width modulation converters; Space vector pulse width modulation; Very large scale integration; Voltage control;
Conference_Titel :
Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2185-5
Electronic_ISBN :
978-1-4244-2186-2
DOI :
10.1109/ICSICT.2008.4734963
