Title :
Design of a self-oscillating PWM signal generator with a variable fruquency and adjustable duty cycle
Author :
Jiangang Zhang ; Zehong Li ; Bo Zhang ; Ruimin Peng ; Rong Wang
Author_Institution :
Sch. of Microelectron. & Solid State Electron., Univ. of Electron. Sci. & Technol. of China(UESTC), Chengdu, China
Abstract :
This paper presents the implementation of a self-oscillating PWM(Pulse Width modulation) signal generator. The self-oscillating PWM signal generator(PSG) generates a variable frequency and adjustable duty cycle. This circuit consists of two comparators, start-up detection part, constant current part and logical control part. The Spectre simulation results are shown, which are in correspondence to theoretical anticipation.
Keywords :
circuit oscillations; pulse width modulation; signal generators; PSG; Spectre simulation; adjustable duty cycle; comparator; constant current part; logical control part; pulse width modulation; self-oscillating PWM signal generator; start-up detection part; variable frequency cycle; Generators; Pulse width modulation; PWM; self-oscillation; start-up detection;
Conference_Titel :
Electron Devices and Solid-State Circuits (EDSSC), 2014 IEEE International Conference on
DOI :
10.1109/EDSSC.2014.7061154
