Title :
Design of an oscillator with the simple slope compensation circuit
Author :
Gang, Lu ; Wenlin, Gao
Author_Institution :
Inst. of Autom. & Inf. Eng., Xi´´an Univ. of Technol., Xi´´an, China
Abstract :
A window-comparator CMOS oscillator with slope compensation ability, which can be applied in DC-DC converter control IC, is presented in this paper. And the slope compensation circuit, simple and effective, simplifies the whole circuit. Using 0.35 mum CMOS model, the oscillator is simulated by Hspice, and the result indicates that the frequency of the output of the oscillator is stable at 1.2 MHz and the duty cycle is above 90%, which satisfy the requirement.
Keywords :
CMOS integrated circuits; DC-DC power convertors; SPICE; comparators (circuits); compensation; integrated circuit design; oscillators; CMOS model; DC-DC converter; HSPICE; control IC; frequency 1.2 MHz; simple slope compensation circuit; size 0.35 mum; window-comparator oscillator; DC-DC power converters; Design automation; Design engineering; Feedback circuits; Frequency; Personal digital assistants; Ring oscillators; Switched capacitor circuits; Switches; Timing; CMOS; slope compensation; window-comparator Oscillator;
Conference_Titel :
Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-2799-4
Electronic_ISBN :
978-1-4244-2800-7
DOI :
10.1109/ICIEA.2009.5138655
