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Design of an oscillator with the simple slope compensation circuit

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2 Author(s)
Lu Gang ; Inst. of Autom. & Inf. Eng., Xi''an Univ. of Technol., Xi''an, China ; Gao Wenlin

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.

Published in:

Industrial Electronics and Applications, 2009. ICIEA 2009. 4th IEEE Conference on

Date of Conference:

25-27 May 2009