A Time-Programmable Soft-Start Circuit with Hiccup Control
A time-programmable soft-start circuit with hiccup control for switching regulators is presented. By using a novel soft-start voltage generating circuit, the soft-start time can be set internally and externally by one pin which enhances the flexibility for applications. A hiccup control has also been integrated into the circuit to deal with the problems of current inrush and voltage overshot in short circuit case which can effectively improves the system reliability. The proposed soft-start circuit has been fabricated with UMC 0.35μm CDMOS process successfully, and the detailed experimental results are shown at the end of the article.
Robin G. Qiu and Yongfeng Ju
Y. M. Li et al., "A Time-Programmable Soft-Start Circuit with Hiccup Control", Applied Mechanics and Materials, Vols. 135-136, pp. 151-154, 2012