A Digital–Controlled Soft-Start Circuit for Negative Output DC–DC Converter-Reference-Cited by-同舟云学术

A Digital–Controlled Soft-Start Circuit for Negative Output DC–DC Converter

Published:2019-03-31 Issue:04 Volume:28 Page:1950067
ISSN:0218-1266
Container-title:Journal of Circuits, Systems and Computers
language:en
Short-container-title:J CIRCUIT SYST COMP

Author:

Li Yan-Ming¹,Xi Xiao-Li¹^ORCID,Zhang Hao¹,Chen Zhong-Hui¹,Sun Jian¹,Luo Yang¹,Jin Hai-Qin¹,Zhang Zan¹

Affiliation:

1. School of Electronic and Control Engineering, Chang’an University, Middle-section of Nan’er Huan Road, Xi’an, ShaanXi Province 710064, P. R. China

Abstract

To suppress the inrush current and overshoot voltage generated at the start-up stage of Buck–Boost converter, a digital–controlled soft-start circuit based on digital-to-analog converter (DAC) control technology is proposed in this paper. The power consumption of the circuit is zero and the circuit is also keeps the characteristics of simple structure and high reliability. The circuit has been integrated into a Buck–Boost converter with negative voltage output by using the 0.18[Formula: see text][Formula: see text]m CDMOS high voltage process. The experimental results show that this circuit can effectively suppress the rush current, and the output voltage drops smoothly from 0 to the adjustment value, [Formula: see text][Formula: see text]V.

Funder

the Natural Science Basic Research Plan in Shaanxi Province of China

the Natural Science Foundation of China

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218126619500671

Reference9 articles.

1. Optimal Trajectory Control of LLC Resonant Converters for Soft Start-Up

2. A Noise-Shaped Buck DC–DC Converter With Improved Light-Load Efficiency and Fast Transient Response

3. Techniques of Dual-Path Error Amplifier and Capacitor Multiplier for On-Chip Compensation and Soft-Start Function

4. Closed-Loop Precharge Control of Modular Multilevel Converters During Start-Up Processes

5. Designing a compact soft-start scheme for voltage-mode DC–DC switching converters

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