Design of a 5V-Output Boost DC-DC Converter with Improved Protection Functions for Battery-Operated Devices

被引：0

作者：

Mo, Yongsea ^{[1
]}

Song, Wonju ^{[1
]}

Lee, Ja-kyeong ^{[1
]}

Han, Yeji ^{[1
]}

Kumar, Sandeep ^{[1
]}

Song, Hanjung ^{[2
]}

机构：

[1] Inje Univ, Dept Nanosci & Engn, Gimhae 50834, South Korea

[2] Inje Univ, Ctr Nano Mfg, Dept Nanosci & Engn, Gimhae 50834, South Korea

来源：

2017 INTERNATIONAL CONFERENCE ON SYSTEM SCIENCE AND ENGINEERING (ICSSE) | 2017年

基金：

新加坡国家研究基金会;

关键词：

DC-DC converter; SPICE; step-up; integrated circuit; protection circuits;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In this paper, a step-up dc-dc converter for mobile device applications is proposed. The converter is operated with 1 MHz high switching frequency. The power stage of converter includes an inductor, an output capacitor, MOS transistors and feedback resistors for control loop. The control stage consists of an error amplifier, comparator, a ramp generator for PWM block, bandgap reference and soft start block with power transistor. Also, the circuit includes protection block such as over voltage protection (OVP), under voltage lock out (UVLO) and thermal shutdown (TSD) block. The proposed step-up converter has been designed with a 0.18 urn CMOS process technology. Simulation results show an output voltage of 5 V with a ripple of 40 mV at the output current of 100 rnA for an input voltage of 3.3 V.

引用

页码：757 / 760

页数：4