Title :
A 5V output voltage boost switching converter with hybrid digital and analog PWM control
Author :
Lu, Chien-Chun ; Kuo, Ming-Ching
Author_Institution :
Information and Communications Research, Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
Abstract :
This paper proposes a Boost DC-DC switching converter with a 5V output voltage. By operating in CCM mode, it combines a digital pulse width modulator (DPWM) with a conventional analog pulse width modulator to enhance the input range and reduce the inductor inrush current greatly. With the DPWM technique, the boost converter can operate at an input voltage from 1.2V to 4.2V, while generating a output voltage up to 5V in TSMC 0.25um 5.0V CMOS technology. The measured peak efficiency of the switching converter is up to 97%.
Keywords :
Batteries; Converters; Current measurement; Pulse width modulation; Surges; Voltage control; Voltage measurement; Boost; Switching Converter and Digital PWM;
Conference_Titel :
Low-Power Electronics and Design (ISLPED), 2010 ACM/IEEE International Symposium on
Conference_Location :
Austin, TX, USA
Print_ISBN :
978-1-4244-8588-8
