Title :
A Novel Static CTS Charge Pump with Voltage Level Controller for DC-DC Converters
Author :
Shiau, Miin-Shyue ; Hsieh, Zong-Han ; Hsieh, Chi-Chieh ; Liu, Han-Yuen ; Liu, Don-Gey
Author_Institution :
Feng-Chia Univ., Feng-Chia
Abstract :
This paper describes a novel charge pumping technique for low-power dc-dc converters by switched capacitors. The proposed configurations were based on the charge-transfer-switch (CTS) topology. In this paper, the problems and possible solutions for conventional static CTS charge pumps will be surveyed. In our study, a novel static CMOS voltage shifter which was called the voltage level controller in our design was proposed to overcome the reverse charge sharing problem. The pump accepted an input of 1.5 V and generated a 7.5 V output for the load up to 75 mW. The converter was fabricated by the TSMC 0.35 mum CMOS technology and the resulted layout consumed an area of 125*160 mum2.
Keywords :
CMOS analogue integrated circuits; DC-DC power convertors; low-power electronics; switched capacitor networks; voltage multipliers; voltage regulators; TSMC CMOS technology; charge-transfer-switch topology; low-power dc-dc converters; reverse charge sharing problem; size 0.35 mum; static CMOS voltage shifter; static CTS charge pump; switched capacitors; voltage 1.5 V; voltage 7.5 V; voltage level controller; CMOS technology; Capacitors; Charge pumps; Circuits; DC-DC power converters; Intelligent networks; Switches; Switching converters; Topology; Voltage control;
Conference_Titel :
Electron Devices and Solid-State Circuits, 2007. EDSSC 2007. IEEE Conference on
Conference_Location :
Tainan
Print_ISBN :
978-1-4244-0637-1
Electronic_ISBN :
978-1-4244-0637-1
DOI :
10.1109/EDSSC.2007.4450167
