Title :
Novel Dual-Output Step Up and Down Switched Capacitor DC/DC Converter
Author :
Han, Shiming ; Wu, Xiaobo ; Yan, Xiaolang
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
A novel dual-output switched capacitor (SC) DC/DC converter with simultaneous step-up and step- down output voltages was proposed. As well as featuring all merits of classical charge pumps, it features lower-cost and higher-efficiency by using charge capacitor sharing and multiple gain pair techniques. A set of analytical equations were derived to describe its performances and optimize its design. The converter was designed and simulated in 0.35 mum CMOS process with Cadencereg SPECTRE and the simulation results were well consistent with analytical predictions. The errors between them were less than 0.01%-0.33%.
Keywords :
DC-DC power convertors; switched capacitor networks; charge capacitor sharing; multiple gain pair techniques; size 0.35 mum; step up output voltages; step-down output voltages; switched capacitor DC-DC converter; Analytical models; CMOS process; Capacitors; Charge pumps; DC-DC power converters; Design optimization; Equations; Performance analysis; Predictive models; Voltage; DC/DC power converter; Switched capacitor circuit; dual output; ripple voltage; steady state analysis;
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.2007.4450264
