Lowering the Output Resistance by Quadrature Phasing in Switched-Capacitor Power Converters

被引：0
|
作者：
Josh, Daljit [1 ]
Gregori, Stefano [1 ]
机构：
[1] Univ Guelph, Sch Engn, Guelph, ON N1G 2W1, Canada
来源：
2020 27TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS AND SYSTEMS (ICECS) | 2020年
关键词：
Charge pump; voltage multiplier; stage outphasing; multiphase; soft charging; adiabatic charging;
D O I：
10.1109/icecs49266.2020.9294813
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A model for quadrature phasing in switched-capacitor power converters based on cascaded voltage doublers is proposed in this paper. The quadrature phases reduce the peak currents during power conversion by doubling the charge transfer events for a given frequency of operation. The overall effect is a reduction in the converter output resistance between 25% and 50% that also improves the conversion efficiency. The model was derived from first principles to highlight the improvement in output resistance for an arbitrary number of stages. Simulations for converters with two, three, four and five stages were run to validate it.
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页数：4
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