Circuits Syst Signal Process (2014) 33:2643–2653 DOI 10.1007/s00034-014-9753-1 SHORT PAPER Design and Analysis of Output Voltage Regulation in Multi-Phase Switched Capacitor Converters Alexander Kushnerov · Shmuel Ben-Yaakov Received: 17 July 2013 / Revised: 31 January 2014 / Accepted: 4 February 2014 / Published online: 21 March 2014 © Springer Science+Business Media New York 2014 Abstract A new regulation method based on duty cycle control of the average cur- rents in the multi-phase switched capacitor converters (SCC) is proposed, analyzed, and verified experimentally for the no effective charging case, also known as the fast switching limit. The regulation is accomplished by adjusting the value of the SCC equivalent resistance. To this end, the time slots allotted to each of the SCC topolo- gies are adjusted, while the total switching period is kept constant. The time slots are represented by master and slave duty cycles. By this, the SCC output voltage is expressed analytically as a function of the master duty cycle. In a similar way, ana- lytical expressions for the voltages across the flying capacitors and for the average currents in each of the topologies can be obtained. Excellent agreement was found between the theoretical and experimental results. Keywords Duty cycle control · Efficiency · Sensitivity · Switched capacitor converter 1 Introduction Switched capacitor converters (denoted hereinafter as SCC for singular and plural) have inherent losses that make their use prohibitive in many applications. Still, SCC are preferred in some cases due to their IC compatibility, relatively small size, and the lack of magnetic elements. It is well known that the SCC exhibit high efficiency only A. Kushnerov (B ) · S. Ben-Yaakov Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, P.O. Box 653, 84105 Beer-Sheva, Israel e-mail: kushnero@ee.bgu.ac.il S. Ben-Yaakov e-mail: sby@ee.bgu.ac.il