The resonant switched capacitor (RSC) converter with zero-current switching (ZCS) is a new topology of switched capacitor converter.This paper studied the influence of circuit parasitic parameters and operating conditions on the RSC converter steady-state characteristic.The mathematical expressions of the average output voltage and efficiency were derived for the first time
which were helpful to analyze the RSC converter performance regarding the loading effect and the variation of input voltage.A frequency control method for RSC converters was achieved based on the output voltage expression.A step-down RSC converter was used as an example to describe the equation derivation.The similar steady-state analysis could be applied to other types of ZCS RSC converters.Finally
experimental results on a 12V/5V/2.5A prototype are found to be nearly in accordance with the theoretical results.