Analysis of PFM Operation Model for Capacitor Charger Resonant Topology with Energy Dosage

Capacitor charger resonant topology has been widely used in high-power and high-voltage filed due to the high efficiency and low switching loss. However, the steady-state and dynamic model is not clearly proposed in the past few literatures. This paper shows the derivation process for the topology and presents the operation model under PFM control. The PFM control model is presented and analytical solution is obtained. Experiment results are proposed to verify the theoretical conclusions.