Dynamic modeling and current control of all quantum series resonant converters

A generalized dynamic modeling and an improved current control technique for a quantum buck, boost, and buck-boost series resonant converter are proposed to overcome their inherent disadvantages such as the quantized output level and the large current ripple. Analyses of the internal operational characteristics for all kinds of quantum series resonant power converters are exploited, and improved current control techniques are developed from these analyses. Using the proposed control technique, every operational model for a quantum buck series resonant converter (SRC) and the additional switching signal for a quantum boost and a quantum buck-boost SRC can be optimally selected so that fast transient responses, minimized current ripples, and reduced offset currents can be obtained