A novel half-cycle sampled discrete control of series-parallel resonant converter

Series-parallel resonant converter has a group of advantages when operating with optimized modulation. Pinheiro´s original optimized modulation control is convenient for analogue-digital hybrid implementation, not for full digital implementation. A novel, high-dynamic, digital device adapted control method is proposed in this paper. It is called half-cycle sampled discrete control. By simulation and experiment validation, the novel control has some improvement in dynamic performance.