A Novel LLC Circuit with High Efficiency and Wide Output Voltage Range
Due to high power density and high working efficiency,LLC circuits are widely used in low-and high-power devices such as smartphone chargers and electric vehicle charging piles.However,traditional LLC circuits have voltage regulation capabilities that are affected by circuit parameters and cannot always work in Resonant frequency and other shortcomings,in view of these problems,this paper proposes a novel LLC circuit topology.By improving the secondary side circuit topology of the LLC circuit,the primary side switch tube of the LLC circuit can always work at the resonant frequency,that is to achieve high efficiency.At the same time,the improved secondary side circuit topology also improves the voltage regulation capability of the LLC circuit,and the effectiveness of the proposed new LLC circuit is verified by simulation.
novel LLC circuitsoft switchingvoltage regulation range
NETL
NSTL
万方数据
