CAJ | 학술논문

针对LLC谐振变换器增益公式复杂、谐振参数设计困难等问题,详细分析电路的工作过程,给出参数设计的约束条件,简化了参数设计要素,最后在合理的谐振参数下通过实例进行了验证.实验结果表明,LLC谐振变换器能够实现开关管的零电压开通,同时能够有效抑制整流二极管的反向恢复特性,实现次级的零电压关断.
침대LLC해진변환기증익공식복잡、해진삼수설계곤난등문제,상세분석전로적공작과정,급출삼수설계적약속조건,간화료삼수설계요소,최후재합리적해진삼수하통과실례진행료험증.실험결과표명,LLC해진변환기능구실현개관관적령전압개통,동시능구유효억제정류이겁관적반향회복특성,실현차급적령전압관단.
To the problems of the gain formula of LLC resonant convertor being complex, the design of resonant parameters being difficult, etc., this paper analyses its circuit’s operating process in detail, gives the constraint conditions for its parameters, simplifies the key factors of parameter design, and finally have a verify check by taking examples under the circumstances of reasonable resonant parameters. Experimental results prove that the LLC resonant converter can implement the zero voltage on of the switching transistor, and meanwhile, suppress effectively the reverse recovery characteristics of rectifier diode and achieve the zero voltage off in the secondary.