【摘 要】
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An asymmetric PWM controlled LLCC LED driver with capacitor connected in series with secondary winding is proposed.Due to the presence of the secondary side
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An asymmetric PWM controlled LLCC LED driver with capacitor connected in series with secondary winding is proposed.Due to the presence of the secondary side blocking capacitor,the DC bias of the magnetizing current can be eliminated when asymmetric PWM control is employed.Because the switching frequency is fixed regardless of the load variation,the efficiency of light load is improved compared to conventiona
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