Huawei Technologies Co., Limited

Huawei Digital Power Technologies Co., Ltd.

Yaqoob Muhammad

Xiao Zhang

Grover Victor Torrico-Bascopé

Shengyong Dai

Qingzu Hong

Shuyu Ou

Wenbo Sun

According to a non-isolated DCDC resonant conversion control circuit provided in embodiments of this application, an inductor and a capacitor that are resonant are connected in series, so that a current flowing through the inductor is a sine waveform. A waveform coefficient of the sine wave is small, and a conduction loss of the sine wave is low. Therefore, the circuit provided in embodiments of this application can significantly reduce a circuit loss. According to the non-isolated DCDC resonant conversion control method provided in embodiments of this application, not only a phase shift angle can be adjusted to enable a switching transistor to implement zero voltage switching (ZVS) on, but switching frequency can also be adjusted. Therefore, ranges in which a voltage and power of an output interface can be adjusted are large, so that non-isolated wide-range DCDC resonant conversion is implemented.

Non-isolated DCDC resonant conversion control circuit and control method

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Kista, Sweden

Yaqoob Muhammad