Huawei Technologies Co., Limited

Huawei Device Co., Ltd.

Yuanguo Wang

Konggang Wei

Guanghua Zhong

Ming Zhang

Qiang Xiong

Embodiments of the present invention relate to the battery monitoring field, and provide a load power supply circuit and a terminal. The load power supply circuit includes a charging manager and a step-up circuit. The charging manager includes a first pin, a second pin, and a third pin. The first pin of the charging manager is electrically connected to a load, and the second pin of the charging manager is electrically connected to a battery. The step-up circuit includes a first end, a second end, and a control end. The first end of the step-up circuit is electrically connected to the load, the second end of the step-up circuit is electrically connected to the battery, and the control end of the step-up circuit is electrically connected to the third pin of the charging manager.

Load power supply circuit and terminal

Embodiments of the present invention provide a power supply apparatus and method, and a user equipment. In the embodiments of the present invention, charging protection for the battery electric core and a bypass function for the voltage boost circuit can be implemented through control that is performed on the switch device by the logic control circuit, so that additional impedance can be reduced and working efficiency can be improved.

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Shenzhen, China

Yuanguo Wang