Power management device for multi-power electronic equipment and power supply/charge management method

Abstract

The invention discloses a power management device for multi-power electronic equipment and a power supply / charge management method. The device comprises a first power supply terminal, a first switching circuit, a second power supply terminal, a second switching circuit, a charge controller, a third power supply terminal and a third switching circuit, wherein the first power supply terminal is connected to a first power supply; the first power supply terminal is connected with an input end of the charge controller through the first switching circuit; the second power supply terminal is connected to a second power supply; the second power supply terminal is connected with the input end of the charge controller through the second switching circuit; an output end of the charge controller is connected to the power supply terminal of the electronic equipment; the third power supply terminal is connected to a third power supply with a power storage function; the third power supply terminal is connected with the power supply terminal of the electronic equipment through the third switching circuit; and the charge controller is configured to control charging for the third power supply. The power management device achieves power management for the electronic equipment under a multi-power condition.

Description

technical field [0001] The invention relates to a power management device and a power supply / charging management method of multi-power electronic equipment. Background technique [0002] At present, the power management methods of the existing electronic equipment basically only involve the power management under the condition that the grid power supply and the battery exist at the same time, and the electronic equipment with three power sources only involve the power management between the grid power supply and the dual batteries. With the popularization of wireless charging technology, multi-power electronic devices with wireless charging are also popularized on the market. Compared with the traditional grid power supply with dual batteries, the existence of the wireless charging power supply must prevent the reverse flow of current, thereby avoiding damage to the equipment. [0003] In view of the problems existing in power management in the prior art, it is of great sig...

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Problems solved by technology

[0002] At present, the power management methods of existing electronic equipment basically only involve the power management under the condition that the grid power and the battery exist at the same time, and the electronic equipment with three power sources only involves the power management between the grid power and the double battery

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