Importance

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Abstract

Provided are a power supply management circuit, a function module, an autonomous operation device and a control system. The power supply management circuit comprises a switch unit (1), a first voltage reduction unit (2), a second voltage reduction unit (3) and a control unit (4), the switch unit (1) being connected to a battery (10), and the switch unit (1) being used for turning on or turning off a path between the battery and a load (20), wherein when the switch unit (1) is in a turned-on state, the power supply management circuit comprises a first state and a second state; the first voltage reduction unit (2) is connected to the switch unit (1), and the first voltage reduction unit (2) is used for converting, in the first state, the voltage of the battery (10) into a voltage required by the load (20), and supplying power to the load (20); the second voltage reduction unit (3) is respectively connected to the switch unit (1) and the control unit (4), and the second voltage reduction unit (3) is used for converting, in the second state and according to a first control instruction of the control unit (4), the voltage of the battery (10) into the voltage required by the load (20), and supplying power to the load (20). By means of the circuit, the problem of high-power loss of a power supply management circuit is solved.

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First Claim