Power Supply Control Circuit, System, and Method

A power supply control system, comprising:

• a main control module;
• a first power supply control circuit coupled to the main control module;
• a second power supply control circuit coupled to the main control module;
• a first battery module coupled to the first power supply control circuit;
• and
• a second battery module coupled to the second power supply control circuit,
• wherein the first power supply control circuit comprises:
• a switch circuit connected between an auxiliary power supply terminal of the first battery module and the main control module;
• a fast turn-on circuit connected to a control terminal of the switch circuit, wherein the fast turn-on circuit is configured to generate a first switch control signal based on a fast start signal received from the main control module;
• a power supply detection circuit connected to the control terminal of the switch circuit, wherein the power supply detection circuit is configured to generate a second switch control signal based on an auxiliary power supply control signal received from the first battery module, and wherein the switch circuit is turned on based on an indication from at least one of the first switch control signal or the second switch control signal;
• and
• a power consumption control circuit connected to the power supply detection circuit, wherein the power consumption control circuit is configured to enable the power supply detection circuit based on an anti-power consumption signal received from the main control module.

A power supply control system comprising:

• a main control module;
• a first power supply control circuit coupled to the main control module;
• a second power supply control circuit coupled to the main control module;
• a first battery module coupled to the first power supply control circuit;
• and
• a second battery module coupled to the second power supply control circuit, wherein the main control module is configured to:
• determine that a charge level of the first battery module is insufficient, and
• control, based on a determination the charge level of first battery module is insufficient or based on detecting that the first battery module is to be removed, the first battery module to stop supplying power, and the second battery module to start to supply power.