POWER SUPPLY CIRCUIT

摘要

A power supply circuit includes a connector, a first power supply module, and a second power supply module. The first power supply module is connected to, and supplies power to, the connector. The second power supply module is connected to the connector and the first power supply module. The first power supply module stops supplying power to the connector and outputs a control signal to the second power supply module when a current flowing through the first power supply module exceeds a certain limit. The second power supply module supplies power to the connector when the second power supply module receives the control signal.

主权项

1. A power supply circuit comprising:
a connector; a first power supply coupled to the connector and configured to supply power to the connector, wherein the first power supply is configured to interrupt, when a current flowing through the first power supply exceeds a predetermined limit, the supply of power to the connector and output a control signal; the first power supply being further configured to supply power, when the current flowing through the first power supply is below a predetermined limit, and interrupt the control signal; a second power supply coupled to the connector and the first power supply, wherein the second power supply is configured to supply power to the connector when the second power supply receives the control signal from the first power supply and the second power supply is configured to interrupt supply of power when no control signal is received.