Patent ID: 8195963

Claim:
A circuit for controlling time sequence of a motherboard to supply power for a motherboard component, comprising: a control circuit connected to a startup signal output terminal to receive a startup signal during turning on the motherboard, wherein the startup signal is configured to turn off the control circuit to delay a first voltage signal received by a first power receiving terminal for a period of time before outputting a new voltage signal; a switch circuit connected to the control circuit and configured to be turned off under the control of the new voltage signal; a power conversion circuit connected between the switch circuit and a second power receiving terminal, wherein the power conversion circuit converts a second voltage signal into a supply voltage in response to the switch circuit being turned off, to provide the supply voltage to the motherboard component; and wherein the control circuit comprises a first electronic switch, a first resistor, and a first capacitor; a first terminal of the first electronic switch is configured for receiving the startup signal, a second terminal of the first electronic switch is grounded, a third terminal of the first electronic switch is connected to the switch circuit, the first resistor is connected between the first power receiving terminal and the third terminal of the first electronic switch, the first capacitor is connected between the third terminal of the first electronic switch and ground; when the motherboard is turned on, the first voltage signal received by the first power receiving terminal is delayed by the first resistor and the first capacitor before being output to the switch circuit.