Power control circuit
AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.
InventorChun-Fang Xi
Life of this patent
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Abstract
A power control circuit includes an input/output controller hub (ICH), and first to third metal-oxide-semiconductor field effect transistors (MOSFETs). A drain of the first MOSFET is connected to a standby power source through a first resistor. A gate of the first MOSFET is connected to a sleep control terminal of the ICH through a second resistor. A drain of the second MOSFET is connected to the drain of the first MOSFET through a third resistor. A gate of the second MOSFET is connected to a general purpose input/output terminal of the ICH through a fourth resistor. A source of the third MOSFET is connected to the standby power source. A gate of the third MOSFET is connected to the drain of the second MOSFET. A drain of the third MOSFET is connected to a power terminal of an onboard network interface card.
Claims4
A power control circuit, comprising:
- an input/output controller hub (ICH) comprising a sleep control terminal and a general purpose input/output (GPIO) terminal;
- a first metal-oxide-semiconductor field effect transistor (MOSFET), wherein a drain of the first MOSFET is connected to a standby power source through a first resistor, a gate of the first MOSFET is connected to the sleep control terminal of the ICH through a second resistor, a source of the first MOSFET is grounded;
- a second MOSFET, wherein a drain of the second MOSFET is connected to the drain of the first MOSFET through a third resistor, a gate of the second MOSFET is connected to the GPIO terminal of the ICH through a fourth resistor, a source of the second MOSFET is grounded;
- and
- a third MOSFET, wherein a source of the third MOSFET is connected to the standby power source, a gate of the third MOSFET is connected to the drain of the second MOSFET, a drain of the third MOSFET is connected to a power terminal of an onboard network interface card.
Dependencies are inferred from the claim text.