Circuit preventing supply of power to board incorrectly or unstably installed, method, and server system
AssigneeShenzhen Fulian Fugui Precision Industry Co., Ltd.
InventorsZhi-Yu Deng, Li-Wen Guo, Wen-Xiao Lu
Life of this patent
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Abstract
A board mis-insertion prevention circuit includes a first detection circuit, a second detection circuit, and a control module. The first detection circuit detects whether a board is in a first state and outputs a first detection signal when the board is in the first state. The second detection circuit detects whether the board is in a second state when the board is not in the first state, and outputs a second detection signal when the board is in the second state. The control module receives the first detection signal or the second detection signal and can allow or disconnect a power supply to the board according to the first detection signal or the second detection signal.
Claims14
A board mis-insertion prevention circuit comprising:
- a first detection circuit configured to detect whether a board is in a first state and output a first detection signal when the board is in the first state;
- a second detection circuit configured to detect whether the board is in a second state when the board is not in the first state, and output a second detection signal when the board is in the second state;
- and
- a control module electrically connected to the first detection circuit and the second detection circuit, configured to receive the first detection signal or the second detection signal, and disconnect power supply to the board according to the first detection signal or the second detection signal;
- wherein the first detection circuit comprises a first light emitting module and a fifth port, an anode of the first light emitting module is electrically connected to the fifth port and the control module, and a cathode of the first light emitting module is connected to a second power supply.
A server system comprising:
- a motherboard;
- a power module electrically connected to the motherboard, and configured to supply power to the motherboard;
- a board mis-insertion prevention circuit comprising:
- a first detection circuit configured to detect whether a board is in a first state and output a first detection signal when the board is in the first state;
- a second detection circuit configured to detect whether the board is in a second state when the board is not in the first state, and output a second detection signal when the board is in the second state;
- and
- a control module electrically connected to the first detection circuit and the second detection circuit, configured to receive the first detection signal or the second detection signal, and disconnect power supply to the board according to the first detection signal or the second detection signal;
- wherein the first detection circuit comprises a first light emitting module and a fifth port, an anode of the first light emitting module is electrically connected to the fifth port and the control module, and a cathode of the first light emitting module is connected to a second power supply.
Dependencies are inferred from the claim text.