Impedance detection circuit and method, equipment mainboard and electronic equipment
The invention provides an impedance detection circuit and method, an equipment mainboard and electronic equipment, and is applied to the technical field of computers, the circuit comprises a reference voltage circuit, a detection circuit and a control circuit, and a standby power supply on the equip...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention provides an impedance detection circuit and method, an equipment mainboard and electronic equipment, and is applied to the technical field of computers, the circuit comprises a reference voltage circuit, a detection circuit and a control circuit, and a standby power supply on the equipment mainboard provides working voltage for the reference voltage circuit, the detection circuit and the control circuit respectively. The reference voltage circuit provides reference voltage for the detection circuit, the detection circuit detects the ground impedance of the power supply to be detected based on the reference voltage and outputs a detection result, and the control circuit controls the working state of the power supply to be detected based on the obtained detection result. The impedance detection circuit provided by the invention is integrated on the equipment mainboard provided with the standby power supply, and the standby power supply provides the working voltage for the impedance detection circu |
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