Automatic power-off device and system
An automatic power-off device and system can be used in the financial field, the computer technology field or other fields. The automatic power-off device comprises a first power supply; a second power supply; the input end of the first relay can be electrically connected with the first end of a pow...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | An automatic power-off device and system can be used in the financial field, the computer technology field or other fields. The automatic power-off device comprises a first power supply; a second power supply; the input end of the first relay can be electrically connected with the first end of a power switch of the electronic equipment, and the output end of the first relay can be electrically connected with the second end of the power switch; the control end of the second relay is connected with the first power supply, the input end of the second relay is connected with the second power supply, the output end of the second relay is connected with the control end of the first relay, and when the first power supply stops supplying power, the input end and the output end of the second relay are conducted; and the second power supply is configured to control conduction between the input end and the output end of the first relay when the input end and the output end of the second relay are in a conduction state, |
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