| 摘要 |
<p>Disclosed is an emergency control circuit, comprising: a switch which is connected to a main power supply grid through a power line; a switch power supply which is connected to the switch; an electric device which is connected to the switch power supply; a grid detection unit which is connected to the main power supply grid and is used for detecting whether the grid is disconnected or not; a switch detection unit which is connected to the switch and is used for detecting whether the switch is disconnected or not; a battery which is connected to the electric device and is used for providing a standby power supply for the electric device; and a control unit which is connected to the grid detection unit and the switch detection unit, is used for starting up the battery to supply power to the electric device when the grid is disconnected and the switch is conducted, and is used for closing the electric device when the switch is disconnected. The emergency control circuit has an emergency control function, and is convenient to operate.</p> |
