| 摘要 |
Provided is a high-voltage direct current soft start circuit, which comprises: a first end of a first switch is connected to a negative electrode of a high-voltage direct current, a first end of a second switch is connected to the negative electrode of the high-voltage direct current, and a control drive unit is connected to the first switch, the second switch and a load respectively, wherein a first part of a connector is connected to the control drive unit and the first part of the connector communicates with a second part of the connector upon power-on to trigger the control drive unit to drive the first switch to turn on; after driving the first switch to turn on, the control drive unit delays preset time, drives the second switch to turn on, and drives the load to start after the second switch turns on. Plugging and disconnecting the connector without an electric arc is implemented, an arc discharge is prevented from occurring, hot swapping without the electric arc is implemented for a high-voltage direct current power apparatus, and a volume of the connector can be made small without improving the connector itself. |
