Soft-start switch circuit system

The invention relates to a soft-start switch circuit system comprising a power supply, a load connected with the power supply, and a switch used for switching on the power supply and the load. The switch is equipped with a soft start unit. Through control of a time base circuit and combined use of triodes, the voltage rises steadily. By using the circuit system, the voltage applied by the power supply to the load can be well controlled, and rises slowly. The soft-start function of the whole system is realized. The load motor is well protected, the service life thereof is prolonged, and the maintenance cost is reduced. The soft-start switch circuit system is very practical. 本发明涉及种软启动开关电路系统，包括电源、与电源连接的负载以及用于接通电源与负载的开关，在所述的开关上设有软启动单元，通过时基电路的控制以及三极管的组合使用，实现电压的稳步上升。采用了上述电路系统之后，可以很好的控制电源对负载的电压，慢慢上升，实现整个系统的软启动功能，很好的保护了负载电机，延长了其使用寿命，并且降低了维修成本，非常实用。