同时采用软启动电路防止浪涌电流，保护功率开关管。
To protect power switches, soft-starting circuit was designed to overcome the surge current.
软启动电路设计保证了电极和喷嘴等易损件的长寿命耐用。
Soft start-up circuit designed to ensure that the electrodes and nozzle, etc, wearing parts of long life and durable.
带高温补偿软启动电路的设计可以保证电路在高温下可以正常启动来避免浪涌电流。
To get a better reliability, over current reminder circuit and the soft-start circuit with thermal protection circuit was designed in this project.
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