Want a protect circuit

[shalky]

A serial LC resonance circuit need to be protected from big current , so I want to use a current check circuit and decide if the power switch cut off. A few seconds delay time is needed.

Any suggestions and ideas will be helpful.

Regards

 

[uk]

please be more spesific.

 

[Lord Loh.]

Do you mean you need a delayed starter?

You could use a 555 timer and connect it's output to a transistor to power your LC circuit.

 

[Lucifre]

hmmm what about slow blow fuse? that works too. You need to be more specific as to what your needs are

 

[shalky]

Finally, I use a MCU to process the power switch and make a soft-start circuit to protect. Thanks to everyone helped me !

 

[Frank_H]

Use an attenuator