Power supply with short circuit protection

[superdhebz]

Hi! Do you guys have a sample schematic diagram of a power supply with short circuit protection?
0 to 30 volts, 3 amperes.

 

[Dragon Tamer]

the best way to have some sort of short circuit protection, is to use fuses. 3 amps is a pretty common value you should be able to find one at a hardware store or at radio shack. as for the power supply try this: CIRCUIT!!!

 

[Vizier87]

you'll edit your post, dragon.

 

[crutschow]

the best way to have some sort of short circuit protection, is to use fuses. 3 amps is a pretty common value you should be able to find one at a hardware store or at radio shack.

The transistor is usually faster than the fuse.

It's much better to have current limiting built into the supply.

Edit: **broken link removed** shows a 3A regulator design using an LM350 3-terminal regulator.

 

[BrownOut]

Just find a voltage regulator with built-in over voltage protection. There are lots available.

 

[crutschow]

Just find a voltage regulator with built-in over voltage protection. There are lots available.

I assume you mean short circuit protection since that's not the same as over voltage protection.

 

[BrownOut]

You assumed correctly. I think I meant to write "over current."

 

[Dragon Tamer]

you'll edit your post, dragon.

yes i did you must be psychic

 

[Vizier87]

yes i did you must be psychic

LOL. crystal balls replaced by liquid crystal displays.

 

[superdhebz]

Thank you.