Sunday, January 1, 2012

Bench PSU

In previous post, I said I want to build an opamp circuit to amplify the TPS signal by x3. The TPS requires 5V to be applied. Rather than just take a common LM7805, I thought, I prefer to have an adjustable PSU.

So, here we go!

I'm too lazy to make my own PCB, so, a basic kit would be nice.

The subjected case.

Cutting perfboard for the pass-transistor.

Drilling hole for heatsink.

Hole for the pot.

Almost done...

It runs!

View from above.

Backside of it.

Powering a load.

Yeah, I know I've done a blog post before on modding PC PSU as bench PSU, but, I don't really like the metal nature of the housing. 

Keep busy! 

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