Author Topic: Safely Power Road Rage Prototyping Rig  (Read 499 times)

selatape

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Safely Power Road Rage Prototyping Rig
« on: January 03, 2020, 10:19:46 AM »
Hi Everyone,

Just getting back into pedal building after a long break!

I decided to build a prototyping rig as described in the madbean tutorial and have used the Road Rage circuit to give me the different voltages +9, +15 , +18, -9v DC etc.

My question, and possibly a daft one, is whether it is safe to power this breadboard/rig with my isolated power supply or if I should stick with using a 9v battery?

I know the road rage charge pump circuit has polarity protection but I'm not sure if this helps if I short something by accident while breadboarding. Dont want to mess up my power supply.

Thanks for your help!

diablochris6

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Re: Safely Power Road Rage Prototyping Rig
« Reply #1 on: January 03, 2020, 10:27:48 AM »
I would think that as long as things are clearly labelled, you shouldn't have an issue. You are more likely to damage the components of the Road Rage or whatever circuit you are testing rather than the power supply.
Build guides of my original designs and modifications here

selatape

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Re: Safely Power Road Rage Prototyping Rig
« Reply #2 on: January 05, 2020, 04:58:46 PM »
Thanks. Really wasn't sure. I know without the road rage circuit it's a bad idea to breadboard with a power supply. If there was a short to ground and no quick fuse on the power supply it would almost certainly do some damage. A battery on the other hand would just drain really fast.

HamSandwich

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Re: Safely Power Road Rage Prototyping Rig
« Reply #3 on: January 05, 2020, 05:31:34 PM »
I think you’d be surprised at the robustness of some of today’s power supplies. I breadboard with a 1spot and have had no issues. I believe it has some shut down protection that cycles every few seconds if there’s adverse conditions.

selatape

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Re: Safely Power Road Rage Prototyping Rig
« Reply #4 on: January 13, 2020, 03:48:26 PM »
Appreciate the reassurances. Never opened one up so wasn't sure!