Powering electronics prototype breadboard

There’s a number of options for powering an electronics breadboard so that you can easily test out temporary circuits.

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Common power sources

  • Battery
  • Breadboard power supply
  • Bench power supply
  • Voltage regulator
  • USB

This is a new page, which I will further update soon!

Additional power supply topics:

I love the power supply used in the video below. However, It’s short circuit protection causes problems when I want to charge my practically 0 ohm internal resistance super capacitors. Therefore, I plan to use parallel 5Ω resistors to provide just enough resistance to keep the short circuit protection from kicking in. Thus, allowing a constant current without triggering the short circuit protection.

High wattage low resistance resistors prevent power supply short circuit protection cut off

Portable power supply current display compared to multimeter measurement and ohms law


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