Breadboard Power Supply

Background

A power supply made to plug in to a breadboard to power your circuits.

 

An LED or light-emitting diode is a type of semiconductor that emits light when current flows through it. LEDs have polarity and only allow current flow in one direction from the anode (+) to cathode (-). LEDs have a specific forward voltage i.e. threshold voltage at which it will turn on. This value is typically between 1.8 and 3.3V depending upon the specific color chemistry. LEDs want to maintain and hold that forward voltage. If there is too much voltage across them or too much current flowing through them, they will blow. Typically, they only want 10-20 mA of current.

   

 

Hardware Description

• Plugs nicely into power rails of a solderless breadboard.
• Has two different supplies for the breadboard. Can independently select whether you want 5V or 3.3V using a jumper.
• Requires 6.5-9.0 V input. Input supplied via a barrel jack using the wall adapter provided or a 9V batter.
• Max output current of 700 mA.
• Do not try to power it via USB! USB port is an output.
• The white button is a press in on/off Switch. Has a small power-present LED when board is powered.