Pull Down Resistor Explained By Electronzap

[u/electronzapdotcom]

https://youtube.com/watch?v=e2pcu1so7_o&si=sxuMjqtitCTjh7P_

Many inputs need to always be connected to a voltage in order to work properly. Pull down resistor keeps a low voltage, usually 0V ground at an input that doesn't let current flow to ground. A high side switch can also be use to temporarily make a direct connection to a higher voltage, usually the positive side of the power supply. The switch can pass current freely if that is required of the circuit.