Firstly id like to say hello, this is my first post, and a heads up i'm an electronics n00b, so here goes.
I have been trying to come up with a solution for having my arduino signal a H bridge to get my 12v DC motor going clockwise and anticlockwise with a switch.
I have got the programming sorted and here is how i was hoping to go about it.
I have built the following H Bridge: BEAM Circuits -- Steve Bolt's H-bridges (have checked and double checked it appears to be wired up correctly) - (but have used bc639/bc640 instead of the BC327/25)
So my intention was to have the signal wire from port lets say 11,12 run into where it says A & B in that image. Then providing LOW/HIGH or HIGH/LOW , i expect to get the reversal of the motor. Am i on the right track?
Additionally i wanted to power the arduino and the motor from the same power source. Essentially i wanted to run four wires from my power source (through a 12v regulator) 2 to the inputs on the H bridge and 2 to the +,- of the arduino power source.
Can anyone give me any advice before i move forward?
John: I thought the "2-5V" was determined by the the transistors, so i changed them to ones i thought could handle more? Is that the right way to go about it??
No.
Show me a transistor that can't handle 5V.
It is a matter of the voltage drive to the transistors.
Do a google image search for H-drive for schematics, you will see you need more than just the four transistors if you want a voltage higher than the switching signal.
