I was trying to implement a H-Bridge circuit but had a lot of failures. I'm not really good with electronics, just some basic knowledge.
So I've started by creating an buffer to switch the full voltage of a 12V power supply by using NPN and PNP transistors. This is the switch for the power supply.
It works like a charm. Just as I expected.
Then I moved this switch into the H-Bridge circuit to switch my 12V supply On/Off on each side of the bridge. So I added 2 transistors for the bridge to ground the current. But I'm having a massive voltage drop and I don't know why. I hope you could help me with this. Here is my bridge schema.
The bridge logic works fine but I expect to get 12V instead of 3V on the motor it self.