Class B Push Pull Amplifier - Solid-state Devices and Analog Circuits Day 7, Part 2

hello welcome to RSD Academy I'm Bob daml and in this video we're going to look at class B pushpull power amplifiers in the previous video we discussed how we could make a Class A power amplifier all we have to do is Select these resistors such that as the voltage goes up and down on the input that when the voltage is at its very lowest point whatever voltage that is that this voltage does not go low enough that this transistor starts to turn off so that no matter where it is in this cycle at the top or the bottom we continually have this transistor turned on to some degree so as this voltage goes up more current flows through here as the voltage goes down less current flows that causes the magnetic field across the Transformer to expand and collapse transferring Energy across and making the speaker to go back and forth and it's able to operate through the full 360° of the input cycle