Amplifier Class | Description | Conduction Angle |
Class-A | Full cycle 360o of Conduction very low efficiency at around 30% | θ = 2π |
Class-B | Half cycle 180o of Conduction | θ = π |
Class-AB | Slightly more than 180o of conduction with conversion efficiencies reaching about 50% to 60%. | π < θ < 2π |
![](https://www.malabdali.com/wp-content/uploads/2021/08/classA.png)
![](https://www.malabdali.com/wp-content/uploads/2021/08/amplifier-amplifier15.gif)
![](https://www.malabdali.com/wp-content/uploads/2021/08/classB.png)
![](https://www.malabdali.com/wp-content/uploads/2021/08/amplifier-amplifier16.gif)
![](https://www.malabdali.com/wp-content/uploads/2021/08/classAB.png)
![](https://www.malabdali.com/wp-content/uploads/2021/08/amplifier-amplifier17.gif)