What Are The Disadvantages Of Unidirectional Or Half-wave Ac Voltage

1.	What Are The Disadvantages Of Unidirectional Or Half-wave Ac Voltage Controller?
Answer» Due to the presence of diode on the circuit, the CONTROL RANGE is limited and the EFFECTIVE RMS output voltage can be VARIED between 70.7% and 100%. The INPUT current and output voltage are asymmetrical and contain a dc component.If there is an input transformer, saturation problem will occur It is only used for low power resistive load.

What Are The Disadvantages Of Unidirectional Or Half-wave Ac Voltage Controller?

Answer»

Due to the presence of diode on the circuit, the CONTROL RANGE is limited and the EFFECTIVE RMS output voltage can be VARIED between 70.7% and 100%.
The INPUT current and output voltage are asymmetrical and contain a dc component.If there is an input transformer, saturation problem will occur
It is only used for low power resistive load.