Working of Three Phase Half Wave Rectifier
The below figure shows the input of a three-phase AC supply. You can see that the input of three-phase AC is like that of three single-phases separated by an equal time gap. So when we place a half-wave rectifier in each phase wire, the half-wave rectifier allows it to pass the positive half cycle and prevents the flowing of current in the negative half cycle. Thus it can convert AC to DC.
If we consider the red phase alone, In the positive half cycle diode acts as a short circuit and it allows to pass current through it. In a negative half cycle, the diode acts as an open circuit and blocks the flow of current. You can see that in the output waveform given below, red phase voltage is present when it is in the positive half cycle and it is not visible in the negative half cycle.
Similarly, other phases are also rectified by using a diode.
From the output of a three-phase rectifier, You can see that its voltage does not fall into zero like in that of a single-phase rectifier as it uses three phases and at any time any of the three phases will have a positive half-cycle. Thus it has a better supply than that of a single-phase rectifier.
Half Wave Rectifier
A Half-wave rectifier is an electronic device that is used to convert Alternating current (AC) to Direct current (DC). A half-wave rectifier allows either a positive or negative half-cycle of AC to pass and blocks the other half-cycle. Half-wave rectifier selectively allows only one half-cycle of the AC input voltage to pass through, producing a pulsating DC output voltage across the load resistor. While it’s a simple and cost-effective way to convert AC to DC.
In this article, we will go through Half wave Rectifier, First, we will begin with the basics of the rectifier, Then we will go through the definition of the half wave rectifier, then we will go through a diagram of half wave rectifier, and working principle of half wave rectifier, Also we will go through capacitor filter in half wave rectifier and three phase half wave controlled rectifier. At last, we will conclude our Article with Advantages and Disadvantages, Application and Some FAQs on Half Wave Rectifier.
Table of Content
- What is a Rectifier?
- Rectifier Components
- Types of Rectifiers
- Half Wave Rectifier
- Working
- Half Wave Rectifier with Filter
- Three Phase Half Wave Rectifier
- Formulas
- Solved examples