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How does a half wave rectifier work?
A half wave rectifier consists of a single diode and a load resistance. It only allows the positive part of an AC signal and during the negative half cycle the diode will act as reverse bias and the voltage at the output resistance will be zero.
How to simulate a full wave rectifier in PSpice?
As you have placed the parts in case of full wave rectifier do the same with half wave. Adjust the input settings and the analysis setup settings and simulate the circuit. The output of the half wave rectifier is shown in the figure below,
Which is the opposite of a rectifier?
The opposite of a rectifier is an inverter. Two main types of a simple rectifier are: A half wave rectifier consists of a single diode and a load resistance. It only allows the positive part of an AC signal and during the negative half cycle the diode will act as reverse bias and the voltage at the output resistance will be zero.
The circuit diagram of a single phase half wave controlled rectifier with RL load is shown below. This circuit consists of a thyristor T, source Vs and RL load. The output voltage is the voltage across the load and shown as Vo.
What are the advantages of uncontrolled full wave rectifier?
Uncontrolled Full wave rectifier with RL load With Free Wheel Diode: Advantage in case of RL load is that the freewheeling diode cuts out negative part of the AC voltage not to appear across the load terminals. Thus it prevents decreasing the value of the rectified DC voltage.
Why does the negative portion of the RL wave increase?
In other words, in case of RL without freewheeling diode voltage wave across the load has a positive and a negative portion, the negative portion increases as load inductance increases (due to the current delay). This reduces the (Average) DC voltage across the load.
How is the voltage of a controlled rectifier calculated?
The time period of the voltage waveform is 2π and it is equal to VmSin (wt) for wt = α to wt = β. For 0<α and β<2π, the value of load voltage is zero. Therefore, the average voltage of this controlled rectifier with RL load may be calculated as below.
How to calculate avg.load voltage with RL load?
Now, we will apply the above formula to calculate the avg. load voltage of single phase half wave controlled rectifier with RL load. For this, carefully observe the waveform of load voltage. The time period of the voltage waveform is 2π and it is equal to VmSin (wt) for wt = α to wt = β. For 0<α and β<2π, the value of load voltage is zero.
How is the phase of a half wave circuit controlled?
A single phase half wave controlled rectifier is a thryristor based circuit which produces output voltage for positive half of the supply voltage. However, the phase relationship between the initiation of load current and supply voltage can be controlled by changing firing angle.