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What is the difference between clippers and half-wave rectifiers?
ShaunMarshgp7659
A clipper is a device designed to prevent the output of a circuit from exceeding a predetermined voltage level without distorting the remaining part of the applied waveform.
A clipping circuit consists of linear elements like resistors and non-linear elements like junction diodes or transistors but it does not contain energy-storage elements like capacitors. Clipping circuits are used to select for purposes of transmission, that part of a signal wave form which lies above or below a certain reference voltage level.
In half wave rectification of a single-phase supply, either the positive or negative half of the AC wave is passed, while the other half is blocked. Because only one half of the input waveform reaches the output, mean voltage is lower. Half-wave rectification requires a single diode in a single-phase supply , or three in a three-phase supply. Rectifiers yield a unidirectional but pulsating direct current; half-wave rectifiers produce far more ripple than full-wave rectifiers, and much more filtering is needed to eliminate harmonics of the AC frequency from the output.
Half-wave rectifier
The no-load output DC voltage of an ideal half wave rectifier for a sinusoidal input voltage is:
Where:
Vdc, Vav - the DC or average output voltage,Vpeak, the peak value of the phase input voltages,Vrms, the root-mean-square value of output voltage.
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