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Half Wave Rectifier
Transcript of Half Wave Rectifier
In other words,the diode will allow current to
flow only during the positive half of the
AC sine wave. During the negative half cycle of the input voltage the polarity of the secondary voltage gets reversed.
As a result, the diode is reverse biased.
Practically no current flows through the circuit and almost no voltage is developed across the resistor.All input voltage appears across the diode itself.
Hence we conclude that when the input voltage is going through its positive half cycle, output voltage is almost the same as the input voltage
During the negative half cycle no voltage is available across the load.
This explains the unidirectional pulsating dc waveform obtained as output.
The process of removing one half the input signal to establish a dc level is aptly called half wave rectification. The Half-Wave Rectifier Circuit 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.
π = ~ 3.14159