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Physics Guide: Half-Wave Rectifier

This document summarizes key aspects of a half wave rectifier physics project. It describes that a half wave rectifier only allows current flow for half of each alternating current cycle. It defines important terms like peak inverse voltage, ripple factor, efficiency, transformer utilization factor, form factor, and peak factor as they relate to analyzing the performance of a half wave rectifier circuit. Diagrams of the circuit and output waveforms are included to illustrate these concepts.

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Rohan Kumar
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54 views14 pages

Physics Guide: Half-Wave Rectifier

This document summarizes key aspects of a half wave rectifier physics project. It describes that a half wave rectifier only allows current flow for half of each alternating current cycle. It defines important terms like peak inverse voltage, ripple factor, efficiency, transformer utilization factor, form factor, and peak factor as they relate to analyzing the performance of a half wave rectifier circuit. Diagrams of the circuit and output waveforms are included to illustrate these concepts.

Uploaded by

Rohan Kumar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOC, PDF, TXT or read online on Scribd
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PHYSICS PROJECT

ON
HALF WAVE RECTIFIER
Rectifier Circuit
The arrow on the diode ( )
indicates the direction of the
current in the diode
Because of the diode, the
alternating current in the load
resistor is reduced to the positive
portion of the cycle

Half-Wave Rectifier
The solid line in the graph is the
result through the resistor
It is called a half-wave rectifier
because current is present in the
circuit during only half of each
cycle

THE HALF WAVE RECTIFIER

input vol
Transient Response
Half Wave Rectifier
Peak Inverse Voltage
When the input voltage reaches its
maximum value Vm during the
negative half cycle the voltage across
the diode is also maximum. This
maximum voltage is known as the
peak inverse voltage. Thus for a half
wave rectifier

Let Vi be the voltage to the primary of


the transformer. Vi is given by

where Vr is the cut-in voltage of the


diode.

Ripple Factor
Ripple factor is defined as the ratio of
rms value of ac component to the dc
component in the output.
Ripplefactor

.
Vav the average or the dc content of the
voltage across the load is given by

RMS voltage at the load resistance can


be calculated as

Ripple factor
Efficiency
Efficiency, h is the ratio of the dc
output power to
Transformer Utilization Factor
Transformer Utilization Factor, TUF
can be used to determine the rating of
a transformer secondary.

In half wave rectifier the rated voltage


of the transformer secondary is
But actually the RMS current flowing
through the winding is only .

Form Factor
Form factor is given by,
Peak Factor
Peak factor is given by,

Result: -
The output waveform may be observed
in the waveform viewer.

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