![]() So the polarity of the output terminals keeps unchanged and obtains a unidirectional current through the load.Īverage voltage, V average = V m/π | Average Current, Iaverage = I m/π ![]() And on negative half cycle (A- Negative & B- Positive), the diode will be reverse biased and prevents the current to flow in the opposite direction. Thus it utilizes only the one-half cycle of the input signal.ĭuring the positive half cycle (A- Positive & B- Negative) of the signal, the diode will be forward biased and conducts the current through the load resistance. Half Wave rectifier theoryĪ half wave rectifier clips the negative half cycles and allows only the positive half cycles to flow through the load. It can be done by either blocking the reverse flow of current or by redirecting the reverse flow to one direction. In simple words, a rectifier converts the bi-directional flow of current to a unidirectional flow, which maintains a constant polarity across the load. ![]() ![]() Where an Alternating current periodically changes its direction of the current, that is an alternating polarity at the terminals.Ī rectifier is a circuit that converts AC to DC and this conversion process is called rectification. Direct current flows only in one direction, which means it has a constant polarity across its terminals.
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