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Why a full wave rectifier is preferred over a half wave rectifier?
Wiki User
∙ 14y ago
The a.c. component, or ripple, produced by the 4-diode (full wave) bridge rectifier is the same as that produced by the 2-diode full wave rectifier.
The bridge is connected across the secondary winding of a transformer.
The 2 diodes of the other type of full wave rectifier are each connected to one end of a winding, but that winding requires a center tap.
For any desired value of d.c. after rectification, the a.c. voltage of the 2-diode rectifier winding has to be twice that of the winding required for the bridge.
Wiki User
∙ 12y ago
Wiki User
∙ 15y agoTo accomplish, in each case, full wave rectification, the advantage of the four diode (full bridge) version does not require use of a center tapped transformer. That is, a less expensive simpler transformer that requires fewer windings would be needed. To achieve the equivalent circuit using only two diodes requires use of a center tapped transformer.
See:
http://en.wikipedia.org/wiki/Rectifier
Wiki User
∙ 13y agothere are two types of full wave rectifier we use in electronic circuits
1-center tap rectifier and
2-bridge wave rectifier
as center tap rectifier is bulky due to a tansformer which shoulld be center taped and also this transformer cost is more than simle transformer
now in case of bridge wave rectifie ransfer we use is simple and not so epensive
many says that that bridge wave rectifier is expensive due to 4 diode used in the circuit but the cost of a small diode is not more than 2 rupee
so hats why we refer bridge wave rectifier than cener tap rectiferr
Wiki User
∙ 11y agoYou would use a bridge rectifier if the transformer is a simple winding with two ends. A full-wave rectifier with two diodes is used when the transformer secondary is centre-tapped.
Wiki User
∙ 14y agoLess ripple to filter out of the D.C.
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What is the advantages of halt wave rectifier over full wave rectifier?
Half wave rectifier makes the the sinusoidal wave uni-direction only in one half cycle and leave the other but in full wave rectifier both the cycles are made uni-directional.
What is advantage of precision full wave rectifier over precision half wave rectifier?
Either less ripple voltage with the same filter capacitance, or similar ripple voltage with smaller filter capacitances (and thus physically smaller filter capacitors).
Why bridge rectifier is prefer over center type rectifier for low voltage applications?
there is no need of bulky centre tap in a bridge rectifier. TUF(transformer utilisation factor) is considerably high. output is not grounded. diodes of a bridge rectifier are readily available in market. *the PIV(peak inverse voltage) for diodes in a bridge rectifier are only halfof that for a centre tapped full wave rectifier,which is of great advantage.
What is the Difference between half wave and full wave rectification?
Half-wave rectificationA half wave rectifier is a special case of a clipper. In half wave rectification, either the positive or negative half of the AC wave is passed easily, while the other half is blocked, depending on the polarity of the rectifier. Because only one half of the input waveform reaches the output, it is very inefficient if used for power transfer. Half-wave rectification can be achieved with a single diode in a one phase supply.In half wave rectification, 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, it is very inefficient if used for power transfer. Half-wave rectification can be achieved with a single diode in a one phase supply, or with three diodes in a three-phase supply.in half wave rectifier only one diode is there. The diode will be forward biased in the positive half cycle and reverse biased in the negative half cycle. So the out put will be available only during the positive half cycle and the out put will be unidirectional.Full-wave rectificationA full-wave rectifier converts the whole of the input waveform to one of constant polarity (positive or negative) at its output. Full-wave rectification converts both polarities of the input waveform to DC (direct current), and is more efficient. However, in a circuit with a non-center tapped transformer, four diodes are required instead of the one needed for half-wave rectification. (See semiconductors, diode). Four rectifiers arranged this way are called a diode bridge or bridge rectifier: For single-phase AC, if the transformer is center-tapped, then two diodes back-to-back (i.e. anodes-to-anode or cathode-to-cathode) form a full-wave rectifier (in this case, the voltage is half of that for the non-tapped bridge circuit above, and the diagram voltages are not to scale).In a full wave rectifier during each half cycle one of the diode will be forward biased and output will be available across the load resistor. So we get continuous dc output throughout the cycle.no.. of diods 1 in half wave rect....
How can a capacitor reduce the effects of ripple voltage?
The smoothing capacitor converts the full-wave rippled output of the rectifier (which is left over AC signal) into a smooth DC output voltage A smoothing capacitor after either a half-wave or full-wave rectifier will be charged up to the peak of the rectified a.c. Between peaks of the a.c. the stored voltage will drop by a degree dependent on how much current is drawn from it by the load. The larger the value of the capacitor, the less drop there will be, and therefore less ripple when loaded.
Why full wave rectifier is preffered over half wave rectifier?
Efficiency is double in case of full wave rectifier.
Is there any application where center tap rectifier is preferred over bridge rectifier?
For a center tapped full wave rectifier transformer secondary gives a voltage that is 2Vm. For a bridge rectifier it is Vm.
What is the advantages of halt wave rectifier over full wave rectifier?
Half wave rectifier makes the the sinusoidal wave uni-direction only in one half cycle and leave the other but in full wave rectifier both the cycles are made uni-directional.
What is the advantage of half wave rectifier over full wave rectifier?
The advantage of a full wave rectifier is that it produces less ripple and the ripple has a higher frequency, making it easier to filter.The advantage of a half wave rectifier is it is simpler and less expensive as it needs fewer components.Which is best in a given application however requires making other tradeoffs that are out of scope for this question as they cannot be determined without knowing the details of the specific application. So neither is universally the best.
What is advantage of precision full wave rectifier over precision half wave rectifier?
Either less ripple voltage with the same filter capacitance, or similar ripple voltage with smaller filter capacitances (and thus physically smaller filter capacitors).
Why use half wave rectification and what are its advantages over full wave rectification?
A full-wave rectifier will provide an output through both the positive and negative halves of the AC sine wave. The half-wave rectifier will only provide an output for half the cycle. The filtered outputs of both rectifiers can be "smoothed" well, but the higher the load on the half-wave rectifier, the more the output voltage will vary across a cycle of input power. This results in higher ripple and makes regulation a bit more difficult. The full-wave rectifier will provide an output through both the positive and negative halves of the sine wave. It effectively "inverts" the negative half of the cycle and provides two "pulses" of power per cycle as opposed to one pulse per cycle for the half-wave rectifier. The full-wave rectifier might use a pair of diodes and a center tapped transformer, or might use four diodes in a full wave bridge configuration and a transformer with no center tap.
What is the advantage of using the bridge rectifier over the conventional full wave circuit?
Output voltage is higher!!!
What are the advantages of half-wave rectifiers over full-wave rectifiers?
The full-wave rectifier conducts on every half cycle, whereas the half-wave rectifier conducts on every other half cycle.This halves the average current on each diode, halving the power dissipated by the diodes.It doubles the ripple frequency, making filtering easier.Since the ripple frequency is doubled, the peak-to-peak ripple voltage is approximately half, which means that less capacitance is required in the filter capacitor.Since the peak-to-peak ripple voltage is lower, the head-room between filtered and regulated voltage is less, meaning less power is dissipated by the regulator.Full wave rectifiers give a smaller output voltage ripple, resulting in a smoother output waveform. However, depending on the design, the output on a full wave rectifier may be slightly less (like around 0.4V less) than that of a half wave rectifier. This is normally due to the voltage drop increasing due to the presence of additional diodes in the circuit.
Why bridge rectifier is prefer over center type rectifier for low voltage applications?
there is no need of bulky centre tap in a bridge rectifier. TUF(transformer utilisation factor) is considerably high. output is not grounded. diodes of a bridge rectifier are readily available in market. *the PIV(peak inverse voltage) for diodes in a bridge rectifier are only halfof that for a centre tapped full wave rectifier,which is of great advantage.
What is the advantage of using the bridge rectifier over the two diode form in the full wave rectification?
the ease of filtering their outpot voltages
Working of half wave rectifier?
AnswerA half-wave rectifier converts an alternating voltage (such as your wall socket) into a pulsing DC signal. This can be further processed with circuits called 'filters' and 'regulators' to produce a steady DC voltage (such as a battery.) The basic half-wave rectifier is a 'diode'. This is an electrical one-way street that only allows flow in one direction. When the AC voltage is going one direction, the diode allows current flow. When the AC is of the opposite direction, the diode blocks current flow. Since only one half of the full AC signal is allowed to pass, it is called a half-wave rectifier. Using 2 diodes and a center tapped transformer, or 4 diodes arranged in a bridge rectifier circuit, the entire wave can be converted and it is called a full-wave rectifier. Try researching 'power supplies' for more information.
What is the Difference between half wave and full wave rectification?
Half-wave rectificationA half wave rectifier is a special case of a clipper. In half wave rectification, either the positive or negative half of the AC wave is passed easily, while the other half is blocked, depending on the polarity of the rectifier. Because only one half of the input waveform reaches the output, it is very inefficient if used for power transfer. Half-wave rectification can be achieved with a single diode in a one phase supply.In half wave rectification, 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, it is very inefficient if used for power transfer. Half-wave rectification can be achieved with a single diode in a one phase supply, or with three diodes in a three-phase supply.in half wave rectifier only one diode is there. The diode will be forward biased in the positive half cycle and reverse biased in the negative half cycle. So the out put will be available only during the positive half cycle and the out put will be unidirectional.Full-wave rectificationA full-wave rectifier converts the whole of the input waveform to one of constant polarity (positive or negative) at its output. Full-wave rectification converts both polarities of the input waveform to DC (direct current), and is more efficient. However, in a circuit with a non-center tapped transformer, four diodes are required instead of the one needed for half-wave rectification. (See semiconductors, diode). Four rectifiers arranged this way are called a diode bridge or bridge rectifier: For single-phase AC, if the transformer is center-tapped, then two diodes back-to-back (i.e. anodes-to-anode or cathode-to-cathode) form a full-wave rectifier (in this case, the voltage is half of that for the non-tapped bridge circuit above, and the diagram voltages are not to scale).In a full wave rectifier during each half cycle one of the diode will be forward biased and output will be available across the load resistor. So we get continuous dc output throughout the cycle.no.. of diods 1 in half wave rect....
