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What is rectifer?

Updated: 11/2/2022
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15y ago

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Another name for a rectifier is a diode. Diodes are used to change AC into DC. They block current when placed in an electrical circuit on one half of an AC sine wave. As a sine wave leaves zero volts and begins climbing to a positive voltage along with the current, the diode allows the electrons to pass. It conducts until the sine wave reaches zero again. At the start of the negative half of the sine wave the diode blocks the passage of electrons right through to the end of this half cycle. This voltage is known as pulsating DC or half wave rectification. One conductive pulse every cycle. Full wave rectification is when 4 diodes are assembled back to back so that 2 of the diodes are conducting on the positive half cycle and the other 2 diodes are conducting on the negative half cycle. This diode set up is known as a full wave bridge. The output voltage is smoother in this configuration but still has a voltage ripple. This ripple is usually smoothed out with capacitors. This is usually the components of DC power supplies.

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11y ago

The process to remove the unwanted part from a wave.

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What is the difference between a tranformer and rectifer?

A rectifier is used to change ac to dc, but a transformer is used to convert the ac voltage, from ac at certain valtage and current, to another ac voltage with another voltage and current. A rectifier, is either a semiconductor device or a vacuum tube, with two main electrodes (also known as a diode for this reason). It will only pass current of one polarity, blocking current when it is reversed. Putting an AC current through it will cause bursts of current to flow in one direction, forming interrupted DC. A transformer consists of two separate coils of copper wire, wound around the same former and soft iron core. An AC signal on one coil, will cause another to be produced in the second. By altering the number of turns of wire used in each coil, you can select whether the voltage is more or less than the input. If the voltage is increased, the current available becomes less, and vice versa.


How does DC converts into ac?

A rectifier converts from AC to DC power by blocking one half of the AC current. A full-wave bridge rectifier is actually 4 rectifiers combined in such a way that it reverses the blocked half of the power, allowing it to flow through. A standard power supply consists of a transformer (for voltage changes), a rectifier, and additional components for cleaner power (e.g., filters to smooth out the waves of AC power, voltage regulator, etc.).


Is semiconductor diode better than vacuum diode?

at thebeginning of electronic technology the vacuum tube was used in electronic circuit. .but now a days semiconductors are used in electronic circuit


Related questions

Is an transformer or rectifer in a PC power supply?

Rectifer


How does a bridge rectifer differ from just a pair of single diodes?

It has four diodes.


Can you get a headlight to fit a crf 70 Honda?

Yes you need to get new stator to generate the voltage, and a voltage regulator to limit the voltage. Add a switch and headlight. Beatrice cycle sells a stator that's a direct bolt in to replace the stator on the bike (stock stator only generates the spark energy). It will be A/C but will work fine, but only when engine is running. If you want to have a battery added to it you will need to get a voltage regulator/rectifer to make D/C.


What is the difference between a transformer and a rectifer?

A transformer is used to change the value of a voltage applied to the transformer's primary winding to a different voltage value taken from the transformers secondary winding. A rectifier is used to change an alternating current value to a direct current value.


What is the difference between a tranformer and rectifer?

A rectifier is used to change ac to dc, but a transformer is used to convert the ac voltage, from ac at certain valtage and current, to another ac voltage with another voltage and current. A rectifier, is either a semiconductor device or a vacuum tube, with two main electrodes (also known as a diode for this reason). It will only pass current of one polarity, blocking current when it is reversed. Putting an AC current through it will cause bursts of current to flow in one direction, forming interrupted DC. A transformer consists of two separate coils of copper wire, wound around the same former and soft iron core. An AC signal on one coil, will cause another to be produced in the second. By altering the number of turns of wire used in each coil, you can select whether the voltage is more or less than the input. If the voltage is increased, the current available becomes less, and vice versa.


How do you replace voltage regulator on 2003 Honda Shadow?

The voltage regulator is also known as a rectifier in shop talk and is easily replaced. The recifier is held in place with two machine screws. Simply loosen and remove the screws, then disconnect the black plastic connector that connects the rectifier to the wiring harness. There is a black protective cover around the connector which needs to be pulled back a bit in order to unplug the connector. In case you have rectifier problems, such as overheating or the wires to and from it getting fried, resulting in a dead battery and starting problems, then you should check out if there is a short to earth somewhere or any wire connectors gone bad. Also check if there is a short in the stator wiring. Rectifer problems are common on older bikes because the wiring harness and the connectors get worn or shorted. Some people have simply done away with the connectors and soldered the wires together. This is especially true of some of the connectors found below the seat. I know of at least one case where such soldering of wires and elimination of connectors fixed a recurring rectifier problem.


Why 3 phase current is prefered in houses?

Three-phase is not preferred for residences. In most countries, residences are supplied with single-phase services. There are exceptions, such as in Cyprus, where three-phase residential services are common.In Europe, low-distribution is by 400/230-V three-phase, four-conductor (three line conductors and one neutral), overhead or underground cables thay run the length of a residential street. Individual houses are then fed between alternate line conductors and the neutral conductor to ensure that the overall three-phase load is balanced.Single Phase current is run to Homes. 3-Phase is run to businesses.It is expensive to transmit and carry through-out the electrical grid, and would be prohibitively expensive to run through a residential neighborhood.3-Phase power (Normally delivered through the electrical grid as Wye (Star) is preferred in businesses )and especially manufacturing/industrial) because of the ability to more efficiently run motors and deliver higher amounts of power/energy to the final destination (when compared to a single phase system over a pair of wires.)What makes 3-phase so special is that there are no zero-volt (zero power) dropouts every time that the sinusoidal waveform crosses zero and starts conducting fom positive to negative and from negative back to positive. This creates big gaps of zero energy 120x per second (in North America).3-Phase power has three phases 120 degrees apart from one-another, and is always guaranteed to have at least two phases "almost " fully "on" when the remaining phase is crossing zero. Therefore, there are no dropouts that require momentum and collapsing electromagnetic fields to "sustain" the energy in a motor as with single phase systems.The same is true for high current power supplies... don't need such big capacitors to sustain a DC Voltage level when you can pick power from any of three phases.Motor designs can be smaller as you always have one point in the motor (normally 2) that is energized at any given time.The best way to understand this is to look at the 6-diode bridge rectifer model and watch a summation in time of the unfiltered DC output... constant power (always a ripple), but never a dropout as we see in single phase.


How does DC converts into ac?

A rectifier converts from AC to DC power by blocking one half of the AC current. A full-wave bridge rectifier is actually 4 rectifiers combined in such a way that it reverses the blocked half of the power, allowing it to flow through. A standard power supply consists of a transformer (for voltage changes), a rectifier, and additional components for cleaner power (e.g., filters to smooth out the waves of AC power, voltage regulator, etc.).


Is semiconductor diode better than vacuum diode?

at thebeginning of electronic technology the vacuum tube was used in electronic circuit. .but now a days semiconductors are used in electronic circuit