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Why is the direction of diodes in alternator diode trio is opposite to the direction of diodes in the rectifier bridge?


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Answered 2007-12-21 14:05:38

A three phase alternator will have six diodes in the rectifier bridge, three with their anodes connected to the phases, and cathodes commoned to the positive terminal, and three with the cathodes connected to the phases, and anodes commoned to the negative terminal, which is likely the housing of the alternator. The trio diodes arrangement will match the positive rectifiers, i.e. anodes to the phase connections, cathodes (denoted usually by a stripe around the body on small diodes), connected to the D+ terminal

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How do you take both ac and DC from car alternator?

An Alternator produces AC (the clue is in the name) Alternating Current.Add in a Bridge rectifier, and it produces DC (Direct current).Basically the alternator "alternates" or switches the voltage, and the rectifier switches the opposite way, in perfect time, turnign the AC into DC.


Rectifiers used for most larger alternator systems are which ones?

a full-wave bridge rectifier


What is the advantage of bridge rectifier over centre tapped rectifier?

in bridge rectifier


What is the function of diode in bridge rectifier?

The same as in any rectifier circuit: allow current to flow in only one direction through the rectifier, thereby converting AC to DC.


How many diodes in a bridge rectifier?

Bridge Rectifier DiodesIn a "bridge" rectifier there is 4 diodes In a "full wave" there are 2 diodes.In a "half wave" rectifier there is 1 diode.


How many diodes do you expect to find in a bridge rectifier?

single phase bridge rectifier: 4three phase bridge rectifier: 6


How do you make project of bridge rectifier on breadboard?

how to make a bridge rectifier on breadboard


Which type of rectifier is the best one?

bridge rectifier is the best rectifier.


What are merits and demerits of bridge rectifier?

Merits a diode bridge rectifier is simple to build


What are the disadvantages of bridge rectifier to center tap rectifier?

In bridge rectifier,two of the diodes are forward biased(i.e conducting current) at a time while in centre tapped rectifier 1diode is forward biased at a time.So,the flaw in bridge rectifier is that voltage loss is more in bridge rectifier than in centre tapped rectifier. e.g:for silicon diode loss=-0.7v (for centre tapp) loss=2*0.7=1.4v (for bridge)


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.


Where is the voltage regulator located on 88 Mazda 323 1.6 injection non turbo?

To the best of my knowledge, both the bridge rectifier and the voltage regulator are integrated into the alternator... I recently bought a refurbished alternator and the spec sheet referred to things like ripple current verification (bridge rectifier) and like regulator voltage verification which imply that both of these blocks are part of the regulator...


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 an explanation of the bridge rectifier?

A bridge rectifier refers to a diode bridge of 4 diodes in a bridge configuration that provides some polarity of the output for either the polarity of the input or output.


Which type of rectifier has the greatest output voltage for the same input voltage and trasformer turns ratio?

Bridge Rectifier


When a car is running is the current ac or DC?

AC (alternating current) is produced in the the alternator. It is converted to DC (direct current) in the alternator by a configuration of diodes called a bridge rectifier. The remainder of the electrical system is DC.


Why used to bridge rectifier?

The bridge rectifier used to rework alternating present (AC) into direct current (DC). bridge rectifier diagram and how it work :- A bridge rectifier makes use of four diodes in a bridge arrangement to achieve full-wave rectification. This is a widely used configuration, both with individual diodes wired as shown and with single component bridges where the diode bridge is wired internally. /


What is the difference between full wave bridge rectifier and bridge rectifier?

Those terms are different names for the same thing. When properly connected, a bridge rectifier is always a full-wave rectifier. ANSWER: The difference is that twice the input voltage will be available to the output, That does not means twice the power.


What happens when one of the diodes are connected in the reverse direction in bridge rectifier?

A: It causes the transformer to see two diode across it secondary as a short


What happens when one of the diodes is removed from the bridge rectifier?

It will degrade to a half-wave rectifier.


What will be the output if you change the direction of diodes in bridge full wave rectifier?

The output will not change. Whichever side of the transformer is positive at any instant still has 1/2 of the bridge to conduct through.


Can a bridge rectifier is possible with the help of two diode?

Yes, if the transformer output is center-tapped; otherwise, no, a bridge rectifier requires four diodes, or six for three phase power. More technically correct, what we are talking about is a full-wave rectifier. A bridge rectifier is properly always four or six diodes.


What are the two main types of bridges in electricity?

A 'bridge' rectifier. Forming a full wave rectifier of AC to DC. A Wheatstone 'bridge'. Where a fine balance is measured, across a bridge of resistors.


What are advantages of bridge rectifier?

because its PIV rating is less than half wave rectifier


Why you prefer full wave bridge rectifier rather than full wave rectifier?

You 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.