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The two pins with the ~ symbol are for the AC input and the + and - are for the pulsing DC output

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โˆ™ 2009-02-09 00:07:50
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Q: What pins go to power load and ground on a bridge rectifier for building a DC power supply?
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Purpose of bridge diode in a power supply?

Bridge diodes are generally used in a bridge rectifier to convert AC into DC.

Where you can use full wave rectifier?

Basically , rectifier is used to convert a.c into d.c . The bridge rectifier is used in all power supply section of all device which are operated on D.C supplly. For example in TV the circuit board is operated at 12 V D.C. so we need dc supply which is provided by rectifier. All SMPS ( Switched Mode Power Supplies) uses Bridge rectifier.

What is the peak inverse voltage rating of diode in bridge rectifier?

2x the peak supply voltage!

Why you use bridge rectifier in 12 volt power supply?

Most of the circuits comprising of electronic components run on dc supply.. As DC supply is not available directly for us, we use either 230/12V or 230/18V transformer to stepdown the available 230V (in some countries it is 110v) and then convert it into dc using a rectifier. As a bridge rectifier is more efficient than a conventional full wave rectifier, about 81.2%, it is widely used in such type of circuits.

Compare the two full wave rectifier?

A bridge rectifier and a full-wave rectifier? The full-wave rectifier requires half as many diodes but needs a center-tapped transformer and delivers half the transformer's voltage. If you need 12 volts out of the power supply, using a full-wave rectifier will require you to use a 24-volt transformer. The bridge rectifier allows you to get full transformer voltage out of the power supply. If you need 12 volts out of the supply, you can get it with a bridge rectifier and a 12-volt transformer. (However, given this you NEVER get full secondary voltage out of a power supply. There are voltage drops across the diodes, and usually you'll throw a voltage regulator in there which cuts the final voltage even farther. Still, though, you need a smaller, less expensive transformer to get a certain voltage out of a bridge-rectified supply than out of a full-wave-rectified supply. It's much cheaper to use more diodes than more transformer to get to the same place, so that's what everyone does.)

What is the applications of the variable power supply using full wave rectifier?

the rectifier will convert the variable power supply to a DC power supply

What are disadvantages of full wave bridge rectifier?

The main disadvantage of a bridge rectifier is that it needs four diodes, two of which conduct in alternate half-cycles. Because of this the total voltage drop in diodes becomes double of that in case of centre-tap rectifier, losses are increased and rectification efficiency is somewhat reduced. This poses a problem when low voltages are required. Another disadvantage of bridge rectifier is that the load resistor R Land the supply source have no common point which may be earthed.

Which is found in a PC power supply Transformer or rectifier?

A computer power supply functions as both a transformer and rectifier I checked my book ^_^

What is the difference between a rectifier and a power supply?

A power supply supplies power. A rectifier converts Alternating Current to Direct Current

Does a full-wave rectifier work if there is no ground?

You can use it as a floating PS by connecting the anode side to - supply and the cathode side to +

How does a filter operates in DC power supply?

It removes the remaining AC ripple after the rectifier, using capacitors (to bypass it to ground) and/or inductors (to block it).

What are rectifier diodes?

a diode current rectifier is a device that uses 4 diodes arranged in such a way that it converts alternating current into direct currentthe arrangement is called a bridge rectifierit is very simple in how it works but the best way to understand how it works would be to see a diagram of a bridge rectifier with the current directions marked out on itWhen the input connected to the left corner is negative, and the input connected to the right corner is positive, current flows from the lower supply terminal to the right along the red (positive) path to the output, and returns to the upper supply terminal via the blue (negative) path.diode-bridge

What is Vrms of half wave rectifier?

The Vrms of half wave rectifier is the average value of the supply voltage.

What is the difference between rectifier and power supply?

A rectifier converts AC (alternating current) to DC (direct current). A power supply provides power at the desired voltage using a transformer, and may also has a rectifier to convert it to DC.

What does a bridge rectifier do in a circult?

It converts input AC supply to DC in positive as well as negative half cycles.ANSWER: It rectify the input to twice the input frequency as pulsating DC

What is the formula for calculating DC votage from a 3 phase rectifier bridge using AC voltage across one phase?

A 3-phase rectifier bridge can be used with a single phase supply, it just means that four of the diodes are not connected. The peak voltage (if a reservoir capacitor is used) is sqrt(2) times the rms supply voltage and the average voltage using inductor smoothing is 0.9 times the rms voltage.

What is voltage regulation of a rectifier?

A rectifier doesn't regulate voltage. In a power supply, a rectifier changes the incoming a.c. to d.c. Regulation may then be applied to the resultant d.c.

4 What is the difference between a transformer and a rectifier Which are found in a PC power supply?

A rectifier is a device that converts alternating current to direct current. A transformer is a device that changes the ratio fo current to voltage. A rectifier is found in a PC power supply.

What is the need of 3 terminals in transformer?

You're talking about three terminals on the same winding, correct? This is called a "center tapped" transformer. There are three basic reasons to use one. The first is if you want only positive (or negative, depending on how you wire the rectifiers) voltage but only want two rectifier diodes in the power supply. (Why? Say you're designing a DC arc welder. The rectifier diodes for those cost $125 each, and it's cheaper to build a center-tapped transformer than to buy two more diodes.) The second is for a high-frequency switching power supply. The third is if you need both positive and negative voltage. You install a bridge rectifier on a CT transformer. Normally, a bridge rectifier treats the negative output as ground, so if you connect a 14-volt transformer to a bridge rectifier you will get, after accounting for loss in the diodes, about 12 volts off the positive output. Now connect the same bridge rectifier to a CT transformer, referencing both outputs to ground at the center tap, and you'll get positive 6v and negative 6v. There's not too many devices anymore that need negative voltage--the old Intel 8080 needed +5, -5 and +12--but if you need negative voltage for something, that's how you get it.

How is ac converted to dc power supply?

by using rectifier

Is a transformer or a rectifier found in a computer power supply?

Rectifier generally both. usually several of both for the different voltages required.

What kind of supply is given to the circuit?

ac supply is given and then in the circuit rectifier converts ac to dc

How would three phase power be supplied to a DC disc brake?

The AC supply would have to be changed to DC supply.. This would be done with the use of a rectifier. It would be done usually with a full wave rectifier.

How do you convert 240 AC to 12v DC?

Depends what current out you want. Step-down transformer and a bridge rectifier and smoothing curcuit, or switch mode supply. Spend less than a tenner and buy a battery charger

What is the Ripple frequency of full wave rectifier working on 50 hz supply will be?