EH11A VOLTAGE REGULATOR PDF

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If we don’t read the correct voltages, then more than likely it is a defective regulator. To test the voltage going into the voltage regulator, we take a multimeter and place it in the DC voltage setting. If the multimeter does read a voltage near its rated output reglator, the voltage regulator is functional and is good.

This is to make sure that voltage is, in fact, being supplied to the regulator. How To Test a Voltage Regulator A voltage regulator is a device that takes in an input voltage and regulates it down to the voltage that it is voltags for. Before we get into how to read the voltages with a multimeter, first we’ll go over the pinout of a voltage vootage, so that you’ll know which pins to read voltages from.

If the regulator is rated to output 5 volts, then we should read a voltage very near 5 volts coming out from its output. To measure the output voltage, we place the same multimeter set in the DC voltage setting and now place the positive probe of the multimeter on the output pin of the regulator and the negative probe on the ground pin of the regulator.

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Regulatoor input voltage that needs to be regulated down goes into pin 1 Input. An adjustable regulator can be tested in the same way. A voltage regulator is a device that takes in an input voltage and regulates it down to the voltage that it is rated for. This is why we do this test.

EH11A View Datasheet(PDF) – Diodes Incorporated.

The LM is a voltage regulator is rated to output 5 volts, so we should read this output. If we do not, then the voltage regulator is defective, as it does not do the job it was designed for, which is output a regulated voltage.

We check the voltage input into the voltage regulator and the voltage output from the regulator. We take the probes of the multimeter and place the positive probe normally the red probe on the input pin of the voltage regulator and the negative probe normally black probe on the ground pin.

How to Test a Voltage Regulator

Measuring the Output Voltage Now that this step is complete, we now read the output voltage. This is normally volts higher.

So voltagf now go through specifically how to test a voltage regulator. Below is the pinout of the LM voltage regulator: If the regulator isn’t receiving sufficient voltage, of course it will not be able to output its rated regulated voltage.

EH11A H11A AZ1117H-ADJ

Measuring the Input Voltage When testing the eu11a of a voltage regulator, we first check the voltage from the input pin to ground. All a user must do is calculate reyulator output that the regulator should output and perform the same test as is shown above to see whether it is good or defective.

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The voltage that we should read should be higher than the voltage the regulator is rated to output. Being that a voltage regulator passes out a regulated output voltage, the only test we must do to check a voltage regulator is a voltage test. The DC voltage setting is the setting of the multimeter regulaor has the following symbol or sign.

Unlike fixed voltage regulators, adjustable regulators can be regulated to output adjustable voltages. We should now read a voltage at or about the rated voltage that the regulator is designed for. And the regulated output voltage comes out from pin 3 Output.

As an example, we’ll use the popular voltage regulator, the LM If we read a higher voltage, then the voltage regulator is receiving sufficient voltage to regulate down.

The ground pin is pin 2. If we read at the input pin the regulxtor which we feed into the regulator and read at the output pin the output voltage which the regulator is rated for, then we know that the voltage regulator is good.

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