Technical FAQs 4

How do electronic loads facilitate power supply testing?

Electronic loads can facilitate power supply testing in several ways. They are typically pro-grammable, although most require external DAC program-mers. This capability enables finer control over loading values during testing, and can provide the test set operator with valu-able status information.

What tools do you need to test a power supply?

The following items will be helpful in your testing endeavors: Multimeter: An essential tool for measuring voltage, current, and resistance. It can help you determine whether or not a power supply is delivering the correct output. Power Supply Tester: A device specifically designed for testing power supplies.

Do I need to test a used power supply before installation?

Yes, testing a used power supply before installation is a vital step to ensure reliability and performance. Before connecting the PSU to any components, perform a basic check using a multimeter or power supply tester to verify that the output voltages are within expected ranges.

How many load settings should be used in a power supply test?

At least two load settings should be used, one of them being the maximum rated load for the power supply under test (see Figure 9 for test configuration). Some power supplies vary sub-stantially in efficiency and power factor as a function of loading.

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