Setting Up the Multimeter To begin, turn the dial of your multimeter to the DC voltage setting if you are testing a standard DC adapter. Every PSU has a rated voltage and a maximum current capacity, both of which are usually printed on the label.
Confirming Power Supply Specifications Match with Your Multimeter Measurements
Learning how to test power supply with multimeter is an essential skill for anyone working with electronics. Understanding the Basics of Power Supply Verification Before diving into the measurements, it is important to understand what a power supply unit (PSU) should deliver.
A buzzing transformer or a burning smell usually indicates a catastrophic failure. Selecting a multimeter with a low impedance setting for voltage tests can prevent inaccurate readings caused by the meter loading the circuit.
Confirming Power Supply Specifications Match with Your Multimeter Readings
Plug the test leads into the correct ports—usually the black lead into the common (COM) port and the red lead into the voltage input port. If you are testing a live circuit, use insulated probes and verify your multimeter is set to the correct function and range.
More About Testing power supply with multimeter
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More perspective on Testing power supply with multimeter can make the topic easier to follow by connecting earlier points with a few simple takeaways.
