Measure input voltage: Use a multimeter to measure the input voltage of the battery or power supply. Make sure it meets the input voltage requirements of the inverter (e.g., 12V, 24V, 48V).
Measure output voltage: After the inverter is powered on, use a multimeter to measure the AC output voltage. It should match the rated output of the inverter (e.g., 120V or 230V, depending on your region). Check waveform with an oscilloscope: Connect an oscilloscope to the output of the inverter to check the waveform.
Consequently, it''s necessary to use a true RMS voltmeter (digital multimeter) and current meter (clamp meter). On the secondary side of an inverter, the voltage and current’s fundamental wave includes harmonic components.
The frequency of the reference signal , , determines the inverter output frequency , , and its peak amplitude controls the modulation index and then in turn RMS output voltage. Without using additional components controlled output voltage can be obtained.
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