This procedure shows how to select one PWM harmonic after the others. Then, this selection can be processed.
To Select PWM Harmonics Manually:
Prerequisites: You need to open or calculate a time frequency
representation.
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Detect PWM harmonics.
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From the toolbar, select the PWM harmonics selection by hand tool .
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Move the PWM harmonics selection
by hand tool on the representation.
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If needed, verify the cursor position information in the left bottom corner of the main window.
Note: T is the time in seconds. F is the frequency in Hertz. O is the PWM harmonic number. A
is the amplitude in dB. Fc is the constant frequency in Hertz.
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Click the representation.
The PWM harmonic is manually selected.
To select several orders (one order after the other), click
again the representation.
Tip:
If you need to deactivate the PWM harmonics selection by hand tool, press
Esc.
Tip:
Once the order is selected, you can
modify it.
The PWM harmonics are selected.