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Original question:

ULC1001-DRV290XEVM: OUTPUT

ULC1001-DRV290XEVM: OUTPUT

WONBIN LEE
Prodigy 210 points
Part Number: ULC1001-DRV290XEVM
Other Parts Discussed in Thread: ULC1001

Tool/software:

Hello.

Is the PWM output of ULC100 set to output randomly between Freq_Start and Freq_Stop? I am curious about how the PWM output settings of ULC1001 are set.

The figure below shows the output waveform of ULC1001.

  • 0
    TI__Intellectual 1830 points

    Wonbin, 

    The PWM output is not set to output randomly between Freq_Start and Freq_Stop. The output is set per your Burst parameters settings in the GUI. The output frequency starts from Freq_start, and increases Delta Freq per step. When reaching the Freq_stop, it will repeat from Freq_start. More details can be found in section 5.2 of the EVM user guide.

    Regarding your screenshot, I can help diagnose it if you can provide detailed settings and measurement conditions. Let me know if you have more questions. 

    Thanks

    Hailong