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What is the difference between the Pulse and PWL tab of transient in LTpowerAnalyzer?

Thread Summary

The user inquires about choosing between 'Pulse' and 'PWL' transient control options. 'Pulse' is suitable for sudden load current transitions, while 'PWL' allows for custom, arbitrary waveforms, ideal for simulating specific application scenarios. No specific Analog Devices products are mentioned.
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Hi. I see that in the transient measurement tab there are two options for Transient Control, the Pulse and PWL. How do I know which one to use?

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  • This option is used to set the waveform of the load current during response measurement:
    • With 'Pulse' transient control, the load current will appear as a pulse (or a pulse train) that simply transitions between a low level and a high level. Use this option if you need to check transient behavior during sudden bursts of load current.

    • With 'PWL' transient control, you will be able to define a custom arbitrary waveform for your load current, which allows you to use different levels and timing. Use this option if you want to observe the transient response during load changes in your intended application (e.g., some devices such as MCUs can draw different amounts of load current depending on their operational state).

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  • This option is used to set the waveform of the load current during response measurement:
    • With 'Pulse' transient control, the load current will appear as a pulse (or a pulse train) that simply transitions between a low level and a high level. Use this option if you need to check transient behavior during sudden bursts of load current.

    • With 'PWL' transient control, you will be able to define a custom arbitrary waveform for your load current, which allows you to use different levels and timing. Use this option if you want to observe the transient response during load changes in your intended application (e.g., some devices such as MCUs can draw different amounts of load current depending on their operational state).

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