power input
The larger the Vpp jitter is, the more
severe the ripple of the power supply is.
The upper right corner of the green
1.0KHz indicates the frequency of the
current waveform.
Because the built-in ad speed of the arm chip of stm32f072
sampled by u2 is only 1m, the bandwidth is not high, and the filter
capacitor on the power supply side, the waveform frequency that
can be automatically measured is not high. Friendly reminder:
Detailed ripple measurement is recommended to use a regular
oscilloscope of 50m or more.
The measurement results provided by u2 can be used as different
charger output comparisons, for reference only.
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