Power supply startup recording. Which pico to choose?

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rxpu
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Joined: Wed Mar 20, 2019 1:17 pm

Power supply startup recording. Which pico to choose?

Post by rxpu » Wed Mar 20, 2019 1:27 pm

I want to record from 100ms to 2 seconds of a power supply start up.

Sampling rate: 10ns
It means 100 Msample/s.
If the resolution is 8 bits. It means 100Mbyte/second.

Can I record this sequence over USB 2.0 and USB3.0?

Is the memory important for this kind of data recording?

For example , If I buy the cheapest one pico2000A ,100Msample/s with 8kS memory will it do the job?. How is memory with data recording related?. Should I choose bigger memory?

I will also need a differential probe 1000V cat III. Can I connect a diff probe 1000V cat II to pico 2000A?


Best regards.

rxpu.

Gerry
PICO STAFF
PICO STAFF
Posts: 471
Joined: Mon Aug 11, 2014 11:14 am

Re: Power supply startup recording. Which pico to choose?

Post by Gerry » Wed Mar 27, 2019 12:12 pm

Hi rxpu,

2 seconds of 10ns sample intervals would be 200M samples, which you could capture in the hardware buffer of a picoscope with a 256MS waveform buffer, such as the PS3205D (see here: https://www.picotech.com/oscilloscope/3 ... c-analyzer). Unfortunately, 200MS/s streaming over USB 3.0 would be too fast for our PicoScope 6 software (and you would be limited to 150MS/s using our SDK). So, yes, the memory (on the PicoScope) is important for this much data being captured at once.

You can connect an Active Diff probe to any PicoScope.

Regards,

Gerry
Gerry
Technical Specialist

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