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measuring a class D amp

Forum for discussing PicoScope (version 5)

measuring a class D amp

Postby DJ » Mon Nov 08, 2004 3:32 pm

Hi there

I have recently purchased the Picoscope. First impressions are that it is a very good piece of kit and has some good features and advantages.

Anyway, my question is this:

Is it safe to measure the output of a class D amp using the picoscope? I ask this because it has a floating ground.

Could someone please give me some advice on doing this please?

Thanks in advance
DJ
Newbie
 
Posts: 1
Joined: Mon Nov 08, 2004 3:23 pm
Location: Essex

Postby Sarah » Tue Nov 09, 2004 12:41 pm

Hi

Thank you for your post.

To measure something with a floating ground then the Picoscope would need to be isolated. This can be achieved when using a laptop as the unit is not taking a ground from the earth (it cannot with a laptop). The other way would be to use differential probes.

Otherwise I would not advise doing this experiment.

Hope this helps

Best Regards
Sarah
 


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