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[SOLVED] Why didn't oscillograph 2 have nothing.?

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zhujiu

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FWL$WE_K$03Q2SMN2W4J8~5.jpg

I think oscillograph2 should have same wave shape with oscillograph1.
 

Hi,

the scope refers to GND. But your signal is connected to GND with diodes.
So the signal is floating somehow.

The voltage on the scope is not defined.

Either set GND to an other _defined" net or use a differential sensing scope.


Klaus
 

hi,
It appears that XSC2 is connected to 0V.???
There is a difference in the way the two graphs are connected.
E
 

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