oscilloscope

[[email protected]]

Could anybody tell me why does charger burn out when I connect just
one probe clamp of oscilloscope to high voltage side of circuit?
thanx

 

[D from BC]

Could anybody tell me why does charger burn out when I connect just
one probe clamp of oscilloscope to high voltage side of circuit?
thanx

Scope is without isolated ground.
D from BC

 

[Lionel]

Could anybody tell me why does charger burn out when I connect just
one probe clamp of oscilloscope to high voltage side of circuit?
thanx

I'm not a 100% sure what you're trying to say, but it sounds like
you're probing a live, mains-powered device, & attaching your probe
ground to something with lots of volts on it.
DON'T DO THAT! - At least isolate the device under test!

 

[Robert Wilson]

I'm not a 100% sure what you're trying to say, but it sounds like
you're probing a live, mains-powered device, & attaching your probe
ground to something with lots of volts on it.
DON'T DO THAT! - At least isolate the device under test!

Yes use an isolating transformer, do no be tempted to disconnect the
ground wire from the scope. That is a trick that people used to do, but
it is highly dangerous.

ROb.

 

[[email protected]]

What type/ model of scope are you using?
If you don't ground the scope + a fault occurs, the current could go
to ground via you.
If you are having problems with spikes, and if capturing the waveform
is not essential you could connect a choke, or similar, between the
probe + oscilloscope.

Just a few thoughts, JD