Hi,
We are doing an offline Boost PFC. We have a diff probe, but due to its long leads, the scope traces from it are swamped in common mode noise.
We know of the potential severe danger to health of cutting off the earth lead from the scope supply.
Though we can't afford an isol txfmr...and so if we cut off the earth, and probe using a home brew coax probe, will the traces be very noisy due to the cutting of the earth wire from the mains cable to the scope?
We are doing an offline Boost PFC. We have a diff probe, but due to its long leads, the scope traces from it are swamped in common mode noise.
We know of the potential severe danger to health of cutting off the earth lead from the scope supply.
Though we can't afford an isol txfmr...and so if we cut off the earth, and probe using a home brew coax probe, will the traces be very noisy due to the cutting of the earth wire from the mains cable to the scope?
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