High transformer input current
High transformer input current
(OP)
I built a 125W transformer with input voltage of 50V and an output voltage in taps (6). When I energised the transformer and tapped the primary input voltage to a Cathode Ray Oscilloscope, and output left opened, A HIGH CURRENT WAS OBSERVED IN THE PRIMARY. I disconnected the connection to the oscilloscope and there was no such high current.
Is this an EMI problem?
Is this an EMI problem?






RE: High transformer input current
RE: High transformer input current
RE: High transformer input current
RE: High transformer input current
RE: High transformer input current
RE: High transformer input current
EMI from the oscilloscope should have no effect.
What are you measuring the current with?
An actual photo of your setup would be helpful to us.
Best to you,
Goober Dave
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RE: High transformer input current
RE: High transformer input current
RE: High transformer input current
Transformers are generally well-understood and well-documented, and quite predictable in behaviour in the smaller sizes and at moderate frequencies.
As you designed and built this thing, how about some design parameters?
Core material?
Operating flux density?
Core cross section?
Primary turns?
Frequency?
Primary voltage?
RE: High transformer input current
RE: High transformer input current
RE: High transformer input current
Bill
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"Why not the best?"
Jimmy Carter
RE: High transformer input current