Data Logging Current Usage - CT''s and shunts
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Jameco has one of the coil wrapped in an enclosure style. you pass
your wire thru it for current measurement. It's only a couple bucks,
but I don't think it will got to 50 amps.
In the commercial industry, they are called Current Transformer or
CT's. used on power lines to monitor current.
For your application, the Analogue to Digital is where your accuracy
will lie. the current sensing units will have the ablility to output
a pretty accurate signal.
and if you do some small research on transformers and wire wrapping,
you can easily make your own.
on another note, maybe should be another thread......
I have an application that charges a capacitor, then as the cap
begins to discharge, I want to monitor that and control the charging
MOSFET.
I was looking at a shunt, but have found little in the way of
information. 20 amps, 70 volts, and as low a resistance as possible
that offers a signal to the comparitor.
The idea is that the voltage passing will have some resistance and
one can monitor the voltage across the resistor.
any ideas on where to get a shunt or how to make one ?
Dave
your wire thru it for current measurement. It's only a couple bucks,
but I don't think it will got to 50 amps.
In the commercial industry, they are called Current Transformer or
CT's. used on power lines to monitor current.
For your application, the Analogue to Digital is where your accuracy
will lie. the current sensing units will have the ablility to output
a pretty accurate signal.
and if you do some small research on transformers and wire wrapping,
you can easily make your own.
on another note, maybe should be another thread......
I have an application that charges a capacitor, then as the cap
begins to discharge, I want to monitor that and control the charging
MOSFET.
I was looking at a shunt, but have found little in the way of
information. 20 amps, 70 volts, and as low a resistance as possible
that offers a signal to the comparitor.
The idea is that the voltage passing will have some resistance and
one can monitor the voltage across the resistor.
any ideas on where to get a shunt or how to make one ?
Dave