The LEM sensors come complete with core, and I believe some even split open.
The Allegro sensors are just ICs that sit over a PCB trace without
magnetic circuit, I don't believe they are as good for what we want to
do.
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Are there any cheap approximations of the Iprober 520 fluxgate sensor
current probe?
Maybe some sort of IC?
ST
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On Sun, Dec 9, 2018 at 8:19 PM David Slipper <softfoot@...> wrote:
I did look at making one with a Hall sensor - the electronics isn't a
problem but the difficulty arises (for me at least) in cutting the slot
in a ferrite ring to put the sensor in or even splitting the core to
make a clamp. I guess it's easier if you have access to the right tools.
Any ways, this works well for me :-)
On 09/12/2018 18:52, stefan_trethan wrote:
If you only need low frequency the LEM brand hall effect sensors, I
believe Allegro also makes chip based ones, can be an option.
Also remember you can put 10 turns through if you need more
sensitivity (insertion impedance permitting).
