/diy/ - Do It Yourself

Anonymous Sat Dec 21 08:21:41 2019 No.1737849 [View]
File: 32 KB, 723x592, current sense1.png [View same] [iqdb] [saucenao] [google]

>>1737845
This current sensor works with most shitty opamps. You'll have to do the math to find the gain (I don't remember it now but it's very easy). In the pic the 10Ohm resistor is the load. If you google "current sense" you'll find a lot of diferential amps and instrumentation amps. They are ideal for this, but if you try making one with discrete shitty opamps it usually don't work because of common voltage range issues.

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/diy/ - Do It Yourself

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