Author Topic: Bidirectional current sense IC  (Read 1208 times)

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Offline Vindhyachal.takniki

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Bidirectional current sense IC
« on: June 29, 2015, 05:32:13 pm »
1. I need to select bidrectional current sense to be used as ammeter.
2. Going through some of voltage output IC , to be operated at 3.3V.
3. Since it is ammeter it can high side or low sense or between two loads.
4. Only problem I have found that IC have miminum CMR, e.g 4V. So I need to have minimum voltage of source to measure current. E.g if I have 1V source & load is 100ohm, I won't be able to measure current through it.
5. Best I can found is LMP8601 from TI.
6. Any suggestions on that.
 

Offline PSR B1257

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Re: Bidirectional current sense IC
« Reply #1 on: June 29, 2015, 06:57:58 pm »
In theory, there is no difference between theory and practice. But, in practice, there is.
 

Offline PICmonster

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Re: Bidirectional current sense IC
« Reply #2 on: June 30, 2015, 01:57:36 pm »
Diodes Inc (formally Zetex) do a range of current sensor devices, I don't know the particular but maybe it's worth a look?

http://www.diodes.com/?q=search&type=0&value=current%20sense

Do you have a block diagram showing your requirement with Voltages and Currents etc, then maybe I can assist further


 


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