Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Hi Team,
I have attached a schematic for the current sensing. This circuit is used for 100V/10A. Is this current or any modifications are there, please let me know.
As Klaus said, impossible to say without more info on the application.
My main concern is that the INA186's input pins only operate down to -0.2V (absolute max is -0.3V). So if the load on the battery exceeds 20A (perhaps less, depending on your layout), don't expect proper operation (though if you're using the A5 version of the part, the output would saturate long before you get to 20A). And large surges above 30A may damage the device.
If you're using a low-side sense resistor, a simple differential amplifier is probably a better choice.
Also, the arrangement of R175/R177/C283/C284 doesn't make any sense.
it´s hard to give a good assistance when you don´t give basic informations .. like VIO for example.
You show a current measurement circuit: The input is the current, the output is a voltage.... surely not 84V/10A.
***
I try it the other way round:
* VIO is critic, because it may introduce noise. Also every fluctutaion of VIO will be sent to the output, because you use it as REF signal.
VIO usually is a "supply" signal and thus not very precise. You can´t rely on it ... unless it is designed as "precision reference" .. but we don´t see this.
Thus I asked about VIO .... and all the other things.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
