Electronics > Beginners
Arduino LCD shield with buttons
Simon:
--- Quote from: nsrmagazin on December 03, 2018, 02:38:58 pm ---Ok if you are electronic based. Do you know how this circuit works? Please explain the hardware? If you do, I will help you.
--- End quote ---
I would love to "prove" myself to you in order to get he help I did on ask you for but unfortunately I am slightly busy with my electronics design job's current requirement that blows this little side project out of the water and for which I hardly have the time hence I am using the Arduino to save me the hassle of designing a one off and then having to work out how to talk to stuff without libraries. Thank you for your interest.
rstofer:
How about a Hall Effect non-contact current sensor like this:
http://www.ohiosemitronics.com/products/current/ctl-201s-150.html
OK, we have a sensor, now we need to find something with a lower price.
You can rescale the 75 mV output with an op amp... Be aware of the bi-directional nature of the output.
Simon:
I'm going to use this: https://www.mouser.co.uk/datasheet/2/397/L01ZXXXS05-274998.pdf fairly economical and i have 2 on my desk now. The output is 5V
nsrmagazin:
I'll take your word for it.
The sensor will work, but 75mV is not good. Its better to make it 50mV. You have a "5VDC" power supply, 5/50mV = 100. if you want 150A, you need it to be 30mV.
Simon:
Well i don't have much choice. It is the best sensor I can find as it only requires 5V not +/-15V like many. It is bidirectional so it's more like 0.3A resolution which is still fine.
My boss has just decided he does not want the power measurement anymore because the customer cannot remove it from the system easily so it's not even a problem anymore.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version