Need to monitor current flow into and out of an inverter using CTs.
You can use CTs to measure current signal, on the voltage side, we often make a big voltage signal into a small one by resistor divider. Please tell us more about your application, about the signal range, what type of signal you want to monitor, AC or DC, current or voltage? How many signal you want to monitor? We can see you want to monitor the current signal before and after the inverter, is that right?
Gary, thanks for the note. Residential application. We need to monitor a total of 6 separate 120 VAC lines single phase. Batteries and inverters are involved where electricity flow may be into or out of the inverters. The lines may be separated so we are really looking to use multiple devices at each location. And IC with 2x Voltage and 2x Current inputs would work. Do have questions on how we query and separate the into and out of KW measurements for periodic recording purposes.
Appreciate the help. Looking for a solution with a reference application and PCB artwork ready.
I think if you want to choose single phase chip, ADE7953 is a good choice. Thank you very much.
Looked at ADE7953. Customer really wants both 120V legs measured and looks like this device can only do voltage measurement. Other choices?
Did not see schematics or PCB layout files. Are these available for any of your metering ICs?
ADE9000 is a good choice, the chip can monitor 3 phases. Here is the link of evaluation board user guide and schematic. We don't have one chip just suitable for 2 phases, you can use one phase or three phases monitor chip. http://www.analog.com/media/en/technical-documentation/user-guides/EVAL-ADE9000EBZ-UG-1082.pdf. Thank you very much.
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