I am currently using ZXCT1009 high side monitor for monitoring the current consumption on a bus line for an embedded system we are developing. I am currently using tek scope with Labview for automation purpose. Works good at our lab.
Now I am thinking of implementing this ZXCT1009 in the embedded design itself and somehow sensing the voltage across the output resistor.
ZXCT1009 data sheet –http://www.diodes.com/datasheets/ZXCT1009.pdf
I am not sure how to move forward along the lines of using ZXCT1009 as a battery current monitor.
Best Answer
The datasheet itself provides the schematic for implementing the ZXCT1009 as a current monitor:
Rsense = 1.1 / Imax
) - going by the limits in the first graph on Page 3, not by the 2.5 Volt specified in the table on Page 2.Rout = 5 / 0.01
assuming a full-scale of 5 Volts)As the current flowing through Rsense changes, so will Vout. Read this into the ADC, process as required.