kathmandu
Full Member level 5
Hello,
I have a 250A/60mV shunt to monitor a power inverter operation. The shunt is located on the low-side (that's it, the inverter ground is floating - max 60mV).
As I only have a single supply available (+12VDC, the inverter housekeeping supply), is there any inamp/opamp (or any other discrete method) available to amplify (x100) that small ground referenced signal?
As far as I have read, all INA instrumental opamps need a negative supply (but I must admit I have filtered my search on this further condition: I need a through-hole package or a discrete BJT/MOS solution).
Any help is highly appreciated!
I have a 250A/60mV shunt to monitor a power inverter operation. The shunt is located on the low-side (that's it, the inverter ground is floating - max 60mV).
As I only have a single supply available (+12VDC, the inverter housekeeping supply), is there any inamp/opamp (or any other discrete method) available to amplify (x100) that small ground referenced signal?
As far as I have read, all INA instrumental opamps need a negative supply (but I must admit I have filtered my search on this further condition: I need a through-hole package or a discrete BJT/MOS solution).
Any help is highly appreciated!