R
rares.tohanean
Guest
I have a problem with this schematic:
I want to measure the current through a conductor with TALEMA AC1015 sensor. The signal from the sensor is amplified with op amp MC1458 in an inversor configuration.
The schematic works like this:
current: 3.8A a.c. 50Hz output: 1.93V a.c.
current: 7.4A a.c. 50Hz output: 3.4V a.c.
The problem is that at the output terminal I have always a continuum component of 10V d.c..
Why is this and how I can get rid of it?
Thank you!
raresh.
I want to measure the current through a conductor with TALEMA AC1015 sensor. The signal from the sensor is amplified with op amp MC1458 in an inversor configuration.
The schematic works like this:
current: 3.8A a.c. 50Hz output: 1.93V a.c.
current: 7.4A a.c. 50Hz output: 3.4V a.c.
The problem is that at the output terminal I have always a continuum component of 10V d.c..
Why is this and how I can get rid of it?
Thank you!
raresh.