R
raf
- Jan 1, 1970
- 0
http://rapidshare.com/files/15616508/current_sensor.doc.html
Dear all,
Here i have a current sensor (high-side) to measure the current and to
offset the common mode voltages. I would like to know how the circuit
is working. If i give 300mV as input (assumed the shunt resistor with
0.5m ohm and current 60A) then the output is measured at the
transistor (IRF150) which is connected to the op amp. So how the
circuit is removing the common mode voltage. for this the transistors
(dual type) are connected which are doing the common mode voltage
offset. The circuit i am giving is PSPICE model in which i do not have
exact components so i took available from PSPICE.
Any suggestions are appreciated
RAF
http://rapidshare.com/files/15616508/current_sensor.doc.html
Dear all,
Here i have a current sensor (high-side) to measure the current and to
offset the common mode voltages. I would like to know how the circuit
is working. If i give 300mV as input (assumed the shunt resistor with
0.5m ohm and current 60A) then the output is measured at the
transistor (IRF150) which is connected to the op amp. So how the
circuit is removing the common mode voltage. for this the transistors
(dual type) are connected which are doing the common mode voltage
offset. The circuit i am giving is PSPICE model in which i do not have
exact components so i took available from PSPICE.
Any suggestions are appreciated
RAF
http://rapidshare.com/files/15616508/current_sensor.doc.html