nikhiljoshi
Newbie level 4
Dear Sir,
The project is to establish the current sensor which measures current up to 0-5 amp(DC). I have used 0.1 ohm(5 watt) value resistor for sampling the current and I got 0 to 0.5 volt according to 0-5amp.but the problem is that our ADC inputs are not compatible for that much of lower input voltage.it needs the range from 0-5 volt.so its necessary that amplify the 0-0.5 volt to 0-5 volt which we directly fed to ADC analog channel and give the perfect output with respect to 0-5amp.so I need to be design the voltage amplifier circuit using an OP-EMP with appropriate gain.
1) Is it possible with LM358 ?
2) how can we give the negative Vcc to OP-AMP ?
3) Can we GROUND the -Vcc terminal instead of it?
4) sir what is the time-limit up to that i can continuously measure the current of 5 amp with 0.1 ohm(5 watt) value resistor?
The project is to establish the current sensor which measures current up to 0-5 amp(DC). I have used 0.1 ohm(5 watt) value resistor for sampling the current and I got 0 to 0.5 volt according to 0-5amp.but the problem is that our ADC inputs are not compatible for that much of lower input voltage.it needs the range from 0-5 volt.so its necessary that amplify the 0-0.5 volt to 0-5 volt which we directly fed to ADC analog channel and give the perfect output with respect to 0-5amp.so I need to be design the voltage amplifier circuit using an OP-EMP with appropriate gain.
1) Is it possible with LM358 ?
2) how can we give the negative Vcc to OP-AMP ?
3) Can we GROUND the -Vcc terminal instead of it?
4) sir what is the time-limit up to that i can continuously measure the current of 5 amp with 0.1 ohm(5 watt) value resistor?