| ??? 03/26/10 14:55 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#174520 - Stay in your original thread!! Responding to: ???'s previous message |
Otherwise you turn this place into chaos!
Manju said:
Current to be measured - 50 - 150A (rms)
Frequency Range - 45-65 Hz Rogowski coil output - 1mV - 100mV Opamp - should be of single supply with supply voltage 2.7-3.3V (It seems LT1630 , OPA338 etc are good . not sure!!) Can anyone of you pls help me to design an amplifier and then an integrator for this application? Is differential amplifier to be designed(bcz of common mode noise)? In these messages you will find a circuit that works: http://www.8052.com/forum/read.phtml?id=82743 http://www.8052.com/forum/read/82875 http://www.8052.com/forum/read/86600 http://www.8052.com/forum/read/85089 So, why not first building up this circuit, as a start? Kai Klaas |
| Topic | Author | Date |
| Current Measurement using Rogowski Coil | 01/01/70 00:00 | |
| Why omitting the protection circuit?? | 01/01/70 00:00 | |
| Protection circuit | 01/01/70 00:00 | |
| Differential Amplifier | 01/01/70 00:00 | |
| Protection Scheme | 01/01/70 00:00 | |
| Stay in your original thread!! | 01/01/70 00:00 | |
Yes, Stay in your original thread!! | 01/01/70 00:00 |