| ??? 03/08/09 14:48 Modified: 03/08/09 14:52 Read: times |
#163233 - Frequency dependent error and... Responding to: ???'s previous message |
Well, there's at least a frequency dependent error due to the finite input impedance of integrator. Also, fast current changes become differentiated to very narrow and very high pulses, the integrator might not be able to handle.
We have this issue discussed here for a while: 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 Kai |
| Topic | Author | Date |
| high current measurement | 01/01/70 00:00 | |
| How high? | 01/01/70 00:00 | |
| for AC | 01/01/70 00:00 | |
still waiting for other idea | 01/01/70 00:00 | |
| Hall Effect Sensors | 01/01/70 00:00 | |
| HIGH currents | 01/01/70 00:00 | |
| Why do you say that, Steve? | 01/01/70 00:00 | |
| Frequency dependent error and... | 01/01/70 00:00 | |
| Thanks, Kai | 01/01/70 00:00 | |
| it is better method to use hall effect sensors | 01/01/70 00:00 | |
| And of course the shunt resistor | 01/01/70 00:00 |