| ??? 05/16/10 22:28 Read: times Msg Score: +1 +1 Informative |
#175946 - 100mV is 2% Responding to: ???'s previous message |
100mV was a lot of drift, but seen as absolute values it represents a 2% drop.
You normally either select reference components with little drift, or you implement some temperature compensation. One way to compensate is to have similar components - one component that results in an increase and one component that results in a decrease. In some situations, you even create ovens where you keep the reference component(s) at a regulated temperature. This is most common with crystals, to improve the frequency stability. But "drifting" is bigger than that. Besides temperature drift, you also have long-term drift because of ageing. There are also situations where leaking components or components that needs charging can result in drifting. As long as capacitances are getting charged, they are stealing energy from other parts of the circuit. |
| Topic | Author | Date |
| Drifting in electronic components | 01/01/70 00:00 | |
| 100mV is 2% | 01/01/70 00:00 | |
| Educative | 01/01/70 00:00 | |
| Component modelling | 01/01/70 00:00 | |
| Modelling | 01/01/70 00:00 | |
| Quantitive modelling | 01/01/70 00:00 | |
| For resistors? | 01/01/70 00:00 | |
| I think you are getting the wrong idea | 01/01/70 00:00 | |
| Similar but different | 01/01/70 00:00 | |
| Distinguish "drift" from short-term changes | 01/01/70 00:00 | |
| Trying not to be pedantic | 01/01/70 00:00 | |
Drift is any change from the intial value | 01/01/70 00:00 | |
| How actually measured? | 01/01/70 00:00 | |
| An example only | 01/01/70 00:00 | |
| No general answer... | 01/01/70 00:00 | |
| Ratiometric techniques; Calibration | 01/01/70 00:00 |