| ??? 05/17/10 08:23 Read: times Msg Score: +1 +1 Informative |
#175961 - Component modelling Responding to: ???'s previous message |
Drift is usually the result of component characteristics changing in a way that deviates from a simple model. A demanding application (or a good engineer) may use quite a complicated model for the components, and it takes experience to determine how complicated your component models need to be.
Capacitors are quite a good component to study because they look simple, but have a manageable set of secondary characteristics. Apart from temperature effects, they lose capacitance with time and vary with bias voltage. The spicap utility on the AVX website is a useful tool. Ceramic capacitors are available with stable dielectrics like COG/NPO, medium performance X5R/X7R and poor Y5V. |
| 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 |