Experimental data obtained by measurement for forward voltage drop.
| VF (mV) vs resistor | ||||
| Temperature (*C) | 1M | 100K | 20K | 10K |
| 0 | 546 | 600 | 637 | 653 |
| 25.5 | 490 | 550 | 590 | 608 |
| 53 | 422 | 486 | 529 | 548 |
Further the experiment
| VF (mV) vs resistor | ||||
| 誤差% | ||||
| 溫度(*C) | 1M | 100K | 20K | 10K |
| 0 | 0.00% | 0.00% | 0.00% | 0.00% |
| 25 | -1.21% | 0.00% | 0.51% | 0.83% |
| 28 | -1.63% | -0.37% | 0.17% | 0.50% |
| 53 | -4.09% | -1.62% | -0.38% | 0.18% |
| 100 | -13.58% | -5.00% | -2.29% | -0.66% |
Calibration & least square fit, data range 273K-373K, ice bath & boiling water, maximum error +/-1%.
Calibration & least square fit, data range, 300K - 473K, oil bath, maximum error, +/-5%. Delta of temperature coefficience is cosiderable constance; offset of measurement drift is possible caused by setup.
Conclusion
1) VF drop has almost linear function regrading different operating current;
2) Error of linearity is propotional to resistance;
請先 登入 以發表留言。