File:Lamp inrush current.png
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Summary
| Description |
English: This oscillogram shows a bench power supply current limit circuit operate on the inrush surge of a small incandescent lamp. Lamp current is in yellow, approximately 2 amps/vertical division, power supply voltage is pink, 5 volts/division. For a fraction of a millisecond, the lamp attempts to draw about six times its steady-state current. The overcurrent protection circuit of the power supply dropped the output voltage from 13.9 V down to about 3 volts to limit current and protect the power supply. After about 100 milliseconds, the foldback current limit circuit resets and the voltage returns to full value - a small extra surge of lamp current occurs when the voltage is restored, then the lamp slowly returns to its steady state current draw of 2.3 amps. |
| Date | |
| Source | Own work |
| Author | Wtshymanski |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:32, 26 March 2019 | | 800 × 480 (31 KB) | Wtshymanski | User created page with UploadWizard |
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