Timeline for Help me understand the calculation of the current consummated by LM7805
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
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| Jul 19, 2022 at 12:48 | comment | added | Osoian Marcel | Now I understood. I was wrong, the simulation math is correct. So the linear regulator acts as a dynamic serial resistor which dissipate the unwanted voltage. P(total) = V(in) * I(load) + I(q) where 12V * (10mA + ~5mA) = ~0.18W. Thank you. | |
| Jul 19, 2022 at 12:36 | vote | accept | Osoian Marcel | ||
| Jul 19, 2022 at 7:15 | history | answered | Rohat Kılıç | CC BY-SA 4.0 |