Timeline for Arduino complete self shutdown
Current License: CC BY-SA 3.0
13 events
| when toggle format | what | by | license | comment | |
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| Mar 11, 2017 at 20:00 | history | tweeted | twitter.com/StackElectronix/status/840653755355918336 | ||
| Mar 9, 2017 at 11:47 | comment | added | Tut | The body diode is always in the MOSFET regardless of whether the schematic symbol shows it or not. If the symbol were for an N-channel MOSFET, the body diode would be pointed the other way and not be a problem. | |
| Mar 9, 2017 at 11:09 | vote | accept | Milos | ||
| Mar 9, 2017 at 8:26 | comment | added | Milos | LED indeed needs a current limiting resistor :) But anyways, first illustration is just a Fritzing image and second one is Multisim scheme which is bothering me, why is current flowing if MOSFET has not been triggered at all? | |
| Mar 8, 2017 at 20:59 | comment | added | Russell McMahon♦ | @Andrew's answer is a complete solution to your question (if implemented correctly). | |
| Mar 8, 2017 at 16:38 | comment | added | Enric Blanco | Messiest multisim schematic on earth, my eyes are bleeding. If you edit it to something readable, more people will be willing to help you. Just a suggestion. Welcome to EE.SE! | |
| Mar 8, 2017 at 14:15 | comment | added | Tut | Also, your LED needs a current-limiting resistor. | |
| Mar 8, 2017 at 13:21 | comment | added | Tut | Current from battery+, through your LED, through the body diode of Q1, and then to battery- ... For your simulation, the current is due to the body diode of Q1 since you have chosen a P-channel MOSFET (I don't know what BST100 is, but the symbol is P-channel). | |
| Mar 8, 2017 at 13:09 | comment | added | Dampmaskin | Looks like current can flow from the battery to Vin on the Arduino, out of D8, through R2 and back to the battery. Or from battery through LED1, to GND on the Arduino, out from D8 through R2 and back to the battery. All depending on what exactly the Arduino does when it's got no power. The diagrams are a little bit messy by the way, best to have the power source to the left so you can "read" the circuit from left to right as we're accustomed to. Oh, and I just noticed, see the body zener diode in the MOSFET? The forward voltage isn't necessarily very high. | |
| Mar 8, 2017 at 13:06 | answer | added | Andrew | timeline score: 5 | |
| Mar 8, 2017 at 13:02 | comment | added | Bort | What is your actual question? Are you just wondering why 35mA is flowing in the simulation? | |
| Mar 8, 2017 at 12:46 | review | First posts | |||
| Mar 8, 2017 at 12:46 | |||||
| Mar 8, 2017 at 12:45 | history | asked | Milos | CC BY-SA 3.0 |