Timeline for Why is there an additional resistor in this phototransistor circuit?
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 30, 2021 at 8:11 | vote | accept | JoS | ||
| Apr 30, 2021 at 8:11 | comment | added | JoS | Indeed, this circuit is just an extension to a more complicated picture and my expectation was already, that R3 is somehow related to the rest. So I was just wondering if there is a good reason on the phototransistor side that R3 exists. Thanks. | |
| Apr 30, 2021 at 8:05 | vote | accept | JoS | ||
| Apr 30, 2021 at 8:05 | |||||
| Apr 30, 2021 at 7:39 | comment | added | jonk | I like your approach. I'd add +1 if there was more detail about various receiving circuits. As it is, it's too short to meet my own criteria. | |
| Apr 30, 2021 at 7:29 | history | answered | Horror Vacui | CC BY-SA 4.0 |