Timeline for Power Supply Sees Electromagnet as a Short Circuit
Current License: CC BY-SA 3.0
10 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 7, 2018 at 3:00 | history | tweeted | twitter.com/StackElectronix/status/1026664400302821378 | ||
| Aug 7, 2018 at 1:37 | answer | added | Jeff McCrea | timeline score: 1 | |
| Aug 11, 2015 at 9:56 | vote | accept | JakaQuan | ||
| Aug 10, 2015 at 18:03 | comment | added | rdtsc | If the schematic (relay) is drawn correctly, the coil is on continuously, except for when pin Q3 is high. If the 74 or BC fail, the coil will be stuck "on." And generally, BJT arrows should point down or right for maximum readability. | |
| Aug 10, 2015 at 16:18 | answer | added | Wouter van Ooijen | timeline score: 4 | |
| Aug 10, 2015 at 16:09 | comment | added | Curd | @JakaQuan: you need to limit the base current (put a resistor between Q3 and the base) otherwise the 4060 and/or the BC547 may be damaged | |
| Aug 10, 2015 at 16:03 | history | edited | JakaQuan | CC BY-SA 3.0 |
Added detail for clarity
|
| Aug 10, 2015 at 16:01 | comment | added | Eugene Sh. | Simply put: You are trying to draw a current higher than your PS is able to provide. Now answer this. | |
| Aug 10, 2015 at 16:01 | comment | added | PlasmaHH | Compare the current the power supply can provide with the current you are trying to draw from it | |
| Aug 10, 2015 at 15:59 | history | asked | JakaQuan | CC BY-SA 3.0 |