| ??? 11/27/10 19:13 Modified: 11/27/10 19:14 Read: times |
#179689 - The "crying wolf" is right here... Responding to: ???'s previous message |
In this scheme
the voltage regulator makes absolutely no sense at the place where it sits, as Kalpak already mentioned. Also, there'n no explaination, why the output voltage is up to 4VDC when the output is turned-off. For this open emitter topology with no internal pull-down resistor shown, only a leakage current specification would make sense here. More, what we see is a "Darlington" and not a "Darlington driver". So, the scheme is crap and is only good for causing confusion. Kai Klaas |
| Topic | Author | Date |
| Switch off a LED array | 01/01/70 00:00 | |
| What are the switches? | 01/01/70 00:00 | |
| Virtual ground at 3.3V | 01/01/70 00:00 | |
| 3.3V Regulator Idea | 01/01/70 00:00 | |
| The 3.3V regulator idea might not work! | 01/01/70 00:00 | |
| It is a SOURCE board ... | 01/01/70 00:00 | |
| Hhm, leakage currents? | 01/01/70 00:00 | |
| Solution in sight | 01/01/70 00:00 | |
| LED tester shows bad design/bad parts | 01/01/70 00:00 | |
| Who is the designer ?? Stand up.... | 01/01/70 00:00 | |
| LED tester shows bad design/bad parts | 01/01/70 00:00 | |
| I wouldn't rely on anything published by NI | 01/01/70 00:00 | |
| crying wolf again?? | 01/01/70 00:00 | |
| NI is not a fly-by-night-operator | 01/01/70 00:00 | |
| No question about that | 01/01/70 00:00 | |
| The "crying wolf" is right here... | 01/01/70 00:00 | |
| I also say it... | 01/01/70 00:00 | |
Leakage current analysis | 01/01/70 00:00 | |
| Also, the voltage across the load.... | 01/01/70 00:00 |