| ??? 09/27/10 17:33 Read: times |
#178760 - Several reasons... Responding to: ???'s previous message |
1. your micro is damaged (9V erroneously connected to some port pin)
2. your BS170 is damaged (very easily by ESD, e.g. storing them in a plastic bag...) 3. your code is wrong (is the port pin all the time logic low?? do you feed the watchdog??) 4. confused pin-out of BS170 (you confused gate, source and drain) By the way, what do you mean be "pop". Be a bit clearer when discussing the problems... Kai Klaas |
| Topic | Author | Date |
| 89S52 and BS170? | 01/01/70 00:00 | |
| As written.... | 01/01/70 00:00 | |
| Exactly! | 01/01/70 00:00 | |
| almost true | 01/01/70 00:00 | |
| Series resistor to the gate | 01/01/70 00:00 | |
| Most 8051's | 01/01/70 00:00 | |
| Re: Most 8051's | 01/01/70 00:00 | |
| Several reasons... | 01/01/70 00:00 | |
| pop explained in earlier posts | 01/01/70 00:00 | |
| RE: pop explained in earlier posts | 01/01/70 00:00 | |
| RE: Several Reasons | 01/01/70 00:00 | |
| Update: May be ESD after all | 01/01/70 00:00 | |
| There is a trick... | 01/01/70 00:00 | |
RE: There is a trick... | 01/01/70 00:00 |