| ??? 04/29/06 12:48 Read: times |
#115229 - 12V relay with BC547 drive Thanks to all Responding to: ???'s previous message |
Hello Everybody, Thanks for your help.
As per Andy's Link for Darlington pair, it worked. I was using BC557, which was getting ON as soon as base is connected to port of MCU ,since it was on 5v side. Now with darlington pair ,it is ok. |
| Topic | Author | Date |
| Trying to drive 12v relay using tr557 | 01/01/70 00:00 | |
| Search! | 01/01/70 00:00 | |
| !Search | 01/01/70 00:00 | |
| Use Darlington pair | 01/01/70 00:00 | |
| Specifically not ULN2002 | 01/01/70 00:00 | |
| What is tr557? | 01/01/70 00:00 | |
| Deja vu | 01/01/70 00:00 | |
| Do not connect PNP with 12V to port pin | 01/01/70 00:00 | |
| 12V relay with BC547 drive Thanks to all | 01/01/70 00:00 | |
Mr. Karas's Relay Drive Circuit | 01/01/70 00:00 |