| ??? 07/14/03 07:22 Read: times |
#50640 - RE: P89C51 relay interface Responding to: ???'s previous message |
Use a inverted logic, if not at the startup the relay will turn on and off.
You can use a single bc557 a resistor and don't forget the flyng diode. If you use an L2003 you have all in one, howevwer is not inverted logic. |
| Topic | Author | Date |
| P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| Correction: collector not base | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
Thanks for the help | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 | |
| RE: P89C51 relay interface | 01/01/70 00:00 |