| ??? 08/19/02 18:50 Read: times |
#27523 - RE: Relay driver // Steve/active low |
use my scheme u dont need 2 transistor for one relay , only single pnp for one relay is enough just use one 7905 for -v regulator, and guranti, relay will not switch on , on reset , couse on reset ports will be high and pnp wil not triger with high logic , im using A124 pnp transistor for 12volt relays for remote control switching with 2051, more over if u will use A124, u will not need any resistor for base , cose there is bulitin 10k resistor in it , any way if u like i can sent u my designe
fk |
| Topic | Author | Date |
| Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Felix | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver // Farooq | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver for 8051 | 01/01/70 00:00 | |
| RE: Relay driver for 8051 Ijaz | 01/01/70 00:00 | |
| RE: Relay driver // Steve | 01/01/70 00:00 | |
| RE: Relay driver for 8051/ijaz | 01/01/70 00:00 | |
| RE: Relay driver // Steve/active low | 01/01/70 00:00 | |
| RE: Relay driver // Farooq | 01/01/70 00:00 | |
RE: Relay driver for 8051 | 01/01/70 00:00 |



