| ??? 08/27/05 16:13 Read: times |
#100184 - series termination Responding to: ???'s previous message |
Hi Kai!
Do you mean 47 ohm in series with the 74HC14 output, to isolate the chip from the kabel and the "nasty outside world", or did I get it wrong? BTW - as I wrote in my last reply, I do consider moving the driver from the relay/PSU board to the µC board. I know I will "polute" my ground with the drawn ciurrent (max. aprox. 300 mA), but having a groundplane, and the option of placing the driver where the ground enters the board, I wont have these current s flowing around. I could even make a separate groundwire for this. Any comments apreciated Ha' en fortsat god weekend! Per |
| Topic | Author | Date |
| driving ribboncabel - ESD precautions | 01/01/70 00:00 | |
| on interconnect | 01/01/70 00:00 | |
| Alternative | 01/01/70 00:00 | |
| comments. | 01/01/70 00:00 | |
| Recommended scheme | 01/01/70 00:00 | |
| 74H? | 01/01/70 00:00 | |
| nope | 01/01/70 00:00 | |
| Don't forget series termination | 01/01/70 00:00 | |
| series termination | 01/01/70 00:00 | |
| re: series termination | 01/01/70 00:00 | |
| an, in my opinion, much better way is to | 01/01/70 00:00 | |
| Series termination is the correct method | 01/01/70 00:00 | |
| both? | 01/01/70 00:00 | |
| Series termination prevents overshot | 01/01/70 00:00 | |
| HUH? | 01/01/70 00:00 | |
| Huh Huh? | 01/01/70 00:00 | |
| read the original post | 01/01/70 00:00 | |
| Think about the newbies | 01/01/70 00:00 | |
| That is exacltly why I always push the u | 01/01/70 00:00 | |
| RS485 is a good alternative, indeed | 01/01/70 00:00 | |
| Use a relay driver and sleep well ... | 01/01/70 00:00 | |
ferite bead, series termination, or | 01/01/70 00:00 |