| ??? 07/28/11 16:54 Read: times |
#183097 - maybe you need some power zeners Responding to: ???'s previous message |
If voltage spikes (surges) are your problem, perhaps power zeners are the answer. Placing these, typically in TO3 cases, and sensing the current through them by monitoring the resistor voltage, you can do what's needed, e.g. sending a shutdown signal to the main PSU, when that's called-for. Back in the days when nearly everything operated from 5 volts, it was simply a matter of using a 5.6 volt zener with, say 100-watt rating and firing an SCR when the anode voltage went above 5.6 volts. It might be a bit less simple today ... <sigh> ...
RE |
| Topic | Author | Date |
| HDD surge protector, what would it take? | 01/01/70 00:00 | |
| My thoughts... | 01/01/70 00:00 | |
| Backups | 01/01/70 00:00 | |
| Other Discussion | 01/01/70 00:00 | |
| A good PSU is a good investment - backup policy even better | 01/01/70 00:00 | |
| How good is a good PSU? | 01/01/70 00:00 | |
| Similar experience | 01/01/70 00:00 | |
| maybe you need some power zeners | 01/01/70 00:00 | |
| Surge protectors, zener + crowbar | 01/01/70 00:00 | |
| a zener is too slow | 01/01/70 00:00 | |
| maybe not | 01/01/70 00:00 | |
How slow is slow? | 01/01/70 00:00 | |
| HDD +12V | 01/01/70 00:00 | |
| PSU allowed to do +/- 10% on 12V rail at max load | 01/01/70 00:00 | |
| That's useful | 01/01/70 00:00 |