| ??? 08/02/11 18:04 Read: times |
#183152 - maybe not Responding to: ???'s previous message |
most of the time, spikes and surges are sufficient to cause an upset but not destruction of hardware. It seems to me that he's trying to avoid the latter, and a power zener, or a zener in combination with a transistor to increase the current, can limit the voltage quickly enough to avoid damage. If he does need a crowbar, the fuse+zener+SCR is probably the cheapest, though there are more costly single-component crowbars available. The zener, after all, won't be much quicker in combination with the SCR than in combination with a transistor.
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 |