| ??? 12/11/08 06:37 Read: times |
#160837 - Protecting supply |
I have a controller which supply 24VDC to a far contactor , in the system . This 24VDC is isolated from the rest of the circuit, now the problem is when some repair is being performed in their machines the mechanics very often apply 150VDC to our controllers 24VDC side burning the section . Is there any solution to protect the OUTPUT from high voltage?
Regards/ Ap |
| Topic | Author | Date |
| Protecting supply | 01/01/70 00:00 | |
| Of course there are | 01/01/70 00:00 | |
| info | 01/01/70 00:00 | |
| Crowbar | 01/01/70 00:00 | |
| crowbar | 01/01/70 00:00 | |
| Like this | 01/01/70 00:00 | |
| Short-circuit protection | 01/01/70 00:00 | |
| I like Kai's solution better! | 01/01/70 00:00 | |
| that MAY (I emphasize MAY) work | 01/01/70 00:00 | |
| TVS might blow up | 01/01/70 00:00 | |
| SCR survival! | 01/01/70 00:00 | |
| How attack from both directions? | 01/01/70 00:00 | |
| No nothing is removed | 01/01/70 00:00 | |
| Distributed equipment to protect? | 01/01/70 00:00 | |
| fast response time is necessary | 01/01/70 00:00 | |
| Look at an oscilloscope trigger circuit | 01/01/70 00:00 | |
| and... | 01/01/70 00:00 | |
| Mosfet | 01/01/70 00:00 | |
| The other way round | 01/01/70 00:00 | |
| not a Zener | 01/01/70 00:00 | |
| SCRs are slow! | 01/01/70 00:00 | |
| Zeners are slow! | 01/01/70 00:00 | |
| Slow? | 01/01/70 00:00 | |
| Try to convince the mechancis by arguing... | 01/01/70 00:00 | |
| Nice grip... | 01/01/70 00:00 | |
Maybe you can reverse the damage | 01/01/70 00:00 |