| ??? 02/14/06 02:34 Modified: 02/14/06 02:34 Read: times |
#109892 - Soft start Responding to: ???'s previous message |
Kaz said:
how can I acheive soft start, I guess I have to use soft cap for that ? You connect transformer to mains via a resistor or special NTC (build for inrush current applications) of about 10...100Ohms for about 1sec. Immediately afterwards a relay shorts this impedance. Soft-starting is a must with all bigger toroid transformers. You can buy ready made soft starters moduls, by the way, but mostly they are much more expensive than building it by yourself. Kai |
| Topic | Author | Date |
| Discharging capacitors? | 01/01/70 00:00 | |
| sorry I missed that.. | 01/01/70 00:00 | |
| many versions have been implemented | 01/01/70 00:00 | |
| Simplest | 01/01/70 00:00 | |
| Alternatively... | 01/01/70 00:00 | |
| Switch | 01/01/70 00:00 | |
| thankyou | 01/01/70 00:00 | |
| Emergency stop | 01/01/70 00:00 | |
| Soft start | 01/01/70 00:00 | |
| Combine | 01/01/70 00:00 | |
| if it has to be done the right wa | 01/01/70 00:00 | |
| SPS? | 01/01/70 00:00 | |
| if a SPS is a switching power supply - y | 01/01/70 00:00 | |
| resistor value ?? | 01/01/70 00:00 | |
| DIY | 01/01/70 00:00 | |
| Hmm... | 01/01/70 00:00 | |
the crux | 01/01/70 00:00 | |
| check current rating of capacitors ... | 01/01/70 00:00 | |
| search | 01/01/70 00:00 |