| ??? 10/23/07 00:02 Read: times |
#146027 - If you need to ask the question... Responding to: ???'s previous message |
...then you probably shouldn't be messing with live 220V AC mains!
One of the reasons why so many produncts use these external "wall-wart" power supplies is because even those manufacturers don't want to get involved with live AC mains - so they just buy-in ready made tested and approved units! To get so small, your phone charger is almost certainly switch-mode - which is also not a beginner's exercise. But you can easily get a 12V DC supply using just a simple trasnformer and recifier - and, at only 100mA, it needn't be very big... |
| Topic | Author | Date |
| small dimension power supply | 01/01/70 00:00 | |
| If you need to ask the question... | 01/01/70 00:00 | |
| And | 01/01/70 00:00 | |
| Mr.Wichit Sirichote | 01/01/70 00:00 | |
| input & output isolation | 01/01/70 00:00 | |
| No, that\'s not it | 01/01/70 00:00 | |
| it is smps | 01/01/70 00:00 | |
| I thought you said it was 220 VAC | 01/01/70 00:00 | |
| his boss probably right | 01/01/70 00:00 | |
| Toroidal x`mer | 01/01/70 00:00 | |
| cost | 01/01/70 00:00 | |
| Surges | 01/01/70 00:00 | |
| A capacitor main Supply. | 01/01/70 00:00 | |
| ARGH | 01/01/70 00:00 | |
They have their place - but not for Hendryawan | 01/01/70 00:00 |