| ??? 03/06/08 22:23 Read: times Msg Score: +1 +1 Informative |
#151974 - Design Approach Responding to: ???'s previous message |
Look at the primary of the transformer as an inductor. You need to design it so that, at the operating frequency, the inductor DOESN'T Saturate. Energy now stored is 1/2 L I^2, and will be transferred to the load when you switch off the IGBT. Personally, I'd use a Mosfet, you don't need an IGBT for this at all, and your switching losses may well be lower.
Steve |
| Topic | Author | Date |
| flyback boost | 01/01/70 00:00 | |
| Isolated? | 01/01/70 00:00 | |
| Isolated flyback ? | 01/01/70 00:00 | |
| Hence the name? | 01/01/70 00:00 | |
| Yep | 01/01/70 00:00 | |
| The same circuit | 01/01/70 00:00 | |
| Clarification | 01/01/70 00:00 | |
| Design Approach | 01/01/70 00:00 | |
| Using Iron Powder core | 01/01/70 00:00 | |
| The frequency depends ... | 01/01/70 00:00 | |
| Faraday had something to do with this.. | 01/01/70 00:00 | |
| Stored energy | 01/01/70 00:00 | |
Curious: what if? | 01/01/70 00:00 | |
| Some principles learned the hard way | 01/01/70 00:00 | |
| My observation.... | 01/01/70 00:00 |