| ??? 03/06/08 07:10 Read: times |
#151939 - flyback boost |
I am developing a boost converter (flyback converter) with input voltage of 20V. The isolated dc output voltage need be 100V (for 100W load). I am using AT89c51 to switch ON/OFF the transistor (by creating PWM waves). I have tried various duty cycles with PWM frequencies varying from 1kHZ to 50KHz to 200kHz. Maximum boost I got was 3. It seems main problem here is by trial and error approach. Is there anyone who have worked with this type of converter and can provide me some advice? |
| 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 |