Timeline for Charging a circuit to around 10kV from 3V (two AA batteries) for discharge over 20msec
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 2, 2019 at 0:35 | comment | added | K H | Exceptional answer Andy =). | |
| Jun 19, 2013 at 8:08 | history | bounty ended | PeterJ | ||
| Jun 17, 2013 at 14:19 | history | edited | Andy aka | CC BY-SA 3.0 |
Additions of simulated design
|
| Jun 14, 2013 at 18:57 | comment | added | Andy aka | @pjc50 - think of the primary as a see-saw with the fulcrum at 3V - one side goes to 0V - the other side has to go to 6V (plus all the leakage spike and resonant crap) | |
| Jun 14, 2013 at 18:55 | comment | added | Andy aka | @pjc50 Firstly, when one fet open circuits, the other one pulls the other side of the primary down to 0V and this immediately forces 6V onto the drain of the releasing mosfet. Secondly there will never be 100% coupling which means a spike and to keep efficiency and switching speed high I'm not wanting to use snubbers. I reckon there will be a complex looking back-emf that could easily hit 30V peaks so I'm being a tad cautious maybe with 60V BUT 40V is too close for comfort and there are more 60V devices than 50V ones. | |
| Jun 14, 2013 at 18:48 | comment | added | pjc50 | Why do the MOSFETs need more rating than the 3V supply? | |
| Jun 14, 2013 at 15:29 | history | edited | Andy aka | CC BY-SA 3.0 |
typos and refinements
|
| Jun 14, 2013 at 15:09 | comment | added | Andy aka | @AnindoGhosh it's a heavy cross you have to bear ;)... This monday of course (hopefully) - I've spent too many years pulling the wool over manager's eyes to know ya can't BS engineers! | |
| Jun 14, 2013 at 15:05 | comment | added | Anindo Ghosh | No, just that I've spent too many years in corporate management, always like to nail down delivery commitments :-D | |
| Jun 14, 2013 at 15:02 | comment | added | Andy aka | @AnindoGhosh are you in a hurry dude LOL | |
| Jun 14, 2013 at 14:56 | comment | added | Anindo Ghosh | Which Monday? :-) | |
| Jun 14, 2013 at 10:26 | history | answered | Andy aka | CC BY-SA 3.0 |