Timeline for Is it possible to make an IGBT to work at duty cycles up to 100%?
Current License: CC BY-SA 4.0
18 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| S Sep 21, 2019 at 19:00 | history | bounty ended | CommunityBot | ||
| S Sep 21, 2019 at 19:00 | history | notice removed | CommunityBot | ||
| Sep 17, 2019 at 1:43 | answer | added | MondayTuesdayWednesday | timeline score: 0 | |
| Sep 13, 2019 at 18:51 | comment | added | user57037 | Simulation is good. It can save a lot of time. If you find that inability to simulate is COSTING YOU TIME, then consider if it makes sense to build and test instead. Empiricism is an integral part of science. It is not as many nowadays seem to believe, inferior to simulation and analysis. Rather, empiricism, simulation and analysis all have to exist together and be given their due. | |
| Sep 13, 2019 at 18:03 | comment | added | user57037 | There is absolutely no problem turning on an IGBT continuously. Why wouldn't it work? Just make sure it does not overheat. | |
| S Sep 13, 2019 at 17:43 | history | bounty started | yogece | ||
| S Sep 13, 2019 at 17:43 | history | notice added | yogece | Authoritative reference needed | |
| Sep 11, 2019 at 12:30 | comment | added | yogece | @Bimpelrekkie yeah rightly you have mentioned "The manufacturer doesn't have the application which requires the IGBT to work continuously in the duty cycle close to 100% or over 95%" as you mentioned i am trying to find some resources even i couldn't find any publication in the IEEE for the same.It would be helpful if you could provide some pointers regarding this | |
| Sep 11, 2019 at 12:10 | comment | added | Bimpelrekkie | The manufacturer doesn't have the application which requires the IGBT to work continuously in the duty cycle close to 100% or over 95% OK, so that then means it is impossible. Or is it? You appear to "design" exclusively based on the work of others and that then means if you want something that hasn't been done before (or done before but not shared with the world) then you cannot do it. Either accept that or use your brain and think what happens and design what you need. | |
| Sep 11, 2019 at 12:03 | comment | added | yogece | @Bimpelrekkie i have gone through the limitations of IGBT as manufacturers suggests to look at Tj of the IGBT& diode. The manufacturer doesn't have the application which requires the IGBT to work continuously in the duty cycle close to 100% or over 95%. | |
| Sep 11, 2019 at 11:55 | comment | added | yogece | @TurboJ yes.i haven't tested the IGBT with 100% duty cycle. I would like to operate @ duty cycle close to 100% . Its okay if it is 95% and above | |
| Sep 11, 2019 at 8:54 | answer | added | pericynthion | timeline score: 8 | |
| Sep 11, 2019 at 8:45 | review | Close votes | |||
| Sep 13, 2019 at 17:45 | |||||
| Sep 11, 2019 at 8:32 | comment | added | Turbo J |
Can your unspecified low side driver output 15V V_GE continously?
|
|
| Sep 11, 2019 at 8:26 | comment | added | Bimpelrekkie | ...Maybe your application causes the device to heat up when it is on due to a large current. Then you make sure that that is not an issue, the fact that the IGBT will be at 100% duty cycle is irrelevant. What is relevant is maximum continuous current, continuous power dissipation and keeping the IGBT's temperature low enough (use a heatsink). For the other points: you need to do more research on your own and also understand what you're doing. Regarding simulations: depending on how YOU use it you can get completely inaccurate or very accurate results. | |
| Sep 11, 2019 at 8:25 | comment | added | Bimpelrekkie | You need to take a step back and think what "using XYZ at 100% duty cycle" actually means. When will the device be on and when will it be off? Is it possible to operate IGBT up to 100% duty cycle? If I would answer No then I'm saying that I cannot switch this IGBT on for 100% of the time that I am using it. Does that make sense? If (almost) no power is dissipated in the IGBT, what prevents me from keeping it switched on all the time?... | |
| Sep 11, 2019 at 7:36 | history | edited | JRE | CC BY-SA 4.0 |
added 43 characters in body; edited title
|
| Sep 11, 2019 at 7:26 | history | asked | yogece | CC BY-SA 4.0 |