Timeline for Plant gain measured with Bode100 dependent on compensator
Current License: CC BY-SA 4.0
10 events
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Jul 19, 2023 at 14:32 | history | edited | Hyp | CC BY-SA 4.0 |
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Jul 19, 2023 at 8:10 | comment | added | Hyp | It sure is. Well, let's see if anyone can answer my original question. | |
Jul 18, 2023 at 17:45 | comment | added | Andy aka | It's worth a go. | |
Jul 18, 2023 at 16:17 | comment | added | Hyp | Yes, I get it. I just wanted to see if anyone had experience with the pitfalls of this solutions. As I said I'm not quite sure yet what ripple I'm actually allowed. And I'm only guessing what frequency this ripple would be, the Royer oscillator properties would probably be a factor. But actually startup time would not be an issue as the oscillator would start at full input voltage and maximum startup speed possible. I like the idea, thanks, maybe I could simulate this. | |
Jul 18, 2023 at 15:42 | comment | added | Andy aka | If you turn M2 off when it reaches the required voltage on the output this should work. | |
Jul 18, 2023 at 15:18 | comment | added | Hyp | Oh, I see. Not sure I could get away with this ripple. Plus I'm worried about what this would do to the startup time of the oscillator. Would you have a link to where a comparator is used this way or a tip as to what to search for, I couldn't find anything. | |
Jul 18, 2023 at 15:00 | comment | added | Andy aka | Oops I meant a 6x voltage multiplier. You would compare the output voltage (a potential divided version of course) with some reference voltage and, use the comparator output to activate (or turn off) the driving circuit. Hysteresis means it won't won't go unstable around the voltage output required but, it will hunt between the hysteresis limits and create ripple. | |
Jul 18, 2023 at 14:56 | comment | added | Hyp | @Andy aka This is called a tripler? The multiplication factor is 6. Anyway, the multiplier is not in the app note, thanks for pointing out the time lag. Yes, I am struggling with stability here. But I do not understand your idea with the comparator, what would you be comparing and how does that help stability? | |
Jul 18, 2023 at 14:13 | comment | added | Andy aka | I didn't see your tripler design in the app note you link. The tripler will produce a lot of time lag and will need extra special compensation to make the output stable. I'd use and output comparator with a tiny bit of hysteresis. | |
Jul 18, 2023 at 12:50 | history | asked | Hyp | CC BY-SA 4.0 |