Re: DC boost converter max power ?
I'll read later on...too many informations and making all more complicated
I'll read later on...too many informations and making all more complicated
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Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - ShenanigansComment
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Re: DC boost converter max power ?
Yup I don't understand your postComment
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Re: DC boost converter max power ?
Is it possible only using 1 FET and resistor voltage divider for making MC34063 doing the step up ? if more than that, what's the different with 555, I got 220V with RL = 6K now..
my inductor is not perfect that's why the output is not good, a lot of flux loss
I have 8 inductors in series for 380 uH value.Comment
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Re: DC boost converter max power ?
thanks for all the infos, this one is similar :
http://radioactiveathome.org/en/hard...r-with-a-choke
that's PNP transistor functioning as a follower for making FET switching fasterComment
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Re: DC boost converter max power ?
... And how is that so different about the circuit in post #105?
http://darkside.higashino.jp/resourc...se/chopper.gif
Wow, another PNP driving a FET.
The other two circuits, from post #49:
https://www.birdandgua.net/bird/wp-c...05/image39.png
http://www.mikrocontroller.net/attac..._180V_25mA.png
The same basic topology. Coincidence?
PS: You can't have feedback without a resistive divider from the output, so... I'm not really sure where your question comes from, or what it's about.
You have at least THREE (now FOUR, with this last one you found) designs ready-made for you. What more do you want???Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - ShenanigansComment
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Re: DC boost converter max power ?
Those designs are basically has the same way with 555...
currently I'm using 700uH hand made inductor but I can't increase voltage anymore, stack on 185V on 5K RL,
I'm not sure, I will get a better result with those chips but I will give a tryLast edited by bianchi77; 12-14-2016, 01:33 AM.Comment
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Re: DC boost converter max power ?
http://www.learnabout-electronics.org/PSU/psu32.php
Read: Boost converter Operation/example.
You should get a generator to drive the MOSFET and vary the ON/OFF time to see the effect.Last edited by budm; 12-14-2016, 02:53 PM.Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: DC boost converter max power ?
How can I add TL 431 and optocoupler for feedback?
Inspiration :
http://u.dianyuan.com/bbs/u/68/2457951218099004.gif
but not sure if it's the right way modifying my voltage divider..Comment
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Re: DC boost converter max power ?
@budm, thanks for the bookComment
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Re: DC boost converter max power ?
can it be :Attached FilesComment
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Re: DC boost converter max power ?
Why exactly do you want / need opto feedback?
Compensating the TL431 is only gonna be one extra headache, which i don't think you really want, considering all the previous adventures...Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - ShenanigansComment
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Re: DC boost converter max power ?
Okay, I only want to know how that coupler and TL431 work, is that the right circuit ? more or less ?Comment
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Re: DC boost converter max power ?
I got 207V , RL = 2K and f = 13.14 KHz, it's less efficient but it does the job..
and abit noisy with low frequencyComment
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Re: DC boost converter max power ?
One question : does f pole equal to f switch ?Comment
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