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From: "Edward Rawde" <invalid@invalid.invalid>
Newsgroups: sci.electronics.design
Subject: Re: 200V at 10mA
Date: Sat, 24 Aug 2024 13:17:45 -0400
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"Lasse Langwadt" <llc@fonz.dk> wrote in message news:vaclif$1d0gn$2@dont-email.me...
> On 8/22/24 11:44, john larkin wrote:
>> On Thu, 22 Aug 2024 10:36:27 +0100, piglet <erichpwagner@hotmail.com>
>> wrote:
>>
>>> On 21/08/2024 17:39, Edward Rawde wrote:
>>>> SYMATTR InstName C5
>>>
>>> If you want to stick with that way-over-complex design you could look
>>> into versapac 6 windings coupled inductors.
>>>
>>> I would not even try that circuit. Better to redesign to use either a
>>> single inductor or a dual coupled inductor like DRQ127 series. if
>>> necessary follow with a cockcroft-walton multiplying rectifier.
>>>
>>> UC3843 control chip would be ideal, cheap, reliable, easy to use,
>>> multisourced.
>>>
>>> piglet
>>
>> I like the auto-flyback circuit, flyback drive into the center tap of
>> a DRQ127. Then maybe a voltage doubler to harvest the p-p swing.
>>
>> And LTC3803 rocks.
>>
>> https://www.dropbox.com/scl/fi/8jwi35owo41lfmonc8y92/LTC3803.jpg?rlkey=l3thy5h4533sxpd152ve24c26&raw=1
>>
>
>
> $0.15 for the first 60V, then the rest of the way with doublers
>
> https://jlcpcb.com/partdetail/LegendSi-LGS6302EP/C5280693

Interesting little device. Thanks.