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Old 31st Jul 2020, 2:35 pm   #83
Refugee
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Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 5,549
Default Re: High voltage regulator circuit.

Would you be able to add a few turns to your mains transformer to get 5 to 12 volts?
You will then be able to power your TL431 without a high value dropper resistor.
There is nothing stopping you powering it independently.
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