Difference between revisions of "Capacitive Dropper"

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(Created page with "== Reference == * https://www.eevblog.com/forum/projects/non-isolated-acdc-buck-converter-with-no-transformer-for-microcontroller/ Maybe it was a simple capacitive dropper pow...")
 
 
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=== Basic RC Buck ===
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<gallery>
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File:2019-05-14_004805.png| Basic RC Buck
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File:RC buck.png | C1 / R1 / BD1 / DZ1
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</gallery>
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{| class="wikitable sortable"
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|-
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! Part !! Description
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|-
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| C1 || Buck step down capacitor
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|-
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| R1 || discharge resistor
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|-
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| BD1 || bridge diode (4pcs of 1N4007)
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|-
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| DZ1 || Zener diode (24V, 12V, 5V, etc)
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|}
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== Documents ==
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* [[Safety capacitor]]
 
== Reference ==
 
== Reference ==
 
* https://www.eevblog.com/forum/projects/non-isolated-acdc-buck-converter-with-no-transformer-for-microcontroller/
 
* https://www.eevblog.com/forum/projects/non-isolated-acdc-buck-converter-with-no-transformer-for-microcontroller/
 
Maybe it was a simple capacitive dropper power supply  (use a capacitor and resistor to go down to about 10-30v then use a linear regulator? )
 
Maybe it was a simple capacitive dropper power supply  (use a capacitor and resistor to go down to about 10-30v then use a linear regulator? )
 
* See this appnote : http://ww1.microchip.com/downloads/en/appnotes/00954A.pdf
 
* See this appnote : http://ww1.microchip.com/downloads/en/appnotes/00954A.pdf
[[category: AC-DC Solutions]]
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* Use guide [[File:Capacitive_dropper.pdf|:File:Capacitive_dropper.pdf]]
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[[category: Non-Isolated ACDC]]

Latest revision as of 06:55, 24 January 2021

Basic RC Buck

Part Description
C1 Buck step down capacitor
R1 discharge resistor
BD1 bridge diode (4pcs of 1N4007)
DZ1 Zener diode (24V, 12V, 5V, etc)

Documents

Reference

Maybe it was a simple capacitive dropper power supply (use a capacitor and resistor to go down to about 10-30v then use a linear regulator? )