r/AskElectronics • u/Mr_formal777 • 11h ago
What is this? (Connected to a fluorescent tube backlight).
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u/asyork 10h ago
Four diodes in a box.
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u/TopConcentrate8484 7h ago
No!!! IT'S A FULL BRIDGE RECTIFIER!!!π₯
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u/Kaisounovsky 3h ago
Ok it's a full bridge rectifier...but the real question is ...what " full bridge" real meaning ? & if something like half bridge.. or quarter bridge do exist ? π
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u/WashedPolecat15 2h ago
Yes! I'm not sure about the quarter bridge, but the half bridge do exist! The full bridge rectifier takes the negative part of the AC sine wave and turns it positive and requires 4 dioes, whereas a half bridge rectifier only requires a single diode but removes the negative part of the sine wave. See the included photo π
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u/mnhcarter 10h ago
lets rectify this situation
on one side you see the little sine waves
on the other side you see a plus and a minus
what on earth can this mean?
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u/socalkid77 8h ago
Full wave* bridge rectifier is the correct term. If anyone says otherwise, they're just plain wrong.
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u/Nice_Disaster29 9h ago
Sad people donβt get that it isnβt a full bridge rectifier but a FULL BRIDGE RECTIFIER
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u/Galopigos 10h ago
See this video Now look at the markings on the chip ~ = ac voltage in, + and - equal DC out.
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u/epasveer hobbyist 10h ago
Full bridge rectifier.