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Bridge Rectifier

Full-bridge rectifier issues?

Hello I have a question. Why using a 4 wave diode bridge rectifier circuit, at half Positive D2 and D4 are reversed? refer to the attached image to see what D2 and http://www.industrial-electronics.com/image/four-diode-full-wave-rectifier_7-3.jpg 20bridge D4% Why are reverse-D4 and D2? Are you for practice, we can not simply say D2 is reverse biased. For example, when half positive which is not usually used in the anode of D2 at the same time while going to D1 as the generation of alternating current?

It is sad to note that the diagram is not drawn up the clarity of the role of FWB. These ground connections must be eliminated, and the connected load directly to the Nikon D3, D4 to D1-D2 output union. It is much easier to visualize the flow. Remember current flows always in the same direction as the load (at left in my review of the figure). So I think that fluctuations conduction of diode D1 between the pair-D3-D4 and D2 pair is evident. Throughout pointing down the middle LED +, through the UP-diodes along the middle of the -. Re your question: More than half of +, where D1 is polarized D3 comes from its current through the load, not D2, which can not pass the current in that direction.

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