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glossary:bridge_rectifier

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glossary:bridge_rectifier [2014/11/11 13:29] (current)
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 +===== Bridge rectifier =====
  
 +A diode bridge (occasionall called a Graetz bridge)is an arrangement of four diodes connected in a bridge circuit as shown below, that provides the same polarity of output voltage for any polarity of the input voltage. When used in its most common application,​ for conversion of alternating current (AC) input into direct current (DC) output, it is known as a bridge rectifier. The bridge recitifier provides full wave rectification from a two wire AC input (saving the cost of a center tapped transformer) but has two diode drops rather than one reducing efficiency over a center tap based design for the same output voltage.
 +
 +{{:​glossary:​bridge-2.gif|}}
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 +The diagram shows the operation of a bridge rectifier as it converts AC to DC. Notice how alternate pairs of diodes conduct.
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 +{{:​glossary:​bridge-3.jpg|}}
glossary/bridge_rectifier.txt ยท Last modified: 2014/11/11 13:29 (external edit)