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Diodes : Diode Bridge

A diode is an electronic component with two ends, or terminals, that only allows current flow in one direction. Depending on their design, diodes can act as a regulator or check valve, rectifying and controlling the current in its forward direction to achieve a specific response. A diode bridge is a configuration of four or more diodes arranged such that regardless of the input polarity, the same output polarity will always be delivered by the bridge. Because of this ability, bridge diodes are often used to convert alternating current signals to direct current.