Is an electronic device with two electrodes, as either an
electron tube with an anode and a cathode or a transistor with a
PN junction, used mainly as a rectifier since it conducts
current in only one direction.
is commonly used in a bridge form to convert AC voltage to DC
Voltage (See drawing A).
diode bridge can additionally be used to ensure that the
polarity of the bridge output remains the same regardless of the
(See drawing B).
times, the diode can be connected in
parallel to the relay coil for the purpose of grounding spikes (rV/rt)
(See drawing C).