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Application:
Converting AC power from the 60Hz line into DC power for radios, televisions, telephone answering machines, computers,
and many other electronic devices
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Characteristics:
Diodes are two terminal devices like resistors and capacitors
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They're not like capacitors where current is related to the time
derivative of voltage or inductors where the derivative of current is related to voltage
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Diodes only consume power
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They are said to be passive devices
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Diodes tend to permit current flow in one direction, but tend to inhibit current flow in the opposite direction
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When the voltage across the diode is negative, virtually no current flows
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When the diode is ON (Vin > 0), it has no voltage across it so it acts like a short circuit!
When the diode is OFF (Vin < 0), current is zero, so it acts like an open circuit!