Lab2 - ECE 322L: Microelectronics Lab Lab #2: Diode...

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ECE 322L: Microelectronics Lab Lab #2: Diode Characteristics and Rectifiers Objectives: Understand the I-V (current-voltage) characteristics of semiconductor diodes and design simple rectifier circuits with them. Materials: Power supply Function generator Oscilloscope Solderless breadboard Hookup wire One 10K resistor One 1N4004 diode Setup: Build the circuit shown below. v i (t) v o (t) v d (t) i(t) 10K 1N4004 + - + - + - Background: Diodes: The ideal diode will allow no current flow if the anode (+) terminal is at a lower voltage than the cathode (-) terminal. That is, i ( t ) = 0 when v d ( t ) < 0 in the circuit diagram above. The ideal diode can not sustain a forward bias voltage drop and will pass as much current as necessary in the forward direction to negate any attempted application of forward voltage bias. That is, v d ( t ) = 0 and i ( t ) 0 when attempting to apply v d ( t ) 0. Real diodes (like the 1N4004) have some non-zero reverse bias current and exhibit increasing forward-bias voltage drop with
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This note was uploaded on 10/11/2011 for the course ECE 322 taught by Professor Staff during the Spring '08 term at Boise State.

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Lab2 - ECE 322L: Microelectronics Lab Lab #2: Diode...

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