B2 - Section B2: The Ideal Diode As mentioned in the...

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Section B2: The Ideal Diode As mentioned in the introduction to this section, the diode is the simplest of the nonlinear devices. The circuit symbol for a diode is shown to the right and illustrates its two-terminal nature. What this means is that there are two places to connect the diode to the external circuit, the anode and cathode. We’ll get to this more in a couple minutes but, for normal operating conditions, the anode is more positive than the cathode and current will flow in the direction indicated. An ideal diode is simply a pn junction where the change from p-type to n- type material is assumed to occur instantaneously, also referred to as an abrupt junction . The easiest way to conceptualize this is that we have two separate “chunks” of doped semiconductor that somehow we are able to “stick” together with no change in either segment (the same approach we took when talking about the pn junction).
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B2 - Section B2: The Ideal Diode As mentioned in the...

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