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Semiconductor diode

Figure 8.
I-V curve of a diode
. Source. This image shows well how the diode is only an approximation of the ideal one way device. Notably, there is this $V_{d}$ non-ideal voltage drop across the device, which can be modelled as constant. It is however an exponential in fact.

Diodes Explained by The Engineering Mindset (2020)

. Source. Good video:

youtu.be/Fwj_d3uO5g8?t=153 how it works
youtu.be/Fwj_d3uO5g8?t=514 applications:
- protection against accidental battery inversion
- rectifiers, notably mentions a diode bridge

Table of contents 216 2
- Crystal detector Semiconductor diode 152 1
  - Crystal radio Crystal detector 48

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