A voltage reference (also called a band-gap reference) provides the same functionality as a Zener diode, yet requires far less current to maintain a more-accurate voltage. While a Zener diode uses ...

Diodes are electronic components that ... You should be able to recognise the graph of current against voltage for a diode. The diode has a very high resistance in one direction.

Components which show I–V graphs that are not straight lines are non-linear circuit elements. The current through them is not directly proportional to the potential difference across them.

It is the second course in the "Semiconductor Power Device" specialization that focusses on diodes, MOSFETs ... electric field and capacitance versus voltage relation. Next is the derivation of the ...