2015-08-21
273
Electrical models of electronic devices are used for analysing and calculating electronic circuits. The model of a device depends on a frequency range. A high frequency diode model is shown in Fig. 3.4, where 
is a total capacitance of the diode - a barrier and diffusion; 
is integrated resistance of a p-n junction; 
is defined from the current-voltage characteristic; 
is distributed resistance of a base.
Fig. 3.4. High frequency model of a semiconductor diode
The spurious capacitance and inductance of holders are shown by dotted lines.
The low frequency diode model consists of and only.
