Switche-like Diodes and NgSpice Simulations - Integrated Circuits - - An Online Book - |
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Integrated Circuits http://www.globalsino.com/ICs/ | |||||||||||||||||||||||||||||||||||
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There are two types of switches: are available: In the simulations, the direction of positive controlling current flow is from the positive node, through the source, to the negative node. Even though the switch model allows an almost ideal switch in ngspice, it is still not quite ideal, meaning the resistance can not be changed from 0 to infinity. By proper selection of the on and off resistances, they can be effectively zero and infinity in comparison to other circuit elements. The available parameters are listed in Table. Table 4693. Parameters for NgSpice simulations of voltage and current switches. [1]
Figure 4693 shows an example which includes a threshold-voltage switch-like (ideal) diode. Figure 4693. Electrical circuit with a threshold-voltage switch-like (ideal) diode. ================================================= Simulation of electrical circuits with a threshold-voltage switch-like (ideal) diode (Figure 4693): code:
[1] NgSpice Manual.
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