Active Sallen-Key Low-Pass Filters
Electric Circuits Demo #15: illustrates design of active Sallen-Key low-pass filter based on the usage of an ideal operational amplifier (created as a galaxy). Depending on used parameters, such a filter can exhibit a variety of different transfer functions, including Butterworth, Chebyshev, and Bessel shapes. 
» Keywords: Linear Electric Circuits
» Available in: Lab Expert Demos, Optical System Demos, Photonic Circuits Demos
Ideal Gyrator as Cosimulated Electrical Element
Custom linear Electrical Elements can be easily created using Python cosimulation with the PIC_CoSimInterface module. Similar to native Electrical Elements, such custom modules support only SMATRIX simulation domain. As an example, please inspect IdealGyrator module provided with this demo. Use macro "Add PIC_CoSimInterface Galaxy Parameters" to simplify creation of your own Electrical Elements. Ideal Gyrator is a passive, linear, lossless, two-port electrical network element proposed in 1948 by Bernard D. H. Tellegen [1] as a hypothetical fifth linear element after the resistor, capacitor, inductor and ideal transformer. Unlike the four conventional elements, the gyrator is non-reciprocal. Because of this, it makes possible network realizations of isolators and circulators. This demo illustrates the most practical form of the isolator that consists of one ideal gyrator and one resistor with a matching resistance. 
» Keywords: Isolator, Gyrator, Electric Circuits, Circulator.
» Available in: Photonic Circuits Demos
Verification of Kirchhoff's Current Law
Electric Circuits Demo #8: illustration of Kirchhoff's current law. 
» Keywords: Linear Electric Circuits
» Available in: Lab Expert Demos, Optical System Demos, Photonic Circuits Demos