![]() After building virt-viewer or virt-viewer-gtk3, make sure you have installed gtk-mac-bundler.You can then use the bundle/remote-viewer.bundle and bundle/remote-viewer-gtk3. This uses gtk-mac-bundler from the gtk-osx project. You would use the sensitivity setting for discovering the maximum range of circuit performance and the causes of extreme operation. Sensitivity causes a DC sensitivity analysis to be performed in which one or more output variables may be specified. Specifically, the open loop gain is 250, I'm returning 10% of the output signal to the base through feedback, and the gain equation gives 250/(1+250*0.1) = 9.6 expected gain. The SPICE jhbuild moduleset also comes with the needed files to generate an OSX bundle for easy deployment. To see the resistors, independent voltage and current source, diode and bipolar transistors. On the other hand, since I'm using Q2's collector to supply the voltage for the biasing voltage divider (a form of negative feedback) I might have expected that the gain would roughly be (R4 + R5)/R5 ≈ 10. I expected the current source "active load" in Q2's collector to present a higher impedance and result in a higher gain. This is comparable to a collector resistor of about 12.5 kΩ (assuming total emitter resistance around 50 Ω at signal frequencies). I've simulated this circuit in MacSpice and found a gain of about 250. ![]() C2 bypasses R6 to increase the gain at signal frequencies. R4 and R5 form a biasing voltage divider supplied from Q2's collector. Q1 serves as a current source "active load" for the common emitter amplifier. Circuit simulation is a way of building and testing virtual models of electronic devices. The program works on Unix-type systems andMSDOS.I've been self-studying electronics and am currently trying to design a high-gain single-stage BJT amplifier. MacSpice is an electronic circuit simulator. For Spice3, you will need aC compiler that can compileK&R C, not ANSI C. To model this circuit with SPICE, we only need three components: the input source, the resistor, and the zener diode. Note that all the programs are released in source code form.You will need a compiler to create the executables to run on your system. Vin macspice plus What if we hooked up a potentiometer to the output of the circuit I had a 10k-ohm potentiometer in my toolbox, so I hooked it up to the output of the zener regulator. JSPICE is a simulator for superconductor andsemiconductor circuits and incorporates the Josephson junction model. KSPICE, also available from the above page, is basedon a version of SPICE3, has 'improved transient analysis of lossy transmission lines'. ![]() Spice3 is released under the BSD licence ('license'). The programis made up of two parts: the back-end simulator and a front-end user interface, called Nutmeg, that displays information fordata analysis and plotting. It supports non-linear DC and transient, and linear AC analyses.To quote from its documentation, your circuits may contain 'resistors, capacitors, inductors, mutual inductors, independent voltageand current sources, four types of dependent sources, lossless and lossy transmission lines (two separate implementations), switches,uniform distributed RC lines, and the five most common semiconductor devices: diodes, BJTs, JFETs, MESFETs, and MOSFETs'. source (Isc) in parallel with a diode and shunt resistance (Rsh) and in series with a. SPICE is probably one of the best known circuit simulators around. In this work, the program MacSPICE, a derivative of SPICE3f4. ![]()
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