Tagged Questions

About tools to simulate circuits. Specify the tool used.

15k views

What are the freeware SPICE simulators available?

Does anyone know of a freeware SPICE / circuit simulator? SPICE (Simulation Program with Integrated Circuit Emphasis)is a general-purpose, open source analog electronic circuit simulator. It is a ...
2k views

How do I learn HDL

I have a course in Digital Design in this semester and just love it. Now I know that most of the work in embedded system and digital design is done on computer simulators first and then implemented ...
3k views

Simple Circuit Simulation tutorial

For the last few days I have been trying without any luck to find a good tutorial on simple circuit simulations. I am a relatively new hobbyist and I figure if I use simulations and play around the ...
5k views

Comparison Between SPICE Simulators

I've recently realized that I can't do everything easily in ngspice, mainly because analysis has to be performed through the interpreter. I'm considering switching to a new SPICE simulator. I'd like ...
450 views

Testing/Simulating Circuits

What techniques do you use for testing/simulating circuits? As at my college we use Circuit Wizard which we have to simulate our circuit on. I am looking for something a bit more advance. I have ...
2k views

Does an ideal capacitor dissipate power?

On several circuit simulators I have seen capacitors with a "Power" figure. Also, I have wondered how capacitive power supplies work. Does an ideal, zero resistance, zero leakage, zero inductance ...
2k views

IGBT as a switch

I've searched over the net on this issue but found no answers. In your own experience or thought, is it possible to use igbt as a switch? If yes, please provide schematic as an example. EDIT: This ...
616 views

KCL vs KVL in circuit analysis

I'm making a simplified version of SPICE to teach basic electronics to high school students (This is for a high school independent study). Why does SPICE analyze circuits using Kirchhoff's current ...
464 views

transfer function of a full bridge diode rectifier

I'd like to find the s-domain transfer function of a full bridge diode rectifier with capacitive output filter. Surprisingly, there doesn't seem to be much literature on this. Analytically, I am ...
676 views

Wrong outputs in VHDL entity

I have lessons about VHDL in one of my university class and I have to write simple entity which will generate clock from 1MHz source. I'm using CoolRunner-II CPLD ...
117 views

Verilog simulation error, “Module was already declared”

I am running iverilog simulator with a Verilog example of a uart design with testbench. When I run this command, iverilog -o a.vvp uart_tb.v uart.v I get ...
149 views

Simulating IBIS Model in modelSim

I am developing a logic in an FPGA that will act as a controller for a chip by TI. I got the TI chip IBIS model from the TI website. My controller is ready and I want to simulate it using ModelSim. ...
633 views

Circuit Simulation

I am making a circuit simulation program, and I am not sure how to simulate the behavior of Diodes. Take this circuit: ...
172 views

Diode Bridge in Simulator not behaving as expected

Hi I have a Diode Bridge as outlined in the image below. As you can see I am getting a negative voltage on one pair of diodes instead of this voltage being flipped to positive. Can you see anything ...
672 views

which is the best circuit simulator for my purpose?

hi all i want to know the the limit of my circuit,upto which it can withstand,so that i can select or change the components accordingly.When i tried simulation in NI MltiSIM, it works fine,but the ...