Description
DroidTesla is a simple and powerful SPICE engine.SPICE is an acronym for Simulation Program with Integrated Circuit Emphasis
and was inspired by the need to accurately model devices used in integrated circuit design.
DroidTesla simulator solves basic resistive circuits using Kirchoff’s Current Law (KCL)
in much the same way a student in a circuits class would,the simulator systematically forms a matrix in accordance
with KCL and then proceeds to solve for the unknown quantities using various algebraic
techniques such as Gaussian elimination and sparse matrix techniques.
For non-linear components, such as the diode and BJT ,DroidTesla engine searching for the approximate solution by making an initial guess at an answer
and then improving the solution with successive calculations built upon this guess.
This is called an iterative process.DroidTesla simulation uses the Newton-Raphson iterative algorithm
to solve circuits with non-linear I/V relationships.
For reactive elements(capacitors and inductors),the DroidTesla uses numeric integration methods to approximate the state of the reactive elements as a function of time.
DroidTesla offers the Trapezoidal(I'll add a GEAR method later) integration methods to approximate the state of the reactive elements.
Although for most circuits, both methods will provide almost identical results,
it is generally regarded that the Gear method is more stable, but trapezoidal method is faster and more accurate.
DroidTesla for now can simulate:
-Resistor
-Capacitor
-Inductor
-Potentiometer (available only in pro version)
-Light Bulb (available only in pro version)
-Ideal operational amplifier
-Bipolar junction transistor (NPN PNP)
-MOSFET N-channel depletion
-MOSFET N-channel enhancement
-MOSFET P-channel depletion
-MOSFET P-channel enhancement
-JFET N and P (available only in pro version)
-PN Diode
-PN Led diode
-PN Zener diode
-AC current source
-DC current source
-AC voltage source
-DC voltage(battery) source
-CCVS - current controlled voltage source
-CCCS - current controlled current source
-VCVS - voltage controlled voltage source
-VCCS - voltage controlled current source
-Square wave voltage source (available only in pro version)
-Triangle wave voltage source (available only in pro version)
-AC ampermeter
-DC ampermeter
-AC voltmeter
-DC voltmeter
-Two channe oscilloscope (available only in pro version)
-SPST Switch (available only in pro version)
-SPDT Switch (available only in pro version)
-Voltage controlled switch (available only in pro version)
-Current controlled switch (available only in pro version)
-AND (available only in pro version)
-NAND (available only in pro version)
-OR (available only in pro version)
-NOR (available only in pro version)
-NOT (available only in pro version)
-XOR (available only in pro version)
-XNOR (available only in pro version)
-JK flip-flop (available only in pro version)
-7 Segment Display (available only in pro version)
-IC 555 (available only in pro version)
-Transformer (available only in pro version)
-Graetz Circuit(available only in pro version)
If you are making an
oscillators you have to put a small initial value on some of the
reactive elements.(see the examples)
Joe
Apr 15, 2012 10:35:05 PM
Unintuitive I'm an EE and for the last 20 minutes I have been trying to create a simple resistive, DC circuit with a meter or two. Inserting a component in place of a line is straight forward once you figure out how to do it. However, I haven't figured out how to insert a line. Nodes, however, seem to appear randomly as you attempt to move lines or insert components. The DC voltage source is installed with the negative terminal on top which seems backwards since the grounds are, by default, on the bottom. A simple Help file might have alleviated some of my frustration but there's not one. Might end up being a good product but the interface needs a lot of work. There is no way I would get the paid version with the free version working this poorly.
Bob
Apr 15, 2012 8:25:29 PM
Looks good, but... The non inverting op amp circuit I tried did not simulate correctly. I am an EE and I have simulated this simple before on other spice simulators. This simulator ignored the capacitive reactance until the the cap was larger, and the it treated the cap as a short. In short I tried the simulator, but it didn't work as a real simulator. Make it work and I will purchase today. Real cool in concept though.
abhinn.pattani
Apr 15, 2012 5:50:17 AM
Awesome.... Its easy to make circuits bt need more components in library.....
camx
Apr 3, 2012 2:15:07 PM
No examples Need examples to evaluate
flash23
Apr 2, 2012 12:30:49 PM
Best for students
Q
Apr 1, 2012 12:27:29 PM
No examples no pay Come on a few examples to demo would be good.
Robert
Mar 27, 2012 4:46:08 PM
Examples dont work. Stupid to issue this free without working examples. How else u learn app? Jeesh
Colin
Mar 27, 2012 4:31:22 AM
I agreed to Google terms of use, not going to read your modified one.
s10stealth
Mar 22, 2012 11:29:48 PM
Too limited to test Examples don't work unless you have full version.
Stefan
Mar 21, 2012 1:57:56 PM
Amazing Best for students!