Completed Circuit Simulations

The below files are converted from LTSpice to KiCad. The converted schematic file is compatible with KiCad for PCB layout. You can also create a netlist and simulate using Ngspice.

This is a Beta Release. Please mail us at contact-esim@fossee.in in case of any issues.

The link to the LTSpice to KiCad Converter will be released soon.


NoName of the Circuit
102100 KHz Crystal Oscillator Application Circuit with RH111 OpAmp
10174160 decade counter
100Active RC 4th Order Lowpass Filter using LTC1563
99100W Power Amplifier using BJTs
98Single Pole and Two Pole Compensation using RH101A OpAmp
97Power Supply with Positive Adjustable Regulator RH117H
96Power Supply with Positive Adjustable Regulator RH117K
95Inverting Amplifier with LT118A
94Inverting Precision Amplifier using RH27C OpAmp
93Power Supply with Positive Adjustable Regulator LT317A
92High Speed Inverting Amplifier with LT318A
91Inverting Precision Amplifier using RH37C OpAmp
90BJT based Astable Multivibrator
89An Audio Amplifier using BJTs
88Four Band Gap Voltage Reference Circuits
87Passive Butterworth Filter Design
86Clapp Oscillator Design
85CMOS Differential Amplifier Analysis
84CMOS Inverter Analysis
83Robust Design of a Cohn Filter Circuit
82Colpitts Oscillator using JFET without diode
81Colpitts Oscillator using JFET without diode
80Output Characteristics of BJT
79DC Operating Point Analysis of an OpAmp
78Solid State Differential Operational Amplifier Design
77To design a Dimmer using TRIAC and DIAC
76Old Fashioned Electrometer Using Parametric up Conversion
75Capacitance measuring device(Capometer) Design and implementation
74Implementation of General Feedback Theorem
73Time domain response of a 3db/octive rolloff
72Design of a Hartley Oscillator using JFET
71The Howland Current Pump Circuit Implementation
70Implementation of an Ideal Transformer
69IGBT Characteristics Plot
68ISO 16750-2 Standard Transients Simulation
67ISO 7637-2 Standard Transients Simulation
66The Public Address system used in the 2015 World Circuit Seminar
65LM308 Operational Amplifier Design and Implementation using BJTs
64LM741 Operational Amplifier Design and Implementation using BJTs
63LM78XX Linear Voltage Regulator Design and Implementation using BJTs
62Logarithmic Amplifier using OpAmp and BJTs
61An illustration to Measure the Loop Gain in Feedback Systems
60An illustration for Small-Signal Stability
59Voltage Controlled Oscillator Amplifier MC1648 Design and Implementation using BJTs
58An illustrate circuit to measure Bandwidth of Voltage Divider CE Amplifier
57Example of a Monte Carlo Simulation
56NE555 Timer Design using BJTs
55Output Resistance Analysis of NMOS
54Analysis of Long Channel NMOS
53Analysis of Short Channel NMOS
52Noise Analysis of an Operational Amplifier
51Noise Figure of Voltage Divider CE Amplifier
50Non Linear Transformer Modelling and Simulation
49Passive Notch Filter Design
48Adjustable Voltage Power Supply with OP1117
47Low Noise Inverting Amplifier with OP113
46Micro Power Inverting Amplifier with OP191
45Low Noise Inverting Amplifier with OP213
44Low Offset Inverting Amplifier with OP227
43Precision Inverting Amplifier with OP27
42Precision Voltage Doubler with OP284
41Micropower Amplifier with OP296
40Precision High-Speed Inverting Amplifier with OP37
39Low noise Amplifier with OP413
38Micropower Voltage doubler with OP491
37Low power Inverting Amplifier with OP492
36Micropower Single-Supply Voltage Doubler with OP291
35Inverting Amplifier with OP292
34Three Amp State Variable Filter
33Orchard and Sheahan LC bandpass filter From Horowitz and Hill, The Art of Electronics
32High Pass Phase Shift Oscillator design
31Low Pass Phase Shift Oscillator design
30A Phono Circuit using Opamp
29A Pierce Oscillator Dedign using JFET
28Phase Locked Loop Design with Baudrate=500
27Phase Locked Loop Design with Baudrate=250
26Output Resistance Analysis of PMOS
25Analysis of Long Channel PMOS
24Analysis of Short Channel PMOS
23Relaxation Oscillator design suing OpAmp
22LT1184 Contrast Switching Regulators Application Circuit
215 ways of specifying source and termination impedances for S-parameter computation.
20Sample and Hold Implementation
19Positive High Voltage Hot Swap Controller Application Circuit
18The use of dQ/dt damping parameter Vp to control diode soft recovery
17Filter analysis using the Step Parameter option
16BJT analysis using the Step Model Parameter option
15Differential Amplifier Noise analysis using the Step Parameter option
14Operational Amplifier Temperature analysis using the Step Parameter option
13A transformer design with two windings, 1 to 3 turns winding ratio
12A transformer design with three windings(center tapped)
11Transmission line inverter simulation
10Second Order RC Filter design
9Ultra High-Frequency Pre-Amplifier Design
8Universal Operational Amplifier Design
7Varactor Transmission Circuit
6Varactor Transmission Circuit with Inductor Feedback
5Varistor Modelling and Implementation
4A Virtual Switch Modelling and Implementation
3Reading a wave from a file
2Saving 3 synchronized wave to a file
1Wein Bridge Oscillator using OpAmp