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joule thief 01 PUBLICJoule Thief circuit. CL have changed something in the simulator because this used to run with the sim set up as. Now, it does not show the exponential rise of V1 and does not start oscillating unless... by signality  updated July 01, 2014 

opamp DC gotchas PUBLICWHATEVER THE BUG WAS IN CL THAT CAUSED THIS PROBLEM: IT NOW SEEMS TO HAVE BEEN FIXED (140202). Beware convergence errors in CL opamp circuits! by signality  updated February 02, 2014 initialconditions opamp rampedsupplies sigtorial startup tutorial 

lossless_line_03 PUBLICA simple lossless transmission line. In practice many more LC segments (100+) are needed for a realistic simulation. This one has a slightly modified 1st stage of the line. It converges. by signality  updated June 19, 2013 convergence initialconditions losslessline startup transmissionline 

lossless_line_02 PUBLICA simple lossless transmission line. In practice many more LC segments (100+) are needed for a realistic simulation. This version converges. by signality  updated June 19, 2013 convergence initialconditions losslessline startup transmissionline 

lossless_line_01 PUBLICA simple lossless transmission line. In practice many more LC segments (100+) are needed for a realistic simulation. by signality  updated June 19, 2013 convergence initialconditions losslessline startup transmissionline 

Dimfougne VCO fixed PUBLICby signality  updated May 28, 2013 

MOSFET Royerlike oscillator 01 PUBLICV1 (vcc) has exponential ramped startup to kickstart oscillation. XFRMR1 forms a centre tapped inductor However, CL takes a long time to run the simulation. Simulate > Time Domain > Run TimeDomain... by signality  updated March 01, 2013 initialconditions oscillator oscillatorstartup royer startup timestep 

astable flip flop classical 01 PUBLICby signality  updated February 13, 2013 

Ramped and glitched signals and supplies 01 PUBLICWays to ramp up and put glitches in signals and supplies. Simulate > Time Domain > Run TimeDomain Simulation See also: [circuitlab]hsss64[/circuitlab] by signality  updated November 01, 2012 

relaxation osc fixed 01 PUBLICAn opamp based squarewave relaxation oscillator. by signality  updated June 11, 2012 choosingtimestep convergence convergenceproblem opamp relaxationoscillator startup 

Geophone Amplifier PUBLICSinglesupply voltage. Highimpedance differential input referenced to ground. Low impedance differential linedriver output. This circuit would not converge with old JFET model. CircuitLab fixed the... by anubi  updated May 19, 2012 

Trouble2 PUBLICThis is a subset of "Trouble 1". This is the core voltage gain and DC bias feedback which would exhibit convergence difficulty on the old FET model. CircuitLab has fixed the model. This circuit now... by anubi  updated May 18, 2012 amplifier bjt convergence feedback initialconditions jfet levelshift startup 

astable flip flop 02 PUBLICThe classic 2 transistor astable multivibrator with and without antisaturation clamps. by signality  updated April 23, 2012 

davidkengs current source v1 fixed 01 PUBLICby signality  updated April 19, 2012 

Trouble2fixed_01 PUBLICby signality  updated April 18, 2012 

Trouble2fixed_02 PUBLICby signality  updated April 18, 2012 

relaxation osc fixed 02 PUBLICSometimes you have to kick an oscillator out of an initial, metastable state so that it starts reliably at a user defined time in the simulation. This shows a way to do that. by signality  updated April 10, 2012 

relaxation osc fixed 03 PUBLICSometimes you have to kick an oscillator out of an initial, metastable state so that it starts reliably at a user defined time in the simulation. This shows a way to do that. by signality  updated April 10, 2012 
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