Hello. I have a project to simulate wien bridge oscillator. I have a problem with it. The output decays although everything used in the project is ideal component. Do you have idea why it happens?
Here is the netlist i use.
http://www.ecircuitcenter.com/Circuits/opwien/opwien.htm
the design with diodes work fine but do you know why the above circuit decays.
Thanks for your help in advance.
have nice days.
Here is the netlist i use.
For the project i started from the given circuit inOPWIEN.CIR - OPAMP WIEN-BRIDGE OSCILLATOR
* RC TUNING
R2 4 6 6366
C2 6 3 1NF IC=2V
R1 3 0 6366
C1 3 0 1NF
* NON-INVERTING OPAMP
R10 0 2 10K
R11 2 4 20K
XOP 3 2 4 OPAMP1
*
.model D1N914 D(Is=0.1p Rs=16 CJO=2p Tt=12n Bv=100 Ibv=0.1p)
*
* OPAMP MACRO MODEL, SINGLE-POLE
* connections: non-inverting input
* | inverting input
* | | output
* | | |
.SUBCKT OPAMP1 1 2 6
* INPUT IMPEDANCE
RIN 1 2 100MEG
EGAIN 3 0 1 2 10E10
ROUT 3 6 10
.ENDS
*
* ANALYSIS
.TRAN 0.05US 1000US UIC
*
* VIEW RESULTS
.PRINT TRAN V(4)
.PLOT TRAN V(4)
.PROBE
.END
http://www.ecircuitcenter.com/Circuits/opwien/opwien.htm
the design with diodes work fine but do you know why the above circuit decays.
Thanks for your help in advance.
have nice days.