hi.. i simulated this wien bridge and its working fine at high frequencies but at lower frequencies output gets clamped to Vcc.. i want it to work at 50 Hz... can u guys suggest how to make it work at 50Hz .!!

 

Your problem is different from the one in the original thread - http://forum.allaboutcircuits.com/showthread.php?t=37357 - so now you have your own.

 

You may find this free but good E-book useful. It has an excellent section about oscillators. Hope you do nout just copy but learn something also
http://focus.ti.com.cn/cn/lit/an/slod006b/slod006b.pdf

 

You may find this free but good E-book useful. It has an excellent section about oscillators. Hope you do nout just copy but learn something also
http://focus.ti.com.cn/cn/lit/an/slod006b/slod006b.pdf

thanks very much men ,just what i look 4