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Hi,<BR>
<BR>
I tried to build the saw tooth wave generator in accordance with your design. I need one with +/-30-36 V output so I used two OPA452 opamps and bipolar power supply +/-36 V. I am not an expert in this area, so for the beginning I used all other components the same as in your circuit. As a result the circuit doesn't work.... Actually I expected that but I do not know what to correct. The main problem is that I have -36 V at OUT1 modulated with saw tooth about 1.5 V and about 7 ms period! What is wrong? I checked my assembly for shorts and opening - everything looks fine. I also put two opposite diodes between first opamp inputs - no results, all the same...<BR>
<BR>
Any your comments are strongly appreciated.<BR>
<BR>
Thank you and best regards,<BR>
<BR>
Vladimir</BLOCKQUOTE>
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