I have made level shifter triangular waveform generator circuit in proteus.
it's OK when I simulate it on proteus, but when i realize it, the level shifter by giving dc offset towards non inverting input of Op- Amp TL084 doesn't work.
I haven't analyzed your circuit, but here are a couple of observations regarding zeners:
1. Put them in series instead of in parallel. The breakdown voltage will be increased by about 0.7V.
2. Zeners need current through them (a few milliamps) to achieve their rated voltage. you have nothing that will allow current to flow through them (except for D5 and D7)
thanks for your reply, i use zener diode in order to make the output voltage became stable. you can check it from comparison when i use p-n diode and zener diode View attachment 64256View attachment 64257
thanks for your reply, i use zener diode in order to make the output voltage became stable. you can check it from comparison when i use p-n diode and zener diode View attachment 64256View attachment 64257