Recent content by arunks91

Yea that was my doubt as well, but people across many forums say that the circuit seems to work. The circuit is in the link I provided. Although when I rigged it up, the LED just keeps glowing and really doesn't change state at all. Will it work if I make the input an AC signal? And also what...

Homework Statement I have attached the photo of the circuit. My doubt in the circuit is that, I could not exactly figure out what the diodes do. The description says it is used to set the input of the op-amp to 1.6V above v-. But how exactly does it achieve that? Can somebody show it...