- #1
cjm181
- 69
- 1
Homework Statement
i am working through this question, the final bit i am struggling with, describing what each bit of the circuit does. tying to understand what is going on. Looking at fig 1b
I have identified a bridge rectifier, and the zener diode. I am reading up on these so i am not looking for help with these at the mo! What i can't seem to sus is what the two resistors are doing in the ac supply before the bridge rectifier. And also what is the resistor after the rectifier, the vertical one? The coupling is an optoisolator. Can anyone help me or point me to some further reading please?
Homework Equations
The Attempt at a Solution
Are the two resistors to limit the current going into the rectifer?
Thanks