This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

uc3825an

hello every body:

I use uc3825an to use pwm, I wire the circuit base on datasheet, I work open loop.

I cant change duty cycle, I wire pot 10k and two 27k resistor to input 2, but I don't see that duty cycle change.

way, what voltage range must be in input 2 and 1?

pleas help?