Category: Hardware
Product Number: MAX1771
I am using the MAX1771 in non-bootstrapped mode to generate high voltage. See the attached picture for reference.
I have a transformer demo board to use as a flyback transformer, charging a 160nF cap.
I am using an isolated amplifier to monitor the cap voltage & provide feedback to the MAX1771.
I am seeing a lot of noise on the feedback line. I have the scope probe connected to the feedback line of the MAX1771. See picture of scope trace for reference.
Maybe I have a ground loop somewhere....?
Any suggestions will be greatly appreciated!