Hello,
If an offline 160W SMPS provides an output voltage rail that is used as an input voltage rail for a switch mode buck led driver, then could this cause instability , due to an interaction between the feedback loops of each smps converter?
To solve this instability, do we have to ensure that the feedback loop bandwidth of the upstream smps must be at least three times greater than that of the downstream smps?
If an offline 160W SMPS provides an output voltage rail that is used as an input voltage rail for a switch mode buck led driver, then could this cause instability , due to an interaction between the feedback loops of each smps converter?
To solve this instability, do we have to ensure that the feedback loop bandwidth of the upstream smps must be at least three times greater than that of the downstream smps?