What are the advantages of open-loop non-isolated flyback white LED drivers?

* Question

* Answer

(1) The white LED current can be adjusted without an external control loop.

(2) Non-continuous inductor current transmission reduces EMI emissions.

(3) Lower switch conduction loss.

(4) Simple circuit design flow.

(5) The terminal voltage of the white LED can be higher or lower than the input voltage.

(6) Wide input voltage range.