AN3360

Conclusion

Doc ID 018586 Rev 2

13/16

5

Conclusion

The LED power supply demonstration board using the HVLED805 device was presented

and the results show that good performances can be obtained using this new device.

Auxiliary winding is required in the transformer to correctly perform CV/CC regulation, and

the chip is able to power itself directly from the rectified mains. This is particularly useful

during CC regulation, where the flyback voltage generated by the winding drops.

The HVLED805 is able to meet the most restrictive worldwide standards regarding

efficiency. The embedded onboard protections and the 800 V power section considerably

increase the end-product safety and reliability.