Led Lighting Technology Questions And Answers

Writer：Jane Time：2021-06-30 Browse：197

Q: AC-DC conversion, some of the non-isolated, this circuit in safety regulations are there any problems? Now the structure mode of high-power products are all metal shell and aluminum base circuit board, the shell and the circuit board are closely connected, electrical isolation is only realized on the aluminum base plate, how do experts view this problem?

     A: The first question: in AC-DC power supply, there are two ways of isolation and non-isolation, both of which have no problem in safety regulations. 

Second question: yes, this is the point to be aware of in the current application of non-isolated LED power supply. All LED aluminum substrates can achieve isolation voltage of 4000V.