LED driver efficiency vs efficiency of converter

[fifahaywire]

i'm making an LED driver starting from the mains 240Vac (fullbridge) then to a converter and then to the LEDs.
i'm having trouble of differentiating between the LED driver efficiency and the converter efficiency.
can anyone help me?

 

[Sceadwian]

You'd have to input the schematic and components into a simulator, or otherwise empirically measure from your created circuit where power is being used.

 

[ronsimpson]

i'm having trouble of differentiating between the LED driver efficiency and the converter efficiency.
can anyone help me?

Many people use the words 'driver' and 'converter' interchangeable.
I assume you want to get from 240AC to LED current efficiently.

Here is a application note for a 10 watt LED from 240vac.

 

[fifahaywire]

You'd have to input the schematic and components into a simulator, or otherwise empirically measure from your created circuit where power is being used.

i tried measuring it empirically. i wanted to try it in simulation as well as using the hardware. it's just that i was confused on how.

Many people use the words 'driver' and 'converter' interchangeable.
I assume you want to get from 240AC to LED current efficiently.

Here is a application note for a 10 watt LED from 240vac.

thank you!! i shall use this one as a guideline for my project

 

[ronsimpson]

What wattage do you want?

 

[fifahaywire]

What wattage do you want?

i guess about 6W.
5LEDs x 3.5V x 350mA= 6.125W

why?

 

[ronsimpson]

Here is a smaller version. 7 watts non isolated