Externet
Well-Known Member
How does it work ?
If only D1 and D5 were in the capacitive supply, there will be a given luminosity.
Several diodes in series as in the schematic will reduce the current a bit; but there would be more light emission. What would be a total luminosity against power consumption plotting ? In other words, the efficiency of a pair or many pairs.
D1 to D8 = 5000 Lm 20mA white LED
R1 = 1.5K 0.5 W
R2 = 250K 0.25 W
C1 = 0.33uF 250VAC NP
AC = 120V 60Hz
I made several of these for yard illumination and am very happy with them 2 years now, but wondered how does mathematics works with a single counterparalleled pair and with many counterparalleled pairs.
If only D1 and D5 were in the capacitive supply, there will be a given luminosity.
Several diodes in series as in the schematic will reduce the current a bit; but there would be more light emission. What would be a total luminosity against power consumption plotting ? In other words, the efficiency of a pair or many pairs.
D1 to D8 = 5000 Lm 20mA white LED
R1 = 1.5K 0.5 W
R2 = 250K 0.25 W
C1 = 0.33uF 250VAC NP
AC = 120V 60Hz
I made several of these for yard illumination and am very happy with them 2 years now, but wondered how does mathematics works with a single counterparalleled pair and with many counterparalleled pairs.