zeox
New Member
Hello guys,
I have in my posession some 3W LED's that are designed to work on mains voltage (230V) in series with a resistor (1 resistor per 1 LED).
I've done a few test boards with them and they light up very well, but they have some noticeable flicker.
Another problem is, that one LED paired with a 1,6 kOhm resistor will be 2.8W at 220V but will be just 2.1W at 210V (just an example, there are different resistor values for different voltages and desired power outputs). And where I am using these LEDs, the voltage is very unstable, sometimes goes as low as 190V, and then the LEDs work at only ¬1.2W
I think that by adding a bridge rectifier, that would greatly reduce the flicker, and will increase the voltage way over 230V.
And I need a way to limit the voltage after the rectifier to steady 220V (or 210V doesn't matter as long as it is stable, I can use the correct resistor ratings to get the desired output).
What would be the best way to limit the Voltage after the bridge rectifier?
I have in my posession some 3W LED's that are designed to work on mains voltage (230V) in series with a resistor (1 resistor per 1 LED).
I've done a few test boards with them and they light up very well, but they have some noticeable flicker.
Another problem is, that one LED paired with a 1,6 kOhm resistor will be 2.8W at 220V but will be just 2.1W at 210V (just an example, there are different resistor values for different voltages and desired power outputs). And where I am using these LEDs, the voltage is very unstable, sometimes goes as low as 190V, and then the LEDs work at only ¬1.2W
I think that by adding a bridge rectifier, that would greatly reduce the flicker, and will increase the voltage way over 230V.
And I need a way to limit the voltage after the rectifier to steady 220V (or 210V doesn't matter as long as it is stable, I can use the correct resistor ratings to get the desired output).
What would be the best way to limit the Voltage after the bridge rectifier?