Plan: Convert existing outdoor lamps from standard bulbs to LEDs.
Found a stack toroidal transformers, so im gonna use those for my xmas-project (since people dont like 230V ). Output is 15V@15VA and 15V/2VA.
Using a full wave bridge rectifier, the DC voltage will be in the area of 20V. I plan to use a capacitor to limit the steady state current, as well as a resistor to limit the turn-on surge.
Here goes:
Im not sure wether or not the capacitor is good enough to current limit in this setup - help? The above circuit should provide ~10mA half-wave, before entering the bridge rectifier. Only downside i see, is that the 200 Ohm resistor eats about 0.3W.
Suggestions are welcome.
Found a stack toroidal transformers, so im gonna use those for my xmas-project (since people dont like 230V ). Output is 15V@15VA and 15V/2VA.
Using a full wave bridge rectifier, the DC voltage will be in the area of 20V. I plan to use a capacitor to limit the steady state current, as well as a resistor to limit the turn-on surge.
Here goes:
Im not sure wether or not the capacitor is good enough to current limit in this setup - help? The above circuit should provide ~10mA half-wave, before entering the bridge rectifier. Only downside i see, is that the 200 Ohm resistor eats about 0.3W.
Suggestions are welcome.
Last edited: