trying to find the perfect dc dc voltage current regulator

Dec 01, 2012 4 Replies
F

oved onto a new boat. I have incandecent light and would like to modify to LED. Havent been on the web in years and still having a difficult time with searches. I came across the LT1618. Seemed good both current and voltage regulation. Looked up individual white light LEDs 3 watt and 5 watt. 5 watt LEDs voltage 3.8 volt. Two in series will drop 7.6 volt. 800mA each =



1600mA. Another set of LEDs put together in parallel. Add in the pwm ability and the perfect boat lights. and to try to make each light for under $15 is this possible? Thank you Wiley
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LED. Havent been on the web in years and still having a difficult time with searches.

Looked up individual white light LEDs 3 watt and 5 watt.

1600mA.
Two 3.8V LED lamps rated at 800 mA will, in series, drop 7.6 volts with a total current of 800 mA from the source. Two 3.8V LED lamps rated at 800 mA will, in parallel, drop 3.8 volts and draw 1600mA from the source.
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LED. Havent been on the web in years and still having a difficult time with searches.

Looked up individual white light LEDs 3 watt and 5 watt.

1600mA. Another set of LEDs put together in parallel.

Thanks for the correction. last time I used maxim ics and only 20 mA LEDs about 5 years ago. Forced retirement tumor on my spine. Now I have time play just not as much money to play with. Thank you Wiley

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LED. Havent been on the web in years and still having a difficult time with searches.

Looked up individual white light LEDs 3 watt and 5 watt.

1600mA. Another set of LEDs put together in parallel.

Thank you David. The already assembled package will be far easyer than the discrete IC + parts + board. Wiley

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