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Passenger Car Constant Current LED light strip driver

author: rrdoc
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2 layer board of 1.10 x 0.55 inches (28.0 x 14.0 mm)
Uploaded: September 4th 2022
Shared: September 24th 2022
Total Price: $3.00

This constant current module will take 10-18VAC (eg. model train track power) and output DC to drive 12V LED strips. Flicker-free operation and DCS signal protection. Brightness is controlled by R1 (recommend 27-47 Ohms, minimum 22). Circuit design by John Will, board layout by Rod Stewart.

BOM: || HDR-1x2 jst-eh series 2-pin header || C1 470uf ECA-1VM471 Panasonic CAPPR-5/10.5h14 || D1 1A 400V DB107-G Comchip DB-DIP || L1 22uh 78F220J-RC Bourns IND_400 || R1 22 to 100 Ohm 1/4W metal film resistor (pick value for brightness level) || U1 LM317TG ON Semiconductor TO-220

This constant current module will take 10-18VAC (eg. model train track power) and output DC to drive 12V LED strips. Flicker-free operation and DCS signal protection. Brightness is controlled by R1 (recommend 27-47 Ohms, minimum 22). Circuit design by John Will, board layout by Rod Stewart.

BOM: || HDR-1x2 jst-eh series 2-pin header || C1 470uf ECA-1VM471 Panasonic CAPPR-5/10.5h14 || D1 1A 400V DB107-G Comchip DB-DIP || L1 22uh 78F220J-RC Bourns IND_400 || R1 22 to 100 Ohm 1/4W metal film resistor (pick value for brightness level) || U1 LM317TG ON Semiconductor TO-220

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      Hey there! Before ordering, make sure you have all the info you need to complete and use this design. This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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