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LED driver/blanking boards

LED blanking circuits were inspired by earlier devices designed and built by R. Berndt (HIH Tübingen).

lcr_add-on - KiCad and Gerber files for the "logic board". This board combines the signals from the LCr with an external "blanking signal" to independently control up to three 3 LEDs per lightcrafter device. This board has a jumper option to disable the blanking signal altogether, which may be useful when e.g. using LCrs in MEA setups.

mosfet_circuit - KiCad and Gerber files for "LED driver board". This board uses the 5V logic signal from Lcr_addon ("logic board") to turn LEDs on and off. Users need to connect this board to an appropriate power suply (i.e. a power supply the is outputing the LED forward voltage).

mosfet_circuit_plus_voltage_regulator - KiCad and Gerber files for "LED driver board". This board uses the 5V logic signal from Lcr_addon ("logic board") to turn LEDs on and off. This board has a stepdown voltage regulator built-in. It is capable of 20V and 1.5A max output with the components present in its "1-click-bom.csv" file. (see "Components to populate the boards" for more details).

ssr_board - This board controls the LED power lines from the Lightcrafter by opening and closing them using solid state relays. The relays are controlled by a 5V signal (in this case the inverted blanking signal).

General information about the printed circuit boards:

  • For details on the design and function of the boards, see preprint).

  • The boards were designed using KiCad 5 and can be ordered using the Gerber.zip file located in each board's gerber subfolder.

  • Several "board on demand" companies are available, and the process of ordering is pretty much the same. A more detailed tutorial on how to do so can be found here (for simply using the already available compressed files, go to minute 7 of the video).

  • Companies providing "board on demand" service include:

Components to populate the boards:

Components are listed on each board folder on a "comma separated value" file named 1-click-bom.csv. Listed in the file are the quantity, identification and supplier of each component. They can also be ordered using KitSpace: