Hello, I am looking to convert an electronic scoreboard from my table hockey into a four sided scoreboard, which means I have to add 6 additional 7-segment LEDs (2 for each of the other three required sides). I figured out to 'tap' into the data signals and split them across these other 6 LEDs, but the current from my adapter appears not to handle the required amount to illuminate all LEDs to a bright enough level for good viewing. Rather than change the original adapter (6 Vdc /200mA) and possibly affect the circuit board of the scoreboard, I was wondering how difficult would it be to add a secondary circuit with its own adapter that was specifically designed to provide enough current to power all the LEDs, while the original adapter powers the circuit board. Reason being I don't want the circuit board to draw too much current through its microprocessor or other components, and burn out while trying to power these additional LEDs.
My thoughts were to use transistors connected to each of the primary circuit's data lines that act as switches into the secondary circuit, allowing amplification of the current through the LEDs in the secondary circuit, and therefore not overload the primary circuitry in any way.
Any help would be appreciated
My thoughts were to use transistors connected to each of the primary circuit's data lines that act as switches into the secondary circuit, allowing amplification of the current through the LEDs in the secondary circuit, and therefore not overload the primary circuitry in any way.
Any help would be appreciated