I am a absolute novice here so excuse my display of ignorance but here goes.
I am trying to drive several multi-digit displays from an existing clock. The clock, of course, doesn't have enough power to drive more than one more display. I've been successful in using an 8 channel source driver (TD62783APG) to trigger a higher current and get 5 displays to work. However, there are two wires that appear to (multi-plex) the display. For example powering pins 1 and 10 light segment J while 2 and 10 light segment F. I've tried NPN transistors to control the connections to pin 1 and 2 but they light all the segments.
Any guidance, links or advice to point me in the right direction would be greatly appreciated. I'm completely out of my element here.
I am trying to drive several multi-digit displays from an existing clock. The clock, of course, doesn't have enough power to drive more than one more display. I've been successful in using an 8 channel source driver (TD62783APG) to trigger a higher current and get 5 displays to work. However, there are two wires that appear to (multi-plex) the display. For example powering pins 1 and 10 light segment J while 2 and 10 light segment F. I've tried NPN transistors to control the connections to pin 1 and 2 but they light all the segments.
Any guidance, links or advice to point me in the right direction would be greatly appreciated. I'm completely out of my element here.
