airpanther
Active member
I have been able to use the ULQ2003 (NPN transistor array) to control high voltage outouts with the Teensy 4.1. Works quite well, but the problem is, it makes the outputs common positive voltage instead of commmon ground. This means significant rewiring of my common ground circuits.
Any idea how to get common ground using a transistor array (or something else)? Am i using the wrong array or component altogether? I need to be able to control 30V devices woth the Teensy, which the ULQ does very well. Equivalent PNP arrays seem a lot harder to find, especially in a surface mount package.
I thought about level shifters, but I need the supply voltage to be able to be different for each pin.
Any thoughts are appreciated.
Any idea how to get common ground using a transistor array (or something else)? Am i using the wrong array or component altogether? I need to be able to control 30V devices woth the Teensy, which the ULQ does very well. Equivalent PNP arrays seem a lot harder to find, especially in a surface mount package.
I thought about level shifters, but I need the supply voltage to be able to be different for each pin.
Any thoughts are appreciated.