I have this circuit to light 2 auto directional bulbs from a logic level input. Unfortunately, it won't work on my motorcycle because I must switch the positive side because the bulbs have one side tied to ground. I need to have an equivalent circuit to pull the bulb up to 12v and I don't know how to do that. Can someone help me do that?

 

Use a P-MOSFET high-side driver (below):
(Note the connections to the source and drain).

 

Use a P-MOSFET high-side driver (below):
(Note the connections to the source and drain).

View attachment 324129

Thank you very much!!

 

Another option .............
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