I have an issue with 12 volt DC LEDs installed on a 5 volt DC circuit. Switching must be performed as close to instantaneous as possible.
So I searched around but nothing would do what I need. I found npn transistor and MOSFET switches for 12 v using a 5 v base\gate but these solutions modified the ground from the LED instead of the +12 circuit. My problem is I do not have access to the ground side. I must modify the 12 vdc circuit in order to achieve my goal. Am I limited to Solid State Relays or can this be achieved another way?
Hopefully this makes enough sense for someone to help me.
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