I'm an electronics novice at best. I have an application completely within 12VDC environment where I have a 12V sensor device that produces an output signal of 200ma when "tripped", upon which I want to power a 12V electric motor than can draw as much as 12A under load while sensor output remains powered. I'm presuming I need to somehow increase the amperage of the signal output from the sensor device in order to complete the power circuit that will draw a much higher amperage than the sensor can deliver without burning out my (expensive) sensor device. Is there a name of some sort of off-the-shelf device that I can purchase for this type of application?