NERD ALERT Pure Electronics Question
I want to use 78xx voltage regulators in my 36 volt lighting. To power integral with heatsink 1 watt fans. Clarification: I purchased new surplus PC obsolete heatsinks with ball bearing fans for less ...
Forum Discussion
Matt's right, but you don't need even that much. For less than a buck, about the same price as an LM7812, you can get a complete stepdown switching regulator from China/ebay, and everything is taken care of for you. At 100 mA, no need for a heatsink. And, much much more efficient than using a linear regulator.
