I have a number of LM2596 buck converters to allow for adjustment of DC voltage from a fixed DC voltage input source.
I was planning on using them to regulate the brightness of some LED lit buildings. The power supply would be a 9V or 12V wall wart.
1) Is this a common use for this DC voltage adjustment device?
2) When used to regulate the voltage (and thus the brightness) of an LED light, where do you suggest the LM2596 be installed? Options would be inside the building, or maybe have have an area panel that has one input DC voltage, and a number of buck converters to feed individual buildings in that area. This way the building light brightness can be easily changed without removing the building to access the converter.
Is there anything else I need to know to use this device?
3) could such a device also be used to regulate the operating speed of some Lionel operating accessories, such as the saw mill? The input voltage affects the speed of operation, and I would like to slow my saw mill down a little bit. (however I think the Lionel accessories run on AC power, not DC)
4) I have an Atlas Turntable, where the speed of the rotation is based on the input voltage. Could a buck converter be used to regulate the turntable speed?
5) are there any other uses for a buck converter on an O-gauge train layout?
thanks for any help or ideas.