plumber Posted September 23, 2009 Report Share Posted September 23, 2009 Is there a novel/simple way to manually control amperage, while somewhat maintaining voltage ? My project is powered by a 30 vdc wallrat. The mA's will be slowly increasing over the span of several hours...I am trying to determine an effect...before I run out and buy a regulated, variable power supply. Building my own current limiting circuitry seems a bit much for this old plumber. If I have to build my own circuitry, is there anyplace or person that can spell it out for me? You know, specifically. exactly which resistors/components and their values. I could probably struggle through a schematic if I could just buy a bag of the proper parts and a bread board. But to calculate the components, their values and their order in the circuit...cant I just turn a few knobs for crying out loud? This is just an experiment! I simply need an average of 30 volts dc, and I need to keep the millivolts between 2 and 6 at all times. If the current had to be constant, that would be 4mA. Without control, they could climb to 400 -600 mA during the experiment. See? I know the parameters...but what do I really need? Is there a temporary, simple way?Humbled plumber needs help Quote Link to comment Share on other sites More sharing options...
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