Best DIY Ideas website. Search anything about DIY Ideas in this website.
Diy Bench Power Supply Current Limit. And has the added feature that you can limit the maximum output current. Download this article in.pdf format.
I'd advise adding an adjustable current limit to any bench top power supply over an amp or so. Try connecting an standard 5mm led to a power supply with a current limit of 100ma and see how long it takes before it burns out. I have had this circuit in use now for over 20 years and has never let me down and is one of the most.
The minimum current limit of the bench power supply is 0a.
Through simple circuit modifications, designers can use peak current limiting to produce a constant current source. If you want to skip right to point, our pick for the best benchtop power supply in 2019 is the korad kd3005d 30v 5a lab grade supply. A small 100ω resistor is placed in series with the ilimit potentiometer to maximize the turning range and still guarantee zero current when two regulators are used in parallel. A beefy power supply with all the standard output voltages, which is what the pc power supply is, is an excellent bench supply for hobbyists and budding engineers.