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Thread: PSU for Prusa i3
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09-11-2015, 01:37 PM #7
Yes. But a better way to look at it is this: Because it is a switching power supply, it turns its output transistors all the way on. Then all the way off. It feeds this into a capacitor to smooth out the power. This is efficient because it isn't dropping a lot of voltage across the output transistors. But... One of the rubs is you need to have some amount of a load on it. Without the load, it can't regulate the output voltage. And if it can't detect a load, it shuts down.
Maybe that isn't quite true. But that is close to the truth and one of the electrical engineer types can jump in and correct this thought.
Qidi X Plus 3 Paper thin first...
05-27-2024, 01:15 AM in General 3D Printing Discussion