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A mosfet, a dif comparator, a bridge rectifier, and an inductor walk into a bar.
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Beamin:
A mosfet, a diff. comparator, a bridge rectifier, and an inductor walk into a bar where they talk to a BC557 and a BC547 a big cap and some resistors.
What would you call this thing? I don't remember building it. My guess from the fact it has 4 leads two are "AC" and one is cat. and an. that it's a regulator or tiny power supply.
Will it mess it up if I put DC to it? How would I know how much voltage it takes? It has no part numbers on the board. Certainly it can't take mains power could it? Why else would you have A/C inputs unless it's supposed to work with a transformer.
What does the comparator do? I haven't seen that in a power supply. Is it so it can adjust a range of voltages and still stay at the output? To find voltage do you look at how much this IC can handle then trace out resistor that goes to it?
pyroesp:
It's a 1W/3W power LED driver.
It's a Velleman kit, 2 sec google search : https://www.velleman.eu/downloads/0/illustrated/illustrated_assembly_manual_k8071_rev1.pdf
Beamin:
--- Quote from: pyroesp on July 23, 2018, 08:51:43 am ---It's a 1W/3W power LED driver.
It's a Velleman kit, 2 sec google search : https://www.velleman.eu/downloads/0/illustrated/illustrated_assembly_manual_k8071_rev1.pdf
--- End quote ---
I looked at their kits and didn't see this one. But I suck at seeing though.
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