| Electronics > Beginners |
| A mosfet, a dif comparator, a bridge rectifier, and an inductor walk into a bar. |
| (1/1) |
| 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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