What is this device and what does it do?

lemon0809

What is this device and what does it do? [Copy link]

qwqwqw2088

The circuit board provided has little information.
The initial judgment is that it should be copper strips welded to increase the current capacity, because it looks like it is welded together with copper foil.

led2015

Two points are on the front, connected to one point, bold, it feels like a large current is flowing

okhxyyo

It feels like a design that uses high current.

well_kim

Power sampling resistor

LuJianchang

well_kim published on 2020-5-14 08:42 Power sampling resistor

Is the sampling resistor connected like this?

maychang

well_kim published on 2020-5-14 08:42 Power sampling resistor

It is impossible for the two ends of a power sampling resistor to be welded on the same copper foil. If the manganese copper wire is welded on two copper foils, it may be a power sampling resistor.

fdingy

It's probably to increase the current.