石榴姐

Distinguished USB cement resistor dummy load

Overview

Two noble 20W5R cement resistors are used.

Can be used as an ordinary 1/2A dummy load.

It can also be used to test the internal resistance of data lines.

The principle is that the data line output +- is short-circuited. Then use D-D+ to measure the +- voltage of the data line input respectively. A cement resistor is connected in series between the data line + and the power input.

Design Files

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Update:2025-06-20 20:38:09

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