USB-Tester.png

USB Tester

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Operation

Load resistors are 5 ohm One is always in-line and the second is added in parellel by the switch.

E=IR Switch off - 5 Volt = 1.0 Amp x 5.0 Ohm Switch on - 5 Volt = 2.0 Amp x 2.5 Ohm

The Red Led is on when current is flowing.


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Glenn Lyons VK4PK
glenn@LyonsComputer.com.au
Ver:gnl2020mmdd - pre published v0.9