Protecting USB host port

Dec 01, 2008 2 Replies

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metiu 17 years ago

Hi, I'm looking for a solution to protect a USB host port in an automotive environment, which means

- from short circuits between any pin and GND, which is easy

- from short circuits between any pin and Vcc (16V) which is giving us trouble

Any advice?

Thanks

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CBFalconer 17 years ago

Try a series resistor and clamping diodes to Vcc. This will probably seriously reduce circuit speed.

[mail]: Chuck F (cbfalconer at maineline dot net) [page]: Try the download section.

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Anton Erasmus 17 years ago

You can perhaps galvanicaly isolate the USB Interface. Look at

formatting link

for suitable isolators.

Regards Anton Erasmus

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