Protecting USB host port

- M
- metiu
  
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posted
15 years ago

Mon, Dec 1, 2008 11:42 AM

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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- C
- CBFalconer
  
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Vote on answer
posted
15 years ago

Mon, Dec 1, 2008 10:18 PM

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

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- A
- Anton Erasmus
  
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posted
15 years ago

Tue, Dec 2, 2008 6:31 PM

You can perhaps galvanicaly isolate the USB Interface. Look at

formatting link

for suitable isolators.

Regards Anton Erasmus

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