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pyr0ball / pyr0piezo

An AVR/ARM based piezoelectric sensor for use in ultra-precise applications
https://docs.pyroballpcbs.com/
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Add overvoltage / reverse voltage protection #12

Closed pyr0ball closed 5 years ago

pyr0ball commented 5 years ago

Currently there is a reverse voltage protection diode onboard, but more in-depth analysis will be needed to ensure all voltage entry points are covered.

Currently there is a 0ohm resistor in place of a fuse, but to complete the overvoltage protection, a zener diode is required. Example

A quick rough search turned up this as an optional component

pyr0ball commented 5 years ago

Fixed standalone board in https://github.com/pyr0ball/pyr0piezo/commit/79da9c6468af9ee90bc09aca5c1727b394169f21

pyr0ball commented 5 years ago

Accidental closing of wrong issue

pyr0ball commented 5 years ago

Fixed in https://github.com/pyr0ball/pyr0piezo/commit/79da9c6468af9ee90bc09aca5c1727b394169f21 and https://github.com/pyr0ball/pyr0piezo/commit/070bef876b96773af2c13c0505ce141b0b537d15