rprodrigues
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Hello,
I have been developing a remote data acquisition system composed by one data acquisition and operation circuit which reads values from 4-20mA sensors and sensors with digital pulse outputs, one circuit to received solar energy and recharges a 12 V battery, and a circuit to do the 12v -> 24 v conversion (to supply the 4-20 mA sensors). A battery supplies the power to all the circuits and sensors.
Besides the EMC protection, what others kinds of protection should I implement in each circuit I have?
- ESD?
- Power input protection for overvoltages ? Using TVS?
- Power input protection for reverse polarity ? Using diodes in parallel ?
- Current-limiting circuit for each 4-20mA sensor present?
- What about an earth connection? Should I connect it to the battery GND?
Is there any book that treat these issues above?
Thank you,
rprodrigues
I have been developing a remote data acquisition system composed by one data acquisition and operation circuit which reads values from 4-20mA sensors and sensors with digital pulse outputs, one circuit to received solar energy and recharges a 12 V battery, and a circuit to do the 12v -> 24 v conversion (to supply the 4-20 mA sensors). A battery supplies the power to all the circuits and sensors.
Besides the EMC protection, what others kinds of protection should I implement in each circuit I have?
- ESD?
- Power input protection for overvoltages ? Using TVS?
- Power input protection for reverse polarity ? Using diodes in parallel ?
- Current-limiting circuit for each 4-20mA sensor present?
- What about an earth connection? Should I connect it to the battery GND?
Is there any book that treat these issues above?
Thank you,
rprodrigues