ElectroStatic Discharge Protection

Thread Starter

Grizzly09

Joined Oct 24, 2017
11
Hi everyone
I surfed through web for few days but i haven't found solution for ESD protection for Robot.
I have robot controlled by STM32F103 Discovery.
Our school is static-active and sometimes my controller reset's or goes wild.
It's very hard test robot in this kind of sititution.
Any kind of advice will be appreciated :)
 
Hi Grizzly09
if possible try to do as:
1.try to connect the MCU's ground plane with the robot body that makes from conductor material
2. try to add TVS between MCU ports and GND to reduce peak of the ESD
3. Covered your MCU by conductor/metal material and connect to GND
 
Last edited:

MisterBill2

Joined Jan 23, 2018
9,036
Hi everyone
I surfed through web for few days but i haven't found solution for ESD protection for Robot.
I have robot controlled by STM32F103 Discovery.
Our school is static-active and sometimes my controller reset's or goes wild.
It's very hard test robot in this kind of sititution.
Any kind of advice will be appreciated :)
An additional suggestion is to add small value capacitors to the circuit common ground from each digital input connection. That is a common method of reducing the problem and it works most of the time. In addition, using twisted pair conductors, with one conductor to the input common is another proven way to reduce sensitivity to noise including ESD. Twisted pair wire like in "cat5" cable is very good for this purpose.
 
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