Hi all,
I am designing a Taxi meter for an Indian made three wheeler. That is 2 stroke 150cc Gasoline engine powered one.
Taxi meter worked fine when I test it form bench power supply. But in early testing time it’s going mad when the engine starts.
For minimizing EMI effects I did following modifications and preventive measures.
Decoupling caps to power line of PIC .1uF
Shielding the circuit using aluminum casing
Using toroid filter to power and metering pulse lines
Using shielded cable to metering pulse line
Used copper pour in PCB
Problem solved to sertent extent .But still occasionally its resetting.
I checked other possibilities of resting like power or errors in code. But still I suspect due to EMI interference it happens
Are there any more things to minimize EMI?
I am designing a Taxi meter for an Indian made three wheeler. That is 2 stroke 150cc Gasoline engine powered one.
Taxi meter worked fine when I test it form bench power supply. But in early testing time it’s going mad when the engine starts.
For minimizing EMI effects I did following modifications and preventive measures.
Decoupling caps to power line of PIC .1uF
Shielding the circuit using aluminum casing
Using toroid filter to power and metering pulse lines
Using shielded cable to metering pulse line
Used copper pour in PCB
Problem solved to sertent extent .But still occasionally its resetting.
I checked other possibilities of resting like power or errors in code. But still I suspect due to EMI interference it happens
Are there any more things to minimize EMI?