Surge protection in trucks
Surge protection in trucks
(OP)
Does anyone know if it is normal to protect electronic circuits in a truck against spikes/overvoltage?
I want to mount a pressure transducer with max. voltage 30V in a truck with 24V battery.
What spikes must you expect to find in the electrical system in a truck (what voltage level)?
How would you normally protect electronics against high voltage in a truck?
Allan
I want to mount a pressure transducer with max. voltage 30V in a truck with 24V battery.
What spikes must you expect to find in the electrical system in a truck (what voltage level)?
How would you normally protect electronics against high voltage in a truck?
Allan





RE: Surge protection in trucks
The zener will limit the surges that you get when the alternator is charging the battery and of course when you are cranking the engine you will get some pretty serious dips and spikes in the suplly as the commutator in the starter does its stuff.
Rugged
RE: Surge protection in trucks
Once recent thread "Voltage Clamp" Thread240-98170 , dealt with the issues on a 12volt system. The same basic issues apply to 24 volt systems.
OEMs must protect from all the various problems that may occur over the life of a vehicle. If you are doing a one-off installation, you might risk less protection. If your transducer will operate at less than 24 volts, then use a regulator ahead of it (i.e. a LM317, or LM317HV) set to a slightly lower voltage.