If you design a carrier board for a vehicle and connect it directly to the 12 V battery, do you need a buck-boost converter to power the Thor module, or can it be connected directly to the battery?
I understand that input protection would be required, but can the 7–20 V input range handle the voltage dips that occur during engine cranking, when the battery voltage may momentarily drop to around 9–11 V?
Or does the module require a stable input voltage to operate reliably?
The DRIVE AGX Thor Developer Kit has different input power requirements than the 7-20V input voltage range for the Jetson Thor module. The DRIVE Dev Kit’s documentation is provided under NDA so I cannot get into further detail on this forum.
For a setup in a vehicle, there would typically be a pre-regulator to:
Handle the crank and load dump (overshoot) transients from a car battery
Provide a stable voltage to the Jetson Thor carrier board
There would also be considerations for things like reverse polarity protection, EMI, overcurrent protection (OCP), undervoltage protection (UVP) and overvoltage protection (OVP).