Pcb Overview And Hardware Design; Hardware Design Highlight - FIFOTRACK A100 User Manual

A100 USER GUIDE

5 PCB Overview and Hardware Design

5.1 Hardware Design Highlight

Protection for sudden-change of auto power supply: When the vehicle starts or is running, the
power voltage will have a wave of change. Our product supports voltage 11V-36V. When the
external power supply is below 10.5V, with low voltage detection, it will be automatically cut. When
external power supply is over 36V or has high voltage peak, the product will trigger high-voltage
protection through clamping, anti-pulse, and high voltage detection. This ensures the product to
operate normally under high voltage.
Auto power transient pulse: When the vehicle starts or is running, it will generate high-voltage
transient pulse with a range of hundreds of volts. If the product's circuit is not well designed, it is
very easy to get damaged, and can't be used. Through multistage transient pulse protection and
anti high-voltage surge protection, the product's power circuit is well protected, and it can operate
stably.
Electromagnetic immunity: When the vehicle starts, the clock, RF, display screen and USB are very
easy to be interfered by electric spark, which causes the product to operate unstably. Through PCB
layout and ground wire handling, the product can work stably under interfered environment.
Anti static: The vehicle product's working condition is complex. It is very easy to be influenced by
static, which causes damage to the product's peripheral interfaces. Through ESD protection on
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