In the design and manufacturing process of electronic devices, if a design is encountered where the circuit board ground is directly connected to the chassis ground, will this design cause problems? This article will explore this issue, hoping to provide assistance to our readers.
1. Electrical Safety Issues
The direct connection may lead to a risk of short circuits, especially in humid or dusty environments.
If the chassis is not insulated, it may cause electric shock accidents when users come into contact with it.
2. Signal Interference Issues
The potential difference between the circuit board and the chassis ground may lead to signal interference, affecting device performance.
Especially for high-frequency circuits, poor grounding can exacerbate electromagnetic interference.
3. Risk of Equipment Damage
Improper grounding methods may lead to excessive current, damaging components on the circuit board.
Prolonged operation may cause overheating, accelerating device aging.
4. Compliance Issues
Some countries or regions have strict electrical safety standards that specify grounding methods.
A direct connection may not comply with these standards, resulting in the product failing to pass certification.
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