How to design the PD Power Bank Board for electrostatic protection?
Publish Time: 2024-10-24
As a portable electronic device component, the PD Power Bank Board is very important for electrostatic protection to ensure its stable performance and service life.
First of all, in terms of component selection, chips and electronic components with electrostatic protection functions can be selected. Many modern integrated circuits have integrated electrostatic protection diodes, which can resist electrostatic discharge to a certain extent. For sensitive components, such as microcontrollers and memory chips, models with high electrostatic protection levels should be preferred.
In the design of circuit board layout, the circuit should be planned reasonably. Keep components susceptible to static electricity as far away from the edges and interfaces as possible to reduce the risk of static electricity intrusion. At the same time, an electrostatic protection ring can be set up to surround the sensitive circuit area to provide additional electrostatic shielding. For example, setting a grounded protection ring near the USB interface can guide the electrostatic current to the ground and avoid damage to the internal circuit.
Grounding design is a key link in electrostatic protection. Ensure that the PD Power Bank Board has a good ground connection so that static electricity can be quickly released. The grounding impedance can be reduced through a large area of grounding layer to improve the efficiency of electrostatic discharge. At the same time, the part connected to the battery should also be well connected to the ground to form a unified electrostatic discharge path.
For external interfaces, such as USB interfaces, electrostatic protection devices, such as transient voltage suppression diodes (TVS), can be added. When electrostatic discharge occurs, TVS can quickly conduct and lead the electrostatic current to the ground to protect the internal circuit from damage.
During the production and assembly process, electrostatic protection measures should also be taken. Workers should wear anti-static wristbands and gloves, use anti-static workbenches and tools to avoid static damage to the circuit board. At the same time, when packaging the mobile power board, anti-static materials can be used to prevent static electricity during transportation and storage.
In short, through reasonable component selection, layout design, grounding treatment, and electrostatic protection measures during the production process, the electrostatic protection ability of the PD Power Bank Board can be effectively improved to ensure its stable and reliable operation.
