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Surge protection for electronic products

It is estimated that 75% of failures in electronic products are caused by transients and surges. Voltage transients and surges are everywhere. Power grids, lightning strikes, blasting, and even people walking on carpets will generate tens of thousands of volts of electrostatically induced voltage. These are the invisible deadly killers of electronic products.

Therefore, in order to improve the reliability of electronic products and the safety of the human body, it is necessary to take protective measures against voltage transients and surges.

There are many reasons for a surge. A surge is a spike with a high rate of rise and a short duration.

Power grid overvoltage, switch ignition, reverse source, static electricity, motor/power noise, etc. are all factors that generate surges. The surge protector provides a simple, economical and reliable protection method for the power surge protection of electronic equipment.

As we all know, electronic products often encounter unexpected voltage transients and surges during use, resulting in damage to electronic products. The damage is caused by semiconductor devices in electronic products (including diodes, transistors, thyristors and integrated circuits, etc. ) is burned out or broken down.

One of the methods is to ground the whole machine and the system. The ground (common end) of the whole machine and the system should be separated from the earth. The whole machine and each subsystem in the system should have an independent common end. When transmitting data or signals, the ground should be used as the reference level, and the ground wire (surface) must be able to flow a large current, such as several hundred amperes.

The second protection method is to use voltage transient and surge protection devices in the whole machine and key parts of the system (such as computer monitors, etc.), so that voltage transients and surges are bypassed to the subsystem ground and the subsystem through the protection devices. ground, so that the transient voltage and surge amplitude entering the whole machine and system are greatly reduced.

The third protection method is to use a combination of several voltage transient and surge protection devices for important and expensive complete machines and systems to form a multi-level protection circuit.

The surge protector provides a simple, economical and reliable protection method for the power surge protection of electronic equipment. Through the anti-surge component (MOV), the surge energy can be quickly introduced into the lightning induction and operating overvoltage. Earth, protecting equipment from damage.

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