How do TVS devices protect circuits from transient overvoltage shocks?
Working principle: TVS diodes use the avalanche breakdown characteristics of the p-n junction under reverse bias. When the voltage is higher than the breakdown voltage of the TVS diode, it enters the on state and directs the current to the ground wire. This limits the transient overvoltage to a safe voltage level and protects sensitive electronic components. In short, TVS diodes can limit transient overvoltages to a safe level in a very short time, providing effective protection for electronic circuits. Its fast response and high energy absorption capacity make it an ideal choice for overvoltage protection.
What other uses do TVS diodes have besides overvoltage protection? Can they be used as an interference suppression element in anti-interference circuits?
In addition to overvoltage protection, TVS (transient voltage suppressor) has many other uses and can be used in anti-interference circuits as an interference suppression element. The following are several major applications and functions of TVS:
- Anti-electrostatic discharge (ESD): Protection TVS diodes can effectively absorb instantaneous high-voltage pulses caused by electrostatic discharge and protect sensitive electronic components from damage. This makes them widely used in computers, communication equipment, consumer electronics and other fields.
- Lightning protection: In power and signal lines, TVS diodes can be used to prevent instantaneous overvoltage caused by lightning strikes and protect equipment from damage. This is especially important for outdoor equipment and communication base stations.