Lightning voltage/current characteristics
1.2/50uS lightning pulse waveform (IEC61000-4-5)
1.2/50uS lightning pulse waveform (IEC61000-4-5)
The advantages and disadvantages of lightning surge protection devices
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Gas discharge tube
â– Semiconductor discharge tube
â– Varistors
â– TVS
â– Lightning Protection Module (SPD)
Gas discharge tube
Volt-ampere characteristics
Problems in the application
Advantages and disadvantages
Semiconductor discharge tube
Volt-ampere characteristics
Advantages and disadvantages
Varistors
Volt-ampere characteristics
Advantages and disadvantages
Transient Voltage Suppressors (TVS)
Volt-ampere characteristics
Advantages and disadvantages
Comparison of several protection devices
Lightning protection circuit design
Three-stage protection circuit
Typical circuit analysis
Typical circuit analysis
Single-phase AC power two-stage protection circuit
Signal interface protection circuit
Lightning protection device wiring attention
Reduce parasitic inductance
Lightning protection device layout on PCB
Of course, in many cases, the actual application situation changes to different degrees depending on the product's work environment, and the different levels of protection that different products need to make will also appear in many different combinations. The following figure shows Currently the most common components appear in various ports.
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