Smart speaker surge test and legal protection scheme
Test products: smart speaker surge test;
Temperature and humidity of Leimao laboratory: 26 degrees, 61%;
Test standard: IEC61000-4-5, 300V, 5 times;
Test purpose: to test whether Leimao SD1501P4-3 has passed IEC61000-4-5 standard.
1. The requirements for testing products and standards are as follows:
2. Lei Mao adopts circuit protection scheme:
3. Test standard and result data record:
|
project |
parameter |
Results (before replacing Lei Mao) |
|
surge8/20μS |
V=170V,Power Supply 12V,5C |
Fail (fourth time) |
4.the test was changed to Lei Mao SD1501P4-3 photo and result data record 
|
Leimao model |
project |
parameter |
Results |
|
SD1501P4-3 |
surge8/20μS |
V=300V,Power Supply 12V,10C |
pass |
SD1501P4-3 is recommended to meet the surge test requirements.
summary
The interface protection of electronic products needs over-voltage protection devices, and many engineers realize that protection devices are needed. However, due to improper selection or failure to follow the design principles of ESD circuit PCB, the electrostatic test or EMC test of the products failed, and the products were repeatedly verified and tested, wasting manpower and financial resources, which always caused the products to be delayed in market, or over-designed, resulting in cost pressure. Leimao Electronics provides EMC design services for customers, provides laboratories to do bottom-up tests, and completes the design with high efficiency and convenient cost control, hoping to do our best for more customers to quickly pass EMC projects and improve product reliability. Leimao Electronic emc lab provides free testing and reference circuits for peripheral electrostatic protection. Leimao test equipment is available for customers to test for free. Please feel free to contact Hu Gong at 18016225001.
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