EMC testing of Bluetooth electronic products powered by lithium batteries

QWE4562009

EMC testing of Bluetooth electronic products powered by lithium batteries [Copy link]

QWE4562009

For example, if you want to test a Bluetooth 2.4G product, what is the EMC standard? For EMI, the effective signal of the product itself is a 2.4G high-frequency signal. Does it comply with the regulations if it cannot exceed 2.4G? Do products that are not connected to the mains and are only powered by 3.7V lithium batteries also need to undergo conduction testing?

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It should include battery EMC testing standards and general electromagnetic compatibility EMC testing standards

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The specific test standards should be studied in advance.

The EMC testing standards used in China are: GB4343.1&2, GB17625.1 & 2. These standards describe the test site, equipment and methods.

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Generally, you need to prepare some information

For example, the Bluetooth user manual, technical requirements, technical data, schematics, circuit diagrams, block diagrams.
There are also key components, modules, or raw material lists .

QWE4562009

qwqwqw2088 posted on 2021-7-24 08:36 Generally, you need to prepare some information, such as the Bluetooth user manual, technical conditions, technical information, schematic diagram, circuit diagram, and block diagram. ...

Conduction should not be tested. It is mainly for power supply. My base is powered by an external adapter 5V

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QWE4562009 posted on 2021-7-26 14:12 Conduction should not be tested. It is mainly for power supply. My base is powered by an external adapter 5 ...

This depends on the interference of battery charging and discharging on the system. Although the charging and discharging current of the original poster's product is small, whether the test should be carried out according to the standard

It is not my own will or illusion.

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Generally, when conducting this kind of test, the standard will select one of the charging and discharging processes when conducting the conducted emission test of the battery pack, and select the normal operating current for testing.