Detection of lithium-ion chargers for mobile communication handheld devicesHow to apply for a report? What items need to be tested? We will conduct testing and evaluation in strict accordance with the standards. We can also provide personalized testing plans and reports according to your needs.

A charger is a device that charges other electrical appliances. This device adopts high-frequency power supply technology, intelligent dynamic adjustment charging technology, and utilizes power electronic semiconductor devices to convert AC power with fixed voltage and frequency into DC power. It is generally composed of flexible circuit boards, electronic components, and other components. According to the designed working frequency of the circuit, it can be divided into power frequency machines and high-frequency machines. It is widely used in various fields, especially in the field of daily life, and is widely used in mobile phones Common electrical appliances such as cameras. Chargers (chargers) can be divided into power frequency machines and high-frequency machines based on the designed operating frequency of the circuit. Power frequency machines are designed based on traditional analog circuit principles, and the internal power components of the machine (such as transformers, inductors, capacitors, etc.) are relatively large. Generally, there is relatively small noise when operating under high load. However, this model has strong resistance performance, reliability, and stability in harsh power grid environmental conditions compared to high-frequency machines

Test report function

1、Project bidding: issue authoritative third-party CMA/CNAS qualification report；

2、E-commerce platform entry: quality inspection reports recognized by major e-commerce platforms；

3、Used as sales report: issuing a test report with legal effect to make consumers feel more at ease；

4、Papers and scientific research: providing professional and personalized testing needs；

5、Judicial services: providing scientific, fair and accurate testing data；

6、Industrial problem diagnosis: verifying the troubleshooting and correction of problems in industrial production；