Generally speaking, you should first select the type, protection type, output voltage and current specifications of the corresponding charger according to the type and voltage of the battery you are charging, and then select a charger that meets the corresponding input conditions according to the city grid voltage. It is best to choose a fully intelligent battery charger.
[Attachment: MAX797 battery charger provides 2.5A current with high efficiency]
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Countermeasures for Radiated Emission Exceeding Standards of Low-Power Portable Audio Products (including Chargers and DC-DC)
1. Introduction to the power supply system of portable audio products 1.1 Background In actual product development, the EMI test of portable products is to charge the product with an adapter, and other external devices must also be connected during testing. The following takes the development of an actual product as
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