Power adapter is a power supply conversion device for small portable electronic devices and electronic appliances. It is generally composed of shell, transformer, inductance, capacitance, control IC, PCB board and other components. Its working principle is converted from AC input to DC output, and it can be divided into plug-in wall type and desktop type according to connection mode. It is widely used in security cameras, set-top boxes, routers, lamps, massagers and other equipment.
Power adapter, also known as external power supply, is a power supply voltage conversion device for small portable electronic devices and electronic appliances. It is commonly used in small electronic products such as mobile phones, liquid crystal displays and notebook computers.
Although the power adapter has high efficiency, it is not 100%. The thermal resistance of the power adapter chip is relatively small, and the heat dissipation capacity is relatively poor. Therefore, it is necessary to calculate the voltage and current required by the system, so as to calculate the power consumption of the system, and calculate whether the temperature of the chip exceeds the temperature that the chip can withstand through the thermal resistance. Then, with a certain margin, select the chip. According to the efficiency curve, the power consumption on the switching power supply chip is also calculated.
Shenzhen Fining Electronics Co., Ltd. focuses on R&D, OEM and ODM PoE products, LED power supply and power adapter. 36W adapter
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