source:power adapter Popular:adapter release time:2021-07-16 13:38:02 Article author:sznbone
Shenzhen can customize the power adapter according to customer requirements, which one is better? What are the advantages? Shenzhen customized power adapter,
power adapter features
1. Small size, light weight, easy to carry around. Switching power adapters do not use bulky power frequency transformers. After the power dissipation on the switch MOS tube is greatly reduced, a larger heat sink is omitted. Due to these two reasons, the switching power adapter is small in size and light in weight.
2. Low power consumption and high efficiency. In the switching power supply adapter circuit, the switching MOS tube is excited by the excitation signal, the conversion speed is very fast, the frequency is generally above 50kHz, which makes the power consumption of the switching MOS tube very small, and the efficiency of the power supply can be greatly improved, and its efficiency can reach 90%.
3. The efficiency of filtering is greatly improved, and the capacity and volume of the filtering capacitor are greatly reduced. The operating frequency of the switching power supply adapter is basically above 50kHz. Under the same ripple output voltage, when the switching power supply is used, the capacity of the filter capacitor is only 1/500~1/1000 of the filter capacitor in the linear stabilized power supply.
4. Wide voltage regulation range. The output voltage of the switching power supply adapter is adjusted by the duty cycle of the excitation signal, and the change of the input signal voltage can be compensated by frequency modulation or width modulation. In this way, when the power frequency grid voltage changes greatly, it can still ensure a relatively stable output voltage. Therefore, the voltage stabilization of the switching power supply adapter is very wide, and the voltage stabilization effect is very good. Switching regulated power supply not only has the advantages of wide voltage regulation range, but also has many ways to realize voltage regulation. The designer can according to the requirements of actual application, such as anti-surge soft start, anti-overvoltage, undervoltage, overheating, and overheating. Current, short circuit, and lack of equal protection circuits. Flexible selection of various types of switching power supply integrated circuit chip solutions.
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