Do you know the advantages and classification of power adapters?

　　Power adapters can be seen everywhere in our lives, especially in the configuration of computers, so do you know what the advantages of power adapters are and what are the classifications? Let's follow the manufacturer to find out!

　　  Advantages of Power Adapters

　　  The power adapter is a static frequency conversion power supply composed of power semiconductor components. It is a static frequency conversion technology that converts the power frequency (50Hz) to the intermediate frequency (400Hz ~ 200kHz) through a thyristor. It has two frequency conversion modes: AC-DC-AC frequency conversion and AC-AC frequency conversion. Compared with the traditional power generator set, it has the advantages of flexible control mode, large output power, high efficiency, convenient changing operating frequency, low noise, small size, light weight, easy installation, easy operation and maintenance, etc. It is widely used in building materials, metallurgy, It has been widely used in defense, railway, petroleum and other industries. The power adapter has high efficiency and variable frequency. The main technologies and advantages of modern power adapters are as follows.

　　(1) The startup mode of the modern power adapter adopts the sweep-frequency zero-voltage soft-start mode in the form of self-excitation and self-excitation. During the entire startup process, the frequency regulation system and the current and voltage regulation closed-loop system track the change of the load at all times to achieve the ideal. Soft start, this kind of starting method has little impact on the thyristor, which is beneficial to prolong the service life of the thyristor. At the same time, it has the advantage of easy starting for both light and heavy loads, especially when the steelmaking furnace is full or cold.

　　(2) The control circuit of the modern power adapter adopts the microprocessor constant power control circuit, and the inverter Ф angle automatic adjustment circuit is installed. During the operation process, the changes of voltage, current and frequency are automatically monitored at any time, and the judgment is made from this. The load changes, the matching of the load impedance is automatically adjusted, and the power output is constant, so as to achieve the purpose of saving time, saving electricity, and improving the power factor. The energy saving is obvious and the grid pollution is small.

　　(3) The control circuit of the modern power adapter is designed with CPLD software, and its program input is completed by the computer. It has high pulse precision, anti-interference, fast response speed, and convenient debugging. , lack of multiple protection functions, because the circuit components always work within the safe range, thus greatly improving the service life of the power adapter.

　　   (4) The modern power adapter can automatically judge the phase sequence of the three-phase incoming line, and it is not necessary to distinguish the phase sequence of A, B, and C, and the debugging is extremely convenient.

　　   (5) The circuit boards of modern power adapters are all made of wave crest automatic soldering, and there is no virtual soldering phenomenon. All kinds of adjustment systems use non-contact electronic adjustment, no fault points, extremely low failure rate, and extremely convenient operation.

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