source:power adapter Popular:adapter release time:2021-08-12 15:15:38 Article author:sznbone
With the development of industrialization and the improvement of technological level, the development of power adapters is also changing with each passing day, especially for the equipment power supply which is mainly to meet the stable voltage output, and its application range and use area are very wide. Here power adapter manufacturers introduce it to everyone The basic composition and main classification.
Although many types of power adapters have been introduced in the current technological development, their principle is still composed of four basic modules, which are divided into four parts: main circuit, control circuit, detection circuit and auxiliary power supply. The main circuit is mainly to achieve the amplitude of the impact circuit and control the impact current at the input.
The input filter is to meet the requirements of receiving current impurities and refuting the impurities in the input current; wave rectification and filtering are its main functions, in order to rectify the AC power in the grid to normal DC power; the inverter part is to meet The rectified DC power is transformed into a stable AC power supply, which is also the core component of its AC switching power adapter.
The output rectification and filtering is to realize the re-rectification of the stable AC power supply into usable DC power. Through two rounds of rectification, the impurities and clutter in the AC power will be filtered out, and the current provided is safer. The control circuit is to realize the control structure of various data statistics and current output and input size in the whole rectification process. On the one hand, it can take alternating current from the input source as a sample and compare it with the output direct current to better maintain the circuit. Stability and safety of the circuit.
As the name suggests, the detection circuit is to satisfy its detection and judgment in the process, so as to provide various data and impurity analysis to the control circuit. The last auxiliary power supply is to meet the requirement of starting the hardware and software equipment of the switching power adapter normally, and provide a certain amount of power to supply the power of the control circuit and the detection circuit. The four parts form a switching power adapter.
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