source:power adapter Popular:adapter release time:2021-11-26 09:40:43 Article author:sznbone
Because of the long-term use of electronic equipment, it may be necessary to purchase a new power adapter in the later period. The adaptation conditions must be determined first, and the parameters of the power adapter are various, so it is not possible to use the adapter for charging at will. Today, let's take a look at the adaption conditions for choosing the power adapter and how to buy it. 9V power adapter
The application of the power adapter in the notebook computer, the semiconductor integrated circuit (IC) used in the notebook computer requires a DC voltage. The DC voltage is used because the IC cannot work under the AC voltage of 50Hz or 60Hz, and the IC will be reversed voltage (reverse bias voltage). )damage. Generally, the fault voltage of the IC is below DC20V (DC5V~10V). The IC can only work stably within the voltage range of the high-power power adapter specified in the product specifications. Therefore, the voltage of the power adapter that supplies the IC must work within the operating range. 9V power adapter
Reduce the area surrounded by the high-voltage and high-current circuits, especially the primary side of the transformer, the switch tube, and the power supply filter capacitor circuit;
Reduce the area enclosed by the output rectifier circuit, freewheeling diode circuit and DC filter circuit;
Reduce the leakage inductance of the transformer and the distributed capacitance of the filter capacitor;
Use filter capacitors with high resonant frequency, etc.
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