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What Is Interfering With The Power Adapter?

Shenzhen GEO Technology Co.,Ltd | Updated: Jun 09, 2017

  What is interfering with the power adapter?

  The anti-interference ability of the external, such as surge, lightning, should optimize the AC input and DC output Port lightning protection. The combination method of ZnO varistor and gas discharge tube can be used to solve the lightning strike.

  Reducing high voltage and large current line, especially the original side and switch pipe of transformer, the area surrounded by the power filter capacitor circuit, reducing the output rectifier circuit and the area of the continuous-current diode circuit and the DC filter circuit, reducing the leakage inductance of the transformer, distributing capacitance of the filter capacitor, and using the filter capacitor with high resonant frequency.

  To reduce the internal interference of the power adapter, we should start with the following aspects: Pay attention to the digital circuit and analog circuit single point grounding, the large current circuit and the small current, especially the current, the voltage sampling circuit of the single point of grounding, to reduce the common resistance interference, reduce the impact of the ring; wiring the spacing between adjacent lines and the signal properties, to avoid crosstalk;

  For electrostatic discharge, the use of TVs tube and the corresponding grounding protection, increase the small signal circuit and the distance between the casing, or choose a device with anti-static interference to solve.