Fast Parameter Matching Power Filter Combination

Abstract

The invention discloses a fast parameter matching power supply filter combination for providing a power supply filter, which is simple and convenient and is fast and accurate to adjust the parameters.The fast parameter matching power supply filter combination is achieved by the following technical scheme: standard module slots are arranged on a filtering motherboard along the length direction, and each slot has the same internal and external structures; filter standard plug modules of different types and different parameters can be inserted in any standard slot in standard plug module slots;five-port matrix plug devices arranged around the central plug c are arranged on the diagonal line of each filter standard plug module; and a differential mode capacitance and discharge resistance standard circuit, a common mode capacitance standard circuit, a differential mode inductance standard circuit, a common mode inductance standard circuit, a transient voltage suppressor standard circuit,a short connector standard circuit, or at least one standard circuit with different parameters are respectively packaged in the standard plug modules of different types.

Description

technical field [0001] The invention relates to a power supply filter device that can quickly adjust the filter circuit structure and filter element parameters on site according to the characteristics of electronic products, and is used to guide the design and customization of power supply filters. More specifically, the invention relates to a quick adjustment and matching parameters of the mains filter. Background technique [0002] Electronic products generally contain power supply components, which convert external power supply to various voltages required by the various components in the electronic product. This kind of voltage transformation often needs to go through transformation processes such as rectification, chopping, switching, and oscillation, which will generate voltage pulses. The voltage pulse contains rich spectral components, which propagate along the power line to the external power supply system, forming conduction interference on the external power line...

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Problems solved by technology

This method also faces great limitations, because the EMI power filter sold on the market only gives the insertion loss under the voltage, current and standard impedance, and its circuit structure and component parameters are not disclosed to the public, and the metal casing is used to seal the filter. Plastic packaging, the parameters cannot be adjusted, and it is also difficult to select the required matched filter without knowing the characteristics of the power input terminal of the electronic product.

Another solution is to use discrete components to temporarily weld on the input power of electronic products and assemble the power filter. This method is also very cumbersome and dangerous. A little carelessness will cause a short circuit of the power supply, and professional power filter design is also required. Knowledge

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