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A filtering method and device for a parameter recorder of a switching power supply converter

A switching power supply and parameter recording technology, which is applied in measuring devices, measuring devices, electrical digital data processing, etc., can solve the problem that the filtering algorithm cannot correct historical data, etc., and is more compatible with microprocessors and facilitates rapid sampling. , The effect of simple mathematical model

Active Publication Date: 2018-09-18
桂林利华电子科技有限公司
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Problems solved by technology

[0004] What the present invention needs to solve is the problem that the existing filtering algorithm cannot correct historical data, and provides a filtering method and device for switching power supply converter parameter recorder

Method used

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  • A filtering method and device for a parameter recorder of a switching power supply converter
  • A filtering method and device for a parameter recorder of a switching power supply converter
  • A filtering method and device for a parameter recorder of a switching power supply converter

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with embodiment.

[0041] A kind of filtering method of switching power supply converter parameter recorder, such as figure 1 shown, including the following steps:

[0042] Step 1, the processor module performs A / D sampling on the signal to be tested and the noise signal at a period T to obtain n sampled values ​​of the signal to be tested and n sampled values ​​of the noise signal, which are respectively set to d 1 , d 2 , d 3 ,...,d n and N 1 ,N 2 ,N 3 ,...,N n ;

[0043] Step 2, analyze according to the existing adaptive cancellation system, the signal to be tested:

[0044] d(t)=s(t)+N 0 (t)

[0045]Among them, s(t) is the useful signal, N 0 (t) is the noise signal, which is the noise to be offset, s(t) and N 0 (t) Irrelevant.

[0046] The noise signal N in the signal to be tested can be collected from the noise sampling circuit of the switching power converter parameter recorder 1 (...

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Abstract

The invention provides a filtering method and device for a parameter recorder of a switching power supply converter, and belongs to the field of switching power supplies. The device comprises an input end sampling module, a switching power supply converter, a temperature sensor module, an output end sampling module, a processor module, a nonvolatile memory module, an independent power supply module and a USB (Universal Serial Bus) interface module, wherein the output ends of the input end sampling module and the output end sampling module are both connected with the processor module; the switching power supply converter is connected with the processor module through the temperature sensor module; the output end of the processor module is connected with the nonvolatile memory module; the output end of the independent power supply module is connected with the nonvolatile memory module to supply power; and the output end of the nonvolatile memory module is connected with the USB interface module. Various parameters of main components of the switching power supply converter in a working process are acquired and stored in a nonvolatile memory, so that data analysis after a fault occurs to the switching power supply converter can be performed and fault causes can be conveniently found.

Description

technical field [0001] The invention relates to the field of switching power supplies, in particular to a filtering method and device for a parameter recorder of a switching power supply converter. Background technique [0002] With the development of modern power electronics technology, switching power supply technology is also constantly improving. At present, switching power supply is widely used in various electronic equipment due to its small size, light weight and high efficiency. It is an indispensable power supply device for the rapid development of today's electronic information industry. However, when the switching tube in the switching power supply works in the switching state, it will generate spike interference and harmonic signals. Although it has been rectified and filtered, the ripple and noise in the output voltage and output current are still relatively large. These noises will have a great impact on the later data processing, thereby affecting the perform...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/14G01D15/00
CPCG01D15/00G06F17/142
Inventor 张盛明廖志贤唐晓虎刘世仁黄国现李秋范仲雪
Owner 桂林利华电子科技有限公司
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