CN201867451U - Output detection and analysis system for switching power supply - Google Patents
Output detection and analysis system for switching power supply Download PDFInfo
- Publication number
- CN201867451U CN201867451U CN 201020599622 CN201020599622U CN201867451U CN 201867451 U CN201867451 U CN 201867451U CN 201020599622 CN201020599622 CN 201020599622 CN 201020599622 U CN201020599622 U CN 201020599622U CN 201867451 U CN201867451 U CN 201867451U
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- China
- Prior art keywords
- power supply
- analysis unit
- output signal
- switching power
- analysis
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Abstract
The utility model relates to an output detection and analysis system for a switching power supply, which comprises a two-dimensional wavelet analysis unit and a power spectrum density analysis unit, wherein the two-dimensional wavelet analysis unit and the power spectrum density analysis unit are used for reading an output signal of the power supply for analysis; all frequency component signals contained in the output signal and the strength results thereof are extracted by the power spectrum density analysis unit and then analyzed by the two-dimensional wavelet analysis unit to reduce the waveform character of each frequency component. Through the design of the system, the obtained analysis results for the output signal are accurate, and any frequency signal or the ripple information contained in the output within the measurement precision scope can be reflected. The output detection and analysis system has strong universality and simple analysis option, is easy to use, can be taken as the auxiliary design of the power supply and has the important practical significance to improve and optimize the performance and the design of the switching power supply.
Description
Technical field
The utility model relates to a kind of Switching Power Supply output and detects and analytic system, relates in particular to a kind of based on 2-d wavelet and power
The Switching Power Supply output of spectral density detects and analytic system, belongs to field of switch power.
Background technology
The Switching Power Supply product has a wide range of applications in electronic equipment, is the source of its power, and the output of power supply is related to the safety and stablization of total system especially.Along with the progress of electronic technology and the raising of Switching Power Supply level of application, very high requirement has been proposed all in aspects such as the stability of the modularization of switch power source products, high power density, output signal, anti-interference.Because power-supply system is the system ensemble of the electromagnetism and the circuit of a more complicated, the various noise signals that cause by electromagnetic interference (EMI), Conduction Interference etc. have been comprised in its output signal, therefore can understand with the various frequencies of analyzing whole output signal and form and intensity, to optimizing power supply design, the important actual meaning of enhancing product performance.
The utility model content
Technical matters to be solved:
A kind of various frequencies compositions that decompose and analyze the Switching Power Supply product output signal are provided at above not enough the utility model, and analyze its origin cause of formation in conjunction with actual design, thereby the Switching Power Supply output that can finish whole power-supply system optimal design detects and analytic system.
Technical scheme:
A kind of Switching Power Supply output detects and analytic system comprises 2-d wavelet analytic unit and power spectral-density analysis unit; 2-d wavelet analytic unit and power spectral-density analysis unit read the power supply output signal and analyze, the power spectral-density analysis unit extracts all frequencies that output signal comprised and forms signal and intensity results thereof, analyze by the 2-d wavelet analytic unit again, reduce the waveform character of each frequency content.
Beneficial effect:
Resulting accurate by system design of the present utility model to the output signal analysis result, but and output is comprised in the reflected measurement accuracy rating optional frequency signal or ripple information, its highly versatile, analytical plan be simple, be easy to use, can be used as the Aided Design of power supply product, performance and the design that improves and optimize Switching Power Supply had important and practical meanings.
Description of drawings
Fig. 1 is the schematic diagram of Switching Power Supply output detection and analytic system:
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
As shown in Figure 1, Switching Power Supply output detection and analytic system comprise 2-d wavelet analytic unit and power spectral-density analysis unit; 2-d wavelet analytic unit and power spectral-density analysis unit read the power supply output signal and analyze, but the frequency signal that the wavelet analysis unit of this moment can decomposite is more limited, therefore mainly analyze by the power spectral-density analysis unit, the power spectral-density analysis unit extracts all frequencies that output signal comprised and forms signal and intensity results thereof, though the extraction result of power spectral-density analysis unit can express the intensity of each frequency content to a certain extent, but it is not directly perceived, so analyze by the 2-d wavelet analytic unit again, reduce the waveform character of each frequency content.
Though the utility model with preferred embodiment openly as above; but they are not to be used for limiting the utility model; anyly be familiar with this skill person; in the spirit and scope that do not break away from the utility model; can do various variations or retouching from working as, what therefore protection domain of the present utility model should be defined with the application's claim protection domain is as the criterion.
Claims (1)
1. a Switching Power Supply output detects and analytic system, it is characterized in that: comprise 2-d wavelet analytic unit and power spectral-density analysis unit; 2-d wavelet analytic unit and power spectral-density analysis unit read the power supply output signal and analyze, the power spectral-density analysis unit extracts all frequencies that output signal comprised and forms signal and intensity results thereof, analyze by the 2-d wavelet analytic unit again, reduce the waveform character of each frequency content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020599622 CN201867451U (en) | 2010-11-10 | 2010-11-10 | Output detection and analysis system for switching power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020599622 CN201867451U (en) | 2010-11-10 | 2010-11-10 | Output detection and analysis system for switching power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867451U true CN201867451U (en) | 2011-06-15 |
Family
ID=44138603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020599622 Expired - Lifetime CN201867451U (en) | 2010-11-10 | 2010-11-10 | Output detection and analysis system for switching power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201867451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459305A (en) * | 2013-09-17 | 2015-03-25 | 鸿富锦精密工业（深圳）有限公司 | Power detection circuit |
| CN109358297A (en) * | 2018-11-07 | 2019-02-19 | 吉林大学 | A kind of device and method of detector power supply system measurement |
-
2010
- 2010-11-10 CN CN 201020599622 patent/CN201867451U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459305A (en) * | 2013-09-17 | 2015-03-25 | 鸿富锦精密工业（深圳）有限公司 | Power detection circuit |
| CN109358297A (en) * | 2018-11-07 | 2019-02-19 | 吉林大学 | A kind of device and method of detector power supply system measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |