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Simulated disturbance source for electromagnetic compatibility diagnosis

A technology of electromagnetic compatibility and disturbance source, which is used in the measurement of interference from external sources, components of electrical measuring instruments, and measurement of electricity. It can solve the problem of inability to simulate electromagnetic radiation of circuit boards and achieve the effect of shielding effectiveness.

Inactive Publication Date: 2018-02-16
BEIJING INST OF COMP TECH & APPL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the simulated disturbance sources used in EMC diagnosis on the market can basically meet the needs of EMC diagnosis, but this method cannot simulate the electromagnetic radiation of the actual circuit board

Method used

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  • Simulated disturbance source for electromagnetic compatibility diagnosis
  • Simulated disturbance source for electromagnetic compatibility diagnosis
  • Simulated disturbance source for electromagnetic compatibility diagnosis

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Embodiment Construction

[0016] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings and examples.

[0017] figure 1 Shown is a block diagram of the simulated disturbance source used for electromagnetic compatibility diagnosis in the present invention, and Fig. 2 is a schematic diagram of the appearance of the simulated disturbance source of the present invention; image 3 It is a schematic diagram of the appearance of the comb signal generator; Figure 4 It is another schematic diagram of the appearance of the comb signal generator; Figure 5 A schematic diagram of the appearance of the simulated radiator, such as Figure 1 to Figure 5 As shown, the simulated disturbance source used for EMC diagnosis in the present invention includes: comb signal generator 1 and simulated radiator 2. Wherein, comb signal generator 1 ...

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Abstract

The invention discloses a simulated disturbance source for an electromagnetic compatibility diagnosis. The simulated disturbance source comprises a comb signal generator and a simulated radiator. Thesimulated radiator consists of an SMB radio-frequency interface, a power amplifier, a radiating unit, an AC power interface and an AC / DC module. The SMB radio-frequency interface of the simulated radiator receives a comb signal of the comb signal generator; the AC power interface receives a 220-V power supply; the AC / DC module carries out AC / DC conversion and voltage transformation processing andsends the current after direct-current conversion to the power amplifier; and the power amplifier amplifies the comb signal to the radiating unit. The radiating unit is used for generating radiation.A signal / power output interface is used for providing a comb signal and a power signal for another simulated radiator. According to the simulated disturbance source, the electromagnetic radiation of the real circuit board is simulated in the electromagnetic compatibility diagnosis; and thus electromagnetic radiation of the actual circuit board in different working states is simulated.

Description

technical field [0001] The invention relates to a novel electromagnetic simulation disturbance source, in particular to a simulation disturbance source used for electromagnetic compatibility diagnosis. Background technique [0002] When electrical and electronic equipment and systems work normally, they often generate some useful or useless electromagnetic energy, which affects the normal operation of other equipment and systems, forming "electromagnetic disturbance". In order to suppress these "electromagnetic disturbances", reasonable electromagnetic compatibility diagnostic measurements must be taken throughout the design and trial production stages of equipment or systems, and quantitative estimation and simulation of potential electromagnetic disturbances must be carried out to avoid over-design or under-design of equipment and systems. . Especially in the fields of aviation and aerospace, electromagnetic compatibility for electrical and electronic equipment and system...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R1/28
CPCG01R31/001G01R1/28
Inventor 任凯琦刘锟孙士飞郑箘闫国玉
Owner BEIJING INST OF COMP TECH & APPL