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Detection circuit for switching components and detector

A technology for switching components and detecting circuits, applied in the direction of circuit breaker testing, etc., can solve problems such as singleness, and achieve the effects of simple operation method, reliable detection results, and easy implementation.

Inactive Publication Date: 2019-11-29
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Today, when a large number of controllable components are used, there is no single and effective way to detect various components inside the circuit board one by one. As a result, once the circuit board has a problem, the control requirements can only be achieved by replacing the circuit board as a whole. , to meet processing needs

Method used

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  • Detection circuit for switching components and detector
  • Detection circuit for switching components and detector
  • Detection circuit for switching components and detector

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Embodiment

[0047] During the machining process of the CNC small hole EDM machine, the actual machining current does not match the set value, which seriously affects the machining efficiency and product quality of the parts. The power board could not be tested before, and the processing needs could only be met by replacing the power board as a whole. By adopting the detector of the present invention, the internal components of the power board can be detected one by one, and the faulty components can be replaced by a single one, so as to ensure the function of the circuit board and realize the normal use of the circuit board. The price of a field effect tube is only: model IRF450, the market price is 4.7 yuan; the purchase cost of a circuit board is 2,564 yuan, so every inspection and maintenance of a circuit board can save 2,500 yuan in spare parts procurement costs, and the economic benefits of saving are obvious. Through the detection of the five faulty power boards replaced on site, ea...

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Abstract

The invention discloses a detection circuit for switching components and a detector. The detection circuit comprises a first rectifier bridge, a first three-terminal voltage regulator and a first light-emitting diode, wherein an input end of the first rectifier bridge is connected with an AC voltage source; an anode of an output end is connected with the input end of the first three-terminal voltage regulator; a cathode of the output end is connected with a ground terminal of the first three-terminal voltage regulator; the output end of the first three-terminal voltage regulator is connected with the light-emitting diode, to-be-detected switching components and the ground terminal of the first three-terminal voltage regulator in sequence; the first rectifier bridge is used for converting AC voltage input from the AC voltage source into first DC voltage; the first three-terminal voltage regulator is used for outputting stable first preset voltage according to the input first DC voltage;and the detector comprises the detection circuit and a housing. According to the detector, the switching components can be detected one by one and a faulty component can be solely replaced when found, so that the function of a whole circuit board can be ensured, normal use of the circuit board is achieved and the economic benefit is obvious.

Description

technical field [0001] The invention belongs to the field of electronic circuits, and relates to a switch element detection circuit and a detection instrument. Background technique [0002] With the development of aviation and aerospace technology, more and more special processes are used in parts processing. Among them, EDM electric discharge machining equipment is the most frequently used one in the field of special processing. The core components of the equipment are all composed of switching components. Secondly, electronic circuits designed with switching components in CNC equipment drivers are also very common. [0003] Today, when a large number of controllable components are used, there is no single and effective way to detect various components inside the circuit board one by one. As a result, once the circuit board has a problem, the control requirements can only be achieved by replacing the circuit board as a whole. , to meet the processing needs. Contents of ...

Claims

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Application Information

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IPC IPC(8): G01R31/327
CPCG01R31/327
Inventor 王昱芃苏严王文博温学兵韩志民张宁宁袁泉强莹涛
Owner AECC AVIATION POWER CO LTD
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