Extension circuit board

A circuit board and NOT gate circuit technology, applied in the mechanical field, can solve the problem that the circuit parameters of the CPU circuit board cannot be collected in real time.

Active Publication Date: 2014-06-11
CHINA CNR CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There are at least the following problems in the prior art: the circuit parameters on the CPU circuit board cannot be collected in real time during the test

Method used

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  • Extension circuit board
  • Extension circuit board

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Embodiment Construction

[0019] figure 1 It is a schematic diagram of the principle of the extended circuit board provided by the embodiment of the present invention, figure 2 It is a schematic diagram of the use of the extended circuit board provided by the embodiment of the present invention.

[0020] see figure 1 and figure 2 , the embodiment of the present invention provides an extension circuit board, which is used to extend the installation interface of the CPU circuit board of the subway converter from the inside of the chassis to the outside of the chassis, so as to facilitate the collection of required test data. The extension circuit board includes corresponding settings The first output interface 1 and the first input interface 2, the second output interface 4 and the second input interface 5, the first power interface 7 and the second power interface 8. The number of binding posts of the first output interface 1 and the first input interface 2 correspond one-to-one, and a first NOT ga...

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Abstract

The invention provides an extension circuit board. The extension circuit board includes first output interfaces, first input interfaces, second output interfaces, second input interfaces, first power supply interfaces and second power supply interfaces; the first output interfaces are in one-to-one correspondence with the first input interfaces; first NOT gate circuits are arranged between the first output interfaces and the first input interfaces and are used for filtering and amplifying signals outputted by the first output interfaces; the second output interfaces are in one-to-one correspondence with the second input interfaces; second NOT gate circuits are arranged between the second output interfaces and the second input interfaces and are used for filtering and amplifying signals outputted by the second input interfaces; the first power supply interfaces are in one-to-one correspondence with the second power supply interfaces; and grounding capacitors are arranged between the second output interfaces and the second input interfaces. With the extension circuit board provided by the technical scheme of the invention adopted, it can be ensured that backplane interfaces of a cabinet can extend to the exterior of the cabinet and then are in insertion connection with a CPU circuit board, and therefore, the CPU circuit board can be exposed at the exterior of the cabinet, and programming and parameter acquisition can be facilitated.

Description

technical field [0001] The invention relates to mechanical technology, in particular to an extended circuit board. Background technique [0002] The converter on the subway vehicle includes a box body, a control unit and various power modules arranged inside the box body. The control unit is generally made into a modular chassis mode. The control unit includes several circuit boards and electrical components arranged on each circuit board. The above-mentioned several circuit boards include a central processing unit (Central Processing Unit, hereinafter referred to as CPU) circuit board. The chassis is provided with dedicated interfaces for each circuit board, such as the CPU circuit board interface, and each circuit board is installed at a set position of the chassis. [0003] After the converter is assembled, it needs to be debugged to test whether the performance of the converter is normal. Generally, it is necessary to collect corresponding data from a Joint Test Actio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G01R31/28
Inventor 俞彦军姜涛吴志友
Owner CHINA CNR CORPORATION
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