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Switching boards and DC power-supply testing system provided with the switching boards

A test system and DC power supply technology, applied in the field of adapter boards, can solve problems such as difference in test results, inability to meet the driving load, affecting test accuracy, etc., to achieve the effect of improving test accuracy

Inactive Publication Date: 2013-10-23
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there is a certain distance between the output end of the voltage conversion circuit and the pins of the socket, when the voltage output by each voltage output end of the voltage conversion circuit reaches the corresponding pin of the socket, a A certain voltage drop, which is easy to cause the voltage of the pin used to connect the load (that is, the load point) is lower than the voltage at the output end of the voltage conversion circuit (that is, the voltage test point), which affects the accuracy of the test
For example, the voltage measured at the output terminal of the voltage conversion circuit is 5V, which meets the requirements, and when the voltage is output to the corresponding +5V pin of the slot, the voltage on the +5V pin may actually be only 4.5V , so that the driving load cannot be satisfied
Moreover, different testers place slightly different positions of test probes, which will also cause differences in test results

Method used

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  • Switching boards and DC power-supply testing system provided with the switching boards
  • Switching boards and DC power-supply testing system provided with the switching boards
  • Switching boards and DC power-supply testing system provided with the switching boards

Examples

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Embodiment Construction

[0015] see Figure 1-Figure 3 , the adapter board 10 of the preferred embodiment of the present invention is applied to a DC power supply testing system 100 . The adapter board 10 is plugged into a PCI series expansion card 200 and is used to transfer the voltage of each power supply pin of the slot of the expansion card.

[0016] The expansion card 200 may be a Peripheral Component Interconnect (PCI) expansion card, a PCI-X expansion card or a high-speed Peripheral Component Interconnect-Express (PCI-E) expansion card. The expansion card includes a plurality of slots 210 and a voltage conversion circuit 230 . Each socket 210 includes a plurality of +5V power pins, a plurality of +3.3V power pins, a plurality of +12V power pins and a plurality of -12V power pins. The voltage conversion circuit 230 is used to output multiple power sources to corresponding power pins of each socket 210 . For example, output +5V power to the +5V power pin of each slot 210 , output +3.3V power ...

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Abstract

An adapter board includes a PCB, a first gold finger mounted on the PCB, and a plurality of first connectors mounted on the PCB. The first gold finger includes a first ground pin and a plurality of power pin groups. Each first connector includes a load connection pin and a second ground pin electronically connected to the first ground pin, the load connecting pin of each first connector is electronically connected to a load, a oscilloscope, and a corresponding power pin group.

Description

technical field [0001] The invention relates to an adapter board, in particular to an adapter board for transferring voltage signals and a DC power supply testing system with the adapter board. Background technique [0002] Extended Peripheral Component Interconnect Extended (PCI-X) expansion card can be used to increase the number of PCI-X cards that can be connected to the motherboard. A PCI-X expansion card can generally connect 2-3 PCI-X cards Connect to the motherboard. The circuit board of the PCI-X expansion card generally includes a slot for inserting the PCI-X card and a voltage conversion circuit. The voltage conversion circuit is used to output multiple voltages (such as +3.3V voltage, +5V voltage, +12V voltage and -12V voltage) to the corresponding pin of the socket. [0003] The voltage output ends of the voltage conversion circuit are generally connected to the pins of the socket through copper foil traces on the circuit board. At present, when testing the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/40G01R1/04
CPCH05K1/181G01R31/40H05K1/0213G01R31/2808
Inventor 潘亚军葛婷
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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