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Short circuit detection method and device

A technology of short-circuit detection and short-circuit status, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., and can solve problems such as low safety and poor connector effect

Active Publication Date: 2014-07-23
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a short circuit detection method and device to solve the problems in the prior art that the effect of the short circuit test on the connector is poor and the safety is low

Method used

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  • Short circuit detection method and device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, it is a schematic flow chart of the short-circuit detection method described in Embodiment 1 of the present invention. The short-circuit detection method can be applied to any connector that does not have a ground pin; specifically, the short-circuit detection method can include the following step:

[0034] Step 101: For any connector that does not have a ground pin, input a high level signal to the first floating pin of the female header module of the connector, and detect the second floating pin of the female header module Whether the signal at the pin end is a high-level signal, if so, execute step 102, otherwise, execute step 103.

[0035] Specifically, in the first embodiment of the present invention, in order to avoid the interference of other circuit signals in the connector when short-circuit detection of the connector is performed, any floating pin of the female header module of the connector needs to be Input a detection signal (us...

Embodiment 2

[0045] Based on a principle similar to the short-circuit detection method described in Embodiment 1 of the present invention, Embodiment 2 of the present invention provides a short-circuit detection method applicable to any connector with a ground pin end, such as figure 2 As shown, it is a schematic flow chart of the short-circuit detection method described in Embodiment 2 of the present invention, and the short-circuit detection method may include the following steps:

[0046] Step 201: For any connector with a ground pin, input a high-level signal to a voltage dividing unit connected to any non-ground floating pin of the female module of the connector, and detect the Whether the signal at the non-grounded floating pin is a high-level signal, if not, execute step 202, and if yes, execute step 203.

[0047] Specifically, in the second embodiment of the present invention, since each connector is a connector with a grounding pin, when the connector is in a short-circuit state,...

Embodiment 3

[0057] Embodiment 3 of the present invention provides a short-circuit detection device applicable to any connector without a ground pin. The short-circuit detection device can be applied to the short-circuit detection method described in Embodiment 1 of the present invention. Specifically ground, such as image 3 As shown, it is a schematic structural diagram of the short-circuit detection device described in Embodiment 3 of the present invention. The short-circuit detection device may include a detection unit 11 and a detection unit 12, wherein:

[0058] The detection unit 11 is configured to input a high-level signal to a first floating pin (Non Connected pin1, NC pin1) of a female module of the connector for any connector without a grounding pin.

[0059] The detection unit 12 is used to detect whether the signal at the second floating pin end (Non Connected pin2, NC pin2) of the female header module of the connector is a high level signal, and if so, determine the connecti...

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Abstract

The invention discloses a short circuit detection method and device. The method comprises that: as for any one connector without grounding pin end, one high level signal is inputted to a first suspending pin end of a female head module of the connector, and whether the signal of a second suspending pin end of the female head module is the high level signal is detected, if the detection result is yes, the connector is in the short circuit state through confirmation, and the signal between female head and male head modules is isolated; or as for any one connector with the grounding pin end, one high level signal is inputted to a voltage-dividing unit which is connected with any one non-grounding suspending pin end of the female head module of the connector, and whether the signal of the non-grounding suspending pin end is the high level signal is detected, if the detection result is no, the connector is in the short circuit state through confirmation, and the signal between the female head module and the male head module is isolated. Detection of short circuit between the modules of the connector can be relatively simply realized via the scheme. Besides, a module protection function can be realized when the connector is in the short circuit state so that simplification and safety of short circuit detection are enhanced.

Description

technical field [0001] The invention relates to the technical field of circuit detection, in particular to a short circuit detection method and device. Background technique [0002] Connectors are commonly used electronic components in the field of electronic engineering technology. They are used to bridge communication between isolated circuits or blocked places in circuits, so as to achieve the effect of allowing current to flow and achieving predetermined functions. Specifically, in the prior art, since the application object, application frequency, application power and application environment of the connector are different, there are many connectors with different forms and structures, such as for FPC (Flexible Printed Circuit (Flexible Circuit Board) is the golden finger part that connects the memory stick and the memory slot, and the commonly used connecting parts with pin-shaped male head and socket-shaped female head. [0003] Specifically, in practical application...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
Inventor 林丹
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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