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Line detection module and testing jig provided with same

A line detection and test fixture technology, which is applied in the direction of diode test, single semiconductor device test, electrical measurement, etc., can solve the problems of unfavorable line test and high cost, and achieve the effect of high test efficiency, low cost and high accuracy

Inactive Publication Date: 2013-04-03
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

However, the cost of this kind of LED tester is relatively high, which is not conducive to the circuit test of large quantities of LEDs

Method used

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  • Line detection module and testing jig provided with same
  • Line detection module and testing jig provided with same

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] see figure 1 , the line detection module 10 of the present invention is used to detect whether the external line connection of an LED90 on the electronic product is normal. The circuit detection module 10 includes at least one logic unit 11 and a latch circuit 13. The logic unit 11 is used to detect whether the external circuit of the LED90 is normally turned on, and outputs a high level signal to the latch corresponding to the normal conduction of the LED90. Storage circuit 13, with latching circuit 13 in its internal latch corresponding to the state that this LED90 is normally turned on, the tester can judge and test whether the external circuit of LED90 is conducting by the state of latching circuit 13 latching, prevents the external circuit of LED90 The status switching of the line on and off is too fast and difficult to distinguish.

[0015] The...

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Abstract

The invention provides a line detection module, which is used for detecting whether an outer line of a light-emitting diode can be conducted normally or not. The line detection module comprises at least one logic unit and a latch circuit, wherein two input ends of the logic unit are respectively connected to an anode and a cathode of the light-emitting diode, and an output end of the logic unit is connected with the latch circuit; the logic unit outputs a signal to the latch circuit in a manner of corresponding to the conduction of the corresponding light-emitting diode, so as to trigger the latch circuit to latch a conducted state corresponding to the outer line of the light-emitting diode; and therefore, a tester can conveniently determine the conduction of the outer line of the light-emitting diode through the latching state of the latch circuit. The invention further provides a testing jig provided with the line detection module.

Description

technical field [0001] The invention relates to a circuit detection module, in particular to a circuit detection module for detecting whether the external circuit connection of LEDs is normal and a test fixture with the circuit detection module. Background technique [0002] Light-emitting diode (Light-Emitting Diode, LED), as a new type of illuminant, has been widely used in various electronic products due to its high electro-optic efficiency, small size, long life, energy saving and environmental protection. The most widely used application of semiconductor light-emitting diodes is to indicate different working states of electronic products by turning them on or off. Therefore, when the light-emitting diode is applied to an electronic device, it should be confirmed whether the external circuit connection of the light-emitting diode can be normally turned on and lit, so as to prevent it from being unable to light up due to problems other than the quality of the LED itself s...

Claims

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Application Information

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IPC IPC(8): G01R31/02
CPCG01R31/2635
Inventor 陈雄志古松国
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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