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Resistor pack condition detecting device

A detection device, good or bad technology, applied in the field of electronics, can solve problems such as difficulty in detection of exclusion, and achieve the effect of fast and accurate detection

Pending Publication Date: 2018-07-06
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the present invention provides a good or bad detection device for exclusion, which is used to solve the problem that it is difficult to detect the quality of exclusion, and can automatically, quickly, accurately and intuitively detect the resistance of specific pins in exclusion good or bad situation

Method used

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  • Resistor pack condition detecting device

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Embodiment 1

[0021] Embodiment 1: as figure 1 As shown, an exclusion good or bad detection device, including exclusion socket 1, combined multi-way switch circuit 2, combined multi-way switch control circuit 3, window voltage comparator 4, 555 multivibrator circuit 5, good or bad exclusion Display circuit 6; wherein combined multi-way switch control circuit 3 includes 74LS390 counter 8 and 74LS138 decoder 7; exclusion quality display circuit 6 includes 74LS194 shift register Ⅰ, 74LS194 shift register Ⅱ and LED indicator lights; The exclusion socket 1 is connected to the combined multi-way switch circuit 2, the 74LS390 counter 8, the 74LS138 decoder 7, and the combined multi-way switch circuit 2 are connected in sequence, the combined multi-way switch circuit 2, the window voltage comparator 4, and the 74LS194 shift register Ⅰ, 74LS194 shift register II, and LED indicators are connected in turn, and 555 multivibrator circuit 5 is connected to 74LS194 shift register I, 74LS194 shift register...

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Abstract

The invention belongs to the technical field of electronics and relates to a resistor pack condition detecting device. The resistor pack condition detecting device comprises a resistor pack socket, acombined multi-way switch circuit, a combined multi-way switch control circuit, a window voltage comparator, a 555 multivibrator circuit and a resistor pack condition display circuit. The combined multi-way switch control circuit comprises a 74LS390 counter and a 74LS138 decoder. The resistor pack condition display circuit comprises a 74LS194 shifting register I, a 74LS194 shifting register II andLED indicator lights. By one-by-one comparison of voltages of pins inserted into a resistor pack, conditions of the pins of the resistor pack can be directly reflected through on-off conditions of the LED indicator lights. When resistors are damaged, the corresponding LED indicator lights emit light, and accordingly conditions of specific pin resistors in the resistor pack can be automatically, quickly, accurately and directly detected, and convenience in quick and accurate detection of resistor pack conditions is achieved.

Description

technical field [0001] The invention relates to a good or bad detection device for exclusion, which belongs to the field of electronic technology. Background technique [0002] Resistance exclusion has the advantages of convenient assembly and high installation density, and has been widely used in televisions, computer motherboards, and household appliances. At present, when repairing related electrical appliances, it is necessary to test whether the resistance is good or bad. The traditional detection method is to use a multimeter to test each pin one by one. The detection accuracy is not high, and multiple detections are required, which is inefficient. Contents of the invention [0003] The technical problem to be solved by the present invention is: the present invention provides a good or bad detection device for exclusion, which is used to solve the problem that it is difficult to detect the quality of exclusion, and can automatically, quickly, accurately and intuitive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/01
CPCG01R31/013
Inventor 陈登湘李恒张国银薛晓军赵磊母德浪陈宝明谭洁
Owner KUNMING UNIV OF SCI & TECH
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