CN219122339U - Detection device and equipment - Google Patents

Abstract

The application relates to a detection device and equipment relates to electron technical field, and this detection device includes: the device comprises a power supply module, a voltage stabilizing control circuit module, a voltmeter detection module, a current limiting circuit module and a diode to be tested; the input end of the voltage stabilizing control circuit module is electrically connected with the output end of the power supply module and the input end of the current limiting circuit module, and the output end of the voltage stabilizing control circuit module is electrically connected with the voltage input end of the voltmeter detection module; the first detection end of the voltmeter detection module is electrically connected with the output end of the current limiting circuit module and the first end of the diode to be detected, and the second detection end of the voltmeter detection module is electrically connected with the second end of the diode to be detected, so that the accurate detection of the diode can be realized through the detection device, and the operation is simple and convenient.

Description

Detection device and equipment

Technical Field

The application relates to the field of electronic technology, in particular to a detection device and equipment.

Background

At present, the incoming material detection of the zener diode needs to be carried out by professional technicians and special equipment, the detection cost is high, and the operation difficulty is high. The appearance, color and size of the zener diode materials used on the main board and the power panel of the movement production can not be identified subjectively, and the zener diode materials can only be identified from the original package of the materials.

Therefore, when operators cannot recognize the voltage stabilizing value of the voltage stabilizing diode through appearance and the detection cost is high, the situation that the voltage stabilizing diode is used by mistake and mixed is easily caused, so that the performance of the produced product does not accord with the standard, quality accidents are caused, and the problem of market complaints is caused.

Disclosure of Invention

The application provides a detection device to solve the detection cost height that zener diode detected among the prior art, the big problem of the operation degree of difficulty.

In a first aspect, the present application provides a detection device, comprising: the device comprises a power supply module, a voltage stabilizing control circuit module, a voltmeter detection module, a current limiting circuit module and a diode to be tested;

the input end of the voltage stabilizing control circuit module is electrically connected with the output end of the power supply module and the input end of the current limiting circuit module, and the output end of the voltage stabilizing control circuit module is electrically connected with the voltage input end of the voltmeter detection module;

the first detection end of the voltmeter detection module is electrically connected with the output end of the current limiting circuit module and the first end of the diode to be detected, and the second detection end of the voltmeter detection module is electrically connected with the second end of the diode to be detected.

Optionally, the voltage stabilizing control circuit module includes: a voltage stabilizing unit and a voltage stabilizing control unit;

the first end of the voltage stabilizing unit is electrically connected with the output end of the power supply module and the input end of the current limiting circuit module, the second end of the voltage stabilizing unit is electrically connected with the first end of the voltage stabilizing control unit, and the third end of the voltage stabilizing unit is electrically connected with the second end of the voltage stabilizing control unit;

the output end of the voltage stabilizing control unit is electrically connected with the voltage input end of the voltmeter detection module, and the third end of the voltage stabilizing control unit is connected with the second detection end of the voltmeter detection module.

Optionally, the voltage stabilizing unit includes: the first end of the first resistor is electrically connected with the first end of the first transistor and the input end of the current limiting circuit module, the second end of the first resistor is electrically connected with the control end of the first transistor and the second end of the voltage stabilizing control unit, and the second end of the first transistor is electrically connected with the first end of the voltage stabilizing control unit;

the voltage stabilizing control unit includes: the second transistor, the second resistor, the third resistor, the fourth resistor, the variable resistor and the zener diode;

the first end of the second transistor is electrically connected with the second end of the first resistor and the control end of the first transistor, the second end of the second transistor is electrically connected with the second end of the second resistor and the cathode of the zener diode, and the control end of the second transistor is electrically connected with the second end of the variable resistor and the third end of the variable resistor;

the first end of the second resistor is electrically connected with the first end of the third resistor and the voltage input end of the voltmeter detection module, the second end of the third resistor is electrically connected with the first end of the variable resistor, the second end of the variable resistor is electrically connected with the first end of the fourth resistor, and the second end of the fourth resistor is electrically connected with the positive electrode of the zener diode.

Optionally, the voltage stabilizing control circuit module further includes: an input voltage stabilizing and filtering unit and an output voltage stabilizing and filtering unit;

the first end of the input voltage stabilizing filter unit is electrically connected with the first end of the first transistor, the first end of the output voltage stabilizing filter unit is electrically connected with the second end of the first transistor and the first end of the third resistor, and the second end of the input voltage stabilizing filter unit and the second end of the output voltage stabilizing filter unit are electrically connected with the reference ground of the detection device.

Optionally, the input voltage stabilizing and filtering unit comprises a first capacitor, and the output voltage stabilizing and filtering unit comprises a second capacitor;

the first end of the first transistor is electrically connected with the reference through the first capacitor, and the second end of the first transistor is electrically connected with the reference through the second capacitor.

Optionally, the detection device further includes: a prompting circuit module;

the first input end of the prompt circuit module is electrically connected with the input end of the current limiting circuit module, and the second input end of the prompt circuit module is electrically connected with the first end of the diode to be tested;

the prompting circuit module is used for outputting detection prompting information corresponding to the diode to be detected according to the voltage of the input end of the current limiting circuit module and the voltage of the first end of the diode to be detected.

Optionally, the prompting circuit module includes: fifth resistor, voltage comparator, sixth resistor, luminescent diode;

the first input end of the voltage comparator is electrically connected with the input end of the current limiting circuit module through the fifth resistor, the second input end of the voltage comparator is electrically connected with the first end of the diode to be tested and the output end of the current limiting circuit module, the output end of the voltage comparator is electrically connected with the anode of the light emitting diode through the sixth resistor, and the cathode of the light emitting diode is electrically connected with the second end of the diode to be tested.

Optionally, the current limiting circuit module includes a seventh resistor and an eighth resistor;

the first end of the seventh resistor is electrically connected with the input end of the voltage stabilizing control circuit module and the output end of the power supply module, the second end of the seventh resistor is electrically connected with the first end of the eighth resistor, and the second end of the eighth resistor is electrically connected with the first detection end of the voltmeter detection module and the first end of the diode to be detected;

the voltmeter detection module comprises: the first detection end of the digital voltmeter is electrically connected with the first end of the diode to be detected, the second detection end of the digital voltmeter is electrically connected with the second end of the diode to be detected, and the voltage input end of the digital voltmeter is electrically connected with the output end of the voltage stabilizing control circuit module.

Optionally, the power module includes: a transformer and a rectifier bridge unit;

the first end of the transformer is electrically connected with the first end of the alternating current power supply, the second end of the transformer is electrically connected with the second end of the alternating current power supply, the third end of the transformer is electrically connected with the first end of the rectifier bridge unit, and the fourth end of the transformer is electrically connected with the second end of the rectifier bridge unit;

the third end of the rectifier bridge unit is electrically connected with the second detection end of the voltmeter detection module, the voltage reference end of the voltage stabilizing control circuit module and the second end of the diode to be detected, and the fourth end of the rectifier bridge unit is electrically connected with the input end of the voltage stabilizing control circuit module and the first end of the seventh resistor.

In a second aspect, the present application provides a detection apparatus, comprising a detection device according to any one of the embodiments of the first aspect.

The input end of the voltage stabilizing control circuit module is electrically connected with the output end of the power supply module and the input end of the current limiting circuit module, and the output end of the voltage stabilizing control circuit module is electrically connected with the voltage input end of the voltmeter detection module; the first detection end of the voltmeter detection module is electrically connected with the output end of the current limiting circuit module and the first end of the diode to be detected, and the second detection end of the voltmeter detection module is electrically connected with the second end of the diode to be detected, so that the accurate detection of the diode can be realized through the detection device, and the operation is simple and convenient.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a detection device according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a detecting device according to an alternative embodiment of the present application;

fig. 3 is a schematic structural diagram of a detection device according to another alternative embodiment of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.

Fig. 1 is a schematic structural diagram of a detection device provided in an embodiment of the present application, as shown in fig. 1, a detection device in an embodiment of the present application includes: the power supply module 10, the voltage stabilizing control circuit module 20, the voltmeter detection module 30, the current limiting circuit module 40 and the diode 50 to be tested; the input end of the voltage stabilizing control circuit module 20 is electrically connected with the output end of the power supply module 10 and the input end of the current limiting circuit module 40, and the output end of the voltage stabilizing control circuit module 20 is electrically connected with the voltage input end of the voltmeter detection module 30; the first detection end of the voltmeter detection module 30 is electrically connected with the output end of the current limiting circuit module 40 and the first end of the diode 50 to be detected, and the second detection end of the voltmeter detection module 30 is electrically connected with the second end of the diode 50 to be detected.

Specifically, in the embodiment of the present application, the input end of the voltage stabilizing control circuit module 20 is electrically connected to the output end of the power module 10 and the input end of the current limiting circuit module 40, and the output end of the voltage stabilizing control circuit module 20 is electrically connected to the voltage input end of the voltmeter detection module 30, so that the voltage stabilizing control circuit module 20 can output a stable power supply voltage signal to the voltmeter detection module 30 based on the power supply signal output by the power module 10, so as to supply power to the voltmeter detection module 30, ensure that the voltmeter detection module 30 can normally display, and the first detection end of the voltmeter detection module 30 is electrically connected to the output end of the current limiting circuit module 40 and the first end of the diode 50 to be detected, and the second detection end of the voltmeter detection module 30 is electrically connected to the second end of the diode 50 to be detected, so that the voltmeter detection module 30 can display no-load voltage when not connected to the diode 50 to be detected, and display a voltage value corresponding to the diode 50 to be detected when detecting the diode 50 to be detected, thereby realizing detection of the diode 50 to be detected.

As can be seen, in the embodiment of the present application, the input end of the voltage stabilizing control circuit module 20 is electrically connected to the output end of the power module 10 and the input end of the current limiting circuit module 40, and the output end of the voltage stabilizing control circuit module 20 is electrically connected to the voltage input end of the voltmeter detection module 30; the first detection end of the voltmeter detection module 30 is electrically connected with the output end of the current limiting circuit module 40 and the first end of the diode 50 to be detected, and the second detection end of the voltmeter detection module 30 is electrically connected with the second end of the diode 50 to be detected, so that the detection of the diode 50 to be detected is realized, the operation is simple and convenient, the cost is low, the detection by detection staff in the production process is facilitated, and the accuracy of materials in the production process is further ensured.

Fig. 2 is a schematic structural diagram of a detection device according to an alternative embodiment of the present application, and optionally, as shown in fig. 2, a voltage stabilizing control circuit module 20 in the embodiment of the present application includes: a voltage stabilizing unit 21 and a voltage stabilizing control unit 22; wherein a first end of the voltage stabilizing unit 21 is electrically connected to an output end of the power module 10 and an input end of the current limiting circuit module 40, a second end of the voltage stabilizing unit 21 is electrically connected to a first end of the voltage stabilizing control unit 22, and a third end of the voltage stabilizing unit 21 is electrically connected to a second end of the voltage stabilizing control unit 22; the output end of the voltage stabilizing control unit 22 is electrically connected with the voltage input end of the voltmeter detection module 30, and the third end of the voltage stabilizing control unit 22 is connected with the second detection end of the voltmeter detection module 30.

Specifically, in this embodiment, the first end of the voltage stabilizing unit 21 is electrically connected to the output end of the power module 10 and the input end of the current limiting circuit module 40, the second end of the voltage stabilizing unit 21 is electrically connected to the first end of the voltage stabilizing control unit 22, and the third end of the voltage stabilizing unit 21 is electrically connected to the second end of the voltage stabilizing control unit 22, so that the voltage stabilizing unit 21 can provide a power supply signal to the voltage stabilizing control unit 22 based on the power supply signal provided by the power module 10, and the output end of the voltage stabilizing control unit 22 is electrically connected to the voltage input end of the voltmeter detection module 30, and the third end of the voltage stabilizing control unit 22 is electrically connected to the second detection end of the voltmeter detection module 30, so that the voltage stabilizing control unit 22 can output a stable power supply voltage signal to the voltmeter detection module 30 based on the power supply signal provided by the voltage stabilizing unit 21, so that the voltmeter detection unit can work according to the power supply voltage signal, thereby realizing the voltage value detection of the diode 50 to be detected.

Further, as shown in fig. 3, the voltage stabilizing unit 21 in the embodiment of the present application includes: the first resistor R1 and the first transistor Q1, wherein a first end of the first resistor R1 is electrically connected to a first end of the first transistor Q1 and an input end of the current limiting circuit module 40, a second end of the first resistor R1 is electrically connected to a control end of the first transistor Q1 and a second end of the voltage stabilizing control unit 22, and a second end of the first transistor Q1 is electrically connected to a first end of the voltage stabilizing control unit 22.

Specifically, in the embodiment of the present application, the first end of the first resistor R1 is electrically connected to the first end of the first transistor Q1 and the input end of the current limiting circuit module 40, the second end of the first resistor R1 is electrically connected to the control end of the first transistor Q1 and the second end of the voltage stabilizing control unit 22, and the second end of the first transistor Q1 is electrically connected to the first end of the voltage stabilizing control unit 22, so that the power signal provided by the power module 10 is provided to the first transistor Q1 through the first resistor R1 to supply power to the control end of the first transistor Q1, so that the first transistor Q1 can be turned on based on the power signal provided by the first resistor R1.

Optionally, the voltage stabilizing control unit 22 in the embodiment of the present application includes: a second transistor Q2, a second resistor R2, a third resistor R3, a fourth resistor R4, a variable resistor R, and a zener diode ZD; the first end of the second transistor Q2 is electrically connected to the second end of the first resistor R1 and the control end of the first transistor Q1, the second end of the second transistor Q2 is electrically connected to the second end of the second resistor R2 and the negative electrode of the zener diode ZD, and the control end of the second transistor Q2 is electrically connected to the second end of the variable resistor R and the third end of the variable resistor R; the first end of the second resistor R2 is electrically connected to the first end of the third resistor R3 and the voltage input end of the voltmeter detection module 30, the second end of the third resistor R3 is electrically connected to the first end of the variable resistor R, the second end of the variable resistor R is electrically connected to the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is electrically connected to the positive electrode of the zener diode ZD.

Specifically, in the embodiment of the present application, the first end of the second transistor Q2 is electrically connected to the second end of the first resistor R1 and the control end of the first transistor Q1, the second end of the second transistor Q2 is electrically connected to the second end of the second resistor R2 and the negative electrode of the zener diode ZD, and the control end of the second transistor Q2 is electrically connected to the second end of the variable resistor R and the third end of the variable resistor R, so that the second transistor Q2 can be regulated by the variable resistor R, and a problem voltage signal is provided to the control end of the first transistor Q1, so that the second end of the first transistor Q1 can output a stable supply voltage signal to the voltmeter detection module 30, so that the voltmeter detection module 30 can work normally.

In addition, the first end of the second resistor R2 is electrically connected to the first end of the third resistor R3 and the voltage input end of the voltmeter detection module 30 to regulate the output voltage of the first transistor Q1, the second end of the third resistor R3 is electrically connected to the first end of the variable resistor R, the second end of the variable resistor R is electrically connected to the first end of the fourth resistor R4, and the second end of the fourth resistor R4 is electrically connected to the positive electrode of the zener diode ZD to limit the current of the variable resistor R through the third resistor R3 and the fourth resistor R4.

The problem voltage signal is a voltage signal for controlling the voltage of the control terminal of the first transistor Q1 to keep stable; the second resistor R2 may be an output adjusting resistor; the third resistor R3 and the fourth resistor R4 may be limiting resistors, which are not particularly limited in the embodiment of the present application.

Optionally, the voltage stabilizing control circuit module 20 in the embodiment of the present application further includes: an input voltage stabilizing and filtering unit 23 and an output voltage stabilizing and filtering unit 24; the first end of the input voltage stabilizing filter unit 23 is electrically connected to the first end of the first transistor Q1, the first end of the output voltage stabilizing filter unit 24 is electrically connected to the second end of the first transistor Q1 and the first end of the third resistor R3, and the second end of the input voltage stabilizing filter unit 23 and the second end of the output voltage stabilizing filter unit 24 are electrically connected to the reference ground of the detection device.

Specifically, the first end of the input voltage stabilizing and filtering unit 23 is electrically connected to the first end of the first transistor Q1, so that the input dc filtering can be performed by the voltage stabilizing and filtering unit, and the first end of the output voltage stabilizing and filtering unit 24 is electrically connected to the second end of the first transistor Q1 and the first end of the third resistor R3, so that the output filtering can be performed by the output voltage stabilizing and filtering unit 24.

Further, the input voltage stabilizing filter unit 23 in the embodiment of the present application includes a first capacitor C1, and the output voltage stabilizing filter unit 24 includes a second capacitor C2; the first end of the first transistor Q1 is electrically connected to the reference through the first capacitor C1, and the second end of the first transistor Q1 is electrically connected to the reference through the second capacitor C2.

Specifically, in the embodiment of the application, the first end of the first transistor Q1 is electrically connected to the reference ground through the first capacitor C1 to filter the input voltage of the first transistor Q1 through the first capacitor C1, and the second end of the first transistor Q1 is electrically connected to the reference ground through the second capacitor C2 to filter the output voltage of the first transistor Q1 through the second capacitor C2.

Fig. 3 is a schematic diagram of a detection device according to another alternative embodiment of the present application, optionally, as shown in fig. 3, the detection device further includes: a prompt circuit module 60; wherein, a first input end of the prompt circuit module 60 is electrically connected with an input end of the current limiting circuit module 40, and a second input end of the prompt circuit module 60 is electrically connected with a first end of the diode 50 to be tested; the prompting circuit module 60 is configured to output detection prompting information corresponding to the to-be-detected diode 50 according to the voltage of the input end of the current limiting circuit module 40 and the voltage of the first end of the to-be-detected diode 50.

Specifically, in the embodiment of the present application, the first input end of the prompting circuit module 60 is electrically connected to the input end of the current limiting circuit module 40, and the second input end of the prompting circuit module 60 is electrically connected to the first end of the diode 50 to be tested, so that the prompting circuit can output the detection prompting information corresponding to the diode 50 to be tested according to the voltage of the input end of the current limiting circuit module 40 and the voltage of the first end of the diode 50 to be tested, so as to prompt the user whether the diode 50 to be tested is in good contact.

Further, the prompt circuit module 60 in the embodiment of the present application may specifically include: a fifth resistor R5, a voltage comparator A, a sixth resistor R6 and a light emitting diode D; the first input end of the voltage comparator a is electrically connected to the input end of the current limiting circuit module 40 through the fifth resistor R5, the second input end of the voltage comparator a is electrically connected to the first end of the diode 50 to be tested and the output end of the current limiting circuit module 40, the output end of the voltage comparator a is electrically connected to the anode of the light emitting diode D through the sixth resistor R6, and the cathode of the light emitting diode is electrically connected to the second end of the diode 50 to be tested.

Specifically, in the embodiment of the present application, the first input end of the voltage comparator a is electrically connected to the input end of the current limiting circuit module 40 through the fifth resistor R5, the second input end of the voltage comparator a is electrically connected to the first end of the diode 50 to be tested and the output end of the current limiting circuit module 40, the output end of the voltage comparator a is electrically connected to the anode of the light emitting diode D through the sixth resistor R6, so that the voltage at the input end of the current limiting circuit module 40 can be sampled, the sampled voltage is provided to the forward input end of the voltage comparator a through the fifth resistor R5, the voltage at the first end of the diode 50 to be tested is provided to the reverse input end of the voltage comparator a, so that the voltage comparator a can compare the sampled voltage with the voltage at the first end of the diode 50 to be tested to generate a comparison output signal, and the comparison output signal is provided to the light emitting diode D through the sixth resistor R6, so that the light emitting diode D can emit light according to the comparison output signal, and whether the diode 50 to be tested has good contact or not is prompted to a user.

As an example of the present application, in a case where the diode 50 to be measured is in good contact, the voltage of the reverse input terminal of the voltage comparator a is reduced, and at this time, the voltage value of the voltage signal of the reverse input terminal of the voltage comparator a is smaller than the voltage value of the forward input terminal, the voltage comparator a outputs an output signal of a high level, and the light emitting diode D emits light based on the output signal. When the contact of the diode 50 to be tested is poor, the voltage input by the reverse input end of the voltage comparator A is increased, at this time, the voltage comparator A outputs a low-level output signal, and the light emitting diode D is not on, so that a user can be reminded of whether the contact of the diode 50 to be tested is good, and the detection efficiency of the diode 50 to be tested is improved.

Optionally, the current limiting circuit module 40 in the embodiment of the present application includes a seventh resistor R7 and an eighth resistor R8; the first end of the seventh resistor R7 is electrically connected to the input end of the voltage stabilizing control circuit module 20 and the output end of the power module 10, the second end of the seventh resistor R7 is electrically connected to the first end of the eighth resistor R8, and the second end of the eighth resistor R8 is electrically connected to the first detection end of the voltmeter detection module 30 and the first end of the diode 50 to be tested.

Specifically, in the embodiment of the present application, the first end of the seventh resistor R7 is electrically connected to the input end of the voltage stabilizing control circuit module 20 and the output end of the power module 10, the second end of the seventh resistor R7 is electrically connected to the first end of the eighth resistor R8, and the second end of the eighth resistor R8 is electrically connected to the first detection end of the voltmeter detection module 30 and the first end of the diode 50 to be detected, so that current can be limited by the seventh resistor R7 and the eighth resistor R8, so that the problem that one of the resistors is abnormal to cause excessive current and further damage to the diode 50 to be detected is avoided.

Optionally, the voltmeter detection module 30 in the embodiment of the present application includes: the first detection end of the digital voltmeter V is electrically connected with the first end of the diode 50 to be tested, the second detection end of the digital voltmeter V is electrically connected with the second end of the diode 50 to be tested, and the voltage input end of the digital voltmeter V is electrically connected with the output end of the voltage stabilizing control circuit module 20, so that the digital voltmeter V can work according to the stable power supply voltage signal output by the voltage stabilizing control current module, no-load voltage is displayed when the diode 50 to be tested is not connected, and the voltage value of the diode 50 to be tested is directly displayed when the diode 50 to be tested is connected, so that a user can judge whether the diode 50 to be tested meets the use requirement through the voltage value of the diode 50 to be tested displayed by the digital voltmeter V.

The two ends of the digital voltmeter V can be connected with the diode 50 to be tested through a test pen or a self-made pluggable fixture, so that the actual use and detection can be facilitated; the power supply voltage signal may be a direct current voltage signal of 12 volts (Volt, V), or may be another voltage signal that meets the power supply requirement of the digital voltmeter V, which is not particularly limited in the embodiment of the present application.

Therefore, the voltage value of the diode 50 to be measured can be determined by the voltmeter according to the embodiment of the application, whether the voltage value is in the convenient range of Ma Nu working requirements or not is easy and convenient to operate, detection is convenient, and the accuracy of materials in the production process is further guaranteed.

Optionally, the power module 10 in the embodiment of the present application includes: a transformer T and a rectifier bridge unit 11; the first end of the transformer T is electrically connected with the first end of the ac power supply, the second end of the transformer T is electrically connected with the second end of the ac power supply, the third end of the transformer T is electrically connected with the first end of the rectifier bridge unit 11, and the fourth end of the transformer T is electrically connected with the second end of the rectifier bridge unit 11; the third terminal of the rectifier bridge unit 11 is electrically connected to the second detection terminal of the voltmeter detection module 30, the voltage reference terminal of the voltage stabilizing control circuit module 20, and the second terminal of the diode 50 to be tested, and the fourth terminal of the rectifier bridge unit 11 is electrically connected to the input terminal of the voltage stabilizing control circuit module 20 and the first terminal of the seventh resistor R7.

Specifically, in this embodiment, the first end of the transformer T is electrically connected to the first end of the ac power supply, the second end of the transformer T is electrically connected to the second end of the ac power supply, the third end of the transformer T is electrically connected to the first end of the rectifier bridge unit 11, the fourth end of the transformer T is electrically connected to the second end of the rectifier bridge unit 11, so that the transformer T can transform the ac signal provided by the ac power supply and provide the transformed output signal to the rectifier bridge unit 11, and the third end of the rectifier bridge unit 11 is electrically connected to the second detection end of the voltmeter detection module 30, the voltage reference end of the voltage stabilizing control circuit module 20 and the second end of the diode 50 to be tested, and the fourth end of the rectifier bridge unit 11 is electrically connected to the input end of the voltage stabilizing control circuit module 20 and the first end of the seventh resistor R7, so that the rectifier bridge can rectify the ac signal and output the voltage stabilizing signal to the voltage stabilizing control circuit module 20 and the current limiting circuit module 40, and the current limiting circuit module 40. The alternating current power supply signal can be 220V mains supply or alternating current voltage with other voltage values; the voltage-variable output signal may be an ac signal of 35V, or may be another voltage signal meeting the working requirement of the diode 50 to be tested, for example, a dc signal of 35V, which is not particularly limited in the embodiment of the present application. Wherein the rectifier bridge unit may include: the first diode, the second diode, the third diode and the fourth diode are not particularly limited in this embodiment.

It should be noted that, the diode 50 to be tested in the embodiment of the present application may be the zener diode ZD, or may be the light emitting diode D or other diodes.

For example, the detection device in the embodiment of the present application may be used to detect the zener diode ZD, for example, may detect a voltage stabilizing value of the zener diode ZD, so as to determine whether the zener diode ZD meets the production standard, and ensure boring accuracy.

In addition, the detection device in the embodiment of the present application may be used for detecting the positive electrode or the negative electrode of the light emitting diode D, if the second end of the eighth resistor R8 is connected to the positive electrode of the light emitting diode D, the light emitting diode D emits light, and if the second end of the eighth resistor R8 is connected to the negative electrode of the light emitting diode D, the light emitting diode D does not emit light.

In addition, the detection device in the embodiment of the present application may be further configured to detect a material of the diode, where, when the anode of the diode 50 to be detected is electrically connected to the second end of the eighth resistor R8, if the material of the diode 50 to be detected is silicon, a voltage corresponding to the diode displayed by the digital voltmeter V is about 0.7V, if the material of the diode 50 to be detected is germanium, a voltage corresponding to the diode displayed by the digital voltmeter V is about 0.3V, and if the cathode of the diode 50 to be detected is electrically connected to the second end of the eighth resistor R8, the digital voltmeter V still displays an idle voltage.

Therefore, the embodiment of the application can avoid the problems of circuit performance and quality of the production product by detecting the voltage of the diode 50 to be detected, ensure the accuracy of the material, and avoid the problems of secondary back attack and cost waste caused by the error of the material.

In summary, in the embodiment of the present application, the input end of the voltage stabilizing control circuit module 20 is electrically connected to the output end of the power module 10 and the input end of the current limiting circuit module 40, and the output end of the voltage stabilizing control circuit module 20 is electrically connected to the voltage input end of the voltmeter detection module 30; the first detection end of the voltmeter detection module 30 is electrically connected with the output end of the current limiting circuit module 40 and the first end of the diode 50 to be detected, and the second detection end of the voltmeter detection module 30 is electrically connected with the second end of the diode 50 to be detected, so that the detection of the diode 50 to be detected is realized, the accurate detection of the diode can be realized through the detection device, the operation is simple and convenient, the detection personnel can conveniently judge the material performance of the diode, and the material accuracy is ensured.

Further, the embodiment of the application also provides a detection device, which comprises the detection device of any embodiment.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A detection apparatus, characterized by comprising: the device comprises a power supply module, a voltage stabilizing control circuit module, a voltmeter detection module, a current limiting circuit module and a diode to be tested;

the input end of the voltage stabilizing control circuit module is electrically connected with the output end of the power supply module and the input end of the current limiting circuit module, and the output end of the voltage stabilizing control circuit module is electrically connected with the voltage input end of the voltmeter detection module;

the first detection end of the voltmeter detection module is electrically connected with the output end of the current limiting circuit module and the first end of the diode to be detected, and the second detection end of the voltmeter detection module is electrically connected with the second end of the diode to be detected.

2. The apparatus according to claim 1, wherein the voltage stabilizing control circuit module includes: a voltage stabilizing unit and a voltage stabilizing control unit;

the first end of the voltage stabilizing unit is electrically connected with the output end of the power supply module and the input end of the current limiting circuit module, the second end of the voltage stabilizing unit is electrically connected with the first end of the voltage stabilizing control unit, and the third end of the voltage stabilizing unit is electrically connected with the second end of the voltage stabilizing control unit;

the output end of the voltage stabilizing control unit is electrically connected with the voltage input end of the voltmeter detection module, and the third end of the voltage stabilizing control unit is connected with the second detection end of the voltmeter detection module.

3. The detecting device according to claim 2, wherein,

the voltage stabilizing unit includes: the first end of the first resistor is electrically connected with the first end of the first transistor and the input end of the current limiting circuit module, the second end of the first resistor is electrically connected with the control end of the first transistor and the second end of the voltage stabilizing control unit, and the second end of the first transistor is electrically connected with the first end of the voltage stabilizing control unit;

the voltage stabilizing control unit includes: the second transistor, the second resistor, the third resistor, the fourth resistor, the variable resistor and the zener diode;

the first end of the second transistor is electrically connected with the second end of the first resistor and the control end of the first transistor, the second end of the second transistor is electrically connected with the second end of the second resistor and the cathode of the zener diode, and the control end of the second transistor is electrically connected with the second end of the variable resistor and the third end of the variable resistor;

the first end of the second resistor is electrically connected with the first end of the third resistor and the voltage input end of the voltmeter detection module, the second end of the third resistor is electrically connected with the first end of the variable resistor, the second end of the variable resistor is electrically connected with the first end of the fourth resistor, and the second end of the fourth resistor is electrically connected with the positive electrode of the zener diode.

4. The detection apparatus according to claim 3, wherein the voltage stabilization control circuit module further comprises: an input voltage stabilizing and filtering unit and an output voltage stabilizing and filtering unit;

the first end of the input voltage stabilizing filter unit is electrically connected with the first end of the first transistor, the first end of the output voltage stabilizing filter unit is electrically connected with the second end of the first transistor and the first end of the third resistor, and the second end of the input voltage stabilizing filter unit and the second end of the output voltage stabilizing filter unit are electrically connected with the reference ground of the detection device.

5. The detecting device according to claim 4, wherein the input voltage stabilizing filter unit includes a first capacitor, and the output voltage stabilizing filter unit includes a second capacitor;

the first end of the first transistor is electrically connected with the reference through the first capacitor, and the second end of the first transistor is electrically connected with the reference through the second capacitor.

6. The detection apparatus according to claim 1, characterized by further comprising: a prompting circuit module;

the first input end of the prompt circuit module is electrically connected with the input end of the current limiting circuit module, and the second input end of the prompt circuit module is electrically connected with the first end of the diode to be tested;

the prompting circuit module is used for outputting detection prompting information corresponding to the diode to be detected according to the voltage of the input end of the current limiting circuit module and the voltage of the first end of the diode to be detected.

7. The detection apparatus according to claim 6, wherein the alert circuit module includes: fifth resistor, voltage comparator, sixth resistor, luminescent diode;

the first input end of the voltage comparator is electrically connected with the input end of the current limiting circuit module through the fifth resistor, the second input end of the voltage comparator is electrically connected with the first end of the diode to be tested and the output end of the current limiting circuit module, the output end of the voltage comparator is electrically connected with the anode of the light emitting diode through the sixth resistor, and the cathode of the light emitting diode is electrically connected with the second end of the diode to be tested.

8. The detection apparatus according to claim 1, wherein the current limiting circuit module includes a seventh resistor and an eighth resistor;

the first end of the seventh resistor is electrically connected with the input end of the voltage stabilizing control circuit module and the output end of the power supply module, the second end of the seventh resistor is electrically connected with the first end of the eighth resistor, and the second end of the eighth resistor is electrically connected with the first detection end of the voltmeter detection module and the first end of the diode to be detected;

the voltmeter detection module comprises: the first detection end of the digital voltmeter is electrically connected with the first end of the diode to be detected, the second detection end of the digital voltmeter is electrically connected with the second end of the diode to be detected, and the voltage input end of the digital voltmeter is electrically connected with the output end of the voltage stabilizing control circuit module.

9. The detection apparatus according to claim 8, wherein the power supply module includes: a transformer and a rectifier bridge unit;

the first end of the transformer is electrically connected with the first end of the alternating current power supply, the second end of the transformer is electrically connected with the second end of the alternating current power supply, the third end of the transformer is electrically connected with the first end of the rectifier bridge unit, and the fourth end of the transformer is electrically connected with the second end of the rectifier bridge unit;

the third end of the rectifier bridge unit is electrically connected with the second detection end of the voltmeter detection module, the voltage reference end of the voltage stabilizing control circuit module and the second end of the diode to be detected, and the fourth end of the rectifier bridge unit is electrically connected with the input end of the voltage stabilizing control circuit module and the first end of the seventh resistor.

10. A detection apparatus comprising a detection device according to any one of claims 1 to 9.

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