Integrated stepping motor driving circuit of fluorescence immunochromatography analyzer

Abstract

The utility model provides an integrated stepping motor driving circuit of a fluorescence immunochromatography analyzer, which comprises a single chip microcomputer U1, a stepping motor microcontroller U2 and a stepping motor P5, wherein a third pin, a fourth pin, a fifth pin and a sixth pin of the single chip microcomputer U1 are respectively connected with a 22th pin, a 21th pin, a 20th pin and an 18th pin of the stepping motor microcontroller U2; and a fifth pin, a seventh pin, an eighth pin and a tenth pin of the stepping motor microcontroller U2 are respectively connected with a first pin, a second pin, a third pin and a fourth pin of the stepping motor P5. The integrated stepping motor driving circuit of the fluorescence immunochromatography analyzer solves the problems that the existing equipment is high in cost, large in occupied volume, complex in circuit and imperfect in protection measure, and has the advantages of low cost, simple and stable circuit and high safety coefficient.

Description

Technical Field

[0001] The utility model relates to the field of immunochromatographic analysis, in particular to an integrated stepping motor driving circuit of a fluorescence immunochromatographic analyzer. Background Art

[0002] When the fluorescent immunochromatographic analyzer detects different samples, it needs to use a motor to control the movement of samples in and out of the chamber. At present, most of the fluorescent immunochromatographic analyzers on the market use motor integrated drive modules for in-and-out control, or use various MOS tubes to build motor controllers in the circuit. These solutions are relatively old and have many defects. Therefore, the use of a convenient motor drive control circuit has become an urgent need.

[0003] In the existing stepper motor control technology, the motor integrated drive control module is generally relatively expensive and occupies a relatively large volume; when various MOS tubes are built on the circuit to drive the stepper motor, the circuit is relatively complex and the protection measures are not perfect. Therefore, it is an urgent need to use a stepper motor drive circuit with low cost, simple circuit, stability and high safety factor. Utility Model Content

[0004] The main purpose of the utility model is to provide an integrated stepping motor driving circuit for a fluorescent immunochromatographic analyzer, which overcomes the above technical problems.

[0005] In order to achieve the above purpose, the utility model proposes the following technical solutions:

[0006] An integrated stepper motor drive circuit for a fluorescent immunochromatographic analyzer, comprising:

[0007] Single chip microcomputer U1, stepper motor microcontroller U2, stepper motor P5, among which:

[0008] The 3rd pin of the single-chip microcomputer U1 is connected to the 22nd pin of the stepper motor microcontroller U2, the 4th pin of the single-chip microcomputer U1 is connected to the 21st pin of the stepper motor microcontroller U2, the 5th pin of the single-chip microcomputer U1 is connected to the 20th pin of the stepper motor microcontroller U2, and the 6th pin of the single-chip microcomputer U1 is connected to the 18th pin of the stepper motor microcontroller U2;

[0009] Pin 5 of the stepper motor microcontroller U2 is connected to pin 1 of the stepper motor P5, pin 7 of the stepper motor microcontroller U2 is connected to pin 2 of the stepper motor P5, pin 8 of the stepper motor microcontroller U2 is connected to pin 3 of the stepper motor P5, and pin 10 of the stepper motor microcontroller U2 is connected to pin 4 of the stepper motor P5.

[0010] Furthermore, the first pin of the microcontroller U1 is connected to a 3.3V voltage.

[0011] Furthermore, the 2nd pin of the single chip microcomputer U1 and the 14th and 28th pins of the stepper motor microcontroller U2 are all connected to the ground.

[0012] Furthermore, the first pin and the second pin of the stepper motor microcontroller U2 are respectively connected to two ends of the capacitor Cd1.

[0013] Furthermore, the 3rd and 4th pins of the stepper motor microcontroller U2 are respectively connected to the two ends of the capacitor Cd2, and the two ends of the capacitor Cd2 are also respectively connected to the two ends of the resistor Rm1. At the same time, the 4th and 11th pins of the stepper motor microcontroller U2 are commonly connected to one end of the capacitor Cd3, and the other end of the capacitor Cd3 is connected to the ground. The 4th and 11th pins of the stepper motor microcontroller U2 are also commonly connected to the input voltage and one end of the capacitor Cd5, and the other end of the capacitor Cd5 is connected to the ground. The 4th and 11th pins of the stepper motor microcontroller U2 are commonly connected to one end of the capacitor Cd4, and the other end of the capacitor Cd4 is connected to the ground.

[0014] Furthermore, the 6th pin and the 9th pin of the stepper motor microcontroller U2 are respectively connected to one end of the resistor Rm2 and one end of the resistor Rm3, and the other end of the resistor Rm2 and the other end of the resistor Rm3 are both connected to the ground.

[0015] Furthermore, the 12th and 13th pins of the stepper motor microcontroller U2 are commonly connected to one end of the resistor Rm4 and one end of the resistor Rm5, the other end of the resistor Rm4 is connected to the 15th pin of the stepper motor microcontroller U2, and the other end of the resistor Rm5 is connected to the ground.

[0016] Further, pin 16, pin 17, pin 19, pin 24, pin 25 and pin 26 of the stepper motor microcontroller U2 are respectively connected to one end of resistor Rm7, resistor Rm8, resistor Rm9, resistor Rm10, resistor Rm11 and resistor Rm12, and the other ends of resistor Rm7, resistor Rm8, resistor Rm9, resistor Rm10, resistor Rm11 and resistor Rm12 are respectively connected to a 3.3V voltage.

[0017] Furthermore, the 15th pin of the stepper motor microcontroller U2 is connected to one end of the capacitor Cd6, and the other end of the capacitor Cd6 is connected to the ground.

[0018] Furthermore, the 27th pin of the stepper motor microcontroller U2 is connected to one end of the resistor Rm6, and the other end of the resistor Rm6 is connected to the 15th pin of the stepper motor microcontroller U2.

[0019] The utility model solves the problems of high cost, large occupied volume, complex circuit and imperfect protection measures of existing equipment through an integrated stepper motor driving circuit of a fluorescent immunochromatographic analyzer, and has the advantages of low cost, simple circuit, stability and high safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 The utility model shows a circuit principle diagram of an integrated stepping motor driving circuit of a fluorescence immunochromatographic analyzer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0025] Reference below Figure 1 , the utility model is further described as follows:

[0026] An integrated stepper motor drive circuit for a fluorescent immunochromatographic analyzer, comprising:

[0027] Single chip microcomputer U1, stepper motor microcontroller U2, stepper motor P5, among which:

[0028] The first pin of the microcontroller U1 is connected to a 3.3V voltage, and the second pin of the microcontroller U1 is connected to the ground.

[0029] Pin 3 of the single-chip microcomputer U1 is connected to pin 22 of the stepper motor microcontroller U2, pin 4 of the single-chip microcomputer U1 is connected to pin 21 of the stepper motor microcontroller U2, pin 5 of the single-chip microcomputer U1 is connected to pin 20 of the stepper motor microcontroller U2, and pin 3, pin 4 and pin 5 of the single-chip microcomputer U1 are output pins, which are respectively used for motor pulse control, motor enable control and motor rotation direction control.

[0030] The 6th pin of the single-chip microcomputer U1 is connected to the 18th pin of the stepper motor microcontroller U2. The 6th pin of the single-chip microcomputer U1 is an input pin, which can receive motor control error information.

[0031] Pin 5 of the stepper motor microcontroller U2 is connected to pin 1 of the stepper motor P5, pin 7 of the stepper motor microcontroller U2 is connected to pin 2 of the stepper motor P5, pin 8 of the stepper motor microcontroller U2 is connected to pin 3 of the stepper motor P5, and pin 10 of the stepper motor microcontroller U2 is connected to pin 4 of the stepper motor P5.

[0032] Pin 14 and pin 28 of the stepper motor microcontroller U2 are both connected to ground.

[0033] The first pin and the second pin of the stepper motor microcontroller U2 are connected to both ends of the capacitor Cd1 respectively.

[0034] In this embodiment, the capacitance value of the capacitor Cd1 is 10 nF.

[0035] The 3rd and 4th pins of the stepper motor microcontroller U2 are respectively connected to the two ends of the capacitor Cd2, and the two ends of the capacitor Cd2 are also respectively connected to the two ends of the resistor Rm1. At the same time, the 4th and 11th pins of the stepper motor microcontroller U2 are commonly connected to one end of the capacitor Cd3, and the other end of the capacitor Cd3 is connected to the ground. The 4th and 11th pins of the stepper motor microcontroller U2 are also commonly connected to the input voltage and one end of the capacitor Cd5, and the other end of the capacitor Cd5 is connected to the ground. The 4th and 11th pins of the stepper motor microcontroller U2 are commonly connected to one end of the capacitor Cd4, and the other end of Cd4 is connected to the ground.

[0036] In this embodiment, the capacitance value of capacitor Cd2 is 0.1uF, the capacitance value of capacitor Cd3 is 0.1uF, the capacitance value of capacitor Cd4 is 0.1uF, and the resistance value of capacitor Cd5 is 220uF.

[0037] The 6th pin and the 9th pin of the stepper motor microcontroller U2 are connected to one end of the resistor Rm2 and one end of the resistor Rm3 respectively, and the other end of the resistor Rm2 and the other end of the resistor Rm3 are both connected to the ground.

[0038] In this embodiment, the resistance values ​​of the resistor Rm2 and the resistor Rm3 are both 0.2Ω.

[0039] The 12th pin and the 13th pin of the stepper motor microcontroller U2 are commonly connected to one end of the resistor Rm4 and one end of the resistor Rm5, the other end of the resistor Rm4 is connected to the 15th pin of the stepper motor microcontroller U2, and the other end of the resistor Rm5 is connected to the ground.

[0040] In this embodiment, the resistance value of the resistor Rm4 is 50 kΩ, and the resistance value of the resistor Rm5 is 30 kΩ.

[0041] Pin 16, pin 17, pin 19, pin 24, pin 25 and pin 26 of the stepper motor microcontroller U2 are respectively connected to one end of resistor Rm7, resistor Rm8, resistor Rm9, resistor Rm10, resistor Rm11 and resistor Rm12, and the other ends of resistor Rm7, resistor Rm8, resistor Rm9, resistor Rm10, resistor Rm11 and resistor Rm12 are respectively connected to a 3.3V voltage.

[0042] In this embodiment, the resistance values ​​of Rm7 , the resistor Rm8 , the resistor Rm9 , the resistor Rm10 , the resistor Rm11 and the resistor Rm12 are all 10 kΩ.

[0043] Pin 15 of the stepper motor microcontroller U2 is connected to one end of a capacitor Cd6, and the other end of the capacitor Cd6 is connected to the ground.

[0044] In this embodiment, the capacitance value of capacitor Cd6 is 0.47uF.

[0045] The 27th pin of the stepper motor microcontroller U2 is connected to one end of the resistor Rm6, and the other end of the resistor Rm6 is connected to the 15th pin of the stepper motor microcontroller U2.

[0046] In this embodiment, the resistance value of the resistor Rm6 is 10 kΩ.

[0047] In the description of the present invention, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0048] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An integrated stepper motor drive circuit for a fluorescent immunochromatographic analyzer, characterized in that: include: Single chip microcomputer U1, stepper motor microcontroller U2, stepper motor P5, among which: The 3rd pin of the single-chip microcomputer U1 is connected to the 22nd pin of the stepper motor microcontroller U2, the 4th pin of the single-chip microcomputer U1 is connected to the 21st pin of the stepper motor microcontroller U2, the 5th pin of the single-chip microcomputer U1 is connected to the 20th pin of the stepper motor microcontroller U2, and the 6th pin of the single-chip microcomputer U1 is connected to the 18th pin of the stepper motor microcontroller U2; Pin 5 of the stepper motor microcontroller U2 is connected to pin 1 of the stepper motor P5, pin 7 of the stepper motor microcontroller U2 is connected to pin 2 of the stepper motor P5, pin 8 of the stepper motor microcontroller U2 is connected to pin 3 of the stepper motor P5, and pin 10 of the stepper motor microcontroller U2 is connected to pin 4 of the stepper motor P5.

2. The integrated stepper motor drive circuit of a fluorescent immunochromatographic analyzer according to claim 1, characterized in that: The first pin of the single chip microcomputer U1 is connected to a 3.3V voltage.

3. The integrated stepper motor drive circuit of a fluorescent immunochromatographic analyzer according to claim 1, characterized in that: The second pin of the single chip microcomputer U1 and the 14th and 28th pins of the stepper motor microcontroller U2 are all connected to the ground.

4. The integrated stepper motor drive circuit of a fluorescent immunochromatographic analyzer according to claim 1, characterized in that: The first pin and the second pin of the stepper motor microcontroller U2 are respectively connected to two ends of the capacitor Cd1.

5. The integrated stepper motor drive circuit of a fluorescent immunochromatographic analyzer according to claim 1, characterized in that: The 3rd and 4th pins of the stepper motor microcontroller U2 are respectively connected to the two ends of the capacitor Cd2, and the two ends of the capacitor Cd2 are also respectively connected to the two ends of the resistor Rm1. At the same time, the 4th and 11th pins of the stepper motor microcontroller U2 are commonly connected to one end of the capacitor Cd3, and the other end of the capacitor Cd3 is connected to the ground. The 4th and 11th pins of the stepper motor microcontroller U2 are also commonly connected to the input voltage and one end of the capacitor Cd5, and the other end of the capacitor Cd5 is connected to the ground. The 4th and 11th pins of the stepper motor microcontroller U2 are commonly connected to one end of the capacitor Cd4, and the other end of the capacitor Cd4 is connected to the ground.

6. The integrated stepper motor drive circuit of a fluorescence immunochromatography analyzer according to claim 1, characterized in that: The 6th pin and the 9th pin of the stepper motor microcontroller U2 are respectively connected to one end of the resistor Rm2 and one end of the resistor Rm3, and the other end of the resistor Rm2 and the other end of the resistor Rm3 are both connected to the ground.

7. The integrated stepper motor drive circuit of a fluorescent immunochromatographic analyzer according to claim 1, characterized in that: The 12th and 13th pins of the stepper motor microcontroller U2 are commonly connected to one end of the resistor Rm4 and one end of the resistor Rm5, the other end of the resistor Rm4 is connected to the 15th pin of the stepper motor microcontroller U2, and the other end of the resistor Rm5 is connected to the ground.

8. The integrated stepper motor driving circuit of a fluorescence immunochromatography analyzer according to claim 1, characterized in that: Pin 16, pin 17, pin 19, pin 24, pin 25 and pin 26 of the stepper motor microcontroller U2 are respectively connected to one end of resistor Rm7, resistor Rm8, resistor Rm9, resistor Rm10, resistor Rm11 and resistor Rm12, and the other ends of resistor Rm7, resistor Rm8, resistor Rm9, resistor Rm10, resistor Rm11 and resistor Rm12 are respectively connected to a 3.3V voltage.

9. The integrated stepper motor driving circuit of a fluorescent immunochromatographic analyzer according to claim 1, characterized in that: The 15th pin of the stepper motor microcontroller U2 is connected to one end of a capacitor Cd6, and the other end of the capacitor Cd6 is connected to the ground.

10. The integrated stepper motor driving circuit of a fluorescence immunochromatography analyzer according to claim 1, characterized in that: The 27th pin of the stepper motor microcontroller U2 is connected to one end of the resistor Rm6, and the other end of the resistor Rm6 is connected to the 15th pin of the stepper motor microcontroller U2.

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