Motor power supply circuit and motor

Abstract

The invention provides a motor power supply circuit and a motor. The power supply circuit comprises an input unit, a first-stage reference voltage circuit unit, a first-stage conduction output circuit unit, a second-stage reference voltage circuit unit, a second-stage conduction output circuit unit and an output control circuit unit. The first-stage reference voltage circuit unit is connected with the first-stage conduction output circuit unit, and the second-stage reference voltage circuit unit is connected with the second-stage conduction output circuit unit; the output control circuit unit is respectively connected with the first-stage conduction output circuit unit and the second-stage conduction output circuit unit, and the input unit is respectively connected with the first reference voltage circuit unit and the second reference voltage circuit unit. When the sunlight is weak, the generator is not mistakenly touched to rotate; when sunlight is strong enough, the power supply voltage of the solar panel exceeds a preset value, the solar panel supplies power to the motor post-stage circuit, the motor continuously and stably rotates, and an external battery and a super capacitor can be prevented from being adopted to store power to maintain continuous and stable operation of the motor.

Description

Technical Field

[0001] The present application relates to the technical field of motor power supply, and in particular to a motor power supply circuit and a motor. Background Art

[0002] Solar energy is a renewable energy source. It refers to the thermal radiation energy of the sun, which is mainly manifested in the so-called sunlight. The solar energy obtained by sunlight is converted into electrical energy to power electrical equipment.

[0003] In the existing solar panel power supply circuits on the market, in order to ensure that the motors can operate continuously and stably, waste batteries or supercapacitors are used to store energy, which makes the overall solar power supply equipment too large. Summary of the invention

[0004] The technical problem to be solved by the present application is that the existing solar panel power supply circuit on the market uses waste batteries or supercapacitors to store energy in order to ensure that the motor can operate continuously and stably, resulting in the overall solar power supply equipment being too large.

[0005] In order to solve the above problems, in order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a motor power supply circuit and a motor.

[0006] In a first aspect, the present invention discloses a motor power supply circuit, which includes an input unit, a first-level reference voltage circuit unit, a first-level conduction output circuit unit, a second-level reference voltage circuit unit, a second-level conduction output circuit unit, and an output control circuit unit;

[0007] The first-stage reference voltage circuit unit is connected to the first-stage conduction output circuit unit, and the second-stage reference voltage circuit unit is connected to the second-stage conduction output circuit unit;

[0008] The output control circuit unit is connected to the first-stage conduction output circuit unit and the second-stage conduction output circuit unit respectively, and the input unit is connected to the first reference voltage circuit unit and the second reference voltage circuit unit respectively.

[0009] Preferably, a back-electromotive force control circuit unit is included, and the back-electromotive force control circuit unit is connected to the output control circuit unit.

[0010] Preferably, the first-stage reference voltage circuit unit comprises a first reference voltage unit, a first resistor, and a second resistor;

[0011] The first resistor is connected in series with the second resistor;

[0012] The reference electrode of the first reference voltage unit is connected to the first resistor and the second resistor respectively.

[0013] Preferably, the second-stage reference voltage circuit unit comprises a second reference voltage unit, a third resistor, and a fourth resistor;

[0014] The third resistor is connected in series with the fourth resistor, and a reference electrode of the first reference voltage unit is connected to the third resistor and the fourth resistor respectively.

[0015] Preferably, the first reference voltage unit and the second reference voltage unit are controllable precision voltage regulators.

[0016] Preferably, a cathode of the first reference voltage unit is connected to the input unit, and a cathode of the second reference voltage unit is connected to the input unit.

[0017] Preferably, the first-stage conduction output circuit unit includes a first conduction output unit, and the second-stage conduction output circuit unit includes a second conduction output unit;

[0018] The first conduction output unit and the second conduction output unit are PMOS tubes.

[0019] Preferably, the output control circuit unit comprises a switch unit, and the switch unit is a bidirectional thyristor.

[0020] Preferably, the switch unit comprises a first terminal, a second terminal and a third terminal, the first terminal is connected to the output end, the second terminal is connected to the first-stage conductive output circuit unit, and the third terminal is connected to the second-stage conductive output circuit unit.

[0021] In a second aspect, the present invention discloses a motor, which comprises the motor power supply circuit.

[0022] The above technical solution provided by this application has the following advantages compared with the prior art:

[0023] The present application provides a motor power supply circuit and a motor, wherein the motor power supply circuit, an input unit inputs power converted by a solar panel, a first-level reference voltage circuit unit and a first-level conduction output circuit unit form a first-level circuit, a second-level reference voltage circuit unit and a second-level conduction output circuit unit form a second-level circuit, a voltage value input by the input unit reaches a reference voltage of the first-level circuit, an input voltage of the input unit reaches a conduction threshold of the second-level circuit, an output control circuit unit is turned on, and power is output to a motor connected to the circuit, when sunlight is weak, the motor will not be mistakenly triggered to rotate; when sunlight is strong enough, the solar panel power supply voltage exceeds a preset value, the solar panel will supply power to the motor's subsequent circuit, and the motor will rotate continuously and stably, avoiding the use of external batteries and supercapacitors to store electricity to maintain continuous and stable operation of the motor.

[0024] The motor is powered by a motor power supply circuit. When the sun shines on the solar panel, the solar panel outputs a voltage which is processed by the motor power supply circuit to power the motor, thereby improving the stability and reliability of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] Figure 1 A module diagram of a motor power supply circuit provided in this application;

[0028] Figure 2 A circuit diagram of a motor power supply circuit provided in this application.

[0029] Description of reference numerals:

[0030] 1. Motor power supply circuit;

[0031] 11. Input unit; 12. First-stage reference voltage circuit unit; 13. First-stage conduction output circuit unit; 14. Second-stage reference voltage circuit unit; 15. Second-stage conduction output circuit unit; 16. Output control circuit unit; 17. Back-electromotive force control circuit unit. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] First, see Figure 1-2 The present invention discloses a motor power supply circuit 1, which includes an input unit 11, a first-level reference voltage circuit unit 12, a first-level conduction output circuit unit 13, a second-level reference voltage circuit unit 14, a second-level conduction output circuit unit 15, an output control circuit unit 16, and a back-electromotive force control circuit unit 17.

[0034] Specifically, the input unit 11 is connected to the solar panel to receive the power output by the solar panel, the first-level reference voltage circuit unit 12 is connected to the first-level conduction output circuit unit 13, the second-level reference voltage circuit unit 14 is connected to the second-level conduction output circuit unit 15, the output control circuit unit 16 is respectively connected to the first-level conduction output circuit unit 13 and the second-level conduction output circuit unit 15, the input unit 11 is respectively connected to the first reference voltage circuit unit and the second reference voltage circuit unit, the back-electromotive force control circuit unit 17 is connected to the output control circuit unit 16, and the output control circuit unit 16 includes an output end, and the voltage of the output end is recorded as VCC.

[0035] It can be understood that the input end of the input unit 11 inputs the power converted by the solar panel, which is recorded as the input end VIN. The first-level reference voltage circuit unit 12 and the first-level conduction output circuit unit 13 form a first-level circuit, and the second-level reference voltage circuit unit 14 and the second-level conduction output circuit unit 15 form a second-level circuit. The voltage value input by the input unit 11 reaches the reference voltage of the first-level circuit, and the input voltage of the input unit 11 reaches the conduction threshold of the second-level circuit. The output control circuit unit 16 is turned on to output power to the motor connected to the circuit. When the sunlight is weak, the motor will not be triggered to rotate by mistake. When the sunlight is strong enough, the solar panel power supply voltage exceeds the preset value. The solar panel will supply power to the motor's subsequent circuit, and the motor will rotate continuously and stably, which can avoid the use of external batteries and supercapacitors to store electricity to maintain the continuous and stable operation of the motor.

[0036] The first-level reference voltage circuit unit 12 includes a first reference voltage unit U3, a first resistor R43, a second resistor R44, and a fifth resistor R36. The first reference voltage unit U3 is a controllable precision voltage source. The first resistor R43 and the second resistor R44 are connected in series. The fifth resistor R36 is connected to the cathode of the first reference voltage unit U3. The connection position between the first resistor R43 and the second resistor R44 is connected to the reference electrode of the first reference voltage unit U3. The cathode of the first reference voltage unit U3 is connected to the input unit 11.

[0037] The first-stage conduction output circuit unit 13 includes a first conduction output unit U2, which is a PMOS tube, a source of the first conduction output unit U2 is connected to the fifth resistor R36, a gate is connected to the cathode of the first reference voltage unit U3, and a drain is connected to the output control circuit unit 16. In this embodiment, the first reference voltage unit U3 adopts a model TL431, and the first conduction output unit U2 adopts a model JMTQ080P03A.

[0038] The second-level reference voltage circuit unit 14 includes a second reference voltage unit U4, a third resistor R37, and a fourth resistor R45. The second reference voltage unit U4 is a controllable precision voltage source, model TL431. The third resistor R37 is connected in series with the fourth resistor R45. The connection position between the third resistor R37 and the fourth resistor R45 is connected to the reference electrode of the first reference voltage unit U3. The cathode of the second reference voltage unit U4 is connected to the input unit 11.

[0039] The second-stage conduction output circuit unit 15 includes a second conduction output unit Q9 . The second conduction output unit Q9 is a PMOS tube. In this embodiment, the model of the second conduction output unit Q9 is SI2301-ZE.

[0040] The source and drain of the second conduction output unit Q9 are connected to the output control circuit unit 16 , and the gate is connected to the cathode of the second reference voltage unit U4 .

[0041] The on-voltage value of the first stage circuit is defined by the first resistor R43 and the second resistor R44, that is, VIN / (R43+R44)*R44; the on-voltage value of the second stage circuit is defined by the third resistor R37 and the fourth resistor R45, that is, VIN / (R37+R45)*R45. In this embodiment, the first resistor R43 is set to 18.2k, the second resistor R44 is set to 12k, the third resistor R37 is set to 10k, and the fourth resistor R45 is set to 2k. The on-voltage of the first stage on-output circuit unit 13 is 6.3V, and the on-voltage of the second stage on-output circuit unit 15 is 15V.

[0042] The first stage circuit and the second stage circuit form a hysteresis circuit. When the change in input voltage exceeds the hysteresis band of the hysteresis circuit (the difference between the on-voltage value of the first stage output circuit unit 13 and the on-voltage value of the second stage output circuit unit 15), the output state of the hysteresis circuit will change. For interference less than the hysteresis band, this circuit can maintain the stability of the output state, thereby improving the anti-interference ability. Furthermore, by setting corresponding resistance values ​​according to different solar panels and motors of different powers, the corresponding voltage values ​​are output, and by adjusting the parameters of the feedback network (such as the resistance value), the width of the hysteresis band can be flexibly set to meet different application requirements.

[0043] The output control circuit unit 16 includes a switch unit Q8 , which is a bidirectional thyristor. In this embodiment, the switch unit Q8 is of model BT134W.

[0044] The switch unit Q8 includes a first terminal, a second terminal, and a third terminal. The first terminal is connected to the output terminal VCC, the second terminal is connected to the first-stage conduction output circuit unit 13, and the third terminal is connected to the second-stage conduction output circuit unit 15. The third terminal is a control terminal. When the third terminal is turned on, the first terminal and the second terminal can be turned on.

[0045] The back-electromotive force control circuit unit 17 includes a transistor Q2, a voltage stabilizing diode D2D2, a sixth resistor R19, and a capacitor. The voltage stabilizing diode D2, the sixth resistor R19, and the capacitor are connected in parallel. The two ends of the voltage stabilizing diode D2 are respectively connected to the base and collector of the transistor Q2. The emitter of the transistor Q2 is respectively connected to the cathode of the second reference voltage unit U4 and the gate of the second conduction output unit Q9. In this embodiment, the transistor Q2 model is 2N7002, and the D2 model is BZT52C15.

[0046] When the motor rotates, the sunlight turns from strong to weak, the input voltage of the input unit 11 becomes lower, the motor speed decreases, and the motor generates a back electromotive force, which makes the voltage value of the first terminal of the switch unit Q8 higher than the voltage value of the second terminal. Due to the existence of the back electromotive force control circuit unit 17, the voltage output by the second-stage conduction output circuit unit 15 can be lower than the conduction threshold of the switch, so that the switch is cut off, preventing frequent switching actions of the motor due to small voltage fluctuations.

[0047] Power supply principle: when the input voltage value of the input unit 11 is greater than the conduction value of the second-stage conduction output circuit unit 15, the second-stage circuit is turned on, the output control circuit unit 16 is turned on, and the input voltage of the input unit 11 is output through the output control circuit unit 16; when the input voltage of the input unit 11 is less than or equal to the conduction voltage of the first-stage circuit, the voltage output by the second-stage conduction output circuit unit 15 is less than the conduction condition of the switch, and the second-stage conduction output circuit unit 15 outputs a voltage of 0 to the output end; when the input voltage of the input unit 11 is greater than the conduction value of the first-stage circuit and less than the conduction value of the second-stage circuit, the output control circuit unit 16 fails to turn on, and the output voltage of the output end is 0.

[0048] In the second aspect, the present invention discloses a motor, which includes the motor power supply circuit 1 disclosed above. Specifically, the motor is powered by the motor power supply circuit 1. When the sun shines on the solar panel, the solar panel outputs a voltage, which is processed by the motor power supply circuit 1 to power the motor, which can improve the stability and reliability of the circuit. It can be understood that when the sunlight is weak, the motor will not be triggered to rotate by mistake; when the sunlight is strong enough, the solar panel supply voltage exceeds the preset value, and the solar panel will supply power to the motor's rear-stage circuit, and the motor will continue to rotate stably, which can avoid the use of external batteries and supercapacitors to store electricity to maintain the continuous and stable operation of the motor.

[0049] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0055] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0056] The above is a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A motor power supply circuit, characterized in that: It includes an input unit, a first-level reference voltage circuit unit, a first-level conduction output circuit unit, a second-level reference voltage circuit unit, a second-level conduction output circuit unit, and an output control circuit unit; The first-stage reference voltage circuit unit is connected to the first-stage conduction output circuit unit, and the second-stage reference voltage circuit unit is connected to the second-stage conduction output circuit unit; The output control circuit unit is connected to the first-stage conduction output circuit unit and the second-stage conduction output circuit unit respectively, and the input unit is connected to the first reference voltage circuit unit and the second reference voltage circuit unit respectively.

2. The motor power supply circuit according to claim 1, characterized in that: A back-electromotive force control circuit unit is included, and the back-electromotive force control circuit unit is connected to the output control circuit unit.

3. The motor power supply circuit according to claim 1, characterized in that: The first-level reference voltage circuit unit includes a first reference voltage unit, a first resistor, and a second resistor; The first resistor is connected in series with the second resistor; The reference electrode of the first reference voltage unit is connected to the first resistor and the second resistor respectively.

4. The motor power supply circuit according to claim 1, characterized in that: The second-level reference voltage circuit unit includes a second reference voltage unit, a third resistor, and a fourth resistor; The third resistor is connected in series with the fourth resistor, and a reference electrode of the first reference voltage unit is connected to the third resistor and the fourth resistor respectively.

5. The motor power supply circuit according to claim 1, characterized in that: The first reference voltage unit and the second reference voltage unit are controllable precision voltage stabilization sources.

6. The motor power supply circuit according to claim 5, characterized in that: A cathode of the first reference voltage unit is connected to the input unit, and a cathode of the second reference voltage unit is connected to the input unit.

7. The motor power supply circuit according to claim 1, characterized in that: The first-stage conduction output circuit unit includes a first conduction output unit, and the second-stage conduction output circuit unit includes a second conduction output unit; The first conduction output unit and the second conduction output unit are PMOS tubes.

8. The motor power supply circuit according to claim 1, characterized in that: The output control circuit unit comprises a switch unit, and the switch unit is a bidirectional thyristor.

9. The motor power supply circuit according to claim 8, characterized in that: The switch unit includes a first terminal, a second terminal, and a third terminal. The first terminal is connected to the output end, the second terminal is connected to the first-stage conductive output circuit unit, and the third terminal is connected to the second-stage conductive output circuit unit.

10. A motor, characterized in that: The motor power supply circuit comprises the motor power supply circuit as described in any one of claims 1 to 9.

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