Motor power supply circuit and motor

Abstract

The utility model 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-stage reference voltage circuit unit and the second-stage 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 field of motor power supply technology, 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 sun's thermal radiation energy, primarily known as sunlight. Solar energy from sunlight is converted into electrical energy, which can be used to power electrical devices.

[0003] Existing solar panels on the market power motor circuits. In order to ensure continuous and stable operation of the motor, waste batteries or supercapacitors are used to store energy, resulting in the overall solar power supply equipment being too large. Utility Model Content

[0004] The technical problem to be solved by this 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 continuous and stable operation of the motor, 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 utility model discloses a motor power supply circuit, which includes 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;

[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 conductive output circuit unit and the second-stage conductive output circuit unit respectively, and the input unit is connected to the first-stage reference voltage circuit unit and the second-stage 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 includes a first reference voltage unit, a first resistor, and a second resistor;

[0011] The first resistor and the second resistor are connected in series;

[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 includes a second reference voltage unit, a third resistor, and a fourth resistor;

[0014] The third resistor and the fourth resistor are connected in series, 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 sources.

[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 conductive output unit and the second conductive output unit are PMOS tubes.

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

[0020] Preferably, 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.

[0021] In a second aspect, the utility model discloses a motor, which includes the motor power supply circuit.

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

[0023] The present application provides a motor power supply circuit and a motor, wherein the motor power supply circuit, the input unit inputs the power converted by the solar panel, the first-level reference voltage circuit unit and the first-level conduction output circuit unit constitute the first-level circuit, the second-level reference voltage circuit unit and the second-level conduction output circuit unit constitute the second-level circuit, the voltage value input by the input unit reaches the reference voltage of the first-level circuit, the input voltage of the input unit reaches the conduction threshold of the second-level circuit, the output control circuit unit is turned on, and power is output 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 power 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 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 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 herein are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

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

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

[0028] Figure 2 This is 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] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0033] First, see Figure 1-2 The utility model discloses a motor power supply circuit 1, which includes an input unit 11, a first-stage reference voltage circuit unit 12, a first-stage conduction output circuit unit 13, a second-stage reference voltage circuit unit 14, a second-stage 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 and receives 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-level reference voltage circuit unit and the second-level reference voltage circuit unit. The back electromotive force control circuit unit 17 is connected to the output control circuit unit 16. 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 constitute a first-level circuit, and the second-level reference voltage circuit unit 14 and the second-level conduction output circuit unit 15 constitute a second-level circuit. The voltage value input by the input unit 11 reaches the reference voltage of the first-level circuit, the input voltage of the input unit 11 reaches the conduction threshold of the second-level circuit, and 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 supply voltage exceeds the preset value, and the solar panel will supply power to the motor's subsequent circuit. The motor rotates continuously and stably, which can avoid the use of external batteries and supercapacitors to store electricity to maintain 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. The first conduction output unit U2 is a PMOS transistor. The source of the first conduction output unit U2 is connected to the fifth resistor R36, the gate is connected to the cathode of the first reference voltage unit U3, and the drain is connected to the output control circuit unit 16. In this embodiment, the first reference voltage unit U3 adopts a TL431 model, and the first conduction output unit U2 adopts a JMTQ080P03A model.

[0038] The second-stage 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 regulator, 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 transistor. In this embodiment, the second conduction output unit Q9 adopts a model SI2301-ZE.

[0040] The source and drain of the second conductive 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-state voltage of the first-stage circuit is defined by the first resistor R43 and the second resistor R44, namely: VIN / (R43+R44)*R44. The on-state voltage of the second-stage circuit is defined by the third resistor R37 and the fourth resistor R45, namely: VIN / (R37+R45)*R45. In this embodiment, the first resistor R43 is set to 18.2kΩ, the second resistor R44 is set to 12kΩ, the third resistor R37 is set to 10kΩ, and the fourth resistor R45 is set to 2kΩ. The on-state voltage of the first-stage on-state output circuit unit 13 is 6.3V, and the on-state voltage of the second-stage on-state 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-state voltage value of the first-stage conductive output circuit unit 13 and the on-state voltage value of the second-stage conductive 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 capability. Furthermore, by setting corresponding resistance values ​​according to different solar panels and motors of different power, the corresponding voltage values ​​are output. By adjusting the parameters of the feedback network (such as the resistance value), the width of the hysteresis band can be flexibly set to adapt to 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. Only when the third terminal is turned on can conduction occur between the first terminal and the second terminal.

[0045] Back-EMF control circuit unit 17 includes a transistor Q2, a Zener diode D2D2, a sixth resistor R19, and a capacitor. The Zener diode D2, the sixth resistor R19, and the capacitor are connected in parallel. The two ends of the Zener diode D2 are connected to the base and collector of the transistor Q2, respectively. The emitter of the transistor Q2 is connected to the cathode of the second reference voltage unit U4 and the gate of the second conductive output unit Q9, respectively. In this embodiment, the transistor Q2 is a 2N7002, and the transistor D2 is a 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 voltage of the first-stage circuit and less than the conduction voltage 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 a second aspect, the utility model 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, thereby improving 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 power the motor's subsequent circuit, and the motor will continue to rotate stably, avoiding 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 focus. 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 to 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, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0052] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

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

[0054] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean 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 expressions 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 can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0055] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, as long as 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 intended to include such modifications and variations.

[0056] The above description is a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A motor power supply circuit, characterized in that: It includes 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 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 conductive output circuit unit and the second-stage conductive output circuit unit respectively, and the input unit is connected to the first-stage reference voltage circuit unit and the second-stage 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-stage reference voltage circuit unit includes a first reference voltage unit, a first resistor, and a second resistor; The first resistor and the second resistor are connected in series; 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 3, characterized in that: The second-stage reference voltage circuit unit includes a second reference voltage unit, a third resistor, and a fourth resistor; The third resistor and the fourth resistor are connected in series, 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 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 conductive output unit and the second conductive output unit are PMOS tubes.

8. The motor power supply circuit according to claim 1, characterized in that: The output control circuit unit includes 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 according to any one of claims 1 to 9.

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