Fan lamp control system integrating LED driving and wind direction control

Abstract

The utility model belongs to the technical scheme of electronic circuits, and particularly relates to a fan lamp control system integrating LED driving and wind direction control. The main control MCU receives the AC-DC voltage conversion circuit and the RF remote control receiving circuit, the main control MCU sends signals to the electric power inversion control circuit, the DC-DC BOOST circuit, the stepping motor control circuit and the buzzer driving circuit, and the AC-DC voltage conversion circuit sends signals to the electric power inversion control circuit, the stepping motor control circuit and the DC-DC BOOST circuit respectively. The utility model is used for solving the problems that in the prior art, the output voltage is high, each composition circuit is independent and separated and is connected and assembled through a lead, the material and production cost is high, and the compatibility is poor.

Description

Technical Field

[0001] The utility model pertains to electronic circuit technology solutions, specifically relating to a fan-light control system that integrates LED driving and airflow control. Background Technology

[0002] Currently, the circuit control schemes of similar products on the market have obvious drawbacks. First, the output voltage generally adopts a high-voltage design, which not only increases the safety hazards during production, transportation, and use, but also raises the protection requirements for operators, thus increasing the cost and risk factor. Second, the various circuit components are independent of each other and adopt a separate design, connected and assembled by wires. This method results in a complex circuit structure, which increases assembly processes and labor costs, and also raises the overall material cost due to the large amount of wires, connectors, and other materials used. Furthermore, due to the lack of standardized interface standards for various circuit modules, the compatibility between products from different manufacturers is extremely poor, limiting the functional expansion and upgrade of products and failing to meet diverse market demands. Currently, similar products on the market generally have high output voltages, with each component circuit being independent and assembled by connecting wires, resulting in high material and production costs and poor compatibility. To solve this problem, this utility model integrates an AC-DC conversion circuit, which is compatible with a wide voltage range of 110-240V, has a first-level PFC, a high power factor, meets the harmonic requirements of lighting fixtures, has good EMC characteristics, and outputs 24V, making it convenient to manufacture and safe and reliable. Utility Model Content

[0003] This invention provides a fan light control system that integrates LED driving and wind direction control, which solves the problems of existing technologies where the output voltage is high, each component circuit is independent and assembled by connecting wires, resulting in high material and production costs and poor compatibility.

[0004] This utility model is achieved through the following technical solution:

[0005] A fan light control system integrating LED driving and wind direction control, the control system includes a main control MCU, an electric power inverter control circuit, an AC-DC voltage conversion circuit, a stepper motor control circuit, a DC-DC BOOST boost circuit, an RF remote control receiver circuit, and a buzzer driver circuit;

[0006] The main control MCU receives signals from the AC-DC voltage conversion circuit and the RF remote control receiving circuit. The main control MCU sends signals to the power inverter control circuit, the DC-DC BOOST boost circuit, the stepper motor control circuit, and the buzzer drive circuit. The AC-DC voltage conversion circuit sends signals to the power inverter control circuit, the stepper motor control circuit, and the DC-DC BOOST boost circuit, respectively.

[0007] Furthermore, the power inverter control circuit includes a chip Q4, with terminal 4 of chip Q4 connected to one end of resistor R37, one end of capacitor C20, and one end of resistor R36, respectively. The other end of resistor R36 is connected to terminal 9 of chip U2.

[0008] Terminal 3 of chip Q4 is connected to the other end of resistor R37, the other end of capacitor C20, and the operating voltage of 24V.

[0009] Terminal 2 of chip Q4 is connected to one end of resistor R39, one end of capacitor C21, and one end of resistor R38, respectively. The other end of resistor R38 is connected to terminal 10 of chip U2.

[0010] Terminal 1 of chip Q4 is connected to the other end of resistor R39, the other end of capacitor C21, terminal 1 of chip Q6, the other end of resistor R47, the other end of capacitor C25, terminal 1 of chip Q5, the other end of resistor R43 and capacitor C23, one end of resistor RS8, and one end of resistor RP1.

[0011] Terminal 4 of chip Q5 is connected to one end of resistor R41, one end of capacitor C22, and one end of resistor R40, respectively. The other end of resistor R40 is connected to terminal 11 of chip U2.

[0012] Terminal 3 of chip Q5 is connected to the other end of resistor R41, the other end of capacitor C22, and the operating voltage of 24V.

[0013] Terminal 2 of chip Q5 is connected to one end of resistor R43, one end of capacitor C23, and one end of resistor R42, respectively. The other end of resistor R42 is connected to terminal 12 of chip U2.

[0014] Terminal 4 of chip Q6 is connected to one end of resistor R45, one end of capacitor C24, and one end of resistor R44, respectively. The other end of resistor R44 is connected to terminal 13 of chip U2.

[0015] Terminal 3 of chip Q6 is connected to the other end of resistor R45, the other end of capacitor C24, and the operating voltage of 24V.

[0016] Terminal 2 of chip Q6 is connected to one end of resistor R47, one end of capacitor C25, and one end of resistor R46, respectively. The other end of resistor R46 is connected to terminal 14 of chip U2.

[0017] The other end of resistor RS8 is connected to one end of resistor RP2 and then grounded.

[0018] The other end of the resistor RP1 is connected to one end of the capacitor C34 and terminal 16 of the chip U2.

[0019] The other end of resistor RP2 is connected to the other end of capacitor C34 and terminal 17 of chip U2, respectively.

[0020] The 5th to 8th terminals of the chip Q4 are connected to the 1st terminal of the inductor L4, and the 6th terminal of the inductor L4 is connected to the 3rd terminal of the interface CN3.

[0021] The 5th to 8th terminals of the chip Q5 are connected to the 3rd terminal of the inductor L4, and the 5th terminal of the inductor L4 is connected to the 2nd terminal of the interface CN3.

[0022] The 5th to 8th terminals of the chip Q6 are connected to the 3rd terminal of the inductor L4, and the 6th terminal of the inductor L4 is connected to the 1st terminal of the interface CN3.

[0023] Furthermore, the AC-DC voltage conversion circuit includes an interface CN1. Terminal 1 of interface CN1 is connected to one end of fuse F1. The other end of fuse F1 is connected to one end of sodium-ion diode VDR1 and the corresponding terminal 1 of magnetic induction coil LF1. Terminal 1 of interface CN1 is connected to one end of circuit breaker NTC1. The other end of circuit breaker NTC1 is connected to the other end of sodium-ion diode VDR1 and the corresponding terminal 2 of magnetic induction coil LF1. Terminal 3 of magnetic induction coil LF1 is connected to one end of resistor RX1 and the corresponding terminal 2 of magnetic induction coil LF1. One end of capacitor CX1 is connected to the same-named end 1 of magnetic induction coil LF2. The four ends of magnetic induction coil LF1 are respectively connected to one end of resistor RX2, the other end of capacitor CX1, and the same-named end 2 of magnetic induction coil LF2. The other end of resistor RX1 is connected to the other end of resistor RX2. The three ends of magnetic induction coil LF2 are respectively connected to one end of capacitor CX2, one end of capacitor CY2, and end 1 of bridge BD1. The three ends of magnetic induction coil LF2 are respectively connected to one end of resistor CY1, the other end of capacitor CX2, and end 3 of bridge BD1.

[0024] Terminal 3 of interface CN1 is connected to the other end of resistor CY1;

[0025] Terminal 2 of the bridge circuit BD1 is connected to one end of capacitor CE4, one end of capacitor C1, one end of capacitor C2, one end of capacitor C3, one end of resistor R25, one end of resistor R5, one end of resistor R6, and terminal 4 of chip U1. The other end of capacitor CE4 is connected to the other end of capacitor C1, the cathode of diode D1, and terminal 6 of chip U1. The other end of resistor R25 is connected to one end of resistor R7 and terminal 8 of chip U1. The other end of resistor R7 is connected to the other end of capacitor C2. The other end of resistor R5 is connected to the other end of resistor R6, the other end of capacitor C3, one end of resistor R4, and terminal 7 of chip U1. The other end of resistor R4 is connected to one end of resistor R3.

[0026] Furthermore, the positive terminal of the diode D1 is connected to one end of the resistor R2, the other end of the resistor R3 is connected to the same terminal of the magnetic induction coil T1B, and the other end of the magnetic induction coil T1B is grounded.

[0027] Terminal 4 of the bridge BD1 is connected to one end of inductor L1, one end of resistor R1, and one end of resistor R9. The other end of resistor R9 is connected to one end of resistor R10, and the other end of resistor R10 is connected to terminal 1 of chip U1.

[0028] One end of capacitor CB1 is connected to the ground. The other end of capacitor CB1 is grounded. The other end of inductor L1 is connected to the other end of resistor R1, one end of capacitor CB2, one end of capacitor C4, one end of resistor R11, one end of resistor R12, one end of resistor R13, one end of capacitor CY4, and one end of magnetic coil T1A. The other end of capacitor C4 is connected to the other ends of resistors R11, R12, R13, R14, R15, R16, and R17. The other end of resistor R14 is connected to... The other ends of resistors R15, R16, and R17 are connected to the cathodes of diodes D2 and D3. The anode of diode D2 is connected to the anode of diode D3, terminal 6 of magnetic coil T1A, one end of capacitor C6, and terminal 2 of field-effect transistor Q1. Terminal 1 of field-effect transistor Q1 is connected to the anode of diode D5, one end of resistor R21, and one end of resistor R19. The other end of resistor R19 is connected to one end of resistor R20 and the cathode of diode D5. The other end of resistor R20 is connected to terminal 5 of chip U1.

[0029] Terminal 3 of chip U1 is connected to one end of resistor R26 and one end of capacitor C5. The other end of resistor R26 is connected to the other end of resistor R21, one end of resistor RS1, one end of resistor RS2, one end of resistor RS3, one end of resistor RS4, one end of resistor RS5 and terminal 3 of field-effect transistor Q1. The other end of capacitor C5 is connected to the other end of resistor RS1, the other end of resistor RS2, the other end of resistor RS3, the other end of resistor RS4, the other end of resistor RS5 and the other end of capacitor C6 and then grounded.

[0030] Furthermore, the other end of capacitor CY4 is connected to one end of capacitor C7, the positive terminal of diode group D4, and the corresponding terminal 10 of magnetic induction coil T1A. The other end of capacitor C7 is connected to one end of resistor R22 and one end of resistor R23. The negative terminal of diode group D4 is connected to the other end of resistor R22, the other end of resistor R23, one end of capacitor CE1, one end of capacitor CE2, one end of capacitor CE3, one end of capacitor CE7, one end of resistor R24, one end of capacitor C8, and the corresponding terminal 1 of magnetic induction coil LF3. The corresponding terminal 3 of magnetic induction coil LF3 is connected to the 24V output terminal. The corresponding terminal 9 of magnetic induction coil T1A is connected to the other end of capacitor CE1, the other end of capacitor CE2, the other end of capacitor CE3, the other end of capacitor CE7, the other end of resistor R24, the other end of capacitor C8, and the corresponding terminal 2 of magnetic induction coil LF3. The corresponding terminal 4 of magnetic induction coil LF3 is connected to the ground terminal.

[0031] Furthermore, the stepper motor control circuit includes chip U3, and terminal 1 of chip U3 is connected in series with resistor R82 and then connected to terminal 5 of chip U2.

[0032] The resistor R83 is connected in series with terminal 2 of chip U3 and then connected to terminal 6 of chip U2.

[0033] The 3rd terminal of chip U3 is connected in series with resistor R84 and then connected to the 19th terminal of chip U2.

[0034] The 4th terminal of chip U3 is connected in series with resistor R85 and then connected to the 18th terminal of chip U2.

[0035] Terminal 8 of chip U3 is connected to one end of capacitor C44 and one end of capacitor CE8, and then grounded. Terminal 9 of chip U3 is connected to the other end of capacitor C44, the other end of capacitor CE8, one end of capacitor C45, the operating voltage 24V, and terminal 1 of interface CN2. The other end of capacitor C45 is grounded. Terminal 13 of chip U3 is connected to terminal 2 of interface CN2. Terminal 14 of chip U3 is connected to terminal 3 of interface CN2. Terminal 15 of chip U3 is connected to terminal 4 of interface CN2. Terminal 16 of chip U3 is connected to terminal 5 of interface CN2.

[0036] Furthermore, the DC-DC BOOST boost circuit includes resistor R51. One end of resistor R51 is connected to terminal 3 of chip U2. The other end of resistor R51 is connected to one end of resistor R50, one end of capacitor C30, and terminal 2 of chip IC1. The other end of resistor R50 is connected to the other end of capacitor C30, one end of capacitor C28, and one end of capacitor C12, and then grounded. The other end of capacitor C28 is connected to terminal 1 of chip IC1. Terminal 3 of chip IC1 is connected to ground in series with capacitor C29. Terminal 4 of chip IC1 is connected to the IFB terminal. The other end of capacitor C12 is connected to one end of resistor R52 and terminal 8 of chip IC1. Terminal 7 of chip IC1 is connected to one end of resistor R59. The other end of resistor R59 is connected to one end of resistor R57 and the cathode of diode D6. Terminal 5 of chip IC1 is connected to the VFB terminal. Terminal 6 of chip IC1... The resistor R57 is connected to one end of resistor R53 and one end of capacitor C32 respectively. The other end of resistor R57 is connected to one end of resistor R56, one end of capacitor C17 and the gate terminal of MOSFET Q9 respectively. The other end of resistor R56 is connected to the other end of resistor R53, one end of resistor R54, one end of resistor R55, one end of capacitor C17 and the source terminal of MOSFET Q9 respectively. The other end of resistor R52 is connected to one end of inductor L6 and the operating voltage 24V respectively. The other end of inductor L6 is connected to the positive terminal of diode D7, the drain terminal of MOSFET Q9 and one end of resistor R58 respectively. The other end of resistor R58 is connected to one end of capacitor C9. The negative terminal of diode D7 is connected to the other end of capacitor C9, one end of resistor R60, one end of capacitor CAP1 and the first terminal of inductor group L3 respectively. The other end of resistor R60 is connected to one end of resistor R66 and the VFB terminal respectively.

[0037] Furthermore, the other end of capacitor CAP1 is connected to the other ends of resistors R61, R55, and R54, one end of capacitor C32, one end of resistor R67, and one end of resistor R68. The other end of resistor R67 is connected to the other end of resistor R68, one end of resistor R100, one end of resistor R63, one end of resistor R65, and terminals 3 and 1 of chip Q8. The other end of resistor R63 is connected to one end of resistor R62 and terminal 4 of chip Q8. The other end of resistor R65 is connected to one end of resistor R64 and terminal 2 of chip Q8. The resistor R62 is connected to terminal 21 of chip U2, the resistor R64 is connected to terminal 20 of chip U2, the resistor R100 is connected to the IFB terminal, terminal 5 of chip Q8 is connected to terminal 6 of chip Q8 and terminal 2 of inductor group L3, terminal 7 of chip Q8 is connected to terminal 8 of chip Q8 and terminal 3 of inductor group L3, terminal 4 of inductor group L3 is connected to terminal 1 of interface CN4, terminal 5 of inductor group L3 is connected to terminal 2 of interface CN4, and terminal 6 of inductor group L3 is connected to terminal 3 of interface CN4.

[0038] Furthermore, the RF remote control receiving circuit includes a capacitor C43. One end of the capacitor C43 is connected to terminal 23 of chip U2 and one end of resistor R81. The other end of resistor R81 is connected to terminal 5 of chip U4. The other end of the capacitor C43 is connected to terminal 6 of chip U4, one end of capacitor C42, and terminal 2 of crystal oscillator Y1, and then grounded. The other end of capacitor C42 is connected to terminal 7 of chip U4. Terminal 1 of crystal oscillator Y1 is connected to terminal 8 of chip U4.

[0039] Furthermore, terminal 1 of chip U4 is connected to one end of inductor L8, one end of inductor L7, and one end of capacitor C37, and then grounded. Terminal 2 of chip U4 is connected to the other end of inductor L8 and one end of capacitor C38, and the other end of capacitor C38 is connected to the other end of inductor L7, the other end of capacitor C37, and the ANT interface.

[0040] Terminal 3 of chip U4 is connected to one end of capacitor C39, one end of capacitor C40, and the operating voltage VDD5. Terminal 3 of chip U4 is connected to one end of capacitor C41. The other end of capacitor C39 is connected to the other end of capacitor C41 and the other end of capacitor C40.

[0041] The beneficial effects of this utility model are:

[0042] The control system of this utility model has all circuits designed on the same PCB, which is small in size, highly integrated, and convenient for SMT and post-soldering processing, effectively reducing costs. LED dimming, stepper motor operation, fan motor drive and control are all completed by the same main control MCU. It can perform personalized function control such as bus voltage detection and power-off memory, and has good compatibility, which improves product reliability. It has good EMC characteristics and meets various safety certifications. Attached Figure Description

[0043] Figure 1 This is a structural block diagram of the present invention.

[0044] Figure 2 This is the circuit diagram of the main control MCU of this utility model.

[0045] Figure 3 This is the AC-DC voltage conversion circuit diagram of this utility model.

[0046] Figure 4 This is a circuit diagram of the DC-DC BOOST boost circuit of this utility model.

[0047] Figure 5 This is the circuit diagram of the RF remote control receiver of this utility model.

[0048] Figure 6 This is the circuit diagram of the power inverter control of this utility model.

[0049] Figure 7 This is the stepper motor control circuit diagram of this utility model.

[0050] Figure 8 This is a detailed circuit diagram of the present invention, wherein (a) is a buzzer drive circuit diagram, (b) is a main control MCU programming port circuit diagram, (c) is a bus voltage detection circuit diagram, and (d) is a hardware overcurrent bias circuit diagram. Implementation

[0051] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of this application with unnecessary detail.

[0052] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0053] It should also be understood that the terminology used in this application specification is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this application specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0054] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0055] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0056] A fan light control system integrating LED driving and airflow control includes a main control MCU, an electric power inverter control circuit, an AC-DC voltage conversion circuit, a stepper motor control circuit, a DC-DC boost circuit, an RF remote control receiver circuit, and a buzzer driver circuit, such as... Figure 1 As shown;

[0057] The main control MCU receives signals from the AC-DC voltage conversion circuit and the RF remote control receiving circuit. The main control MCU sends signals to the power inverter control circuit, the DC-DC BOOST boost circuit, the stepper motor control circuit, and the buzzer drive circuit. The AC-DC voltage conversion circuit sends signals to the power inverter control circuit, the stepper motor control circuit, and the DC-DC BOOST boost circuit, respectively.

[0058] Specifically, the main control MCU is an ARM platform-based M0 series MCU, which is mainly responsible for driving the three-phase brushless DC motor of the fan. It also outputs a set of PWM signals to control the dimming of the LEDs. Through the combination of control software, differentiated function control can be achieved. The integrated design ensures the stability of the system and reduces material costs.

[0059] like Figure 2 As shown, the power inverter control circuit further includes chip Q4. Terminal 4 of chip Q4 is connected to one end of resistor R37, one end of capacitor C20, and one end of resistor R36. The other end of resistor R36 is connected to terminal 9 of chip U2.

[0060] Terminal 3 of chip Q4 is connected to the other end of resistor R37, the other end of capacitor C20, and the operating voltage of 24V.

[0061] Terminal 2 of chip Q4 is connected to one end of resistor R39, one end of capacitor C21, and one end of resistor R38, respectively. The other end of resistor R38 is connected to terminal 10 of chip U2.

[0062] Terminal 1 of chip Q4 is connected to the other end of resistor R39, the other end of capacitor C21, terminal 1 of chip Q6, the other end of resistor R47, the other end of capacitor C25, terminal 1 of chip Q5, the other end of resistor R43 and capacitor C23, one end of resistor RS8, and one end of resistor RP1.

[0063] Terminal 4 of chip Q5 is connected to one end of resistor R41, one end of capacitor C22, and one end of resistor R40, respectively. The other end of resistor R40 is connected to terminal 11 of chip U2.

[0064] Terminal 3 of chip Q5 is connected to the other end of resistor R41, the other end of capacitor C22, and the operating voltage of 24V.

[0065] Terminal 2 of chip Q5 is connected to one end of resistor R43, one end of capacitor C23, and one end of resistor R42, respectively. The other end of resistor R42 is connected to terminal 12 of chip U2.

[0066] Terminal 4 of chip Q6 is connected to one end of resistor R45, one end of capacitor C24, and one end of resistor R44, respectively. The other end of resistor R44 is connected to terminal 13 of chip U2.

[0067] Terminal 3 of chip Q6 is connected to the other end of resistor R45, the other end of capacitor C24, and the operating voltage of 24V.

[0068] Terminal 2 of chip Q6 is connected to one end of resistor R47, one end of capacitor C25, and one end of resistor R46, respectively. The other end of resistor R46 is connected to terminal 14 of chip U2.

[0069] The other end of resistor RS8 is connected to one end of resistor RP2 and then grounded.

[0070] The other end of the resistor RP1 is connected to one end of the capacitor C34 and terminal 16 of the chip U2.

[0071] The other end of resistor RP2 is connected to the other end of capacitor C34 and terminal 17 of chip U2, respectively.

[0072] The 5th to 8th terminals of the chip Q4 are connected to the 1st terminal of the inductor L4, and the 6th terminal of the inductor L4 is connected to the 3rd terminal of the interface CN3.

[0073] The 5th to 8th terminals of the chip Q5 are connected to the 3rd terminal of the inductor L4, and the 5th terminal of the inductor L4 is connected to the 2nd terminal of the interface CN3.

[0074] The 5th to 8th terminals of the chip Q6 are connected to the 3rd terminal of the inductor L4, and the 6th terminal of the inductor L4 is connected to the 1st terminal of the interface CN3.

[0075] Specifically, the stepper motor drive circuit is responsible for driving the stepper motor. The main control MCU, according to the preset program, alternately controls the A, B, C, and D phases of the stepper motor to control the speed and angle of the stepper motor, thereby controlling the direction of the air outlet blades and realizing the control of the fan airflow direction.

[0076] Furthermore, the AC-DC voltage conversion circuit includes an interface CN1. Terminal 1 of interface CN1 is connected to one end of fuse F1. The other end of fuse F1 is connected to one end of sodium-ion diode VDR1 and the corresponding terminal 1 of magnetic induction coil LF1. Terminal 1 of interface CN1 is connected to one end of circuit breaker NTC1. The other end of circuit breaker NTC1 is connected to the other end of sodium-ion diode VDR1 and the corresponding terminal 2 of magnetic induction coil LF1. Terminal 3 of magnetic induction coil LF1 is connected to one end of resistor RX1 and the corresponding terminal 2 of magnetic induction coil LF1. One end of capacitor CX1 is connected to the same-named end 1 of magnetic induction coil LF2. The four ends of magnetic induction coil LF1 are respectively connected to one end of resistor RX2, the other end of capacitor CX1, and the same-named end 2 of magnetic induction coil LF2. The other end of resistor RX1 is connected to the other end of resistor RX2. The three ends of magnetic induction coil LF2 are respectively connected to one end of capacitor CX2, one end of capacitor CY2, and end 1 of bridge BD1. The three ends of magnetic induction coil LF2 are respectively connected to one end of resistor CY1, the other end of capacitor CX2, and end 3 of bridge BD1.

[0077] Terminal 3 of interface CN1 is connected to the other end of resistor CY1;

[0078] Terminal 2 of the bridge circuit BD1 is connected to one end of capacitor CE4, one end of capacitor C1, one end of capacitor C2, one end of capacitor C3, one end of resistor R25, one end of resistor R5, one end of resistor R6, and terminal 4 of chip U1. The other end of capacitor CE4 is connected to the other end of capacitor C1, the cathode of diode D1, and terminal 6 of chip U1. The other end of resistor R25 is connected to one end of resistor R7 and terminal 8 of chip U1. The other end of resistor R7 is connected to the other end of capacitor C2. The other end of resistor R5 is connected to the other end of resistor R6, the other end of capacitor C3, one end of resistor R4, and terminal 7 of chip U1. The other end of resistor R4 is connected to one end of resistor R3.

[0079] Furthermore, the positive terminal of the diode D1 is connected to one end of the resistor R2, the other end of the resistor R3 is connected to the same terminal of the magnetic induction coil T1B, and the other end of the magnetic induction coil T1B is grounded.

[0080] Terminal 4 of the bridge BD1 is connected to one end of inductor L1, one end of resistor R1, and one end of resistor R9. The other end of resistor R9 is connected to one end of resistor R10, and the other end of resistor R10 is connected to terminal 1 of chip U1.

[0081] One end of capacitor CB1 is connected to the ground. The other end of capacitor CB1 is grounded. The other end of inductor L1 is connected to the other end of resistor R1, one end of capacitor CB2, one end of capacitor C4, one end of resistor R11, one end of resistor R12, one end of resistor R13, one end of capacitor CY4, and one end of magnetic coil T1A. The other end of capacitor C4 is connected to the other ends of resistors R11, R12, R13, R14, R15, R16, and R17. The other end of resistor R14 is connected to... The other ends of resistors R15, R16, and R17 are connected to the cathodes of diodes D2 and D3. The anode of diode D2 is connected to the anode of diode D3, terminal 6 of magnetic coil T1A, one end of capacitor C6, and terminal 2 of field-effect transistor Q1. Terminal 1 of field-effect transistor Q1 is connected to the anode of diode D5, one end of resistor R21, and one end of resistor R19. The other end of resistor R19 is connected to one end of resistor R20 and the cathode of diode D5. The other end of resistor R20 is connected to terminal 5 of chip U1.

[0082] Terminal 3 of chip U1 is connected to one end of resistor R26 and one end of capacitor C5. The other end of resistor R26 is connected to the other end of resistor R21, one end of resistor RS1, one end of resistor RS2, one end of resistor RS3, one end of resistor RS4, one end of resistor RS5 and terminal 3 of field-effect transistor Q1. The other end of capacitor C5 is connected to the other end of resistor RS1, the other end of resistor RS2, the other end of resistor RS3, the other end of resistor RS4, the other end of resistor RS5 and the other end of capacitor C6 and then grounded.

[0083] Furthermore, the other end of capacitor CY4 is connected to one end of capacitor C7, the positive terminal of diode group D4, and the corresponding terminal 10 of magnetic induction coil T1A. The other end of capacitor C7 is connected to one end of resistor R22 and one end of resistor R23. The negative terminal of diode group D4 is connected to the other end of resistor R22, the other end of resistor R23, one end of capacitor CE1, one end of capacitor CE2, one end of capacitor CE3, one end of capacitor CE7, one end of resistor R24, one end of capacitor C8, and the corresponding terminal 1 of magnetic induction coil LF3. The corresponding terminal 3 of magnetic induction coil LF3 is connected to the 24V output terminal. The corresponding terminal 9 of magnetic induction coil T1A is connected to the other end of capacitor CE1, the other end of capacitor CE2, the other end of capacitor CE3, the other end of capacitor CE7, the other end of resistor R24, the other end of capacitor C8, and the corresponding terminal 2 of magnetic induction coil LF3. The corresponding terminal 4 of magnetic induction coil LF3 is connected to the ground terminal.

[0084] Specifically, after AC-DC conversion, the output is DC24V, which powers the three-phase brushless DC motor of the fan and the LED system.

[0085] The DC24V is converted to DC5V by the LDO converter inside the main control MCU. This voltage powers the main control system MCU, RF wireless control circuit, buzzer, feedback signal and other circuits.

[0086] The DC24V is converted to DC36V through the BOOST conversion circuit, and this voltage powers the LED control circuit module.

[0087] Furthermore, the stepper motor control circuit includes chip U3, and terminal 1 of chip U3 is connected in series with resistor R82 and then connected to terminal 5 of chip U2.

[0088] The resistor R83 is connected in series with terminal 2 of chip U3 and then connected to terminal 6 of chip U2.

[0089] The 3rd terminal of chip U3 is connected in series with resistor R84 and then connected to the 19th terminal of chip U2.

[0090] The 4th terminal of chip U3 is connected in series with resistor R85 and then connected to the 18th terminal of chip U2.

[0091] Terminal 8 of chip U3 is connected to one end of capacitor C44 and one end of capacitor CE8, and then grounded. Terminal 9 of chip U3 is connected to the other end of capacitor C44, the other end of capacitor CE8, one end of capacitor C45, the operating voltage 24V, and terminal 1 of interface CN2. The other end of capacitor C45 is grounded. Terminal 13 of chip U3 is connected to terminal 2 of interface CN2. Terminal 14 of chip U3 is connected to terminal 3 of interface CN2. Terminal 15 of chip U3 is connected to terminal 4 of interface CN2. Terminal 16 of chip U3 is connected to terminal 5 of interface CN2.

[0092] Furthermore, the DC-DC BOOST boost circuit includes resistor R51. One end of resistor R51 is connected to terminal 3 of chip U2. The other end of resistor R51 is connected to one end of resistor R50, one end of capacitor C30, and terminal 2 of chip IC1. The other end of resistor R50 is connected to the other end of capacitor C30, one end of capacitor C28, and one end of capacitor C12, and then grounded. The other end of capacitor C28 is connected to terminal 1 of chip IC1. Terminal 3 of chip IC1 is connected to ground in series with capacitor C29. Terminal 4 of chip IC1 is connected to the IFB terminal. The other end of capacitor C12 is connected to one end of resistor R52 and terminal 8 of chip IC1. Terminal 7 of chip IC1 is connected to one end of resistor R59. The other end of resistor R59 is connected to one end of resistor R57 and the cathode of diode D6. Terminal 5 of chip IC1 is connected to the VFB terminal. Terminal 6 of chip IC1... The resistor R57 is connected to one end of resistor R53 and one end of capacitor C32 respectively. The other end of resistor R57 is connected to one end of resistor R56, one end of capacitor C17 and the gate terminal of MOSFET Q9 respectively. The other end of resistor R56 is connected to the other end of resistor R53, one end of resistor R54, one end of resistor R55, one end of capacitor C17 and the source terminal of MOSFET Q9 respectively. The other end of resistor R52 is connected to one end of inductor L6 and the operating voltage 24V respectively. The other end of inductor L6 is connected to the positive terminal of diode D7, the drain terminal of MOSFET Q9 and one end of resistor R58 respectively. The other end of resistor R58 is connected to one end of capacitor C9. The negative terminal of diode D7 is connected to the other end of capacitor C9, one end of resistor R60, one end of capacitor CAP1 and the first terminal of inductor group L3 respectively. The other end of resistor R60 is connected to one end of resistor R66 and the VFB terminal respectively.

[0093] Specifically, the LED driver circuit uses DC-DC Boost control (24V to 36V) to reduce the size of the transformer in the front-end power adapter, making transportation and installation easier. The driver circuit supports stepless dimming of the input analog voltage, as well as overvoltage and overcurrent protection. This driver circuit uses a boost converter at the front end and switches MOS at the back end to combine white light, yellow light, and mixed light alternately, effectively reducing the cost of circuit hardware.

[0094] Furthermore, the other end of capacitor CAP1 is connected to the other ends of resistors R61, R55, and R54, one end of capacitor C32, one end of resistor R67, and one end of resistor R68. The other end of resistor R67 is connected to the other end of resistor R68, one end of resistor R100, one end of resistor R63, one end of resistor R65, and terminals 3 and 1 of chip Q8. The other end of resistor R63 is connected to one end of resistor R62 and terminal 4 of chip Q8. The other end of resistor R65 is connected to one end of resistor R64 and terminal 2 of chip Q8. The resistor R62 is connected to terminal 21 of chip U2, the resistor R64 is connected to terminal 20 of chip U2, the resistor R100 is connected to the IFB terminal, terminal 5 of chip Q8 is connected to terminal 6 of chip Q8 and terminal 2 of inductor group L3, terminal 7 of chip Q8 is connected to terminal 8 of chip Q8 and terminal 3 of inductor group L3, terminal 4 of inductor group L3 is connected to terminal 1 of interface CN4, terminal 5 of inductor group L3 is connected to terminal 2 of interface CN4, and terminal 6 of inductor group L3 is connected to terminal 3 of interface CN4.

[0095] Furthermore, the RF remote control receiving circuit includes a capacitor C43. One end of the capacitor C43 is connected to terminal 23 of chip U2 and one end of resistor R81. The other end of resistor R81 is connected to terminal 5 of chip U4. The other end of the capacitor C43 is connected to terminal 6 of chip U4, one end of capacitor C42, and terminal 2 of crystal oscillator Y1, and then grounded. The other end of capacitor C42 is connected to terminal 7 of chip U4. Terminal 1 of crystal oscillator Y1 is connected to terminal 8 of chip U4.

[0096] Furthermore, terminal 1 of chip U4 is connected to one end of inductor L8, one end of inductor L7, and one end of capacitor C37, and then grounded. Terminal 2 of chip U4 is connected to the other end of inductor L8 and one end of capacitor C38, and the other end of capacitor C38 is connected to the other end of inductor L7, the other end of capacitor C37, and the ANT interface.

[0097] Terminal 3 of chip U4 is connected to one end of capacitor C39, one end of capacitor C40, and the operating voltage VDD5. Terminal 3 of chip U4 is connected to one end of capacitor C41. The other end of capacitor C39 is connected to the other end of capacitor C41 and the other end of capacitor C40.

[0098] The RF remote control circuit receives the RF signal and transmits it to the main control MCU. After receiving the corresponding signal, the main control MCU executes the running instructions defined by the software. The instructions mainly include fan on / off, natural wind, speed setting, fan direction, control of the oscillation switch, timing control, LED on / off, and stepless dimming control.

[0099] The fan motor drive circuit uses a three-phase brushless DC motor with characteristics such as long lifespan, high starting torque, and wide operating voltage range. The motor's drive modulation method adopts sensorless field vector control (FOC), which has the advantages of high operating efficiency, low noise, and stable output torque. The main control MCU estimates the motor's current position by collecting information such as the motor's bus voltage and phase current, and controls the amplitude and frequency of the inverter's output voltage to accurately control the motor's operation. The motor system's protection functions include: hardware overcurrent protection, software overcurrent protection, sampling error protection, undervoltage protection, overvoltage protection, phase loss protection, stall protection, starting protection, maximum speed and minimum speed monitoring protection, and maximum output power limiting protection. The main control MCU controls the motor's direction of rotation by controlling the direction of the conduction current in the stator's U, V, and W phases.

[0100] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fan-light control system integrating LED driving and airflow direction control, characterized in that, The control system includes a main control MCU, an electric power inverter control circuit, an AC-DC voltage conversion circuit, a stepper motor control circuit, a DC-DC BOOST boost circuit, an RF remote control receiver circuit, and a buzzer drive circuit. The main control MCU receives signals from the AC-DC voltage conversion circuit and the RF remote control receiving circuit. The main control MCU sends signals to the power inverter control circuit, the DC-DC BOOST boost circuit, the stepper motor control circuit, and the buzzer drive circuit. The AC-DC voltage conversion circuit sends signals to the power inverter control circuit, the stepper motor control circuit, and the DC-DC BOOST boost circuit, respectively.

2. The control system according to claim 1, characterized in that, The power inverter control circuit includes chip Q4. Terminal 4 of chip Q4 is connected to one end of resistor R37, one end of capacitor C20, and one end of resistor R36. The other end of resistor R36 is connected to terminal 9 of chip U2. Terminal 3 of chip Q4 is connected to the other end of resistor R37, the other end of capacitor C20, and the operating voltage of 24V. Terminal 2 of chip Q4 is connected to one end of resistor R39, one end of capacitor C21, and one end of resistor R38, respectively. The other end of resistor R38 is connected to terminal 10 of chip U2. Terminal 1 of chip Q4 is connected to the other end of resistor R39, the other end of capacitor C21, terminal 1 of chip Q6, the other end of resistor R47, the other end of capacitor C25, terminal 1 of chip Q5, the other end of resistor R43 and capacitor C23, one end of resistor RS8, and one end of resistor RP1. Terminal 4 of chip Q5 is connected to one end of resistor R41, one end of capacitor C22, and one end of resistor R40, respectively. The other end of resistor R40 is connected to terminal 11 of chip U2. Terminal 3 of chip Q5 is connected to the other end of resistor R41, the other end of capacitor C22, and the operating voltage of 24V. Terminal 2 of chip Q5 is connected to one end of resistor R43, one end of capacitor C23, and one end of resistor R42, respectively. The other end of resistor R42 is connected to terminal 12 of chip U2. Terminal 4 of chip Q6 is connected to one end of resistor R45, one end of capacitor C24, and one end of resistor R44, respectively. The other end of resistor R44 is connected to terminal 13 of chip U2. Terminal 3 of chip Q6 is connected to the other end of resistor R45, the other end of capacitor C24, and the operating voltage of 24V. Terminal 2 of chip Q6 is connected to one end of resistor R47, one end of capacitor C25, and one end of resistor R46, respectively. The other end of resistor R46 is connected to terminal 14 of chip U2. The other end of resistor RS8 is connected to one end of resistor RP2 and then grounded. The other end of the resistor RP1 is connected to one end of the capacitor C34 and terminal 16 of the chip U2. The other end of resistor RP2 is connected to the other end of capacitor C34 and terminal 17 of chip U2, respectively. The 5th to 8th terminals of the chip Q4 are connected to the 1st terminal of the inductor L4, and the 6th terminal of the inductor L4 is connected to the 3rd terminal of the interface CN3. The 5th to 8th terminals of the chip Q5 are connected to the 3rd terminal of the inductor L4, and the 5th terminal of the inductor L4 is connected to the 2nd terminal of the interface CN3. The 5th to 8th terminals of the chip Q6 are connected to the 3rd terminal of the inductor L4, and the 6th terminal of the inductor L4 is connected to the 1st terminal of the interface CN3.

3. The control system according to claim 1, characterized in that, The AC-DC voltage conversion circuit includes an interface CN1. Terminal 1 of interface CN1 is connected to one end of fuse F1. The other end of fuse F1 is connected to one end of sodium-ion diode VDR1 and the corresponding terminal 1 of magnetic induction coil LF1. Terminal 1 of interface CN1 is connected to one end of circuit breaker NTC1. The other end of circuit breaker NTC1 is connected to the other end of sodium-ion diode VDR1 and the corresponding terminal 2 of magnetic induction coil LF1. Terminal 3 of magnetic induction coil LF1 is connected to one end of resistor RX1 and capacitor C. One end of X1 is connected to the same-named end 1 of magnetic induction coil LF2. The four ends of magnetic induction coil LF1 are respectively connected to one end of resistor RX2, the other end of capacitor CX1, and the same-named end 2 of magnetic induction coil LF2. The other end of resistor RX1 is connected to the other end of resistor RX2. The three ends of magnetic induction coil LF2 are respectively connected to one end of capacitor CX2, one end of capacitor CY2, and end 1 of bridge BD1. The three ends of magnetic induction coil LF2 are respectively connected to one end of resistor CY1, the other end of capacitor CX2, and end 3 of bridge BD1. Terminal 3 of interface CN1 is connected to the other end of resistor CY1; Terminal 2 of the bridge circuit BD1 is connected to one end of capacitor CE4, one end of capacitor C1, one end of capacitor C2, one end of capacitor C3, one end of resistor R25, one end of resistor R5, one end of resistor R6, and terminal 4 of chip U1. The other end of capacitor CE4 is connected to the other end of capacitor C1, the cathode of diode D1, and terminal 6 of chip U1. The other end of resistor R25 is connected to one end of resistor R7 and terminal 8 of chip U1. The other end of resistor R7 is connected to the other end of capacitor C2. The other end of resistor R5 is connected to the other end of resistor R6, the other end of capacitor C3, one end of resistor R4, and terminal 7 of chip U1. The other end of resistor R4 is connected to one end of resistor R3.

4. The control system according to claim 3, characterized in that, The positive terminal of the diode D1 is connected to one end of the resistor R2, and the other end of the resistor R3 is connected to the same terminal of the magnetic induction coil T1B. The other end of the magnetic induction coil T1B is grounded. Terminal 4 of the bridge BD1 is connected to one end of inductor L1, one end of resistor R1, and one end of resistor R9. The other end of resistor R9 is connected to one end of resistor R10, and the other end of resistor R10 is connected to terminal 1 of chip U1. One end of capacitor CB1 is connected to the ground. The other end of capacitor CB1 is grounded. The other end of inductor L1 is connected to the other end of resistor R1, one end of capacitor CB2, one end of capacitor C4, one end of resistor R11, one end of resistor R12, one end of resistor R13, one end of capacitor CY4, and one end of magnetic coil T1A. The other end of capacitor C4 is connected to the other ends of resistors R11, R12, R13, R14, R15, R16, and R17. The other end of resistor R14 is connected to... The other ends of resistors R15, R16, and R17 are connected to the cathodes of diodes D2 and D3. The anode of diode D2 is connected to the anode of diode D3, terminal 6 of magnetic coil T1A, one end of capacitor C6, and terminal 2 of field-effect transistor Q1. Terminal 1 of field-effect transistor Q1 is connected to the anode of diode D5, one end of resistor R21, and one end of resistor R19. The other end of resistor R19 is connected to one end of resistor R20 and the cathode of diode D5. The other end of resistor R20 is connected to terminal 5 of chip U1. Terminal 3 of chip U1 is connected to one end of resistor R26 and one end of capacitor C5. The other end of resistor R26 is connected to the other end of resistor R21, one end of resistor RS1, one end of resistor RS2, one end of resistor RS3, one end of resistor RS4, one end of resistor RS5 and terminal 3 of field-effect transistor Q1. The other end of capacitor C5 is connected to the other end of resistor RS1, the other end of resistor RS2, the other end of resistor RS3, the other end of resistor RS4, the other end of resistor RS5 and the other end of capacitor C6 and then grounded.

5. The control system according to claim 4, characterized in that, The other end of capacitor CY4 is connected to one end of capacitor C7, the positive terminal of diode group D4, and the corresponding terminal 10 of magnetic induction coil T1A. The other end of capacitor C7 is connected to one end of resistor R22 and one end of resistor R23. The negative terminal of diode group D4 is connected to the other end of resistor R22, the other end of resistor R23, one end of capacitor CE1, one end of capacitor CE2, one end of capacitor CE3, one end of capacitor CE7, one end of resistor R24, one end of capacitor C8, and the corresponding terminal 1 of magnetic induction coil LF3. The corresponding terminal 3 of magnetic induction coil LF3 is connected to the 24V output terminal. The corresponding terminal 9 of magnetic induction coil T1A is connected to the other end of capacitor CE1, the other end of capacitor CE2, the other end of capacitor CE3, the other end of capacitor CE7, the other end of resistor R24, the other end of capacitor C8, and the corresponding terminal 2 of magnetic induction coil LF3. The corresponding terminal 4 of magnetic induction coil LF3 is connected to the ground terminal.

6. The control system according to claim 1, characterized in that, The stepper motor control circuit includes chip U3. Terminal 1 of chip U3 is connected in series with resistor R82 and then connected to terminal 5 of chip U2. The resistor R83 is connected in series with terminal 2 of chip U3 and then connected to terminal 6 of chip U2. The 3rd terminal of chip U3 is connected in series with resistor R84 and then connected to the 19th terminal of chip U2. The 4th terminal of chip U3 is connected in series with resistor R85 and then connected to the 18th terminal of chip U2. Terminal 8 of chip U3 is connected to one end of capacitor C44 and one end of capacitor CE8, and then grounded. Terminal 9 of chip U3 is connected to the other end of capacitor C44, the other end of capacitor CE8, one end of capacitor C45, the operating voltage 24V, and terminal 1 of interface CN2. The other end of capacitor C45 is grounded. Terminal 13 of chip U3 is connected to terminal 2 of interface CN2. Terminal 14 of chip U3 is connected to terminal 3 of interface CN2. Terminal 15 of chip U3 is connected to terminal 4 of interface CN2. Terminal 16 of chip U3 is connected to terminal 5 of interface CN2.

7. The control system according to claim 1, characterized in that, The DC-DC BOOST boost circuit includes resistor R51. One end of resistor R51 is connected to terminal 3 of chip U2. The other end of resistor R51 is connected to one end of resistor R50, one end of capacitor C30, and terminal 2 of chip IC1. The other end of resistor R50 is connected to the other end of capacitor C30, one end of capacitor C28, and one end of capacitor C12, and then grounded. The other end of capacitor C28 is connected to terminal 1 of chip IC1. Terminal 3 of chip IC1 is connected to ground in series with capacitor C29. Terminal 4 of chip IC1 is connected to the IFB terminal. The other end of capacitor C12 is connected to one end of resistor R52 and terminal 8 of chip IC1. Terminal 7 of chip IC1 is connected to one end of resistor R59. The other end of resistor R59 is connected to one end of resistor R57 and the cathode of diode D6. Terminal 5 of chip IC1 is connected to the VFB terminal. Terminal 6 of chip IC1... The resistor R57 is connected to one end of resistor R53 and one end of capacitor C32 respectively. The other end of resistor R57 is connected to one end of resistor R56, one end of capacitor C17 and the gate terminal of MOSFET Q9 respectively. The other end of resistor R56 is connected to the other end of resistor R53, one end of resistor R54, one end of resistor R55, one end of capacitor C17 and the source terminal of MOSFET Q9 respectively. The other end of resistor R52 is connected to one end of inductor L6 and the operating voltage 24V respectively. The other end of inductor L6 is connected to the positive terminal of diode D7, the drain terminal of MOSFET Q9 and one end of resistor R58 respectively. The other end of resistor R58 is connected to one end of capacitor C9. The negative terminal of diode D7 is connected to the other end of capacitor C9, one end of resistor R60, one end of capacitor CAP1 and the first terminal of inductor group L3 respectively. The other end of resistor R60 is connected to one end of resistor R66 and the VFB terminal respectively.

8. The control system according to claim 7, characterized in that, The other end of capacitor CAP1 is connected to the other ends of resistors R61, R55, and R54, one end of capacitor C32, one end of resistor R67, and one end of resistor R68. The other end of resistor R67 is connected to the other end of resistor R68, one end of resistor R100, one end of resistor R63, one end of resistor R65, and pins 3 and 1 of chip Q8. The other end of resistor R63 is connected to one end of resistor R62 and pin 4 of chip Q8. The other end of resistor R65 is connected to one end of resistor R64 and pin 2 of chip Q8. The other end of resistor R62 is connected to terminal 21 of chip U2; the other end of resistor R64 is connected to terminal 20 of chip U2; the other end of resistor R100 is connected to the IFB terminal; terminal 5 of chip Q8 is connected to terminal 6 of chip Q8 and terminal 2 of inductor group L3; terminal 7 of chip Q8 is connected to terminal 8 of chip Q8 and terminal 3 of inductor group L3; terminal 4 of inductor group L3 is connected to terminal 1 of interface CN4; terminal 5 of inductor group L3 is connected to terminal 2 of interface CN4; and terminal 6 of inductor group L3 is connected to terminal 3 of interface CN4.

9. The control system according to claim 1, characterized in that, The RF remote control receiver circuit includes a capacitor C43. One end of the capacitor C43 is connected to terminal 23 of chip U2 and one end of resistor R81. The other end of resistor R81 is connected to terminal 5 of chip U4. The other end of the capacitor C43 is connected to terminal 6 of chip U4, one end of capacitor C42, and terminal 2 of crystal oscillator Y1, and then grounded. The other end of capacitor C42 is connected to terminal 7 of chip U4. Terminal 1 of crystal oscillator Y1 is connected to terminal 8 of chip U4.

10. The control system according to claim 9, characterized in that, Terminal 1 of chip U4 is connected to one end of inductor L8, one end of inductor L7, and one end of capacitor C37, and then grounded. Terminal 2 of chip U4 is connected to the other end of inductor L8 and one end of capacitor C38. The other end of capacitor C38 is connected to the other end of inductor L7, the other end of capacitor C37, and the ANT interface. Terminal 3 of chip U4 is connected to one end of capacitor C39, one end of capacitor C40, and the operating voltage VDD5. Terminal 3 of chip U4 is connected to one end of capacitor C41. The other end of capacitor C39 is connected to the other end of capacitor C41 and the other end of capacitor C40.

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