Signal output circuit, massage device, and signal output method

Abstract

The application discloses a signal output circuit, a massage device and a signal output method. The signal output circuit comprises a first output circuit and a second output circuit. The first output circuit comprises a first conduction unit, a second conduction unit and a first voltage stabilizing unit which are used for being connected with a load. The second output circuit comprises a third conduction unit which is used for being connected with the load. The first conduction unit is connected with the first voltage stabilizing unit and is used for being connected with a power supply end. The second conduction unit is connected with the first voltage stabilizing unit and is used for being connected with a grounding end. The first voltage stabilizing unit is used for being connected with the power supply end. The third conduction unit is used for being connected with the grounding end. By connecting the first voltage stabilizing unit with the grounding end, the electric signal output by the power supply end and passing through the first conduction unit is in a safe range, so that the conduction condition of the first conduction unit and the safety of circuit devices can be ensured.

Description

Technical Field

[0001] This application belongs to the field of circuit design technology, and specifically relates to a signal output circuit, a massage device, and a signal output method. Background Technology

[0002] An H-bridge circuit, a control circuit, consists of four transistors arranged in an H-shape and can be used to switch the polarity of the load. H-bridge circuits are commonly used in massage devices or other applications to enable DC motors to rotate in either direction.

[0003] However, common H-bridge circuits are limited by voltage range or require dedicated driver chip circuits to assist in driving and conversion in order to work stably under circuit power supply above 20V, resulting in low safety of circuit components. Summary of the Invention

[0004] This application provides a signal output circuit, a massage device, and a signal output method, the technical solutions of which are as follows:

[0005] In a first aspect, embodiments of this application provide a signal output circuit, which includes a first output circuit and a second output circuit, wherein:

[0006] The first output circuit includes a first conducting unit, a second conducting unit, and a first voltage regulating unit for connection to a load; the second output circuit includes a third conducting unit for connection to a load.

[0007] The first conducting unit is connected to the first voltage regulating unit and is used to connect to the power supply terminal;

[0008] The second conducting unit is connected to the first voltage regulating unit and is used to connect to the ground terminal;

[0009] The first voltage regulator unit is used to connect to the power supply terminal;

[0010] The third conductive unit is used to connect to the ground terminal.

[0011] Secondly, embodiments of this application provide a massage device, which includes the signal output circuit provided in the first aspect of embodiments of this application.

[0012] Thirdly, embodiments of this application also provide a signal output method, which is applied to a signal output circuit. The signal output circuit includes a first output circuit and a second output circuit, wherein: the first output circuit includes a first conducting unit, a second conducting unit, and a first voltage regulating unit for connection to a load; the second output circuit includes a third conducting unit for connection to a load; the first conducting unit is connected to the first voltage regulating unit and is used to connect to a power supply terminal; the second conducting unit is connected to the first voltage regulating unit and is used to connect to a ground terminal; the first voltage regulating unit is used to connect to a power supply terminal; the third conducting unit is used to connect to a ground terminal; the signal output method includes:

[0013] When a high-level electrical signal is input to the second conduction unit, the first voltage regulator unit is connected to the ground terminal, and the electrical signal at the power supply terminal is input to the load based on the first conduction unit;

[0014] When a high-level electrical signal is input to the third conduction unit, the high-level electrical signal is input to the load based on the third conduction unit;

[0015] The load operates normally when an electrical signal and a high-level electrical signal are input to the power supply terminal.

[0016] In this embodiment, the signal output circuit may include a first output circuit and a second output circuit, wherein: the first output circuit includes a first conducting unit, a second conducting unit, and a first voltage regulating unit connected to the load; the second output circuit includes a third conducting unit connected to the load; the first conducting unit is connected to the first voltage regulating unit and to a power supply terminal; the second conducting unit is connected to the first voltage regulating unit and to a ground terminal; the first voltage regulating unit is connected to a power supply terminal; and the third conducting unit is connected to a ground terminal. By connecting the first voltage regulating unit to a ground terminal, the electrical signal output from the power supply terminal through the first conducting unit is kept within a safe range, ensuring not only the conduction condition of the first conducting unit but also the safety of the circuit components. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the circuit structure of a signal output circuit provided in an embodiment of this application;

[0019] Figure 2 A circuit structure diagram of a first voltage regulating unit and a first conduction unit provided for an embodiment of this application;

[0020] Figure 3 A schematic diagram of the circuit structure of a first output circuit provided in an embodiment of this application;

[0021] Figure 4 A schematic diagram of another signal output circuit provided in an embodiment of this application;

[0022] Figure 5 A schematic diagram of the circuit structure of a second output circuit provided in an embodiment of this application;

[0023] Figure 6 A schematic diagram of another signal output circuit provided in an embodiment of this application;

[0024] Figure 7 A circuit structure diagram of a second voltage regulating unit and a fourth conduction unit provided in an embodiment of this application;

[0025] Figure 8 A schematic diagram of the circuit structure of a third output circuit provided in an embodiment of this application;

[0026] Figure 9 A schematic diagram of the circuit structure of a third output circuit and a fourth output circuit provided in an embodiment of this application;

[0027] Figure 10 A schematic diagram of the circuit structure of a fourth output circuit provided in an embodiment of this application;

[0028] Figure 11 A schematic diagram of a specific signal output circuit provided in an embodiment of this application;

[0029] Figure 12 A schematic flowchart illustrating a signal output method provided in an embodiment of this application;

[0030] Figure 13 A pulse signal timing diagram provided in an embodiment of this application;

[0031] Figure 14 This is a schematic diagram of the structure of a signal output device provided in an embodiment of this application;

[0032] Figure 15 This is a schematic diagram of another signal output device provided in an embodiment of this application. Detailed Implementation

[0033] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0034] The terms "first," "second," "third," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0035] Please refer to Figure 1 This is a schematic diagram of the circuit structure of a signal output circuit provided in an embodiment of this application. Figure 1 As shown, the signal output circuit provided in this embodiment can be used to drive loads such as DC motors and air pumps. This signal output circuit can operate stably at frequencies below 30kHz and voltages below 36V. For example, this signal output circuit can be used to drive a motor in a massager, causing the motor to vibrate, thereby driving the massage head in the massager to output massage signals. The signal output circuit can serve as a drive signal output circuit.

[0036] The signal output circuit includes a first output circuit and a second output circuit. The first output circuit includes a first conducting unit, a second conducting unit, and a first voltage regulator unit for connection to a load. The second output circuit includes a third conducting unit for connection to a load. The first conducting unit is connected to the first voltage regulator unit and is also connected to a power supply terminal. The second conducting unit is connected to the first voltage regulator unit and is also connected to a ground terminal. The first voltage regulator unit is connected to a power supply terminal, and the third conducting unit is connected to a ground terminal.

[0037] For example, such as Figure 2 As shown, the first conducting unit can be the first transistor U4-A. The first voltage regulating unit includes a first voltage regulating diode D14 and a first voltage regulating resistor R17.

[0038] Specifically, the gate G2 of the first transistor U4-A is connected to the anode of the first Zener diode D14 and to the first terminal of the first Zener resistor R17. The source S2 of the first transistor U4-A is connected to the cathode of the first Zener diode D14 and is used to connect to the power supply terminal. The drain D2 of the first transistor U4-A is used to connect to the load MA. The anode of the first Zener diode D14 is connected to the first terminal of the first Zener resistor R17, and the cathode of the first Zener diode D14 is used to connect to the power supply terminal. The second terminal of the first Zener resistor R17 is connected to the second conducting unit. The voltage range of the power supply terminal is, for example, but not limited to, 3.3V-36V. The first transistor U4-A can be a PMOS. The voltage adjustment range of the first Zener diode D14 can be 3.0V-20V. The resistance adjustment range of the first Zener resistor R17 can be 2Ω-2000Ω. The power of the first Zener diode D14 can be greater than or equal to 0.2W.

[0039] For example, such as Figure 3 As shown, the second conducting unit includes a first conducting transistor Q2, a first resistor R1, and a second resistor R2.

[0040] Specifically, the base B of the first conducting transistor Q2 is connected to the first terminal of the first resistor R1 and to the first terminal of the second resistor R2. The emitter E of the first conducting transistor Q2 is connected to ground and to the second terminal of the second resistor R2. The collector C of the first conducting transistor Q2 is connected to the second terminal of the first voltage-regulating resistor R17. The second terminal of the first resistor R1 is connected to the signal output terminal of the controller 1. The signal output terminal of the controller 1 can be controlled by a controller (e.g., a microcontroller) to output pulse signals MOTOR_PWM1 with different duty cycles and timing combinations, thereby adjusting different output currents, voltages, or power. The controller 1 can control the conduction or cutoff of the first conducting transistor Q2. Specifically, when the MOTOR_PWM1 output by the controller 1 is high (i.e., on), the first conducting transistor Q2 is on; when the MOTOR_PWM1 output by the controller 1 is low (i.e., not outputting, or off), the first conducting transistor Q2 is off. When the first conducting transistor Q2 is turned on, the voltage at the power supply terminal (3.3V-36V) will pass through the first Zener diode D14 and the first Zener resistor R17. The first conducting transistor Q2 provides the conduction condition for the first transistor U4-A, and the appropriate first Zener diode D14 and first Zener resistor R17 ensure that the gate-source voltage of the first transistor U4-A is within a safe range, thereby effectively ensuring the safety of the first transistor U4-A.

[0041] Furthermore, such as Figure 4 As shown, in Figure 3Based on the provided first output circuit, the second output circuit includes a third conducting unit including a second transistor U7-B, and the second output circuit also includes a first voltage divider unit.

[0042] Specifically, the gate G1 of the second transistor U7-B is connected to the first voltage divider unit, the source S1 of the second transistor U7-B is connected to the ground terminal, and the drain D1 of the second transistor U7-B is connected to the load MB. The first voltage divider unit is connected to the ground terminal and also to the signal output terminal of the controller 4. The second transistor U7-B can be an NMOS transistor. The signal output terminal of the controller 4 can be controlled by a controller (e.g., a microcontroller) to output pulse signals MOTOR_PWM4 with different duty cycles and timing combinations, thereby adjusting different output currents, voltages, or power. The controller 4 can control the conduction or cutoff of the second transistor U7-B. Specifically, when the MOTOR_PWM4 output by the controller 4 is high (i.e., on), the second transistor U7-B is on; when the MOTOR_PWM4 output by the controller 4 is low (i.e., no output, or off), the second transistor U7-B is off.

[0043] Specifically, such as Figure 5 As shown, the first voltage divider unit may include a third resistor R41 and a fourth resistor R22. The first terminal of the third resistor R41 is connected to the gate G1 of the second transistor U7-B and to the first terminal of the fourth resistor R22. The second terminal of the third resistor R41 is connected to the signal output terminal of the controller 4, and the second terminal of the fourth resistor R22 is connected to the ground terminal. The MOTOR_PWM4 signal enables the second transistor U7-B to conduct normally through the third resistor R41 and the fourth resistor R22. When MOTOR_PWM1 and MOTOR_PWM4 are turned on, MOTOR_PWM1 turns on the first conducting transistor Q2. The voltage at the power supply terminal (3.3V-36V) passes through the first Zener diode D14 and the first Zener resistor R17. The first conducting transistor Q2 provides the conditions for the first transistor U4-A. MOTOR_PWM4 turns on the second transistor U7-B through the third resistor R41 and the fourth resistor R22. At this time, the loads on MA and MB can operate normally. Load MA and load MB can be understood as two polarity terminals (MA terminal and MB terminal) of the same load, with opposite polarities. For example, if the MA terminal is positive, then the MB terminal is negative, meaning load MA represents the positive terminal of the load, and load MB represents the negative terminal. Conversely, if the MA terminal is negative, then the MB terminal is positive, meaning load MA represents the negative terminal of the load, and load MB represents the positive terminal.

[0044] In related technologies, conventional H-bridge circuits are limited by voltage range or require dedicated driver chips for driving and conversion in order to operate stably under power supplies above 20V. Furthermore, these circuits have a large load and numerous components, or require dedicated driver chips for operation. To address these shortcomings, this application also provides a signal output circuit.

[0045] Specifically, the signal output circuit provided in this application embodiment includes, in addition to, Figure 1 In addition to the first and second output circuits shown, a third and fourth output circuit may also be included. For example... Figure 6 As shown, the third output circuit includes a fourth conducting unit, a fifth conducting unit, and a second voltage regulator unit for connection to the load. The fourth output circuit includes a sixth conducting unit for connection to the load. The fourth conducting unit is connected to the second voltage regulator unit and is also connected to the power supply terminal. The fifth conducting unit is connected to the second voltage regulator unit and is also connected to the ground terminal. The second voltage regulator unit is connected to the power supply terminal, and the sixth conducting unit is connected to the ground terminal.

[0046] For example, such as Figure 7 As shown, the fourth conducting unit includes the third transistor U7-A. The second voltage regulating unit may include the second Zener diode D15 and the second voltage regulating resistor R42.

[0047] Specifically, the gate G2 of the third transistor U7-A is connected to the anode of the second Zener diode D15 and to the first terminal of the second Zener resistor R42. The source S2 of the third transistor U7-A is connected to the cathode of the second Zener diode D15 and is used to connect to the power supply terminal. The drain D2 of the third transistor U7-A is used to connect to the load MB. The anode of the second Zener diode D15 is connected to the first terminal of the second Zener resistor R42, and the cathode of the second Zener diode D15 is used to connect to the power supply terminal. The second terminal of the second Zener resistor R42 is connected to the fifth conducting unit. The voltage range of the power supply terminal is, for example, but not limited to, 3.3V-36V. The third transistor U7-A can be a PMOS. The voltage adjustment range of the second Zener diode D15 can be 3.0V-20V, and the resistance adjustment range of the second Zener resistor R42 can be 2Ω-2000Ω. The power of the second Zener diode D15 can be greater than or equal to 0.2W.

[0048] For example, such as Figure 8 As shown, the fifth conducting unit may include the second conducting transistor Q14, the fifth resistor R5, and the sixth resistor R6.

[0049] Specifically, the base (B) of the second transistor Q14 is connected to the first terminal of the fifth resistor R5 and the first terminal of the sixth resistor R6. The emitter (E) of the second transistor Q14 is connected to ground and to the second terminal of the sixth resistor R6. The collector (C) of the second transistor Q14 is connected to the second terminal of the second voltage-regulating resistor R42. The second terminal of the fifth resistor R5 is connected to the signal output terminal of the controller 3. The signal output terminal of the controller 3 can be controlled by a controller (e.g., a microcontroller) to output pulse signals MOTOR_PWM3 with different duty cycles and timing combinations, thereby adjusting different output currents, voltages, or power. The controller 3 can control the conduction or cutoff of the second transistor Q14. Specifically, when the MOTOR_PWM3 output by the controller 3 is high (i.e., on), the second transistor Q14 is on; when the MOTOR_PWM3 output by the controller 3 is low (i.e., not outputting, or off), the second transistor Q14 is off. When the second conducting transistor Q14 is turned on, the voltage at the power supply terminal of 3.3V-36V will pass through the second Zener diode D15 and the second Zener resistor R42. The second conducting transistor Q14 provides the conduction condition for the third transistor U7-A, and the appropriate second Zener diode D15 and the second Zener resistor R42 ensure that the gate-source voltage of the third transistor U7-A is within a safe range, thereby effectively ensuring the safety of the third transistor U7-A.

[0050] Furthermore, such as Figure 9 As shown, in Figure 8 Based on the provided third output circuit, the sixth conducting unit in the fourth output circuit can be the fourth transistor U4-B, and the fourth output unit also includes a second voltage divider unit.

[0051] Specifically, the gate G1 of the fourth transistor U4-B is connected to the second voltage divider unit, the source S1 of the fourth transistor U4-B is connected to the ground terminal, and the drain D1 of the fourth transistor U4-B is connected to the load MA. The second voltage divider unit is connected to the ground terminal and also to the signal output terminal of the controller 2. The fourth transistor U4-B can be an NMOS transistor. The signal output terminal of the controller 2 can be controlled by a controller (e.g., a microcontroller) to output pulse signals MOTOR_PWM2 with different duty cycles and timing combinations, thereby adjusting different output currents, voltages, or power. The controller 2 can control the conduction or cutoff of the fourth transistor U4-B. Specifically, when the MOTOR_PWM2 output by the controller 2 is high (i.e., on), the fourth transistor U4-B is on; when the MOTOR_PWM2 output by the controller 2 is low (i.e., no output, or off), the fourth transistor U4-B is off.

[0052] Specifically, such as Figure 10As shown, the second voltage divider unit may include a seventh resistor R16 and an eighth resistor R13. The first terminal of the seventh resistor R16 is connected to the gate G1 of the fourth transistor U4-B and to the first terminal of the eighth resistor R13. The second terminal of the seventh resistor R16 is connected to the signal output terminal of the controller 2, and the second terminal of the eighth resistor R13 is connected to the ground terminal. The MOTOR_PWM3 signal, through the seventh resistor R16 and the eighth resistor R13, enables the fourth transistor U4-B to conduct normally. When MOTOR_PWM2 and MOTOR_PWM3 are on, and MOTOR_PWM1 and MOTOR_PWM4 are off, MOTOR_PWM3 turns on the second conducting transistor Q14. The 3.3V-36V voltage at the power supply terminal passes through the second Zener diode D15 and the second Zener resistor R42. The second conducting transistor Q14 provides the conditions for the third transistor U7-A. MOTOR_PWM2, through the seventh resistor R16 and the eighth resistor R13, enables the fourth transistor U4-B to conduct. At this time, the loads on MA and MB can operate normally.

[0053] Figure 11 An exemplary circuit diagram of a specific signal output circuit provided in an embodiment of this application is shown. Figure 11 As shown, the signal output circuit includes: a first output circuit, a second output circuit, a third output circuit, and a fourth output circuit. Wherein:

[0054] The first output circuit includes: a first transistor U4-A, a first conducting transistor Q2, a first resistor R1, a second resistor R2, a first Zener diode D14, and a first Zener resistor R17.

[0055] In this configuration, the gate G2 of the first transistor U4-A is connected to the anode of the first Zener diode D14 and to the first terminal of the first voltage-regulating resistor R17. The source S2 of the first transistor U4-A is connected to the cathode of the first Zener diode D14 and to the power supply terminal. The drain D2 of the first transistor U4-A is connected to the load MA. The anode of the first Zener diode D14 is connected to the first terminal of the first voltage-regulating resistor R17, and the cathode of the first Zener diode D14 is connected to the power supply terminal. The second terminal of the first voltage-regulating resistor R17 is connected to the collector C of the first conducting transistor Q2. The base B of the first conducting transistor Q2 is connected to the first terminal of the first resistor R1 and to the first terminal of the second resistor R2. The emitter E of the first conducting transistor Q2 is connected to the ground terminal and to the second terminal of the second resistor R2. The second terminal of the first resistor R1 is connected to the signal output terminal of the controller 1.

[0056] The second output circuit includes: a second transistor U7-B, a third resistor R41, and a fourth resistor R22.

[0057] In this configuration, the gate G1 of the second transistor U7-B is connected to the first terminal of the third resistor R41, the source S1 of the second transistor U7-B is connected to the ground terminal, and the drain D1 of the second transistor U7-B is connected to the load MB. The first terminal of the third resistor R41 is also connected to the first terminal of the fourth resistor R22. The second terminal of the third resistor R41 is connected to the signal output terminal of the controller 4, and the second terminal of the fourth resistor R22 is connected to the ground terminal.

[0058] The third output circuit includes: a third transistor U7-A, a second conducting transistor Q14, a fifth resistor R5, a sixth resistor R6, a second Zener diode D15, and a second Zener resistor R42.

[0059] In this configuration, the gate G2 of the third transistor U7-A is connected to the anode of the second Zener diode D15 and to the first terminal of the second Zener resistor R42. The source S2 of the third transistor U7-A is connected to the cathode of the second Zener diode D15 and is used to connect to the power supply. The drain D2 of the third transistor U7-A is used to connect to the load MB. The anode of the second Zener diode D15 is connected to the first terminal of the second Zener resistor R42, and the cathode of the second Zener diode D15 is used to connect to the power supply. The second terminal of the second Zener resistor R42 is connected to the collector C of the second transistor Q14. The base B of the second transistor Q14 is connected to the first terminal of the fifth resistor R5 and to the first terminal of the sixth resistor R6. The emitter E of the second transistor Q14 is used to connect to the ground terminal and to the second terminal of the sixth resistor R6. The second terminal of the fifth resistor R5 is used to connect to the signal output terminal of the controller 3.

[0060] The fourth output circuit includes: the fourth transistor U4-B, the seventh resistor R16, and the eighth resistor R13.

[0061] In this configuration, the gate G1 of the fourth transistor U4-B is connected to the first terminal of the seventh resistor R16, the source S1 of the fourth transistor U4-B is connected to the ground terminal, and the drain D1 of the fourth transistor U7-B is connected to the load MA. The first terminal of the seventh resistor R16 is also connected to the first terminal of the eighth resistor R13. The second terminal of the seventh resistor R16 is connected to the signal output terminal of the controller 2, and the second terminal of the eighth resistor R13 is connected to the ground terminal.

[0062] In this circuit, the first Zener diode D14, the second Zener diode D15, the first Zener resistor R17, and the second Zener resistor R42 are fine-tuned according to different voltage ranges. The voltage adjustment range of the first Zener diode D14 and the second Zener diode D15 can be 3.0V-20V, and the resistance adjustment range of the first Zener resistor R17 and the second Zener resistor R42 can be 2Ω-2000Ω. The first transistor U4-A and the third transistor U7-A can both be PMOS, and the fourth transistor U4-B and the second transistor U7-B can both be NMOS. The first Zener diode D14 and the second Zener diode D15 are Zener diodes. This circuit is a wide-voltage H-bridge circuit that can operate stably below 30kHz and below 36V. MOTOR_PWM1, MOTOR_PWM2, MOTOR_PWM3, and MOTOR_PWM4 are controlled by a controller (e.g., a microcontroller) to output different duty cycles and timing combinations, which can adjust different output currents, voltages, or power.

[0063] When MOTOR_PWM1 and MOTOR_PWM4 are turned on, and MOTOR_PWM2 and MOTOR_PWM3 are turned off, MOTOR_PWM1 turns on the first transistor Q2. The 3.3V-36V voltage passes through the first Zener diode D14 and the first Zener resistor R17. The first transistor Q2 provides the conduction condition for the first transistor U4-A, and the appropriate Zener diode D14 and first Zener resistor R17 ensure that the gate-source voltage of the first transistor U4-A is within the safe range, so the first transistor U4-A conducts normally. The MOTOR_PWM4 signal turns on the second transistor U7-B normally through the third resistor R41 and the fourth resistor R22. At this time, the loads on MA and MB can work normally.

[0064] When MOTOR_PWM2 and MOTOR_PWM3 are turned on, and MOTOR_PWM1 and MOTOR_PWM4 are turned off, MOTOR_PWM3 turns on the second transistor Q14. The 3.3V-36V voltage passes through the second Zener diode D15 and the second Zener resistor R42. The second transistor Q14 provides the conduction condition for the third transistor U7-A, and the appropriate second Zener diode D15 and second Zener resistor R42 ensure that the gate-source voltage of the third transistor U7-A is within the safe range, so the third transistor U7-A conducts normally. The MOTOR_PWM2 signal turns on the fourth transistor U4-B normally through the seventh resistor R16 and the eighth resistor R13. At this time, the loads on MA and MB can work normally, only the load polarity is reversed.

[0065] Specifically, when MOTOR_PWM1 and MOTOR_PWM4 are on and MOTOR_PWM2 and MOTOR_PWM3 are off, the polarity of the MA and MB terminals of the load is opposite to that when MOTOR_PWM2 and MOTOR_PWM3 are on and MOTOR_PWM1 and MOTOR_PWM4 are off. For example, when MOTOR_PWM1 and MOTOR_PWM4 are on and MOTOR_PWM2 and MOTOR_PWM3 are off, the MA terminal of the load is positive and the MB terminal is negative. Then, when MOTOR_PWM2 and MOTOR_PWM3 are on and MOTOR_PWM1 and MOTOR_PWM4 are off, the MA terminal is negative and the MB terminal is positive.

[0066] It is understood that the signal output circuit provided in this application embodiment is an H-bridge circuit. In this circuit, the first output circuit can be regarded as the upper left transistor of the H-bridge circuit, the second output circuit as the lower right transistor of the H-bridge circuit, the third output circuit as the upper right transistor of the H-bridge circuit, and the fourth output circuit as the lower left transistor of the H-bridge circuit. When MOTOR_PWM1 and MOTOR_PWM4 are turned on and MOTOR_PWM2 and MOTOR_PWM3 are turned off, the upper left transistor and the lower right transistor are turned on as a combination, and the upper right transistor and the lower left transistor are turned off as a combination. At this time, the load is driven to work through the upper left transistor and the lower right transistor. When MOTOR_PWM1 and MOTOR_PWM4 are turned off and MOTOR_PWM2 and MOTOR_PWM3 are turned on, the upper left transistor and the lower right transistor are turned off as a combination, and the upper right transistor and the lower left transistor are turned on as a combination. At this time, the load is driven to work through the upper right transistor and the lower left transistor.

[0067] The signal output circuit provided in this application embodiment, on the one hand, can connect to the ground terminal through two Zener diodes (Q2 and Q14), and with appropriate Zener diodes and Zener resistors, ensure that the electrical signal output from the power supply terminal through the two PMOS transistors is within a safe range. This not only guarantees the conduction condition of the two PMOS transistors (U4-A and U7-A), but also ensures that the gate-source voltage (GS) of the two PMOS transistors does not exceed the safe range, thus guaranteeing the safety of the two PMOS transistors. On the other hand, the signal output circuit provided in this application embodiment uses fewer components and has a simpler circuit structure compared to related technologies, which helps in product miniaturization. Furthermore, the signal output circuit provided in this application embodiment, through the Zener diodes, can achieve a wider range of voltage and frequency applications. A wider range of applications facilitates the standardized use of the circuit, saves product debugging and development time, facilitates functional modularization, and reduces hardware design complexity and overall product cost. Finally, the signal output circuit provided in this application embodiment can also drive different loads by outputting different pulse signals (MOTOR_PWM1-MOTOR_PWM4) through the controller (for example, by using different timing sequences of the pulse signals, the upper left and lower right transistors, and the combination of the lower left and upper right transistors of the H-bridge circuit can be turned on alternately), thereby making the signal output circuit provided in this application embodiment more widely applicable.

[0068] This application also provides a massage device, which may include the aforementioned... Figures 1-11 The embodiment includes a signal output circuit. In specific implementations, the massage device may be, for example, a fascia gun, a head massager, a neck massager, a waist massager, an eye massager, or a knee massager. The massage device may also be a physiotherapy device, but this application embodiment does not limit this.

[0069] Figure 12 A schematic flowchart of a signal output method provided in an embodiment of this application is illustrated. This signal output method can be applied to the aforementioned... Figures 1-5 The embodiment provides a signal output circuit. This signal output circuit includes a first output circuit and a second output circuit, wherein: the first output circuit includes a first conducting unit, a second conducting unit, and a first voltage regulating unit for connection to a load; the second output circuit includes a third conducting unit for connection to a load; the first conducting unit is connected to the first voltage regulating unit and is used to connect to a power supply terminal; the second conducting unit is connected to the first voltage regulating unit and is used to connect to a ground terminal; the first voltage regulating unit is used to connect to a power supply terminal; and the third conducting unit is used to connect to a ground terminal.

[0070] like Figure 12 As shown, the signal output method may include the following steps:

[0071] S1201: When a high-level electrical signal is input to the second conduction unit, the first voltage regulator unit is connected to the ground terminal, and the electrical signal at the power supply terminal is input to the load based on the first conduction unit.

[0072] Specifically, by making the pulse signal output by the controller high, a high-level signal can be input to the second conduction unit, thereby turning on the second conduction unit. After the second conduction unit is turned on, the first voltage regulator unit can be connected to the ground terminal, so that the electrical signal at the power supply terminal can be input to the load based on the first conduction unit.

[0073] For example, please refer to Figure 4 In this embodiment, the pulse signal (MOTOR_PWM1) output by the controller 1 is set to a high level, thereby inputting a high-level signal to the second conducting unit (Q2, R1, R2), which turns on the first conducting transistor Q2 in the second conducting unit. After the first conducting transistor Q2 in the second conducting unit is turned on, the first voltage regulator unit (D14, R17) can be connected to the ground terminal through the emitter E of the first conducting transistor Q2, so that the electrical signal at the power supply terminal can be input to the load MA terminal based on the first conducting unit U4-A.

[0074] S1202: When a high-level electrical signal is input to the third conduction unit, the high-level electrical signal is input to the load based on the third conduction unit.

[0075] Specifically, a high-level signal can be input to the third conduction unit by setting the pulse signal output by the controller to a high level, thereby turning on the third conduction unit. Once the third conduction unit is turned on, a high-level electrical signal can be input to the load based on the third conduction unit.

[0076] For example, please continue to refer to Figure 4 In this embodiment of the application, the pulse signal MOTOR_PWM4 output by the controller 4 can be set to a high level, thereby inputting a high-level signal to the third conduction unit (second transistor U7-B) to turn on the second transistor U7-B, so that the high-level signal can be input to the load MB terminal based on the second transistor U7-B of the third conduction unit.

[0077] S1203: When the power supply terminal electrical signal and the high-level electrical signal are input to the load, the load operates normally.

[0078] Specifically, the load can work normally when the MA terminal of the load is supplied with an electrical signal from the power supply and the MB terminal of the load is supplied with a high-level signal.

[0079] The embodiments of this application can be described in the foregoing Figures 1-5The signal output circuit provided in this embodiment drives the load to work normally. On the one hand, the signal output circuit can ensure the safety of the circuit devices, and on the other hand, it can also ensure the normal operation of the load.

[0080] Furthermore, this signal output method can also be applied to the aforementioned Figures 6-11 The embodiment provides a signal output circuit. In addition to a first output circuit and a second output circuit, the signal output circuit also includes a third output circuit and a fourth output circuit. The third output circuit includes a fourth conducting unit, a fifth conducting unit, and a second voltage regulating unit connected to the load. The fourth output circuit includes a sixth conducting unit connected to the load. The fourth conducting unit is connected to the second voltage regulating unit and to a power supply terminal. The fifth conducting unit is connected to the second voltage regulating unit and to a ground terminal. The second voltage regulating unit is connected to a power supply terminal. The sixth conducting unit is connected to a ground terminal.

[0081] At this point, the signal output method provided in this application embodiment may further include the following steps:

[0082] S1204: When a high-level electrical signal is input to the fifth conduction unit, the second voltage regulator unit is connected to the ground terminal, and the electrical signal at the power supply terminal is input to the load based on the fourth conduction unit.

[0083] Specifically, by making the pulse signal output by the controller high, a high-level signal can be input to the second conduction unit, thereby turning on the second conduction unit. After the second conduction unit is turned on, the first voltage regulator unit can be connected to the ground terminal, so that the electrical signal at the power supply terminal can be input to the load based on the first conduction unit.

[0084] For example, please refer to Figure 11 In this embodiment, the pulse signal MOTOR_PWM3 output by the controller 3 is set to a high level, thereby inputting a high-level signal to the fifth conduction unit (Q14, R5, R6), which turns on the second conduction transistor Q14 in the fifth conduction unit. After the second conduction transistor Q14 in the fifth conduction unit is turned on, the second voltage regulator unit (D15, R42) can be connected to the ground terminal through the emitter E of the second conduction transistor Q14, so that the electrical signal at the power supply terminal can be input to the load MB terminal based on the fourth conduction unit U7-A.

[0085] S1205: When a high-level electrical signal is input to the sixth conduction unit, the high-level electrical signal is input to the load based on the sixth conduction unit.

[0086] Specifically, a high-level signal can be input to the sixth conduction unit by setting the pulse signal output by the controller to a high level, thereby turning on the sixth conduction unit. Once the sixth conduction unit is turned on, a high-level electrical signal can be input to the load based on the sixth conduction unit.

[0087] For example, please continue to refer to Figure 11 In this embodiment of the application, the pulse signal MOTOR_PWM2 output by the controller 2 can be set to a high level, thereby inputting a high-level signal to the sixth conduction unit (fourth transistor U4-B) to turn on the fourth transistor U4-B, so that the high-level signal can be input to the load MA terminal based on the sixth conduction unit (fourth transistor U4-B).

[0088] S1206: The load operates normally when an electrical signal and a high-level electrical signal are input to the power supply terminal.

[0089] Specifically, the load can work normally when the MB terminal of the load is supplied with an electrical signal from the power supply and the MA terminal of the load is supplied with a high-level signal.

[0090] It should be noted that steps S1201-S1203 and steps S1204-S1206 can be executed in groups. That is, steps S1201-S1203 can be executed during a certain period, and steps S1204-S1206 can be executed during another period. Furthermore, the polarity of the load terminals (MA and MB terminals) during the execution of steps S1201-S1203 is opposite to the polarity during the execution of steps S1204-S1206. For details, please refer to [reference needed]. Figure 11 The relevant descriptions in the embodiments will not be repeated here.

[0091] Furthermore, it should be noted that the prerequisite for executing steps S1201-S1203 is that the pulse signals MOTOR_PWM1 output by controller 1 and MOTOR_PWM4 output by controller 4 are synchronously held at a high level, while the pulse signals MOTOR_PWM2 output by controller 2 and MOTOR_PWM3 output by controller 3 are synchronously held at a low level. Conversely, the prerequisite for executing steps S1204-S1206 is that the pulse signals MOTOR_PWM1 output by controller 1 and MOTOR_PWM4 output by controller 4 are synchronously held at a low level, while the pulse signals MOTOR_PWM2 output by controller 2 and MOTOR_PWM3 output by controller 3 are synchronously held at a high level.

[0092] Specifically, the timing of when the pulse signals output by controllers 1-4 are high or low can be pre-programmed and burned into each controller by the R&D personnel. Then, by powering on each module (i.e., the power supply connected to the first voltage regulator unit and the power supply connected to the second voltage regulator unit), controllers 1-4 output the expected timing sequence (i.e., when the pulse signals output by each controller are high), thereby achieving the alternating conduction of the upper left and lower right transistors, and the lower left and upper right transistors, in the H-bridge circuit. The controllers 1-4 provided in this embodiment are, for example, but not limited to, microcontroller units (MCUs), and this embodiment does not limit this to specific types.

[0093] For example, Figure 13 The following is a timing diagram of the signals output by controller 1 to controller 4, namely MOTOR_PWM1 to MOTOR_PWM4.

[0094] like Figure 13 As shown, it can be preset that MOTOR_PWM1 and MOTOR_PWM4 are high level and MOTOR_PWM2 and MOTOR_PWM3 are low level during time period T1. It can also be preset that MOTOR_PWM1 and MOTOR_PWM4 are low level and MOTOR_PWM2 and MOTOR_PWM3 are high level during time period T2. These settings are then programmed into each controller. In actual use, controllers 1 and 4 can output a high level during time period T1, and controllers 2 and 3 can output a low level during time period T1. Then, controllers 1 and 4 can output a low level during time period T2, and controllers 2 and 3 can output a high level during time period T2.

[0095] It can be seen that when MOTOR_PWM1 (pulse signal output by controller 1) and MOTOR_PWM4 (pulse signal output by controller 4) are high, and MOTOR_PWM2 (pulse signal output by controller 2) and MOTOR_PWM3 (pulse signal output by controller 3) are low, the upper left and lower right transistors of the H-bridge circuit are turned on as a combination, and the upper right and lower left transistors are turned off as a combination. The load is driven by the upper left and lower right transistors. During time period T2, MOTOR_PWM1 and MOTOR_PWM4 are low, and MOTOR_PWM2 and MOTOR_PWM3 are high. At this time, the lower left and lower right transistors of the H-bridge circuit are turned off as a combination, and the upper right and lower left transistors are turned on as a combination. The load is driven by the upper right and lower left transistors.

[0096] The embodiments of this application can be described in the foregoing Figures 6-11The signal output circuit provided in the embodiment drives the load to work normally. Specifically, it drives different loads by outputting different pulse signals (MOTOR_PWM) through the controller (for example, by using different timing sequences of the pulse signals, the upper left and lower right transistors, or the combination of the lower left and upper right transistors of the H-bridge circuit, can be turned on alternately).

[0097] Please refer to Figure 14 This is a schematic diagram of the structure of a signal output device provided in an embodiment of this application.

[0098] For example, such as Figure 14 As shown, the signal output device 140 includes: a first input module 1410, a second input module 1420, and a processing module 1430. The signal processing device 140 is applied to a signal output circuit, which includes a first output circuit and a second output circuit. The first output circuit includes a first conducting unit, a second conducting unit, and a first voltage regulating unit for connection to a load. The second output circuit includes a third conducting unit for connection to the load. The first conducting unit is connected to the first voltage regulating unit and is used to connect to a power supply terminal. The second conducting unit is connected to the first voltage regulating unit and is used to connect to a ground terminal. The first voltage regulating unit is used to connect to a power supply terminal. The third conducting unit is used to connect to a ground terminal.

[0099] The first input module 1410 is used to connect the first voltage regulator unit and the ground terminal when a high-level electrical signal is input to the second conduction unit, and the electrical signal at the power supply terminal is input to the load based on the first conduction unit.

[0100] The second input module 1420 is used to input a high-level electrical signal to the load based on the third conduction unit when a high-level electrical signal is input to the third conduction unit.

[0101] The processing module 1430 is used to ensure that the load operates normally when an electrical signal and a high-level electrical signal are input to the power supply terminal of the load.

[0102] The division of modules in the above-described signal output device is for illustrative purposes only. In other embodiments, the signal output device can be divided into different modules as needed to complete all or part of the functions of the signal output device. The implementation of each module in the signal output device provided in the embodiments of this specification can be in the form of a computer program. This computer program can run on a terminal or server. The program modules constituted by this computer program can be stored in the memory of the terminal or server. When the computer program is executed by a processor, it implements all or part of the steps of the signal output method described in the embodiments of this specification.

[0103] Figure 15 This is a schematic diagram of the structure of a signal output device provided in an embodiment of this application.

[0104] For example, such as Figure 15 As shown, the signal output device 150 includes a processor 1510 and a memory 1520.

[0105] In one possible implementation, memory 1520 is used to store executable program code 1521, and processor 1510 is used to call and execute executable program code 1521 to implement a signal output method, for example, Figure 12 Steps S1201 to S1203 in the process.

[0106] This application also provides a computer-readable storage medium storing instructions that, when executed on a computer or processor, cause the computer or processor to perform the above-described instructions. Figure 12 One or more steps in the illustrated embodiment. If the constituent modules of the above-described signal output device are implemented as software functional units and sold or used as independent products, they can be stored in the computer-readable storage medium.

[0107] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially as a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital versatile discs (DVDs)), or semiconductor media (e.g., solid-state drives (SSDs)).

[0108] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the methods described above. The aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks. Unless otherwise specified, the technical features of this embodiment and its implementation can be combined arbitrarily.

[0109] The embodiments described above are merely preferred embodiments of this application and are not intended to limit the scope of this application. Any modifications and improvements made by those skilled in the art to the technical solutions of this application without departing from the spirit of this application should fall within the protection scope defined by the claims of this application.

Claims

1. A signal output circuit, characterized in that, The signal output circuit includes a first output circuit and a second output circuit, wherein: The first output circuit includes a first conducting unit, a second conducting unit, and a first voltage regulating unit for connection to the load; the second output circuit includes a third conducting unit for connection to the load. The first conducting unit is connected to the first voltage regulating unit and is used to connect to the power supply terminal; The second conducting unit is connected to the first voltage regulating unit and is used to connect to the ground terminal; The first voltage regulator unit is used to connect to the power supply terminal; The third conductive unit is used to connect to the grounding terminal; The first conducting unit includes a first transistor, and the first voltage regulating unit includes a first voltage regulating diode and a first voltage regulating resistor. The gate of the first transistor is connected to the positive terminal of the first Zener diode and to the first terminal of the first Zener resistor; The source of the first transistor is connected to the negative terminal of the first Zener diode and is used to connect to the power supply terminal; The drain of the first transistor is used to connect to the load; The positive terminal of the first Zener diode is connected to the first end of the first Zener resistor, and the negative terminal of the first Zener diode is used to connect to the power supply terminal; The second end of the first voltage-stabilizing resistor is connected to the second conducting unit; The second conducting unit includes a first conducting transistor, a first resistor, and a second resistor. The second resistor is used to pull the base potential of the first conducting transistor down to ground level when the first conducting transistor is turned off. The base of the first conducting transistor is connected to the first end of the first resistor and to the first end of the second resistor; The emitter of the first conducting transistor is used to connect to the ground terminal and to the second terminal of the second resistor; The collector of the first conducting transistor is connected to the second end of the first Zener resistor; The second end of the first resistor is used to connect to the signal output terminal of the controller.

2. The circuit according to claim 1, characterized in that, The third conducting unit includes a second transistor, and the second output circuit further includes a first voltage divider unit; The gate of the second transistor is connected to the first voltage divider unit, the source of the second transistor is connected to the ground terminal, and the drain of the second transistor is connected to the load. The first voltage divider unit is used to connect to the ground terminal and to the signal output terminal of the controller.

3. The circuit according to claim 2, characterized in that, The first voltage divider unit includes a third resistor and a fourth resistor; The first end of the third resistor is connected to the gate of the second transistor and to the first end of the fourth resistor; The second end of the third resistor is used to connect to the signal output terminal of the controller; The second end of the fourth resistor is used to connect to the grounding terminal.

4. The circuit according to claim 1, characterized in that, The voltage adjustment range of the first Zener diode is 3.0V-20V, and the resistance adjustment range of the first Zener resistor is 2Ω-2000Ω.

5. The circuit according to claim 1, characterized in that, The signal output circuit further includes a third output circuit and a fourth output circuit, wherein: The third output circuit includes a fourth conduction unit, a fifth conduction unit, and a second voltage regulator unit for connection to the load; the fourth output circuit includes a sixth conduction unit for connection to the load. The fourth conducting unit is connected to the second voltage regulating unit and is used to connect to the power supply terminal; The fifth conducting unit is connected to the second voltage regulating unit and is used to connect to the ground terminal; The second voltage regulator unit is used to connect to the power supply terminal; The sixth conducting unit is used to connect to the grounding terminal.

6. The circuit according to claim 5, characterized in that, The fourth conducting unit includes a third transistor, and the second voltage regulating unit includes a second voltage regulating diode and a second voltage regulating resistor; The gate of the third transistor is connected to the positive terminal of the second Zener diode and to the first terminal of the second Zener resistor; The source of the third transistor is connected to the negative terminal of the second Zener diode and is used to connect to the power supply terminal. The drain of the third transistor is used to connect to the load; The positive terminal of the second Zener diode is connected to the first terminal of the second Zener resistor, and the negative terminal of the second Zener diode is used to connect to the power supply terminal; The second end of the second voltage-stabilizing resistor is connected to the fifth conducting unit.

7. A massage device, characterized in that, Includes the signal output circuit as described in any one of claims 1 to 6.

8. A signal output method, characterized in that, The signal output method is applied to a signal output circuit, which includes a first output circuit and a second output circuit. The first output circuit includes a first conducting unit, a second conducting unit, and a first voltage regulating unit for connection to a load. The second output circuit includes a third conducting unit for connection to the load. The first conducting unit is connected to the first voltage regulating unit and is connected to a power supply terminal. The second conducting unit is connected to the first voltage regulating unit and is connected to a ground terminal. The first voltage regulating unit is connected to the power supply terminal. The third conducting unit is connected to the ground terminal. The first conducting unit includes a first transistor, and the first voltage regulating unit includes a first voltage regulating diode and a first voltage regulating resistor. The gate of the first transistor is connected to the positive terminal of the first Zener diode and to the first terminal of the first Zener resistor; The source of the first transistor is connected to the negative terminal of the first Zener diode and is used to connect to the power supply terminal; The drain of the first transistor is used to connect to the load; The positive terminal of the first Zener diode is connected to the first end of the first Zener resistor, and the negative terminal of the first Zener diode is used to connect to the power supply terminal; The second end of the first voltage-stabilizing resistor is connected to the second conducting unit; The second conducting unit includes a first conducting transistor, a first resistor, and a second resistor. The second resistor is used to pull the base potential of the first conducting transistor down to ground level when the first conducting transistor is turned off. The base of the first conducting transistor is connected to the first end of the first resistor and to the first end of the second resistor; The emitter of the first conducting transistor is used to connect to the ground terminal and to the second terminal of the second resistor; The collector of the first conducting transistor is connected to the second end of the first Zener resistor; The second end of the first resistor is used to connect to the signal output terminal of the controller; The signal output method includes: When a high-level electrical signal is input to the second conduction unit, the first voltage regulator unit is connected to the ground terminal, and the electrical signal at the power supply terminal is input to the load based on the first conduction unit; When the high-level electrical signal is input to the third conduction unit, the high-level electrical signal is input to the load based on the third conduction unit; The load operates normally when the power supply terminal receives both an electrical signal and a high-level electrical signal.

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