Boost circuit for treadmill

Abstract

The utility model provides a boosted circuit for a treadmill, and relates to the field of boosted circuits, the boosted circuit for the treadmill comprises a power supply, a processor, a first boosted circuit and a second boosted circuit, the power supply is electrically connected with the processor through the first boosted circuit, and the processor is electrically connected with the second boosted circuit through the second boosted circuit. The second booster circuit comprises a PWM drive circuit, a push-pull circuit and a rectification filter circuit, the input end of the PWM drive circuit is electrically connected with the processor, the output end of the PWM drive circuit is connected with the input end of the push-pull circuit, the output end of the push-pull circuit is connected with the input end of the rectification filter circuit, and the input end of the rectification filter circuit is electrically connected with the input end of the PWM drive circuit. The first booster circuit can boost the voltage of the power supply to 15V for supplying power to a display screen, a detection sensor and a control module of the treadmill, and then the processor and the second booster circuit can boost the voltage to 400V for supplying power to a battery of the treadmill.

Description

Technical Field

[0001] This application relates to the field of boost circuits, and more specifically, to a boost circuit for a treadmill. Background Technology

[0002] Treadmills are the most important indoor exercise equipment, with functional control and display units. These devices require an external power supply. Currently, the heart rate detection unit of a treadmill requires a DC 15V voltage, while the motor requires a voltage of over 200V. The current boost circuit is complex, so it needs to be improved. Summary of the Invention

[0003] The purpose of this application is to provide a boost circuit for a treadmill that can solve the above-mentioned technical problems.

[0004] This application provides a boost circuit for a treadmill, including a power supply, a processor, a first boost circuit, and a second boost circuit. The power supply is electrically connected to the processor through the first boost circuit. The second boost circuit includes a PWM drive circuit, a push-pull circuit, and a rectifier filter circuit. The input terminal of the PWM drive circuit is electrically connected to the processor, the output terminal of the PWM drive circuit is connected to the input terminal of the push-pull circuit, the output terminal of the push-pull circuit is connected to the input terminal of the rectifier filter circuit, and the output terminal of the rectifier filter circuit is connected to the motor.

[0005] Preferably, the first boost circuit includes a boost chip, an inductor L1, resistors R1 and R2, capacitors C1 and C2, and a diode D1. One end of the inductor L1, the fourth interface of the boost chip, the fifth interface of the boost chip, and one end of the capacitor C2 are all connected to the power supply. The other end of the inductor L1 is connected to the first interface of the boost chip and the input terminal of the diode D1, respectively. The other end of the capacitor C2 is grounded, and the second interface of the boost chip is grounded. One end of the resistor R1 is connected to the output terminal of the diode D1, and the other ends of the resistor R1 and one end of the resistor R2 are both connected to the third interface of the boost chip. The other end of the resistor R2 is grounded. The output terminal of the diode D1 is connected to the processor. One end of the capacitor C1 is connected to the output terminal of the diode D1, and the other end of the capacitor C1 is grounded.

[0006] Preferably, the boost chip is model MT3608.

[0007] Preferably, the PWM drive circuit includes a first MOSFET circuit and a second MOSFET circuit. The first MOSFET circuit includes transistors Q1, Q2, Q3, and Q4, and the second MOSFET circuit includes transistors Q5, Q6, Q7, and Q8. The input terminals of both the first and second MOSFET circuits are electrically connected to the processor, and the output terminals of both the first and second MOSFET circuits are electrically connected to the push-pull circuit.

[0008] Preferably, the push-pull circuit includes a transformer.

[0009] Preferably, the rectifier filter circuit includes a rectifier bridge and a capacitor C2. The input terminal of the rectifier bridge is connected to the transformer, the output terminal of the rectifier bridge is connected to the motor, one end of the capacitor C2 is connected to the input terminal of the rectifier bridge, and the other end of the capacitor C2 is grounded.

[0010] Preferably, the processor is an EG3525.

[0011] The beneficial effects of this utility model are:

[0012] This utility model provides a boost circuit for a treadmill, including a power supply, a processor, a first boost circuit, and a second boost circuit. The power supply is electrically connected to the processor through the first boost circuit. The second boost circuit includes a PWM drive circuit, a push-pull circuit, and a rectifier filter circuit. The input terminal of the PWM drive circuit is electrically connected to the processor, the output terminal of the PWM drive circuit is connected to the input terminal of the push-pull circuit, the output terminal of the push-pull circuit is connected to the input terminal of the rectifier filter circuit, and the output terminal of the rectifier filter circuit is connected to the motor. The first boost circuit of this utility model can boost the voltage of the power supply to 15V to power the treadmill's display screen, detection sensors, and control module. Then, through the processor and the second boost circuit, the voltage can be boosted to 400V to power the treadmill's battery. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 The circuit diagram of the processor of this utility model is shown below.

[0015] Figure 2 This is the second boost circuit diagram of this utility model;

[0016] Figure 3 This is the first boost circuit diagram of this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0020] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. These terms are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0023] like Figure 1-3 As shown, a boost circuit for a treadmill includes a power supply, a processor, a first boost circuit, and a second boost circuit. The power supply is electrically connected to the processor through the first boost circuit. The second boost circuit includes a PWM drive circuit, a push-pull circuit, and a rectifier filter circuit. The input terminal of the PWM drive circuit is electrically connected to the processor, the output terminal of the PWM drive circuit is connected to the input terminal of the push-pull circuit, the output terminal of the push-pull circuit is connected to the input terminal of the rectifier filter circuit, and the output terminal of the rectifier filter circuit is connected to the motor. The first boost circuit of this invention can boost the voltage of the power supply to 15V to power the treadmill's display screen, detection sensors, and control module. Then, through the processor and the second boost circuit, the voltage can be boosted to 400V to power the treadmill's battery.

[0024] like Figure 3 As shown, in this embodiment, the first boost circuit includes a boost chip, an inductor L1, resistors R1 and R2, capacitors C1 and C2, and a diode D1. One end of the inductor L1, the fourth interface of the boost chip, the fifth interface of the boost chip, and one end of the capacitor C2 are all connected to the power supply. The other end of the inductor L1 is connected to the first interface of the boost chip and the input terminal of the diode D1, respectively. The other end of the capacitor C2 is grounded, and the second interface of the boost chip is grounded. One end of the resistor R1 is connected to the output terminal of the diode D1, and the other ends of the resistor R1 and one end of the resistor R2 are both connected to the third interface of the boost chip. The other end of the resistor R2 is grounded. The output terminal of the diode D1 is connected to the processor. One end of the capacitor C1 is connected to the output terminal of the diode D1, and the other end of the capacitor C1 is grounded.

[0025] In this embodiment, the boost chip is model MT3608.

[0026] The output voltage of the first boost circuit is +15.

[0027] In this embodiment, the PWM drive circuit includes a first MOSFET circuit and a second MOSFET circuit. The first MOSFET circuit includes transistors Q1, Q2, Q3, and Q4, and the second MOSFET circuit includes transistors Q5, Q6, Q7, and Q8. The input terminals of both the first and second MOSFET circuits are electrically connected to the processor, and the output terminals of both the first and second MOSFET circuits are electrically connected to the push-pull circuit.

[0028] In this embodiment, the push-pull circuit includes a transformer.

[0029] In this embodiment, the rectifier filter circuit includes a rectifier bridge and a capacitor C2. The input terminal of the rectifier bridge is connected to the transformer, the output terminal of the rectifier bridge is connected to the motor, one end of the capacitor C2 is connected to the input terminal of the rectifier bridge, and the other end of the capacitor C2 is grounded.

[0030] like Figure 2 As shown, the PWM drive circuit outputs two sets of transistors: one set consists of transistors Q1, Q2, Q3, and Q4, and the other set consists of transistors Q5, Q6, Q7, and Q8. The input 3.2V DC voltage generates pulse voltages with constantly changing polarity in the push-pull circuit composed of two MOSFETs. After being stepped up by a transformer, the voltage reaches 400V.

[0031] like Figure 1 As shown, in this embodiment, the processor is model EG3525.

[0032] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A boost circuit for a treadmill, characterized in that: The system includes a power supply, a processor, a first boost circuit, and a second boost circuit. The power supply is electrically connected to the processor through the first boost circuit. The second boost circuit includes a PWM drive circuit, a push-pull circuit, and a rectifier filter circuit. The input terminal of the PWM drive circuit is electrically connected to the processor, the output terminal of the PWM drive circuit is connected to the input terminal of the push-pull circuit, the output terminal of the push-pull circuit is connected to the input terminal of the rectifier filter circuit, and the output terminal of the rectifier filter circuit is connected to a motor.

2. The boost circuit for a treadmill according to claim 1, characterized in that: The first boost circuit includes a boost chip, an inductor L1, resistors R1 and R2, capacitors C1 and C2, and a diode D1. One end of the inductor L1, the fourth interface of the boost chip, the fifth interface of the boost chip, and one end of the capacitor C2 are all connected to the power supply. The other end of the inductor L1 is connected to the first interface of the boost chip and the input terminal of the diode D1, respectively. The other end of the capacitor C2 is grounded, and the second interface of the boost chip is grounded. One end of the resistor R1 is connected to the output terminal of the diode D1. The other ends of the resistor R1 and one end of the resistor R2 are both connected to the third interface of the boost chip. The other end of the resistor R2 is grounded. The output terminal of the diode D1 is connected to the processor. One end of the capacitor C1 is connected to the output terminal of the diode D1, and the other end of the capacitor C1 is grounded.

3. A boost circuit for a treadmill according to claim 2, characterized in that: The boost chip is model MT3608.

4. A boost circuit for a treadmill according to claim 1, characterized in that: The PWM drive circuit includes a first MOSFET circuit and a second MOSFET circuit. The first MOSFET circuit includes transistors Q1, Q2, Q3, and Q4, and the second MOSFET circuit includes transistors Q5, Q6, Q7, and Q8. The input terminals of both the first and second MOSFET circuits are electrically connected to the processor, and the output terminals of both the first and second MOSFET circuits are electrically connected to the push-pull circuit.

5. A boost circuit for a treadmill according to claim 1, characterized in that: The push-pull circuit includes a transformer.

6. A boost circuit for a treadmill according to claim 5, characterized in that: The rectifier and filter circuit includes a rectifier bridge and a capacitor C2. The input terminal of the rectifier bridge is connected to the transformer, and the output terminal of the rectifier bridge is connected to the motor. One end of the capacitor C2 is connected to the input terminal of the rectifier bridge, and the other end of the capacitor C2 is grounded.

7. A boost circuit for a treadmill according to claim 1, characterized in that: The processor is model EG3525.

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