Power supply detection circuit and sports equipment

Abstract

The utility model discloses a power supply detection circuit and sports equipment, and relates to the technical field of power supply detection. The sports equipment comprises a three-phase generator, an electricity load, a rectifying circuit and a filtering circuit; the power supply detection circuit comprises a main control circuit; the first voltage detection circuit is used for detecting the output voltage of the filter circuit and outputting a first voltage detection signal; the second voltage detection circuit is used for detecting the input voltage of the electric load and outputting a second voltage detection signal; the current detection circuit is used for detecting the output current of the filter circuit and outputting a current detection signal; wherein the main control circuit is used for receiving a first voltage detection signal and a current detection signal so as to confirm the working state of the three-phase generator; and the main control circuit is also used for receiving the second voltage detection signal so as to confirm the working state of the electricity load. The utility model aims to improve the accurate detection of the internal power supply by the sports equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to power supply detection technical field, especially relates to a power supply detection circuit and sports equipment. BACKGROUND

[0002] The sports energy storage bicycle meets the exercise demand of people for indoor sports well, and the mechanical energy generated during exercise is converted into electric energy and effectively utilized after energy storage. This type of bicycle not only promotes the development of environmental protection exercise, but also encourages people to participate in physical activities more, which is a product combining health and sustainable development concept. Among them, the mechanical energy generated by the user through pedaling is first converted into electric energy to power the load on the sports energy storage bicycle. Therefore, the sports energy storage bicycle needs to detect the electric signal output by the generator and feed back to the main control to enable the main control to confirm the working state of the generator. In addition, many loads in the sports energy storage bicycle also have power supply requirements. Therefore, the sports energy storage bicycle also needs to detect the power supply of each load and feed back to the main control to enable the main control to confirm the working state of the load according to the detection signal. SUMMARY

[0003] The main purpose of the utility model is to provide a power supply detection circuit and sports equipment, which aims to improve the accurate detection of internal power supply of sports equipment.

[0004] To achieve the above purpose, the power supply detection circuit provided by the utility model is applied to sports equipment, which comprises a three-phase generator, an electric load, a rectifier circuit and a filter circuit. The input end of the rectifier circuit is electrically connected with the output end of the three-phase generator. The rectifier circuit is used for converting alternating current output by the three-phase generator into direct current and outputting. The input end of the filter circuit is electrically connected with the output end of the rectifier circuit. The filter circuit is used for outputting direct current output by the rectifier circuit after filtering. The power supply end of the electric load is electrically connected with the output end of the filter circuit. The power supply detection circuit comprises:

[0005] A main control circuit;

[0006] A first voltage detection circuit, the input end of the first voltage detection circuit is electrically connected with the output end of the filter circuit, and the output end of the first voltage detection circuit is electrically connected with the main control circuit. The first voltage detection circuit is used for detecting the output voltage of the filter circuit and outputting a first voltage detection signal.

[0007] A second voltage detection circuit, an input end of the second voltage detection circuit is electrically connected with a power supply end of the power load, and an output end of the second voltage detection circuit is electrically connected with the master control circuit; the second voltage detection circuit is used for detecting an input voltage of the power load and outputting a second voltage detection signal;

[0008] A current detection circuit, an input end of the current detection circuit is electrically connected with an output end of the filter circuit, and an output end of the current detection circuit is electrically connected with the master control circuit; the current detection circuit is used for detecting an output current of the filter circuit and outputting a current detection signal;

[0009] The master control circuit is used for receiving the first voltage detection signal and the current detection signal to confirm a working state of the three-phase generator; and the master control circuit is also used for receiving the second voltage detection signal to confirm a working state of the power load.

[0010] In an embodiment, the first voltage detection circuit comprises a second resistor, a third resistor;

[0011] The first end of the second resistor is electrically connected with the first end of the output end of the filter circuit, the second end of the second resistor is electrically connected with the first end of the third resistor and the master control circuit; and the second end of the third resistor is electrically connected with the second end of the output end of the filter circuit.

[0012] In an embodiment, the current detection circuit comprises a current sensor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor;

[0013] The first end and the second end of the current sensor are electrically connected with the first end of the output end of the filter circuit, the third end and the fourth end of the current sensor are electrically connected with a current output end, the first end of the fourth capacitor and the first end of the fifth capacitor, the fifth end of the current sensor is electrically connected with the second end of the sixth capacitor and a ground end, the sixth end of the current sensor is electrically connected with the first end of the sixth capacitor, the seventh end of the current sensor is electrically connected with the master control circuit, and the eighth end of the current sensor is electrically connected with a power supply end and the first end of the seventh capacitor; the second end of the fourth capacitor is electrically connected with the second end of the fifth capacitor and a ground end; and the second end of the seventh capacitor is electrically connected with a ground end.

[0014] In an embodiment, the second voltage detection circuit comprises a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, an eighth capacitor, a ninth capacitor, a tenth capacitor, and a comparator;

[0015] The first end of the fourth resistor is electrically connected with the ground end and the first end of the eighth capacitor, the second end of the fourth resistor is electrically connected with the second end of the eighth capacitor, the second end of the fifth resistor and the second end of the comparator; the first end of the fifth resistor is electrically connected with the power supply end of the power load; the first end of the sixth resistor is electrically connected with the ground end and the first end of the ninth capacitor, the second end of the sixth resistor is electrically connected with the second end of the ninth capacitor, the second end of the seventh resistor and the third end of the comparator; the first end of the seventh resistor is electrically connected with the reference voltage input end; the fourth end of the comparator is electrically connected with the ground end, the first end of the comparator is electrically connected with the first end of the eighth resistor and the first end of the ninth resistor; the second end of the eighth resistor is electrically connected with the master control circuit; the second end of the ninth resistor is electrically connected with the power supply end, the tenth capacitor and the fifth end of the comparator; the seventh end of the comparator is electrically connected with the ground end, the eighth end of the comparator and the second end of the tenth capacitor.

[0016] In an embodiment, the motion device further comprises a direct current voltage conversion circuit, which is connected in series between the output end of the filter circuit and the power supply end of the power load, and the controlled end of the direct current conversion circuit is electrically connected with the master control circuit; the direct current voltage conversion circuit is used for converting the input first direct current voltage into second direct current voltage and outputting;

[0017] The second voltage detection circuit is used for detecting the second direct current voltage output by the direct current voltage conversion circuit and outputting a second voltage detection signal; and the master control circuit is further used for receiving the second voltage conversion signal to control the operation of the direct current voltage conversion circuit.

[0018] In an embodiment, the power supply detection circuit further comprises a voltage signal processing circuit, the input end of the voltage signal processing circuit is electrically connected with the output end of the first voltage detection circuit, and the output end of the voltage signal processing circuit is electrically connected with the master control circuit; the voltage signal processing circuit is used for outputting the input voltage signal after analog-digital conversion.

[0019] In an embodiment, the voltage signal processing circuit comprises a tenth resistor, an eleventh capacitor, a twelfth capacitor and a bidirectional diode.

[0020] The first end of the tenth resistor is electrically connected with the first end of the eleventh capacitor and the output end of the voltage detection circuit, the second end of the tenth resistor is electrically connected with the second end of the bidirectional diode, the first end of the twelfth capacitor and the master control circuit; the second end of the eleventh capacitor is electrically connected with the ground end, the third end of the bidirectional diode and the second end of the twelfth capacitor; the first end of the bidirectional diode is electrically connected with the power supply end.

[0021] In an embodiment, the power supply detection circuit further comprises a current signal processing circuit, an input end of the current signal processing circuit is electrically connected with an output end of the first current detection circuit, and an output end of the current signal processing circuit is electrically connected with the master control circuit; the current signal processing circuit is used for outputting an input current signal after analog-digital conversion.

[0022] The utility model discloses still propose a kind of sports equipment, the sports equipment includes three-phase generator, electric load, rectifier circuit, filter circuit and the power supply detection circuit as any one described above;

[0023] Wherein, the input end of the rectifier circuit is electrically connected with the output end of the three-phase generator;The rectifier circuit is used for converting alternating current output by the three-phase generator into direct current and output;The input end of the filter circuit is electrically connected with the output end of the rectifier circuit;The filter circuit is used for outputting direct current output by rectifier circuit after filtering processing;The power supply end of the electric load is electrically connected with the output end of the filter circuit;The electric load is electrically connected with the output end of the filter circuit.

[0024] In an embodiment, the rectifier circuit comprises a first diode, a second diode, a third diode, a fourth diode, a fifth diode and a sixth diode;The filter circuit comprises a first capacitor, a second capacitor, a third capacitor and a first resistor;

[0025] Wherein, the anode of the first diode is electrically connected with the first end of the three-phase generator, the cathode of the first diode is electrically connected with the positive pole of rectification output end, the cathode of the second diode and the cathode of the third diode;The anode of the second diode is electrically connected with the second end of the three-phase generator;The anode of the third diode is electrically connected with the third end of the three-phase generator;The cathode of the fourth diode is electrically connected with the first end of the three-phase generator, the anode of the fourth diode is electrically connected with ground terminal, the negative pole of rectification output end, the anode of the fifth diode and the anode of the sixth diode;The cathode of the fifth diode is electrically connected with the second end of the three-phase generator;The cathode of the sixth diode is electrically connected with the third end of the three-phase generator;

[0026] And, a first end of a first capacitor is electrically connected to a positive pole of the rectification output end, and a second end of the first capacitor is electrically connected to a negative pole of the rectification output end; a first end of a second capacitor is electrically connected to the positive pole of the rectification output end, and a second end of the second capacitor is electrically connected to the negative pole of the rectification output end; a first end of a third capacitor is electrically connected to the positive pole of the rectification output end and the voltage detection circuit, and a second end of the third capacitor is electrically connected to the negative pole of the rectification output end; a first end of the first resistor is electrically connected to the second end of the third capacitor, and a second end of the first resistor is electrically connected to the first voltage detection circuit.

[0027] The utility model discloses a power supply detection circuit, the output voltage and output current of the three-phase generator output of sports equipment and through rectification circuit, filter circuit processing are detected, thereby indirectly determining the output voltage and output current of three-phase generator. In addition, the main control circuit will also detect the voltage input to the power load through the second voltage detection circuit, thereby confirming whether the voltage input to the power load is consistent with the rated voltage of the power load, thereby outputting the corresponding control signal to the corresponding circuit to improve the accurate detection of the internal power supply of sports equipment, thereby realizing the stable work of sports equipment internal circuit. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to the structure shown in these drawings without creating labor.

[0029] Figure 1 It is the module schematic diagram of the power supply detection circuit of the utility model;

[0030] Figure 2 It is the circuit schematic diagram of the power supply detection circuit of the utility model one embodiment;

[0031] Figure 3 It is the circuit schematic diagram of the power supply detection circuit of the utility model another embodiment;

[0032] Figure 4 It is the circuit schematic diagram of the power supply detection circuit of the utility model still another embodiment.

[0033] EXPLANATION OF DRAWINGS:

[0034] 10, master control circuit; 20, first voltage detection circuit; 30, second voltage detection circuit; 40, current detection circuit; R1-R10, first resistor-tenth resistor; C1-C12, first capacitor-twelfth capacitor; D1-D6, first diode-sixth diode.

[0035] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0037] It should be noted that all the directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly.

[0038] In addition, the description of "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0039] The motion energy storage bicycle well meets the demand of indoor exercise and the effective use of the energy generated during exercise. This type of bicycle not only promotes the development of environmentally friendly exercise, but also encourages people to participate in physical activities more often. It is a product that combines health and sustainable development concepts. The mechanical energy generated by the user through pedaling is first converted into electrical energy to power the loads on the motion energy storage bicycle. Therefore, the motion energy storage bicycle needs to detect the electrical signal output by the generator and feed it back to the main control to confirm the working state of the generator. In addition, the loads in the motion energy storage bicycle also have power supply requirements. Therefore, the motion energy storage bicycle also needs to detect the power supply of each load and feed it back to the main control to confirm the working state of the load.

[0040] Therefore, with reference to Figures 1 to 3 The utility model provides a kind of power supply detection circuit, the motion equipment includes three-phase generator, electric load, rectifier circuit and filter circuit;The input end of the rectifier circuit is electrically connected with the output end of the three-phase generator;The rectifier circuit is used to convert the alternating current output by the three-phase generator into direct current and output;The input end of the filter circuit is electrically connected with the output end of the rectifier circuit;The filter circuit is used to output after filtering the direct current output by rectifier circuit;The power supply end of the electric load is electrically connected with the output end of the filter circuit;The power supply detection circuit includes:

[0041] Main control circuit 10;

[0042] First voltage detection circuit 20, the input end of the first voltage detection circuit 20 is electrically connected with the output end of the filter circuit, and the output end of the first voltage detection circuit 20 is electrically connected with the main control circuit 10;The first voltage detection circuit 20 is used to detect the output voltage of the filter circuit and output first voltage detection signal;

[0043] Second voltage detection circuit 30, the input end of the second voltage detection circuit 30 is electrically connected with the power supply end of the electric load, and the output end of the second voltage detection circuit 30 is electrically connected with the main control circuit 10;The second voltage detection circuit 30 is used to detect the input voltage of the electric load and output second voltage detection signal;

[0044] Current detection circuit 40, the input end of the current detection circuit 40 is electrically connected with the output end of the filter circuit, and the output end of the current detection circuit 40 is electrically connected with the main control circuit 10;The current detection circuit 40 is used to detect the output current of the filter circuit and output current detection signal;

[0045] The main control circuit 10 is configured to receive the first voltage detection signal and the current detection signal to determine the working state of the three-phase generator, and receive the second voltage detection signal to determine the working state of the power load.

[0046] In this embodiment, the main control circuit 10 can be implemented by using a PLC (Programmable Logic Controller), an MCU (Microcontroller Unit), a DSP (Digital Signal Process), an FPGA (Field Programmable Gate Array), an SOC (System On Chip), or the like.

[0047] In this embodiment, the first voltage detection circuit 20 can be implemented by using a voltage dividing circuit, a differential amplification circuit, a comparator circuit, or the like. The voltage dividing circuit divides voltage by connecting two or more resistors in series, and reduces the voltage to be measured to a range suitable for a measuring instrument (such as an ADC) in proportion. For example, two resistors are connected in series, and a measurement point is located between the two resistors. A voltage drop calculated by Ohm's law is a part of the voltage to be measured. Specifically, the first voltage detection circuit 20 includes a second resistor R2 and a third resistor R3. The first end of the second resistor R2 is electrically connected to the first end of the output end of the filter circuit, and the second end of the second resistor R2 is electrically connected to the first end of the third resistor R3 and the main control circuit 10. The second end of the third resistor R3 is electrically connected to the second end of the output end of the filter circuit. The first resistor R1 and the second resistor R2 form a voltage dividing network, which divides the rectified and filtered direct current voltage and provides it to a subsequent circuit. The main control circuit 10 obtains a lower voltage signal to determine the voltage value output by the filter circuit.

[0048] In the embodiment, the first current detection circuit 40 can be implemented by a shunt resistance circuit, a Hall effect sensing circuit, etc. The shunt resistance circuit calculates the current by inserting a small resistance with a known resistance value in the circuit and then measuring the voltage drop across the resistance. Specifically, the current detection circuit 40 includes a current sensor, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7. The first end and the second end of the current sensor are electrically connected to the first end of the output end of the filter circuit, the third end and the fourth end of the current sensor are electrically connected to the current output end, the first end of the fourth capacitor C4, and the first end of the fifth capacitor C5, the fifth end of the current sensor is electrically connected to the second end of the sixth capacitor C6 and the ground end, the sixth end of the current sensor is electrically connected to the first end of the sixth capacitor C6, the seventh end of the current sensor is electrically connected to the main control circuit 10, and the eighth end of the current sensor is electrically connected to the power supply end and the first end of the seventh capacitor C7. The second end of the fourth capacitor C4 is electrically connected to the second end of the fifth capacitor C5 and the ground end, and the second end of the seventh capacitor C7 is electrically connected to the ground end. The current sensor can be implemented by ACS712ELCTR-20A-T. ACS712ELCTR-20A-T is a Hall effect current sensor that can detect the current flowing through its internal current path. The output signal of the sensor is proportional to the current flowing through the motor, which can be read and processed by the subsequent circuit. Further, in the embodiment, the objects to be detected by the first voltage detection circuit 20 and the current detection circuit 40 are both the DC voltage output by the three-phase generator after the rectification circuit and the filter circuit. The first voltage detection circuit 20 and the current detection circuit 40 output the first voltage detection signal and the current detection signal to the main control circuit 10, so that the main control circuit 10 confirms the voltage and current output by the three-phase generator, and then performs corresponding actions. For example, output corresponding PWM control signals to the switching circuit to make the switching circuit perform corresponding conduction or shutdown actions. For another example, when it is confirmed that the first voltage detection signal and the current detection signal are greater than the preset voltage and the preset current, the corresponding switching circuit is controlled to be turned on, so that the electrical energy output by the three-phase generator is output to the consumption resistance for consumption.

[0049] In the embodiment, the second voltage detection circuit 30 can also be implemented by a voltage dividing circuit, a differential amplification circuit, a comparator circuit, etc. The second voltage detection circuit 30 is configured to detect the input voltage input to the power load and output a corresponding second voltage detection signal to the main control circuit 10, so that the main control circuit 10 confirms whether the input voltage input to the power load is the preset voltage according to the second voltage detection signal. Further, the second voltage detection circuit 30 comprises a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, and a comparator. The first end of the fourth resistor R4 is electrically connected with the ground end and the first end of the eighth capacitor C8, and the second end of the fourth resistor R4 is electrically connected with the second end of the eighth capacitor C8, the second end of the fifth resistor R5, and the second end of the comparator. The first end of the fifth resistor R5 is electrically connected with the power supply end of the power load. The first end of the sixth resistor R6 is electrically connected with the ground end and the first end of the ninth capacitor C9, and the second end of the sixth resistor R6 is electrically connected with the second end of the ninth capacitor C9, the second end of the seventh resistor R7, and the third end of the comparator. The first end of the seventh resistor R7 is electrically connected with the reference voltage input end. The fourth end of the comparator is electrically connected with the ground end, and the first end of the comparator is electrically connected with the first end of the eighth resistor R8 and the first end of the ninth resistor R9. The second end of the eighth resistor R8 is electrically connected with the main control circuit 10. The second end of the ninth resistor R9 is electrically connected with the power supply end, the tenth capacitor C10, and the fifth end of the comparator. The seventh end of the comparator is electrically connected with the ground end, the eighth end of the comparator, and the second end of the tenth capacitor C10. Further, the reference voltage input end can set the corresponding reference voltage according to the rated voltage of the corresponding power load. The comparator compares the voltage input to the power supply end of the power load with the voltage input to the reference voltage input end, and outputs a corresponding high / low level signal. The main control circuit 10 receives the high / low level signal to confirm whether the voltage input to the power supply end of the power load meets the power demand of the power load. Further, the fourth resistor R4 and the eighth capacitor C8 form a filter circuit for the voltage input to the power supply end of the power load, and the sixth resistor R6 and the ninth capacitor C9 form a filter circuit for the reference voltage input to the reference voltage input end, so that the comparator obtains more stable and accurate input voltage, thereby improving the accuracy of voltage detection. When the filtered voltage of the power supply end of the power load is higher than the filtered voltage of the reference voltage input to the reference voltage input end, the output of the comparator is high. When the filtered voltage of the power supply end of the power load is lower than the filtered voltage of the reference voltage input to the reference voltage input end, the output of the comparator is low.

[0050] By adopting a power supply detection circuit, the output voltage and the output current of the three-phase generator of the sports equipment are detected, and the output voltage and the output current of the three-phase generator are indirectly determined after being processed by a rectifier circuit and a filter circuit. In addition, the main control circuit 10 also detects the voltage input to the power load through the second voltage detection circuit 30, so as to confirm whether the voltage input to the power load is consistent with the rated voltage of the power load, and output a corresponding control signal to the corresponding circuit, so as to improve the accurate detection of the internal power supply of the sports equipment, and realize the stable work of the internal circuit of the sports equipment.

[0051] In an embodiment of the utility model, the sports equipment further includes a direct current voltage conversion circuit, the direct current voltage conversion circuit is connected in series between the output end of the filter circuit and the power supply end of the power load, and the controlled end of the direct current conversion circuit is electrically connected with the main control circuit 10;The direct current voltage conversion circuit is used for converting the input first direct current voltage into second direct current voltage and outputting;

[0052] The second voltage detection circuit 30 is used for detecting the second direct current voltage output by the direct current voltage conversion circuit and outputting a second voltage detection signal;The main control circuit 10 is also used for receiving the second voltage conversion signal to control the work of the direct current voltage conversion circuit.

[0053] It can be understood that the voltage size of the alternating voltage output by the three-phase generator is related to the rotation frequency of the three-phase generator, and the three-phase generator is arranged on the sports equipment and is driven to rotate by the motion frequency of the user. However, the motion frequency of the user is often uneven, so the voltage output by the three-phase generator is also unstable. The main control circuit 10 detects the direct current voltage output by the three-phase generator through the first voltage detection circuit 20, rectifier circuit and filter circuit, and then outputs a corresponding control signal to the direct current voltage conversion circuit, so that the direct current voltage output by the direct current voltage conversion circuit corresponds to the power supply voltage required by the power load. Further, the main control circuit 10 detects the voltage input to the power supply end of the power load through the second voltage conversion circuit, and further adjusts the working state of the direct current voltage conversion circuit, so that the voltage input to the power load is more consistent with the power demand.

[0054] Reference Figure 4 In an embodiment of the utility model, the power supply detection circuit further includes a voltage signal processing circuit, the input end of the voltage signal processing circuit is electrically connected with the output end of the first voltage detection circuit 20, and the output end of the voltage signal processing circuit is electrically connected with the main control circuit 10;The voltage signal processing circuit is used for outputting the voltage signal after analog-digital conversion.

[0055] In the embodiment, the voltage detection signal output by the first voltage detection circuit 20 is an analog signal, and the electrical signal that can be received by the main control circuit 10 is a digital signal. Therefore, the first voltage detection signal output by the first voltage detection circuit 20 needs to be converted into a digital signal before being output to the main control circuit 10, so that the main control circuit 10 can confirm the voltage output by the three-phase generator after rectification and filtering according to the digital signal. Specifically, the voltage signal processing circuit comprises a tenth resistor R10, an eleventh capacitor C11, a twelfth capacitor C12, and a bidirectional diode. The first end of the tenth resistor R10 is electrically connected with the first end of the eleventh capacitor C11 and the output end of the voltage detection circuit, the second end of the tenth resistor R10 is electrically connected with the second end of the bidirectional diode, the first end of the main control circuit 10 and the first end of the twelfth capacitor C12, the second end of the eleventh capacitor C11 is electrically connected with the ground end, the third end of the bidirectional diode and the second end of the twelfth capacitor C12, and the first end of the bidirectional diode is electrically connected with the power supply end. The output end of the voltage detection circuit is an analog signal output end. The eleventh capacitor C11 is used for filtering high-frequency noise and ensuring that the signal entering the ADC is as clean as possible. The tenth resistor R10 is a current-limiting resistor, which protects the subsequent circuit from excessive current and helps stabilize the signal. The twelfth capacitor C12 is connected between the power supply end and the ground end, and is used for decoupling and filtering to reduce the influence of power supply noise on the conversion accuracy of the ADC. The bidirectional diode is turned on when the input signal is too high or too low, thereby protecting the subsequent circuit from damage.

[0056] In an embodiment of the utility model, the power supply detection circuit further includes a current signal processing circuit, the input end of the current signal processing circuit is electrically connected with the output end of the first current detection circuit 40, and the output end of the current signal processing circuit is electrically connected with the main control circuit 10. The current signal processing circuit is used for outputting the input current signal after analog-digital conversion.

[0057] In the embodiment, the current detection signal output by the current detection circuit 40 is an analog signal, and the electrical signal that can be received by the main control circuit 10 is a digital signal. Therefore, the current detection signal output by the current detection circuit 40 needs to be converted into a digital signal before being output to the main control circuit 10, so that the main control circuit 10 can confirm the current output by the three-phase generator after rectification and filtering according to the digital signal.

[0058] The utility model discloses still propose a kind of sports equipment, the sports equipment includes three-phase generator, electric load, rectifier circuit, filter circuit and the power supply detection circuit as any of the above;Wherein, the input of rectifier circuit is electrically connected with the output of three-phase generator;Rectifier circuit is used to convert the alternating current output by three-phase generator into direct current and output;The input of filter circuit is electrically connected with the output of rectifier circuit;Filter circuit is used to output after filtering the direct current output by rectifier circuit;The power supply end of electric load is electrically connected with the output of filter circuit;Electric load is electrically connected with the output of filter circuit.It is worth noting that, since the sports equipment of the utility model is based on the power supply detection circuit described above, the embodiment of the sports equipment of the utility model includes all the technical solutions of all the power supply detection circuit embodiments described above, and the technical effects achieved are also exactly the same, and here will not be repeated.

[0059] Reference Figure 2 In an embodiment of the utility model, the rectifier circuit includes first diode D1, second diode D2, third diode D3, fourth diode D4, fifth diode D5, sixth diode D6;The filter circuit includes first capacitor C1, second capacitor C2, third capacitor C3, first resistor R1;

[0060] Wherein, the anode of first diode D1 is electrically connected with the first end of three-phase generator, and the cathode of first diode D1 is electrically connected with the positive pole of rectification output end, the cathode of second diode D2 and the cathode of third diode D3;The anode of second diode D2 is electrically connected with the second end of three-phase generator;The anode of third diode D3 is electrically connected with the third end of three-phase generator;The cathode of fourth diode D4 is electrically connected with the first end of three-phase generator, and the anode of fourth diode D4 is electrically connected with ground terminal, the negative pole of rectification output end, the anode of fifth diode D5 and the anode of sixth diode D6;The cathode of fifth diode D5 is electrically connected with the second end of three-phase generator;The cathode of sixth diode D6 is electrically connected with the third end of three-phase generator;

[0061] And, a first end of a first capacitor C1 is electrically connected with a positive pole of the rectification output end, a second end of the first capacitor C1 is electrically connected with a negative pole of the rectification output end; a first end of a second capacitor C2 is electrically connected with the positive pole of the rectification output end, a second end of the second capacitor C2 is electrically connected with the negative pole of the rectification output end; a first end of a third capacitor C3 is electrically connected with the positive pole of the rectification output end and the voltage detection circuit, a second end of the third capacitor C3 is electrically connected with the negative pole of the rectification output end; a first end of the first resistor R1 is electrically connected with the second end of the third capacitor C3, a second end of the first resistor R1 is electrically connected with the first voltage detection circuit 20.

[0062] The above merely illustrates the embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, within the technical concept of the present application, and according to the contents of the present application specification and drawings, are included in the patent protection scope of the present application.

Claims

1. A power supply detection circuit for an exercise device, comprising: The motion device comprises a three-phase generator, an electric load, a rectifier circuit and a filter circuit; an input end of the rectifier circuit is electrically connected with an output end of the three-phase generator; the rectifier circuit is used for converting alternating current output by the three-phase generator into direct current and outputting; an input end of the filter circuit is electrically connected with an output end of the rectifier circuit; the filter circuit is used for outputting direct current output by the rectifier circuit after filtering processing; A power supply end of the electric load is electrically connected with an output end of the filter circuit; The power supply detection circuit comprises: A main control circuit; A first voltage detection circuit, an input end of the first voltage detection circuit is electrically connected with an output end of the filter circuit, an output end of the first voltage detection circuit is electrically connected with the main control circuit; the first voltage detection circuit is used for detecting output voltage of the filter circuit and outputting a first voltage detection signal; A second voltage detection circuit, an input end of the second voltage detection circuit is electrically connected with the power supply end of the electric load, an output end of the second voltage detection circuit is electrically connected with the main control circuit; the second voltage detection circuit is used for detecting input voltage of the electric load and outputting a second voltage detection signal; A current detection circuit, an input end of the current detection circuit is electrically connected with an output end of the filter circuit, an output end of the current detection circuit is electrically connected with the main control circuit; the current detection circuit is used for detecting output current of the filter circuit and outputting a current detection signal; Wherein, the main control circuit is used for receiving the first voltage detection signal and the current detection signal to confirm the working state of the three-phase generator; the main control circuit is also used for receiving the second voltage detection signal to confirm the working state of the electric load.

2. The power supply detection circuit of claim 1, wherein, The first voltage detection circuit comprises a second resistor and a third resistor; Wherein, a first end of the second resistor is electrically connected with a first end of the output end of the filter circuit, a second end of the second resistor is electrically connected with a first end of the third resistor and the main control circuit; a second end of the third resistor is electrically connected with a second end of the output end of the filter circuit.

3. The power supply detection circuit of claim 1, wherein, The current detection circuit comprises a current sensor, a fourth capacitor, a fifth capacitor, a sixth capacitor and a seventh capacitor; Wherein, a first end and a second end of the current sensor are electrically connected with a first end of the output end of the filter circuit, a third end and a fourth end of the current sensor are electrically connected with a current output end, a first end of the fourth capacitor and a first end of the fifth capacitor, a fifth end of the current sensor is electrically connected with a second end of the sixth capacitor and a ground end, a sixth end of the current sensor is electrically connected with a first end of the sixth capacitor, a seventh end of the current sensor is electrically connected with the main control circuit, an eighth end of the current sensor is electrically connected with a power supply end and a first end of the seventh capacitor; a second end of the fourth capacitor is electrically connected with a second end of the fifth capacitor and a ground end; a second end of the seventh capacitor is electrically connected with a ground end.

4. The power supply detection circuit of claim 1, wherein, The second voltage detection circuit comprises a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, an eighth capacitor, a ninth capacitor, a tenth capacitor, and a comparator. The first end of the fourth resistor is electrically connected with the ground end and the first end of the eighth capacitor, the second end of the fourth resistor is electrically connected with the second end of the eighth capacitor, the second end of the fifth resistor, and the second end of the comparator; the first end of the fifth resistor is electrically connected with the power supply end of the power load; the first end of the sixth resistor is electrically connected with the ground end and the first end of the ninth capacitor, the second end of the sixth resistor is electrically connected with the second end of the ninth capacitor, the second end of the seventh resistor, and the third end of the comparator; the first end of the seventh resistor is electrically connected with the reference voltage input end; the fourth end of the comparator is electrically connected with the ground end, the first end of the comparator is electrically connected with the first end of the eighth resistor and the first end of the ninth resistor; the second end of the eighth resistor is electrically connected with the main control circuit; the second end of the ninth resistor is electrically connected with the power supply end, the tenth capacitor, and the fifth end of the comparator; the seventh end of the comparator is electrically connected with the ground end, the eighth end of the comparator, and the second end of the tenth capacitor.

5. Power supply detection circuit according to any of claims 1 to 4, characterized in that The motion device further comprises a direct-current voltage conversion circuit, which is connected in series between the output end of the filter circuit and the power supply end of the power load, and the controlled end of the direct-current conversion circuit is electrically connected with the main control circuit; the direct-current voltage conversion circuit is used for converting the input first direct-current voltage into second direct-current voltage and outputting. The second voltage detection circuit is used for detecting the second direct-current voltage output by the direct-current voltage conversion circuit and outputting a second voltage detection signal; and the main control circuit is further used for receiving the second voltage conversion signal to control the operation of the direct-current voltage conversion circuit.

6. Power supply detection circuit according to any of claims 1 to 4, characterized in that The power supply detection circuit further comprises a voltage signal processing circuit, the input end of the voltage signal processing circuit is electrically connected with the output end of the first voltage detection circuit, and the output end of the voltage signal processing circuit is electrically connected with the main control circuit; the voltage signal processing circuit is used for outputting the input voltage signal after analog-to-digital conversion.

7. The power supply detection circuit of claim 6, wherein, The voltage signal processing circuit comprises a tenth resistor, an eleventh capacitor, a twelfth capacitor, and a bidirectional diode. The first end of the tenth resistor is electrically connected with the first end of the eleventh capacitor and the output end of the voltage detection circuit, the second end of the tenth resistor is electrically connected with the second end of the bidirectional diode, the first end of the twelfth capacitor, and the main control circuit; the second end of the eleventh capacitor is electrically connected with the ground end, the third end of the bidirectional diode, and the second end of the twelfth capacitor; and the first end of the bidirectional diode is electrically connected with the power supply end.

8. The power supply detection circuit of any one of claims 1 to 4, wherein, The power supply detection circuit further comprises a current signal processing circuit, an input end of the current signal processing circuit is electrically connected with an output end of the first current detection circuit, and an output end of the current signal processing circuit is electrically connected with the master control circuit; the current signal processing circuit is used for outputting the input current signal after analog-digital conversion.

9. Sports equipment, characterized in that The motion device comprises a three-phase generator, an electric load, a rectifier circuit, a filter circuit and the power supply detection circuit according to any one of claims 1 to 8. The input end of the rectifier circuit is electrically connected with the output end of the three-phase generator; the rectifier circuit is used for converting the alternating current output by the three-phase generator into direct current and outputting; the input end of the filter circuit is electrically connected with the output end of the rectifier circuit; the filter circuit is used for outputting the direct current output by the rectifier circuit after filter processing; the power supply end of the electric load is electrically connected with the output end of the filter circuit; the electric load is electrically connected with the output end of the filter circuit.

10. The exercise apparatus of claim 9, wherein, The rectifier circuit comprises a first diode, a second diode, a third diode, a fourth diode, a fifth diode and a sixth diode; the filter circuit comprises a first capacitor, a second capacitor and a third capacitor and a first resistor; The anode of the first diode is electrically connected with the first end of the three-phase generator, the cathode of the first diode is electrically connected with the positive pole of the rectifier output end, the cathode of the second diode and the cathode of the third diode; the anode of the second diode is electrically connected with the second end of the three-phase generator; the anode of the third diode is electrically connected with the third end of the three-phase generator; the cathode of the fourth diode is electrically connected with the first end of the three-phase generator, the anode of the fourth diode is electrically connected with the ground end, the negative pole of the rectifier output end, the anode of the fifth diode and the anode of the sixth diode; the cathode of the fifth diode is electrically connected with the second end of the three-phase generator; the cathode of the sixth diode is electrically connected with the third end of the three-phase generator; The first end of the first capacitor is electrically connected with the positive pole of the rectifier output end, and the second end of the first capacitor is electrically connected with the negative pole of the rectifier output end; the first end of the second capacitor is electrically connected with the positive pole of the rectifier output end, and the second end of the second capacitor is electrically connected with the negative pole of the rectifier output end; the first end of the third capacitor is electrically connected with the positive pole of the rectifier output end and the voltage detection circuit, and the second end of the third capacitor is electrically connected with the negative pole of the rectifier output end; the first end of the first resistor is electrically connected with the second end of the third capacitor, and the second end of the first resistor is electrically connected with the first voltage detection circuit.

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