Circuit suitable for equalizing output voltage of self-powered equipment

Abstract

The utility model relates to a circuit suitable for equalizing output voltage of self-powered equipment. The circuit comprises a wireless transmitting circuit, a rectification energy storage circuit, a detection circuit and a power supply management circuit, when the generator is pressed down, the rectification energy storage circuit carries out rectification, charges the capacitor, and collects and stores electric energy. The detection circuit is composed of a D4, a C7, an R2 and an R5, and when the generator is pressed down, the K1 is connected with a ground wire, so that a K1 key value signal is triggered, and the input action of a user is identified; and during springback, a detection circuit consisting of a D7, a C5, an R6 and an R7 enables the K2 to be connected with a ground wire, triggers a K2 key value signal, recognizes the action input by a user, and aims at the springback action. And when the generator rebounds, the electric energy flows out of the VSS and is rectified and charged again, so that the RF chip U1 of the power management circuit is ensured to have enough and stable electric energy supply. According to the utility model, the problem of non-uniform power generation during the reciprocating power generation process of the self-powered equipment is solved, and the wireless communication module and other components depending on the power can be ensured to work stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric power self -power supply, specifically related to a circuit suitable for even constant self -power supply equipment output voltage. BACKGROUND

[0002] With the wide application of self -power supply technology in green energy -saving building, intelligent house, industrial automation etc. field, the stability and reliability of self -power supply equipment are put forward higher requirement. However, the existing self -power supply equipment exists the problem that the power generation is not even constant in the reciprocating power generation process, especially in the pressing and rebound action, and the power generation difference is remarkable, this not only influences the accuracy and integrity of wireless communication module sending instruction, even leads to unable normal work. Therefore, the urgent need of a kind of technical scheme that can effectively solve this problem, ensure that self -power supply equipment can provide stable power output under any circumstances, to guarantee its reliable operation.

[0003] The traditional method of solving the problem of uneven constant power generation in the reciprocating power generation process of self -power supply equipment is mainly realized by adjusting mechanical structure. The advantage of this method is that it directly acts on the physical layer, and can improve the power generation efficiency and stability to a certain extent. However, its limitations are also very obvious: on the one hand, the space for mechanical structure adjustment is limited, and the fluctuation of power generation cannot be completely eliminated; on the other hand, this way increases the complexity of design and manufacturing, improves the cost, and long -term use will appear wear and tear and other problems, leading to performance decline.

[0004] Although the prior art has realized the problem of uneven constant power generation, and tried to solve it by improving mechanical structure or using simple circuit control, but these methods are not ideal. For example, some schemes try to use springs or other elastic elements to adjust the energy output in the power generation process, but fail to solve the problem fundamentally. In addition, although some circuit designs introduce energy storage units to store excess power, due to the lack of effective management and release mechanism, it is still difficult to guarantee continuous and stable power supply. Therefore, the current solution cannot fully meet the demand for stable power output in actual application.

[0005] The utility model provides a new circuit design scheme, which aims to solve the problem of uneven constant power generation in the reciprocating power generation of self -power supply equipment by optimizing the circuit structure. CONTENT OF UTILITY MODEL

[0006] The utility model relates to a circuit suitable for even constant self -power supply equipment output voltage, which comprises: wireless transmitting circuit, rectifier energy storage circuit, detection circuit and power management circuit.

[0007] The wireless transmitting circuit comprises: antenna pin ANT1, inductor L1, inductor L2, capacitor C1, capacitor C2, capacitor C3, chip U1, crystal oscillator X1;

[0008] The rectification energy storage circuit comprises an input end J2, an NMOS tube Q1, an NMOS tube Q2, an NMOS tube Q3, a diode D3, a capacitor C4, a capacitor C8, a capacitor C9, and a switch S1.

[0009] The detection circuit comprises a diode D4, a diode D7, a resistor R2, a resistor R5, a resistor R6, a resistor R7, a capacitor C5, and a capacitor C7.

[0010] The power management circuit comprises a power management chip U2, an inductor L3, a resistor R1, a resistor R3, a resistor R4, and a capacitor C6.

[0011] The antenna pin ANT1 in the wireless transmitting circuit is connected with the inductor L2 and the capacitor C3, the inductor L2 is connected with the capacitor C2, the capacitor C3 is grounded, the other end of the capacitor C2 is connected with the inductor L1 and the chip U1 respectively, the inductor L1 is connected with the capacitor C1 and the chip U1, one end of the capacitor C1 is grounded, the crystal oscillator X1 is connected with the chip U1 and the other end is grounded.

[0012] One end of the NMOS tube Q1 in the rectification energy storage circuit is connected with the input end J2, the other end is connected with the switch S1 and grounded respectively, one end of the NMOS tube Q2 is connected with the input end J2, the other end is connected with the NMOS tube Q3 and grounded respectively, one end of the NMOS tube Q3 is connected with the switch S1, the other end is connected with the capacitor C9, one end of the capacitor C9 is grounded, one end of the capacitor C4 is connected with the switch S1, one end is connected with the resistor R5 and the capacitor C7 of the detection circuit, the diode D3 is connected with the capacitor C4 in parallel, one end of the capacitor C8 is connected with the power management chip U2 of the power management circuit, one end is connected with the resistor R5 and the capacitor C7 of the detection circuit.

[0013] One end of the resistor R2 of the detection circuit is connected with the resistor R5, one end is connected with the diode D4, the capacitor C7 is connected with the diode D4, the other end of the diode D4 is grounded, one end of the resistor R6 is connected with the resistor R7, one end is connected with the diode D7, one end of the capacitor C5 is connected with the diode D7, and the other end is grounded.

[0014] The inductor L3 of the power management circuit is connected with the power management chip U2, one end of the resistor R1 is connected with the inductor L3, one end is connected with the resistor R3, the other end of the resistor R3 is grounded, one end of the capacitor C6 is connected with the inductor L3, and the other end is grounded, one end of the resistor R4 is connected with the inductor L3, and the other end is grounded.

[0015] Preferably, the crystal oscillator X1 of the wireless transmitting circuit comprises a crystal pin 1, a crystal pin 2, a crystal pin 3 and a crystal pin 4; the crystal pin 1 is connected with the chip U1; one end of the crystal pin 3 and the crystal pin 4 is grounded respectively;

[0016] Preferably, the detection circuit comprises a K1 connection end and a K2 connection end; the K1 connection end is located between the resistor R2 and the resistor R5; the K2 connection end is located between the resistor R6 and the resistor R7; the K1 connection end and the K2 connection end of the detection circuit are connected with the wireless transmitting circuit chip U1.

[0017] Preferably, the power management chip U2 of the power management circuit comprises a management pin 1, a management pin 3, a management pin 4 and a management pin 5; the management pin 1 and the management pin 4 are connected with the capacitor C8 respectively; the management pin 3 is connected with the inductor L3; the management pin 5 is connected with the resistor R1 and the resistor R3.

[0018] Preferably, the input end J2 of the rectification energy storage circuit is used for connecting external energy supply.

[0019] Preferably, the diode D4, the resistor R2, the resistor R5 and the capacitor C7 in the detection circuit are used for detecting the pressing action and triggering the signal, and the signal is output to the chip U1 through the K1 connection end.

[0020] Preferably, the diode D7, the resistor R6, the resistor R7 and the capacitor C5 in the detection circuit are used for detecting the rebound action and triggering the signal, and the signal is output to the chip U1 through the K2 connection end.

[0021] Compared with the prior art, the technical scheme of the application has the following technical effects:

[0022] The utility model discloses a synergistic work of introducing energy storage capacitor C9 and intelligent control switch S1, and the application solves the problem of uneven power generation in the reciprocating power generation process of the self-powered equipment. Specifically, when the generator is pressed, part of the electric energy is stored in the capacitor C9, and in the rebound stage, the C9 releases the stored electric energy to supplement the lower power generation at this time. This technical scheme ensures that relatively stable electric energy output can be provided in the pressing or rebound state. The technical effect brought by this is that the reliability and stability of the wireless communication module work are significantly improved, the problem of command sending failure or data loss caused by insufficient power is avoided, and thus the normal operation of the self-powered equipment in various application scenarios is ensured.

[0023] The utility model discloses a rectifier circuit and U2 synchronous step-down voltage regulator combined technical scheme that Q1, Q2, Q3 NMOS pipe constitute, the present application effectively solves the problem of big voltage fluctuation and instability in traditional self-powered equipment. Through rectifier circuit, the alternating current generated by the generator is converted into direct current, and accurate voltage regulation is carried out by U2, so that even in the case of large input energy change, a stable working voltage can be maintained. This improvement not only improves the working efficiency and life of key components such as RF chip, but also enhances the anti-interference ability and adaptability of the whole system, providing a more stable and efficient power supply solution for users, especially in the field of industrial automation and smart home with strict power supply requirements.

[0024] The utility model discloses the detection circuit (such as D4, C7, R2 is used for pressing down detection, D7, C5, R6, R7 is used for rebound detection) with careful design to trigger K1 and K2 key value signal, overcome the problem that the prior art can not accurately capture the generator action state. The scheme can monitor and respond to the pressing and rebound events of the generator in real time, ensuring that each operation is correctly identified and processed. This not only improves the system response speed and accuracy, but also provides a solid foundation for subsequent data processing and instruction execution.

[0025] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application, the contents of the specification can be implemented, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following will be described in detail with the preferred embodiments of the present application and the accompanying drawings.

[0026] According to the detailed description of the specific embodiments of the present application in the following text combined with the drawings, those skilled in the art will more clearly understand the above and other purposes, advantages and features of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme of the embodiments or prior art in the present application, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings without creating laborious work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

[0028] Fig. 1 A circuit diagram suitable for the output voltage of the uniform constant self-powered equipment

[0029] Fig. 2The utility model relates to a wireless transmitting circuit diagram suitable for the circuit of the output voltage of even constant self-powered equipment, DETAILED DESCRIPTION

[0030] To make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of known functions and structures are omitted in the embodiments for the sake of clarity and conciseness.

[0031] It should be understood that the term "one embodiment" or "the embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "one embodiment" or "the embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0032] In addition, reference numerals and / or letters can be repeated in different examples in the present application. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed.

[0033] The term "and / or" herein is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, B exists alone, and A and B exist simultaneously. The term "and" herein is a description of another association relationship of the associated objects, which means that there can be two relationships, for example, A and B can mean that A exists alone and A and B exist simultaneously. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0034] The term "at least one" herein is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, at least one of A and B can mean that A exists alone, A and B exist simultaneously, and B exists alone.

[0035] It is also need to point out that, in this article, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion.

[0036] Embodiment 1

[0037] This embodiment mainly describes a circuit suitable for the output voltage of the uniform constant self-powered device, as shown in the figure, including: wireless transmitting circuit, rectification energy storage circuit, detection circuit and power management circuit; Figs. 1-2 The wireless transmitting circuit includes: antenna pin ANTI, inductor LI, inductor L2, capacitor C1, capacitor C2, capacitor C3, chip U1, crystal oscillator X1.

[0038] The wireless transmitting circuit includes: antenna pin ANTI, inductor LI, inductor L2, capacitor C1, capacitor C2, capacitor C3, chip U1, crystal oscillator X1.

[0039] The rectification energy storage circuit includes: input end J2, NMOS tube Q1, NMOS tube Q2, NMOS tube Q3, diode D3, capacitor C4, capacitor C8, capacitor C9, switch S1.

[0040] The detection circuit includes: diode D4, diode D7, resistor R2, resistor R5, resistor R6, resistor R7, capacitor C5, capacitor C7.

[0041] The power management circuit includes: power management chip U2, inductor L3, resistor R1, resistor R3, resistor R4, capacitor C6.

[0042] The antenna pin ANTI in the wireless transmitting circuit is connected with the inductor L2 and the capacitor C3, the inductor L2 is connected with the capacitor C2; the capacitor C3 is grounded; the other end of the capacitor C2 is connected with the inductor LI and the chip U1 respectively; the inductor LI is connected with the capacitor C1 and the chip U1; one end of the capacitor C1 is grounded; the crystal oscillator X1 is connected with the chip U1, and the other end is grounded.

[0043] In the rectification energy storage circuit, one end of the NMOS tube Q1 is connected with the input end J2, and the other end is connected with the switch S1 and the ground respectively; one end of the NMOS tube Q2 is connected with the input end J2, and the other end is connected with the NMOS tube Q3 and the ground respectively; one end of the NMOS tube Q3 is connected with the switch S1, and the other end is connected with the capacitor C9; one end of the capacitor C4 is connected with the switch S1, and one end is connected with the resistor R5 and the capacitor C7 of the detection circuit; the diode D3 is connected with the capacitor C4 in parallel; one end of the capacitor C8 is connected with the power management chip U2 of the power management circuit, and one end is connected with the resistor R5 and the capacitor C7 of the detection circuit.

[0044] The resistance R2 of the detection circuit is connected with the resistance R5 at one end and with the diode D4 at the other end; the capacitor C7 is connected with the diode D4; the other end of the diode D4 is grounded; the resistance R6 is connected with the resistance R7 at one end and with the diode D7 at the other end; the capacitor C5 is connected with the diode D7 at one end and grounded at the other end.

[0045] The inductor L3 of the power management circuit is connected with the power management chip U2; the resistance R1 is connected with the inductor L3 at one end and with the resistance R3 at the other end; the other end of the resistance R3 is grounded; the capacitor C6 is connected with the inductor L3 at one end and grounded at the other end; the resistance R4 is connected with the inductor L3 at one end and grounded at the other end.

[0046] Further, the crystal oscillator X1 of the wireless transmitting circuit includes crystal pin 1, crystal pin 2, crystal pin 3, and crystal pin 4; the crystal pin 1 is connected with the chip U1; one end of the crystal pin 3 and the crystal pin 4 is grounded, respectively.

[0047] Further, the K1 and K2 connection ends are included in the detection circuit; the K1 connection end is located between the resistance R2 and the resistance R5; the K2 connection end is located between the resistance R6 and the resistance R7; the K1 and K2 connection ends in the detection circuit are connected with the chip U1 of the wireless transmitting circuit.

[0048] Further, the power management chip U2 of the power management circuit includes management pin 1, management pin 3, management pin 4, and management pin 5; the management pin 1 and the management pin 4 are connected with the capacitor C8, respectively; the management pin 3 is connected with the inductor L3; the management pin 5 is connected with the resistance R1 and the resistance R3.

[0049] Further, the input end J2 of the rectification energy storage circuit is used for connecting external energy supply.

[0050] Further, the diode D4, the resistance R2, the resistance R5, and the capacitor C7 in the detection circuit are used for detecting the pressing action and triggering the signal, which is output to the chip U1 through the K1 connection end.

[0051] Further, the diode D7, the resistance R6, the resistance R7, and the capacitor C5 in the detection circuit are used for detecting the rebound action and triggering the signal, which is output to the chip U1 through the K2 connection end.

[0052] In this embodiment, the components such as Q3, C9, and S1 are designed carefully to work cooperatively to store and release electric energy in the pressing and rebounding stages, respectively, so that more uniform electric energy output is realized, which not only avoids the complexity and unpredictability caused by mechanical structure adjustment, but also greatly improves the precision and efficiency of electric energy management. The stable and reliable power support provided by the wireless communication module ensures the integrity and accuracy of the instruction transmission, greatly improves the user experience, and widens the application range of the self-powered equipment.

[0053] Embodiment 2

[0054] The embodiment describes the function of each element of the circuit suitable for the output voltage of the self-powered device, including, in the wireless transmitting circuit, ANT1 is the connection point of the antenna for transmitting wireless signals; L2 is an inductor for matching the impedance of the antenna; C2 is a capacitor, which together with L2 forms a resonance circuit for adjusting the resonance frequency of the antenna; C3 is a capacitor for bypassing high-frequency noise to ensure the purity of the signal; VDD is the power input end for providing a voltage of 2.0V; GND is the ground wire, which is the common ground end of the circuit; C1 is a capacitor for filtering to ensure the stability of the power supply and reduce the influence of power supply noise on the circuit; U1 is a wireless transmitting chip, which is the core part of the circuit and is responsible for signal modulation and transmission; LED is a light-emitting diode, which is usually used to indicate the working state of the circuit; X1 (XTAL) is a crystal oscillator for providing the clock signal required by the chip to ensure the accuracy and stability of the signal; K1, K2, K3, K4 are input and output pins of the chip for connection and communication with external circuits;

[0055] X1 is a switch for controlling the on-off of the circuit, which is a manual switch or a logic control signal;

[0056] The function of the wireless transmitting circuit is to transmit wireless signals through the antenna, which ensures the purity and stability of the signal through the filtering and matching circuit, provides accurate clock signals through the crystal oscillator, and controls the on-off of the circuit through the switch;

[0057] In the rectifying and energy storage circuit, J2 is the input end for connecting external energy collection devices (such as buttons), Q1, Q2, Q3 are used for rectification and protection of the circuit to ensure unidirectional current flow; C9 is a capacitor for storing energy; S1 is a switch for controlling the flow direction of energy; C4 is a capacitor for filtering to reduce power supply noise.

[0058] In the detection circuit, diode D4, resistor R2, resistor R5 and capacitor C7 are used to detect the pressing action and trigger the signal, which is output to chip U1 through K1 connection end; diode D7, resistor R6, resistor R7 and capacitor C5 are used to detect the rebound action and trigger the signal, which is output to chip U1 through K2 connection end.

[0059] In the power management circuit, U2 is a power management chip for voltage stabilization and power supply; L3 is an inductor for filtering and energy storage; C6 is a capacitor for filtering and energy storage; R1, R3, R4 are resistors for current limiting and voltage division; VDD is the output end for providing a stable power supply voltage (2.0V); GND is the ground wire, which is the common ground end of the circuit.

[0060] The embodiment provides stable power output through a wireless transmitting circuit, a rectification energy storage circuit, a detection circuit and a power management circuit, and the detection and control parts ensure correct triggering of signals in the pressing and rebounding processes, thereby realizing effective utilization of energy.

[0061] Embodiment 3

[0062] The embodiment based on the embodiment 1 describes a specific operation of a circuit suitable for output voltage of a self-powered device, when the generator (for example, a button) is pressed, the generated energy is rectified through Q1, Q3 and Q2, and charges the capacitors C9 and C4 respectively. This part is responsible for collecting and storing energy during pressing, and at the same time, prepares for subsequent use.

[0063] When the generator is pressed, the S1 button is disconnected, preventing C9 from discharging, ensuring that part of the energy is stored in C9 during pressing, and the energy provided by C4 is used to power U2, and after synchronous voltage reduction by U2, the RF chip U1 is provided with the required energy for work, which ensures effective distribution and utilization of energy.

[0064] The key detection circuit composed of D4, C7, R2 and R5 makes K1 connected to ground when the generator is pressed, thereby triggering the K1 key value signal and identifying the user's input action.

[0065] When the generator rebounds, the energy flows out from VSS, and is rectified through Q2, Q3 and Q1 again to charge C9 and C4. At this time, the S1 button is connected, allowing C9 to release the previously stored energy, together with the energy generated during rebounding, to power U2, ensuring that the RF chip U1 has sufficient and stable energy supply.

[0066] At the same time of rebounding, the detection circuit composed of D7, C5, R6 and R7 makes K2 connected to ground, triggering the K2 key value signal and identifying the user's input action, but this time it is for the rebounding action.

[0067] The embodiment describes in detail that each part of the wireless transmitting circuit, the rectification energy storage circuit, the detection circuit and the power management circuit works cooperatively to solve the problem of uneven generation of power during the reciprocating generation process of the self-powered device, and to ensure that the wireless communication module and other components that rely on these energy can work stably.

[0068] The above is only a preferred embodiment of the utility model, and it does not limit the protection scope of the utility model. For those skilled in the art, the utility model can be changed and varied in various ways; any change, modification, replacement, integration and parameter change of these embodiments within the spirit and principle of the utility model, which can realize the same function without departing from the principle and spirit of the utility model, falls within the protection scope of the utility model.

Claims

1. A circuit suitable for the output voltage of a self-powered device with constant voltage, characterized in that, include: Wireless transmission circuit, rectifier energy storage circuit, detection circuit and power management circuit; The wireless transmission circuit includes: antenna pin ANT1, inductor L1, inductor L2, capacitor C1, capacitor C2, capacitor C3, chip U1, and crystal oscillator X1; The rectifier energy storage circuit includes: input terminal J2, NMOS transistor Q1, NMOS transistor Q2, NMOS transistor Q3, diode D3, capacitor C4, capacitor C8, capacitor C9, and switch S1; The detection circuit includes: diode D4, diode D7, resistor R2, resistor R5, resistor R6, resistor R7, capacitor C5, and capacitor C7; The power management circuit includes: a power management chip U2, an inductor L3, a resistor R1, a resistor R3, a resistor R4, and a capacitor C6; In the wireless transmission circuit, antenna pin ANT1 is connected to inductor L2 and capacitor C3; inductor L2 is connected to capacitor C2; capacitor C3 is grounded; the other end of capacitor C2 is connected to inductor L1 and chip U1 respectively; inductor L1 is connected to capacitor C1 and chip U1; one end of capacitor C1 is grounded; crystal oscillator X1 is connected to chip U1, and the other end is grounded. In the rectifier energy storage circuit, one end of NMOS transistor Q1 is connected to input terminal J2, and the other end is connected to switch S1 and ground. One end of NMOS transistor Q2 is connected to input terminal J2, and the other end is connected to NMOS transistor Q3 and ground. One end of NMOS transistor Q3 is connected to switch S1, and the other end is connected to capacitor C9, with one end of capacitor C9 grounded. One end of capacitor C4 is connected to switch S1, and the other end is connected to resistor R5 and capacitor C7 of the detection circuit. Diode D3 is connected in parallel with capacitor C4. One end of capacitor C8 is connected to power management chip U2 of the power management circuit, and the other end is connected to resistor R5 and capacitor C7 of the detection circuit. In the detection circuit, one end of resistor R2 is connected to resistor R5, and the other end is connected to diode D4; capacitor C7 is connected to diode D4; the other end of diode D4 is grounded; one end of resistor R6 is connected to resistor R7, and the other end is connected to diode D7; one end of capacitor C5 is connected to diode D7, and the other end is grounded. The inductor L3 of the power management circuit is connected to the power management chip U2; one end of the resistor R1 is connected to the inductor L3, and the other end is connected to the resistor R3; the other end of the resistor R3 is grounded; one end of the capacitor C6 is connected to the inductor L3, and the other end is grounded; one end of the resistor R4 is connected to the inductor L3, and the other end is grounded.

2. The circuit for a constant self-powered equipment output voltage according to claim 1, characterized in that, The crystal oscillator X1 of the wireless transmission circuit includes crystal pin 1, crystal pin 2, crystal pin 3, and crystal pin 4; crystal pin 1 is connected to chip U1; one end of crystal pin 3 and crystal pin 4 are respectively grounded.

3. The circuit for a constant self-powered equipment output voltage according to claim 1, characterized in that, The detection circuit includes K1 and K2 connection terminals; the K1 connection terminal is located between resistor R2 and resistor R5; the K2 connection terminal is located between resistor R6 and resistor R7; the K1 and K2 connection terminals in the detection circuit are connected to the wireless transmission circuit chip U1.

4. The circuit for a constant self-powered equipment output voltage according to claim 1, characterized in that, The power management chip U2 of the power management circuit includes management pin 1, management pin 3, management pin 4, and management pin 5; management pin 1 and management pin 4 are respectively connected to capacitor C8; management pin 3 is connected to inductor L3; and management pin 5 is connected to resistor R1 and resistor R3.

5. A circuit suitable for the output voltage of a self-powered device with constant voltage as described in claim 1, characterized in that, The input terminal J2 of the rectifier energy storage circuit is used to connect to an external source of energy.

6. A circuit suitable for the output voltage of a self-equalizing self-powered device according to claim 1 or 3, characterized in that, The diode D4, resistor R2, resistor R5, and capacitor C7 in the detection circuit are used to detect the pressing action and trigger a signal, which is output to chip U1 through the K1 connection terminal.

7. A circuit suitable for the output voltage of a self-equalizing self-powered device according to claim 1 or 3, characterized in that, The diode D7, resistor R6, resistor R7 and capacitor C5 in the detection circuit are used to detect the rebound action and trigger a signal, which is output to chip U1 through the K2 connection terminal.

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