Loading intelligent feedback circuit

Abstract

The utility model provides a loading intelligent feedback circuit, which relates to the technical field of power electronics and comprises a differential amplification module, a first pushing module, a second pushing module, a power amplification module and an intelligent feedback module. The differential amplification module is respectively connected with the first pushing module and the intelligent feedback module, the first pushing module is connected with the second pushing module, the second pushing module is connected with the power amplification module, and the power amplification module is connected with the intelligent feedback module. According to the utility model, the differential amplification module, the first pushing module, the second pushing module, the power amplification module and the intelligent feedback module are introduced, so that accurate amplification and intelligent feedback of signals are realized, the problems existing in a traditional audio amplification circuit are effectively solved, and powerful guarantee is provided for high fidelity and dynamic range of an audio system.

Description

Technical Field

[0001] This utility model relates to the field of power electronics technology, and in particular to a loaded intelligent feedback circuit. Background Technology

[0002] In materials mechanics, structural engineering, and other related scientific research fields, the loading control system is a crucial component of experimental equipment, directly impacting the accuracy and reliability of experimental results. Traditional loading control systems primarily rely on manual operation by experimenters to control the application of force or displacement according to preset loading steps or increments. While this control method can meet basic experimental needs to a certain extent, its inherent limitations are becoming increasingly apparent.

[0003] In the initial stages of loading, because the material or structure is in an elastic phase, it can withstand a large increase in force or displacement. Therefore, researchers typically set a relatively large loading step size to improve experimental efficiency. However, as loading progresses and the material or structure approaches its failure point, its load-bearing capacity decreases sharply. Continuing to use a large loading step size at this point can easily lead to experimental failure or data distortion. Therefore, researchers need to continuously observe the strain or displacement of the component during loading and adjust the loading increment as needed based on experience.

[0004] However, this control method, which relies on manual observation and experience-based judgment, has several shortcomings. First, due to differences in the observation angles, judgment abilities, and experience levels of the experimenters, the control of the loading process is highly subjective, making it difficult to guarantee the accuracy and consistency of the experimental results. Second, manual adjustments are often delayed; by the time the experimenters discover that the component is about to reach its failure point, the optimal adjustment opportunity has often been missed, leading to the loss of crucial data or deviations in experimental results. Furthermore, manual operation reduces experimental efficiency and increases experimental costs.

[0005] Therefore, a loading intelligent feedback circuit is proposed. Utility Model Content

[0006] This specification provides a loaded intelligent feedback circuit. By introducing a differential amplifier module, a first driver module, a second driver module, a power amplifier module, and an intelligent feedback module, it achieves precise signal amplification and intelligent feedback, effectively solving the problems existing in traditional audio amplifier circuits and providing strong support for the high fidelity and dynamic range of audio systems.

[0007] This specification provides a loading intelligent feedback circuit, including: a differential amplifier module, a first driver module, a second driver module, a power amplifier module, and an intelligent feedback module;

[0008] The differential amplification module is connected to the first driving module and the intelligent feedback module respectively. The first driving module is connected to the second pushing module. The second driving module is connected to the power amplification module. The power amplification module is connected to the intelligent feedback module.

[0009] Optionally, the differential amplification module includes: amplifier U1, amplifier U2, and amplifier U3. Amplifier U1 is connected to resistors R1, R2, and R4 respectively. Resistor R1 is connected to resistors R2, R4, and R3 respectively. Resistor R2 is connected to resistor R3 and amplifier U2 respectively. Resistor R3 is connected to amplifier U2 and resistor R5 respectively. Resistor R4 is connected to resistor R6 and amplifier U3 respectively. Resistor R5 is connected to resistor R6 and amplifier U3 respectively. Resistor R7 is connected to amplifier U3 and the first driving module respectively.

[0010] Optionally, the first driving module includes: a resistor R8 connected to the resistor R7, the resistor R8 connected to the capacitor C1, the capacitor C1 connected to the resistor R9, the resistor R9 connected to the resistor R10 and the base of the transistor Q1, the collector of the transistor Q1 connected to the resistor R10 and the capacitor C2, the emitter of the transistor Q1 grounded, the resistor R10 connected to the capacitor C2 and the second driving module, and the capacitor C2 connected to the resistor R13.

[0011] Optionally, the second driving module includes: a resistor R11 connected to the resistor R10, the resistor R11 connected to a capacitor C3, the capacitor C3 connected to a resistor R12, a resistor R14, and the base of a transistor Q3, the collector of the transistor Q3 connected to the resistor R12, the emitter of the transistor Q3 connected to a resistor R15 and a capacitor C4, the capacitor C4 connected to a resistor R16, and the resistor R16 connected to the power amplifier module.

[0012] Optionally, the power amplification module includes: a capacitor C9 connected to the resistor R16; the capacitor C9 is connected to the resistor R23 and the base of the transistor Q4; the collector of the transistor Q4 is connected to a transformer; the transformer includes a primary coil U5 and a secondary coil U6; the primary coil U5 is connected to the collector of the transistor Q4; the primary coil U5 is connected to the secondary coil U6; the secondary coil U6 is connected to the resistor R24; and the emitter of the transistor Q4 is connected to the intelligent feedback module.

[0013] Optionally, the intelligent feedback module includes: an amplifier U4 connected to the emitter of the transistor Q4; the amplifier U4 is connected to resistors R22, R21, and R20 respectively; resistor R22 is connected to resistor R21; resistor R21 is connected to capacitor C8; capacitor C8 is connected to capacitor C7; capacitor C7 is connected to the differential amplifier module; resistor R20 is connected to capacitor C6; capacitor C6 is connected to the emitter of transistor Q2 and resistor R19 respectively; the emitter of transistor Q2 is connected to resistor R19; the collector of transistor Q2 is connected to resistor R18; the base of transistor Q2 is connected to resistors R17 and R18 respectively; and resistor R17 is connected to resistor R18 and capacitor C5 respectively.

[0014] This specification demonstrates how the precise amplification, stable transmission, and efficient output of signals are achieved through the organic integration of a differential amplification module, a first driver module, a second driver module, a power amplification module, and an intelligent feedback module. The differential amplification module effectively improves the signal's anti-interference capability, ensuring signal accuracy. The first and second driver modules, through reasonable circuit design, achieve step-by-step signal amplification and stable transmission. The power amplification module further enhances the signal's output power, meeting the needs of various application scenarios. The intelligent feedback module can adjust the feedback signal in real time according to changes in the output signal, thereby achieving closed-loop control of the entire circuit. This intelligent feedback mechanism not only improves the circuit's stability and reliability but also enables the circuit to automatically adjust its operating state when facing different loads and input signals to achieve optimal output performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a loaded intelligent feedback circuit provided in an embodiment of this specification;

[0017] Figure 2 This is a schematic diagram of a loaded intelligent feedback circuit provided for an embodiment of this specification.

[0018] The attached diagram shows: 100, differential amplifier module; 200, first driver module; 300, second driver module; 400, power amplifier module; 500, intelligent feedback module. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0020] The following is in conjunction with the appendix Figure 1-2 Exemplary embodiments of the present invention will be described more fully. However, exemplary embodiments can be implemented in many forms and should not be construed as limiting the present invention to the embodiments set forth herein. Rather, these exemplary embodiments are provided to make the present invention more comprehensive and complete, and to facilitate the full communication of the inventive concept to those skilled in the art. The same reference numerals in the figures denote the same or similar elements, components, or parts, and therefore repeated descriptions of them are omitted.

[0021] Subject to the technical concept of this utility model, the features, structures, characteristics or other details described in a particular embodiment may be combined in one or more other embodiments in a suitable manner.

[0022] In the description of specific embodiments, the features, structures, characteristics, or other details described herein are intended to enable those skilled in the art to fully understand the embodiments. However, it is not excluded that those skilled in the art can practice the technical solutions of this utility model without one or more of the specific features, structures, characteristics, or other details.

[0023] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0024] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0025] The terms “and / or” or “and / or” include all combinations of any one or more of the listed items.

[0026] Figure 1A schematic diagram of a loaded intelligent feedback circuit provided in the embodiments of this specification includes: a differential amplifier module 100, a first driving module 200, a second driving module 300, a power amplifier module 400, and an intelligent feedback module 500;

[0027] The differential amplifier module 100 is connected to the first push module 200 and the intelligent feedback module 500 respectively. The first push module 200 is connected to the second push module. The second push module 300 is connected to the power amplifier module 400. The power amplifier module 400 is connected to the intelligent feedback module 500.

[0028] In the specific embodiments described in this specification, the differential amplifier module 100 is responsible for receiving and amplifying the input signal, effectively suppressing common-mode noise and improving the signal-to-noise ratio. The output terminals of the differential amplifier module 100 are connected to the first driver module 200 and the intelligent feedback module 500, respectively. The signal output to the first driver module 200 is used for subsequent amplification processing, while the signal output to the intelligent feedback module 500 is used to implement closed-loop control of the circuit. The first driver module 200 receives the signal from the differential amplifier module 100 and performs preliminary amplification and shaping. The second driver module 300 further amplifies the signal from the first driver module 200 and performs necessary adjustments. The power amplifier module 400 is the output section of the entire circuit, responsible for converting the amplified signal into an output signal with sufficient power. The intelligent feedback module 500 is an important component of the circuit, responsible for receiving the output signal from the power amplifier module 400 and adjusting the feedback signal in real time according to changes in the output signal.

[0029] Optionally, the differential amplifier module 100 includes: amplifier U1, amplifier U2, and amplifier U3. Amplifier U1 is connected to resistors R1, R2, and R4 respectively. Resistor R1 is connected to resistors R2, R4, and R3 respectively. Resistor R2 is connected to resistor R3 and amplifier U2 respectively. Resistor R3 is connected to amplifier U2 and resistor R5 respectively. Resistor R4 is connected to resistor R6 and amplifier U3 respectively. Resistor R5 is connected to resistor R6 and amplifier U3 respectively. Resistor R7 is connected to amplifier U3 and the first driving module 200 respectively.

[0030] In the specific implementation of this specification, such as Figure 2As shown, the differential amplifier module 100 mainly consists of amplifier U1, amplifier U2, amplifier U3, and a series of precisely configured resistors. These resistors (R1, R2, R3, R4, R5, R6, and R7) play a crucial role in the circuit, determining not only the signal amplification factor but also affecting the circuit's stability and anti-interference capability.

[0031] Specifically, amplifier U1 is the input stage of differential amplifier module 100. It receives signals from the outside and, through connections with resistors R1, R2, and R4, splits the signal into two paths for differential amplification. Resistor R1, as an input resistor, together with resistors R2 and R4, forms a differential input pair for receiving differential signals. Simultaneously, resistor R3, as a feedback resistor, is connected to resistor R2 and amplifier U2, forming a negative feedback loop for the first-stage differential amplification, which helps stabilize the amplifier's gain and frequency response. Amplifier U2 is the first-stage amplification output of differential amplifier module 100. Through the connection of resistors R2 and R3, it receives the differential signal from amplifier U1 and amplifies it. The amplified signal is then passed to the next stage amplifier U3 through resistor R5. Amplifier U3, as the second-stage amplification output of differential amplifier module 100, receives the signal from amplifier U2 (passed through resistor R5) and another signal from resistor R4 (passed through resistor R6). These two signals undergo differential amplification in amplifier U3 to obtain the final amplified output signal. Resistor R7 serves as the output resistor, transmitting the amplified signal to the first drive module 200 for subsequent circuit processing.

[0032] Optionally, the first driving module 200 includes: a resistor R8 connected to the resistor R7, the resistor R8 connected to the capacitor C1, the capacitor C1 connected to the resistor R9, the resistor R9 connected to the resistor R10 and the base of the transistor Q1, the collector of the transistor Q1 connected to the resistor R10 and the capacitor C2, the emitter of the transistor Q1 grounded, the resistor R10 connected to the capacitor C2 and the second driving module 300, and the capacitor C2 connected to the resistor R13.

[0033] In the specific implementation of this specification, the first driving module 200 is responsible for receiving signals from the differential amplifier module 100 and performing preliminary amplification and shaping processing on them so that subsequent circuits can process these signals more effectively. The base of transistor Q1 is connected to the base of transistor Q1 via a series circuit consisting of resistor R9, resistor R7, resistor R8, and capacitor C1. This series circuit serves as signal coupling and filtering, ensuring that the signal input to the base of transistor Q1 is stable and pure. The combination of resistor R8 and capacitor C1 forms a low-pass filter, which helps to eliminate high-frequency noise and interference in the input signal. The filtered signal is then transmitted to the base of transistor Q1 via resistor R9. The collector of transistor Q1 is connected to the power supply via resistor R10 and is connected in parallel with capacitor C2. This parallel circuit serves to stabilize the output voltage and provide transient current. When transistor Q1 is turned on, the collector current flows to the power supply through resistor R10, while capacitor C2 can absorb or release charge to maintain the stability of the output voltage. The emitter of transistor Q1 is grounded, forming a common ground circuit, which helps reduce circuit complexity and cost. Meanwhile, resistor R10 is also connected to the second driver module 300 through capacitor C2, transmitting the amplified signal to the next stage circuit. Finally, resistor R13 and capacitor C2 are connected in parallel, forming a bypass circuit to eliminate the DC component in the output signal, ensuring that the output to the second driver module 300 is an AC signal.

[0034] Optionally, the second driving module 300 includes: a resistor R11 connected to the resistor R10, the resistor R11 connected to a capacitor C3, the capacitor C3 connected to a resistor R12, a resistor R14, and the base of a transistor Q3, the collector of the transistor Q3 connected to the resistor R12, the emitter of the transistor Q3 connected to a resistor R15 and a capacitor C4, the capacitor C4 connected to a resistor R16, and the resistor R16 connected to the power amplifier module 400.

[0035] In the specific embodiment of this specification, the second driver module 300 receives the signal from the first driver module 200 and further amplifies and shapes it to provide a stable and efficient input signal to the power amplifier module 400. The base of transistor Q3 is connected to resistor R10 from the first driver module 200 through resistor R11, receiving the initially amplified signal. Simultaneously, resistor R11 is also connected in series with capacitor C3, forming a low-pass filter to eliminate high-frequency noise and interference in the input signal. The other end of capacitor C3 is connected not only to resistor R12 but also to resistor R14 and the base of transistor Q3. Here, resistors R12 and R14 together constitute the bias circuit of transistor Q3, used to determine the operating point of transistor Q3. By appropriately adjusting the resistance values ​​of these two resistors, the amplification performance and stability of transistor Q3 can be optimized. The collector of transistor Q3 is connected to the power supply through resistor R12, forming a current loop. When transistor Q3 is turned on, the collector current flows to the power supply through resistor R12, and transistor Q3 amplifies the input signal. The emitter of transistor Q3 is connected to capacitor C4 through resistor R15, forming an emitter follower circuit. This circuit further improves signal stability and load-driving capability. Capacitor C4 acts as a bypass capacitor, eliminating the DC component in the output signal. Finally, resistor R16 and capacitor C4 are connected in parallel to transmit the amplified AC signal to power amplifier module 400. Resistor R16 here serves to limit current and match impedance, ensuring that the signal can be efficiently transmitted to the next stage circuit.

[0036] Optionally, the power amplifier module 400 includes: a capacitor C9 connected to the resistor R16; the capacitor C9 is connected to the resistor R23 and the base of the transistor Q4; the collector of the transistor Q4 is connected to a transformer; the transformer includes a primary coil U5 and a secondary coil U6; the primary coil U5 is connected to the collector of the transistor Q4; the primary coil U5 is connected to the secondary coil U6; the secondary coil U6 is connected to the resistor R24; and the emitter of the transistor Q4 is connected to the intelligent feedback module 500.

[0037] In the specific implementation of this specification, the power amplifier module 400 is responsible for further amplifying the signal after pre-amplification to drive the load device. This module mainly consists of a transistor Q4, capacitor C9, resistor R23, transformer (including primary coil U5 and secondary coil U6), and resistor R24. Capacitor C9 acts as a coupling capacitor, connected between resistor R16 and the base of transistor Q4. It isolates DC and transmits AC signals, ensuring that only amplified AC signals can enter transistor Q4 for power amplification. Transistor Q4 is the core component of the power amplifier module 400; it operates in amplification mode, amplifying the input small signal into a high-power signal. The collector of transistor Q4 is connected to the power supply through the primary coil U5, which is also the input terminal of the transformer. When transistor Q4 is turned on, the collector current generates a magnetic field through the primary coil U5, which in turn induces an electromotive force in the secondary coil U6, thus achieving signal power amplification. The transformer is a crucial component in the power amplifier module 400. It utilizes the principle of electromagnetic induction to convert the low-power signal in the primary coil U5 into a high-power signal in the secondary coil U6. The output terminal of the secondary coil U6 is connected to resistor R24, which acts as a load resistor to convert the amplified signal into voltage or current output to drive subsequent devices.

[0038] It is worth noting that the emitter of transistor Q4 is connected to the intelligent feedback module 500. This connection constitutes closed-loop control of the circuit, enabling the output signal of the power amplifier module 400 to be fed back to the intelligent feedback module 500 in real time, thereby adjusting the input signals of the differential amplifier module 100 and the driver module, and achieving stability and performance optimization of the entire circuit system.

[0039] Optionally, the intelligent feedback module 500 includes: an amplifier U4 connected to the emitter of the transistor Q4; the amplifier U4 is connected to resistors R22, R21, and R20 respectively; resistor R22 is connected to resistor R21; resistor R21 is connected to capacitor C8; capacitor C8 is connected to capacitor C7; capacitor C7 is connected to the differential amplifier module 100; resistor R20 is connected to capacitor C6; capacitor C6 is connected to the emitter of transistor Q2 and resistor R19 respectively; the emitter of transistor Q2 is connected to resistor R19; the collector of transistor Q2 is connected to resistor R18; the base of transistor Q2 is connected to resistors R17 and R18 respectively; and resistor R17 is connected to resistor R18 and capacitor C5 respectively.

[0040] In the specific implementation of this specification, the intelligent feedback module 500 is responsible for monitoring the output signal of the power amplifier module 400 and adjusting the input of the differential amplifier module 100 in real time according to the changes in these signals, thereby realizing closed-loop control of the circuit. This module mainly consists of amplifier U4, transistor Q2, and its peripheral circuitry. Amplifier U4 is the core of the intelligent feedback module 500; it receives feedback signals from the power amplifier module 400 or a related node. In this assumption, the feedback signal is connected to the emitter of transistor Q4 in some way, and then input to amplifier U4. The output of amplifier U4 is connected to resistors R22, R21, and R20, respectively. Resistors R22 and R21, connected in series, form an RC filter circuit with capacitor C8 to smooth the output signal of amplifier U4 and reduce noise interference. The other end of capacitor C8 is connected to capacitor C7, which is directly connected to the differential amplifier module 100, sending the filtered feedback signal back to the differential amplifier module 100 to adjust its input signal. Resistor R20 is connected in series with capacitor C6 to form a low-pass filter, further processing the feedback signal. The other end of capacitor C6 is connected to the emitter of transistor Q2 and resistor R19. Here, transistor Q2 forms a voltage follower or emitter follower circuit to improve signal stability and load-driving capability. The collector of transistor Q2 is connected to the power supply or a reference potential through resistor R18, while its base is connected to resistor R18 and capacitor C5 through resistor R17. Resistor R17 and capacitor C5 together form the input filter circuit of transistor Q2, used to eliminate high-frequency noise in the base input signal.

[0041] This specification demonstrates how the precise amplification, stable transmission, and efficient output of signals are achieved through the organic integration of a differential amplifier module 100, a first driver module 200, a second driver module 300, a power amplifier module 400, and an intelligent feedback module 500. The differential amplifier module 100 effectively improves the signal's anti-interference capability, ensuring signal accuracy. The first driver module 200 and the second driver module 300, through reasonable circuit design, achieve step-by-step signal amplification and stable transmission. The power amplifier module 400 further enhances the signal's output power, meeting the needs of various application scenarios. The intelligent feedback module 500 can adjust the feedback signal in real time according to changes in the output signal, thereby achieving closed-loop control of the entire circuit. This intelligent feedback mechanism not only improves the circuit's stability and reliability but also enables the circuit to automatically adjust its operating state when facing different loads and input signals to achieve optimal output performance.

[0042] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that this utility model is not inherently related to any specific computer, virtual device, or electronic device, and various general-purpose devices can also implement this utility model. The above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0043] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0044] The above description is merely an embodiment of this application and is not intended to limit the scope of 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 scope of the claims of this application.

Claims

1. A loaded intelligent feedback circuit, characterized in that, include: Differential amplifier module (100), first driver module (200), second driver module (300), power amplifier module (400), intelligent feedback module (500); The differential amplifier module (100) is connected to the first driving module (200) and the intelligent feedback module respectively. The first driving module (200) is connected to the second driving module. The second driving module (300) is connected to the power amplifier module (400). The power amplifier module (400) is connected to the intelligent feedback module (500).

2. The intelligent feedback circuit as described in claim 1, characterized in that, The differential amplifier module (100) includes: amplifier U1, amplifier U2, and amplifier U3. Amplifier U1 is connected to resistors R1, R2, and R4 respectively. Resistor R1 is connected to resistors R2, R4, and R3 respectively. Resistor R2 is connected to resistor R3 and amplifier U2 respectively. Resistor R3 is connected to amplifier U2 and resistor R5 respectively. Resistor R4 is connected to resistor R6 and amplifier U3 respectively. Resistor R5 is connected to resistor R6 and amplifier U3 respectively. Resistor R7 is connected to amplifier U3 and the first drive module (200) respectively.

3. The intelligent feedback circuit as described in claim 2, characterized in that, The first driving module (200) includes: a resistor R8 connected to the resistor R7, the resistor R8 connected to the capacitor C1, the capacitor C1 connected to the resistor R9, the resistor R9 connected to the resistor R10 and the base of the transistor Q1, the collector of the transistor Q1 connected to the resistor R10 and the capacitor C2, the emitter of the transistor Q1 grounded, the resistor R10 connected to the capacitor C2 and the second driving module (300), and the capacitor C2 connected to the resistor R13.

4. The intelligent feedback circuit as described in claim 3, characterized in that, The second driving module (300) includes: a resistor R11 connected to the resistor R10, the resistor R11 connected to a capacitor C3, the capacitor C3 connected to the base of resistor R12, resistor R14 and transistor Q3 respectively, the collector of transistor Q3 connected to the resistor R12, the emitter of transistor Q3 connected to resistor R15 and capacitor C4 respectively, the capacitor C4 connected to resistor R16, and the resistor R16 connected to the power amplifier module (400).

5. The intelligent feedback circuit as described in claim 4, characterized in that, The power amplifier module (400) includes: a capacitor C9 connected to the resistor R16; the capacitor C9 is connected to the resistor R23 and the base of the transistor Q4; the collector of the transistor Q4 is connected to a transformer; the transformer includes a primary coil U5 and a secondary coil U6; the primary coil U5 is connected to the collector of the transistor Q4; the primary coil U5 is connected to the secondary coil U6; the secondary coil U6 is connected to the resistor R24; and the emitter of the transistor Q4 is connected to the intelligent feedback module (500).

6. The intelligent feedback circuit as described in claim 5, characterized in that, The intelligent feedback module (500) includes: an amplifier U4 connected to the emitter of the transistor Q4; the amplifier U4 is connected to resistors R22, R21, and R20 respectively; resistor R22 is connected to resistor R21; resistor R21 is connected to capacitor C8; capacitor C8 is connected to capacitor C7; capacitor C7 is connected to the differential amplifier module (100); resistor R20 is connected to capacitor C6; capacitor C6 is connected to the emitter of transistor Q2 and resistor R19 respectively; the emitter of transistor Q2 is connected to resistor R19; the collector of transistor Q2 is connected to resistor R18; the base of transistor Q2 is connected to resistors R17 and R18 respectively; and resistor R17 is connected to resistor R18 and capacitor C5 respectively.

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