Phase-locked super-linear control method and device based on phase window decision

Abstract

The application discloses a phase-locked super-linear control method and device based on phase window judgment, and relates to the technical field of automatic control; the core step is to acquire a real-time phase of a target physical quantity and a reference phase, calculate an effective phase window boundary through a special phase-locked super-linear judgment rule, compare the phase signals, and output a precise control instruction; the device comprises a phase acquisition module, a judgment operation module, and a control execution module. The application overcomes the defects of traditional delay feedback logic, realizes fast and accurate phase control, has the advantages of fast response speed, high control precision, excellent energy efficiency, and strong scene adaptability, and can be widely applied to phase-locked super-linear power amplification, dynamic attitude control, hardware circuit adjustment and the like.

Description

Technical Field

[0001] This invention relates to the fields of automatic control, signal processing, and power amplification, specifically to a phase-locked superlinear control method and device based on phase window decision, which is particularly suitable for scenarios of precise phase control, high-efficiency power conversion, and dynamic attitude adjustment. It can be widely applied to scenarios such as power amplification, dynamic attitude adjustment, and signal processing, and is especially suitable for the original phase-locked superlinear power amplification series technology of this invention. Background Technology

[0002] In the fields of existing automatic control, power amplification, and dynamic attitude adjustment technologies, conventional control schemes mostly adopt traditional feedback control, PID control, and ordinary phase-locked loop control architectures. These architectures generally suffer from technical defects such as large phase response delay, low accuracy in determining control thresholds, limited system energy efficiency, and poor adaptability to complex scenarios. Summary of the Invention

[0003] Technical problems to be solved This invention addresses the shortcomings of existing technologies by providing a phase-locked superlinear control method and apparatus based on phase window decision. It solves the technical problems of phase response delay, low control accuracy, limited energy efficiency, and poor scenario adaptability in existing control architectures, achieving fast and high-precision phase control, improving system stability and energy efficiency, and adapting to multiple scenarios for expanded applications. Technical solution

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The core of this invention is to collect the phase signal of the target physical quantity, calculate the effective phase window by combining it with a dedicated phase-locked superlinear decision rule, and achieve precise and real-time control by comparing the phase windows. This eliminates the delayed feedback logic of traditional control architectures, thereby shortening the control response time and improving control accuracy from the root.

[0005] The core mathematical expression of the phase-locked superlinear decision rule is: when f ≤ (1 / (2πt_d)) ×arcsin (X_th / X_p), the current phase falls into the effective phase window; further, when introducing the reverse feedback physical quantity, the forward and reverse coupling decision rule is adopted: f ≤ (1 / (2πt_d)) × arcsin ( (X_th_f + σ・X_back) / X_p ).

[0006] The technical solution of this invention can be further extended to include a timing generation unit, a parallel power extraction front-end, a flying capacitor array, a phase window calibration unit, a multi-domain signal normalization unit, an interlocked complementary self-organizing system, a switched capacitor replication architecture, a power limiting module, a phase-locked power extraction front-end, a crossover elimination module, a digital power amplifier (including the original phase-locked superlinear power amplifier series architecture of this invention, which is extended based on the phase window decision core technology solution of this invention, covering the power amplifier body, frequency division control and related power amplification units), a forward composite phase-locked system, a load adaptive output system, and a reverse constraint system. All of the above modules are based on the phase window decision core principle of this invention and can independently form a technical solution and be protected. Beneficial effects

[0007] By adopting phase window direct decision logic, the delay problem of traditional feedback control is eliminated, achieving fast response and significantly improving control response efficiency; It achieves precise threshold determination through exclusive decision rules, with small control error, adaptable to various physical quantity control scenarios, and strong versatility; The system architecture is simplified, eliminating the need for complex external circuits, effectively improving system energy efficiency and reducing control energy consumption; It can be adapted to various application scenarios, including hardware circuit control, dynamic attitude control, motion adjustment, power amplification, etc., and has good scalability, which can fully support a series of technology derivatives. Attached Figure Description

[0008] Figure 1. Overall flowchart of the phase-locked superlinear control method; Figure 2. Schematic diagram of phase window and decision threshold comparison. Detailed Implementation

[0009] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example 1: Control of physical quantities of base voltage

[0010] This embodiment is applied to a power amplifier voltage control scenario, and the specific implementation steps are as follows: Step 1: The phase acquisition module acquires the real-time phase of the circuit voltage signal, obtains the reference phase, and transmits it to the decision calculation module; Step 2: Preset the decision voltage threshold X_th, voltage peak X_p, and phase delay time t_d. Substitute the basic decision rules into the decision calculation module: determine whether f ≤ (1 / (2πt_d)) × arcsin (X_th / X_p) is satisfied, and calculate the effective window boundary of the voltage phase. Step 3: Compare the real-time voltage phase with the effective phase window. When the real-time phase falls within the window range, the control execution module immediately outputs a voltage stabilization control command to achieve precise voltage phase-locked control. Example 2: Forward and Reverse Coupling Feedback Control

[0011] Step 1: The phase acquisition module acquires the positive physical quantity phase, and the reverse feedback receiving module acquires the reverse feedback physical quantity X_back; Step 2: Substitute the forward and reverse coupling decision rules into the decision operation module: determine whether f ≤ (1 / (2πt_d)) × arcsin ( (X_th_f + σ・X_back) / X_p ), where σ takes the value 0.8, and calculate the effective phase window under the coupling state; Step 3: After completing the phase comparison, output the closed-loop control command to achieve dynamic bidirectional precise control. Example 3: Quaternion Attitude Control Application

[0012] The target object's attitude error angle is converted into an equivalent phase signal. The equivalent phase data is collected by the phase acquisition module, substituted into the phase-locked superlinear decision rule, and the effective phase window for attitude control is calculated. Then, the attitude adjustment command is output to achieve precise phase-locking of quaternion attitude, avoid attitude deviation, and adapt to six-degree-of-freedom motion and motion scan attitude compensation scenarios. Example 4: Application of Switched Capacitor Hardware Architecture

[0013] The control device integrates a switched-capacitor hardware adapter unit. It acquires the timing phase signal of the hardware circuit through a phase acquisition module, performs decision calculations, and outputs timing control commands. This achieves precise switching of the switched capacitors and distortion-free control of the digital power amplifier signal. It also supports load adaptive adjustment logic, improving the stability of the hardware circuit control. The output of the switched-capacitor architecture does not include an LC low-pass filter circuit. Example 5: Application of Reverse Constraint System

[0014] This embodiment sets an ideal state threshold range. When the actual state (such as current, temperature) deviates from the range, reverse constraint actions (such as current limiting, disconnection, alarm) are executed. The reverse constraint signal can be used as a feedback quantity X_back to be input into the forward and reverse coupling decision rules to achieve closed-loop protection. Example 6: Application of Phase-Locked Super-Linear Power Amplifier

[0015] This embodiment applies the method of the present invention to an original phase-locked loop (PLL) super-linear power amplifier series. This power amplifier includes a ground-based amplifier, an automatic level-matching module, a comparator array, and a switched-capacitor array. The phase acquisition module obtains the real-time phase of the input audio signal, and the decision processing module controls the conduction timing of the switched-capacitor array according to a phase window threshold, transferring charge to the output terminal to directly drive the speaker, without an LC low-pass filter circuit at the output terminal. This embodiment achieves open-loop, feedback-free, super-linear power amplification with extremely low distortion characteristics, and is a preferred specific implementation of the method of the present invention in the field of audio power amplifiers. Example 7: General Control Application of Mechanical, Thermal, and Magnetic Quantities

[0016] This embodiment extends the method of the present invention to control scenarios involving mechanical, thermal, and magnetic quantities. The phase or timing characteristic signals of the corresponding physical quantities are acquired by a phase acquisition module, and the effective phase window is determined by substituting these signals into a phase-locked loop (PLL) superlinear decision rule. Based on the phase comparison results, control commands are output to achieve precise PLL control of physical quantities such as thrust, rotational speed, temperature, and magnetic field strength. Those skilled in the art, based on the disclosure of this invention, can apply this solution to control scenarios for various detectable physical quantities without any inventive effort.

[0017] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For those skilled in the art, any improvements, modifications, or equivalent substitutions or reasonable reorganizations of the technical features of this invention made without departing from the principles of the invention should be included within the scope of protection of this invention.

Claims

1. A phase-locked superlinear control method based on phase window decision, characterized in that, Includes the following steps: The system acquires the real-time phase signal of the target physical quantity and the reference phase; determines the effective phase window boundary based on the preset decision threshold, the peak value of the physical quantity, and the phase delay coefficient through the phase-locked superlinear decision rule; compares the real-time phase signal with the effective phase window boundary, and outputs a precise control command when the real-time phase signal falls within the effective phase window range.

2. The method according to claim 1, characterized in that, The phase-locked superlinear decision rule is as follows: when f ≤ (1 / (2πt_d)) × arcsin (X_th / X_p), the current phase falls into the effective phase window; where f is the phase frequency, t_d is the phase delay time, X_th is the preset decision threshold, and X_p is the peak value of the target physical quantity. The target physical quantity is a detectable physical quantity, including any one of electrical, mechanical, acoustic, optical, thermal, and magnetic quantities.

3. The method according to claim 2, characterized in that, When introducing a reverse feedback physical quantity, the forward and reverse coupling decision rule is adopted: when f ≤ (1 / (2πt_d)) × arcsin ( (X_th_f + σ・X_back) / X_p ), the current phase falls into the effective phase window; where σ is the coupling coefficient, with a value range of [-1,1], and X_back is the reverse feedback physical quantity, including any one or more of back electromotive force, load current, temperature drift, angular velocity or position deviation.

4. The method according to claim 1, characterized in that, It also includes steps for normalizing or timing synchronization calibration of the target physical quantity to eliminate interference signals and timing offset errors in the physical quantity.

5. The method according to claim 1, characterized in that, When applied to quaternion attitude control, the attitude error angle is converted into an equivalent phase signal, which is then substituted into the decision rules to achieve precise phase-locked control of the attitude.

6. A phase-locked superlinear control device based on phase window decision, characterized in that, It includes a phase acquisition module, a decision calculation module, and a control execution module; the phase acquisition module is used to acquire the real-time phase signal of the target physical quantity and the reference phase; the decision calculation module is used to determine the effective phase window boundary according to preset parameters and complete the phase comparison; the control execution module is used to output precise control commands when the real-time phase signal falls into the effective phase window.

7. The apparatus according to claim 6, characterized in that, The decision calculation module is configured to implement the decision rules as described in claim 2 or 3.

8. The apparatus according to claim 6, characterized in that, It also includes a reverse feedback receiving module, which collects the reverse feedback physical quantity and transmits it to the decision calculation module; it also includes a timing calibration module and a normalization processing module.

9. The apparatus according to claim 6, characterized in that, The device is compatible with switched capacitor architecture (including the original phase-locked super linear power amplifier exclusive series architecture of this invention), digital power amplifier or load adaptive adjustment hardware circuit; wherein the output terminal of the switched capacitor architecture does not have an LC low-pass filter circuit.

10. The apparatus according to claim 6, characterized in that, When the device is used for six-degree-of-freedom motion control or motion scanning posture compensation, it integrates a multi-dimensional phase synchronization acquisition unit.

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