Power supply circuit and method, system on chip, equipment and storage medium

Abstract

The embodiment of the invention discloses a power supply circuit, a power supply method, a system on chip, equipment and a storage medium, relates to the technical field of electronic circuits, and can improve the operation reliability and stability of the power supply circuit. The circuit comprises a state prediction controller module which is connected with a load circuit and is configured to obtain a system environment parameter signal and generate a state flag signal based on the system environment parameter signal, the system environment parameter signal is used for indicating a performance demand state of the load circuit and a current safe operation boundary condition of the circuit, and the state flag signal is used for generating a state flag signal based on the state flag signal. The state marking signal is used for indicating the predicted target working state of the load circuit to be switched; and the voltage regulation module is connected with the state prediction controller module and is configured to respond to the state flag signal and regulate the power supply current or voltage flowing to the load circuit before the load circuit is switched to the target working state. The method and the device are suitable for dynamic power consumption management scenes.

Description

Technical Field

[0001] This application relates to the field of electronic circuit technology, and in particular to a power supply circuit, power supply method, system-on-a-chip, device and storage medium. Background Technology

[0002] As semiconductor processes advance to 5-nanometer and more advanced nodes, the performance of central processing units (CPUs) and physical layer interfaces (PHYs) continues to improve. However, power consumption and heat dissipation have become core bottlenecks restricting their development. To achieve energy saving, modern CPUs employ a series of power state (C-state) controls, while PHYs have an idle mechanism that reduces power consumption by shutting down some circuits during idle periods.

[0003] Current dynamic power management technologies primarily rely on passive response regulation based on output voltage feedback. This means that the power supply unit (such as a low-dropout linear regulator, LDO) only begins voltage adjustment to restore stability after detecting output voltage fluctuations caused by load changes. However, this approach suffers from response lag. There is a nanosecond-level delay between the sudden change in load current, the detection of a voltage drop, and the completion of regulation. In advanced manufacturing processes, this delay can easily lead to timing errors or functional abnormalities in the CPU or PHY due to momentary power shortages. Summary of the Invention

[0004] In view of this, embodiments of this application provide a power supply circuit, power supply method, system-on-a-chip, device, and storage medium, which can improve the reliability and stability of the power supply circuit operation.

[0005] In a first aspect, embodiments of this application provide a power supply circuit, including: a state prediction controller module connected to a load circuit, configured to acquire system environmental parameter signals and generate a state flag signal based on the system environmental parameter signals, wherein the system environmental parameter signals are used to indicate the performance requirement state of the load circuit and the current safe operating boundary conditions of the circuit, and the state flag signal is used to indicate the predicted target operating state that the load circuit is about to switch to; and a voltage regulation module connected to the state prediction controller module, configured to, in response to the state flag signal, regulate the power supply current or voltage flowing to the load circuit before the load circuit switches to the target operating state.

[0006] According to a specific implementation of an embodiment of this application, the state prediction controller module is specifically configured to: acquire a current signal, a temperature signal, and a working state indication signal of the load circuit, wherein the system environmental parameter signal includes the current signal, the temperature signal, and the working state indication signal of the load circuit; when the working state indication signal is detected to be flipped, determine whether the circuit is under safe operating boundary conditions based on the current signal and the temperature signal; if it is determined that the circuit is under safe operating boundary conditions, generate a state flag signal to instruct the voltage regulation module to adjust the supply current or voltage flowing to the load circuit; if it is determined that the circuit is not under safe operating boundary conditions, wait for the current signal and the temperature signal to reach the safe operating boundary conditions.

[0007] According to a specific implementation of an embodiment of this application, the working state indication signal flips to indicate switching between different power states of the load circuit, or to indicate switching between data transmission state and idle state of the load circuit.

[0008] According to a specific implementation of an embodiment of this application, after the voltage regulation module completes the regulation of the supply current or voltage flowing to the load circuit, it returns a completion flag signal to the state prediction controller module. After the state prediction controller module receives the completion flag signal, it is further configured to: determine whether the load circuit has the conditions to switch to the target operating state based on the current signal and temperature signal; if it is determined that the load circuit has the conditions to switch to the target operating state, it generates a state completion signal and outputs it to the load circuit. The state completion signal is used to instruct the load circuit to start performing the functional operation corresponding to the target operating state.

[0009] According to a specific implementation of an embodiment of this application, the voltage regulation module includes an analog regulation loop and a digital regulation loop. The voltage regulation module is specifically configured as follows: in response to the status flag signal, when the status flag signal indicates a boost voltage, the analog regulation loop is controlled to drive the output voltage to rise rapidly to a target threshold voltage, and the digital regulation loop is controlled to work together to perform fine adjustment; when the status flag signal indicates a buck voltage, the analog regulation loop is controlled to rapidly reduce the reference voltage, and the digital regulation loop is controlled to slowly turn off the power switch array, so that the output voltage drops smoothly to the target threshold voltage.

[0010] According to a specific implementation of an embodiment of this application, the digital regulation loop includes: an analog-to-digital converter configured to convert the output voltage into a current voltage digital code; and a digital controller configured to compare the current voltage digital code with a target voltage digital code representing a target voltage value, generate an error signal, and perform calculations on the error signal to generate a digital control signal for controlling the power switch array.

[0011] Secondly, embodiments of this application provide a power supply method, which acquires system environmental parameter signals and generates a status flag signal based on the system environmental parameter signals. The system environmental parameter signals are used to indicate the performance requirement status of the load circuit and the current safe operating boundary conditions of the circuit. The status flag signal is used to indicate the predicted target operating state that the load circuit is about to switch to. In response to the status flag signal, the power supply current or voltage flowing to the load circuit is adjusted before the load circuit switches to the target operating state.

[0012] According to a specific implementation of an embodiment of this application, the step of acquiring system environmental parameter signals and generating a status flag signal based on the system environmental parameter signals includes: acquiring a current signal, a temperature signal, and a working status indication signal of the load circuit, wherein the system environmental parameter signals include the current signal, the temperature signal, and the working status indication signal of the load circuit; when the working status indication signal is detected to be flipped, determining whether the circuit is under safe operating boundary conditions based on the current signal and the temperature signal; if it is determined that the circuit is under safe operating boundary conditions, generating a status flag signal to indicate the adjustment of the supply current or voltage flowing to the load circuit; if it is determined that the circuit is not under safe operating boundary conditions, waiting for the current signal and the temperature signal to reach the safe operating boundary conditions.

[0013] According to a specific implementation of an embodiment of this application, the working state indication signal flips to indicate switching between different power states of the load circuit, or to indicate switching between data transmission state and idle state of the load circuit.

[0014] According to a specific implementation of this application, after adjusting the supply current or voltage flowing to the load circuit, a completion flag signal is returned. Based on the completion flag signal, the method includes: determining whether the load circuit has the conditions to switch to the target operating state based on the current current signal and temperature signal; if it is determined that the load circuit has the conditions to switch to the target operating state, generating a state completion signal and outputting it to the load circuit, wherein the state completion signal is used to instruct the load circuit to start performing the functional operation corresponding to the target operating state.

[0015] According to a specific implementation of an embodiment of this application, the step of adjusting the supply current or voltage to the load circuit in response to the status flag signal before the load circuit switches to the target operating state includes: in response to the status flag signal, when the status flag signal indicates a boost voltage, controlling the analog regulation loop to drive the output voltage to rise rapidly to the target threshold voltage, and controlling the digital regulation loop to work together for fine adjustment; when the status flag signal indicates a buck voltage, controlling the analog regulation loop to rapidly reduce the reference voltage, and controlling the digital regulation loop to slowly turn off the power switch array so that the output voltage drops smoothly to the target threshold voltage.

[0016] According to a specific implementation of an embodiment of this application, the digital regulation loop regulation process includes: converting the output voltage into a current voltage digital code; comparing the current voltage digital code with a target voltage digital code representing a target voltage value to generate an error signal; and performing calculations on the error signal to generate a digital control signal for controlling the power switch array.

[0017] Thirdly, embodiments of this application provide a system-on-a-chip (SoC), comprising: a current sampling unit configured to acquire current signals flowing to a load circuit; a temperature sensor unit configured to detect the temperature of a power supply circuit or the load circuit and generate a temperature signal; and a power supply circuit coupled to the current sampling unit and the temperature sensor unit, wherein the power supply circuit includes: a state prediction controller module connected to the load circuit, configured to acquire system environmental parameter signals and generate a state flag signal based on the system environmental parameter signals, wherein the system environmental parameter signals include the current signal, the temperature signal, and a working state indication signal of the load circuit; the system environmental parameter signals are used to indicate the performance requirement state of the load circuit and the current safe operating boundary conditions of the circuit, and the state flag signal is used to indicate the predicted target working state that the load circuit is about to switch to; a voltage regulation module connected to the state prediction controller module, configured to adjust the power supply current or voltage flowing to the load circuit in response to the state flag signal before the load circuit switches to the target working state; and a power switch array connected to the digital regulation loop of the voltage regulation module, configured to turn on or off based on the digital control signal to regulate the output voltage of the power supply circuit.

[0018] Fourthly, embodiments of this application provide an electronic device, which includes: a housing, a processor, a memory, a circuit board, and a power supply circuit, wherein the circuit board is disposed inside the space enclosed by the housing, and the processor and the memory are disposed on the circuit board; the power supply circuit is used to supply power to various circuits or devices of the above-mentioned electronic device; the memory is used to store executable program code; the processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, for executing the power supply method provided in any embodiment of this application.

[0019] Fifthly, embodiments of this application provide a computer-readable storage medium storing one or more computer programs, which, when executed by one or more processors, implement any of the power supply methods described in the second aspect.

[0020] This application provides a power supply circuit, power supply method, on-chip system, device, and storage medium. A state prediction controller module is connected to a load circuit and configured to acquire system environment parameter signals and generate a state flag signal based on these signals. The system environment parameter signals indicate the performance requirements of the load circuit and the current safe operating boundary conditions of the circuit. The state flag signal indicates the predicted target operating state that the load circuit is about to switch to. A voltage regulation module is connected to the state prediction controller module and configured to adjust the supply current or voltage to the load circuit in response to the state flag signal before the load circuit switches to the target operating state. In this way, the state prediction controller module issues a state flag signal in advance, indicating the predicted target operating state that the load circuit is about to switch to, before the load circuit's operating state changes. This provides a time window for the voltage regulation module to stabilize or reduce the voltage, avoiding clock jitter, timing errors, and data transmission bit errors caused by voltage recovery delays, greatly improving the stability and reliability of the circuit under dynamic loads. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the 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.

[0022] Figure 1 This is a schematic diagram of the power supply circuit provided in an embodiment of this application; Figure 2 This is a schematic diagram of the analog regulation loop in the voltage regulation module architecture provided in the embodiments of this application; Figure 3 This is a schematic diagram of the digital regulation loop in the voltage regulation module architecture provided in the embodiments of this application; Figure 4 This is a schematic diagram illustrating the voltage change during the operation of the voltage regulation module provided in this application embodiment; Figure 5 This is a schematic diagram illustrating key signal changes between power supply circuit modules provided in an embodiment of this application. Figure 6 This is a schematic diagram of the power supply method provided in the embodiments of this application; Figure 7 This is a schematic diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0023] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0024] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0025] In a first aspect, embodiments of this application provide a power supply circuit that can improve the reliability and stability of the power supply circuit operation.

[0026] like Figure 1 As shown, an embodiment of this application provides a power supply circuit, including: a state prediction controller module 1, connected to a load circuit 2, configured to acquire system environmental parameter signals and generate a state flag signal based on the system environmental parameter signals, wherein the system environmental parameter signals are used to indicate the performance requirement state of the load circuit 2 and the current safe operating boundary conditions of the circuit, and the state flag signal is used to indicate the predicted target operating state that the load circuit 2 is about to switch to; and a voltage regulation module 3, connected to the state prediction controller module 1, configured to, in response to the state flag signal, regulate the power supply current or voltage flowing to the load circuit 1 before the load circuit 2 switches to the target operating state.

[0027] The power supply circuit of this application mainly consists of two modules: a state prediction controller module 1 and a voltage regulation module 3. In some examples, the state prediction controller module 1 intelligently predicts and directs the voltage regulation module 3 to adjust the power supply in advance, thereby resolving the performance and power consumption contradiction faced by the load circuit 2 during rapid state switching.

[0028] As the intelligent decision-making center of the system, the state predictive controller module 1 can, in some examples, be a dedicated state machine controller implemented by hardware logic circuits. It directly connects to the load circuit 2 via a high-speed hardware interface to acquire composite parameter signals characterizing the system's operating state in real time; these are system environmental parameter signals. The system environmental parameter signals include feedforward performance requirement signals derived from the load circuit 2's own operational planning, used to predict the load circuit 2's next operational intention; and feedback-type safety boundary signals reflecting the system's real-time operating status, used to assess whether the current system supports state transitions. Internally, the state predictive controller module 1 employs intelligent decision logic, generating state flag signals by comprehensively processing performance requirements and safety boundary conditions, ensuring that power regulation commands are both forward-looking and safe.

[0029] The voltage regulation module 3 is a high-performance execution unit for the power supply circuit. In some examples, the voltage regulation module 3 adopts a hybrid low-dropout linear regulator (Hybrid LDO) architecture. It uses the status flag signal from the state prediction controller module 1 as the core control input, transforming the traditional passive response based on output voltage error into active execution triggered by the prediction signal. Before the load circuit 2 actually completes the working state switch, for example, after the CPU issues a performance state switch request but before it fully enters the high-power state, the voltage regulation module 3 has already begun to increase the output voltage or current drive capability. According to the status flag signal instruction, the voltage regulation module 3 dynamically adjusts the output. In some examples, it can quickly increase the voltage and provide a large current drive when performance improvement is needed; and smoothly reduce the voltage and current output to the target energy efficiency level when energy saving is needed.

[0030] By employing a prediction-based proactive adjustment mechanism, performance degradation or system instability caused by voltage recovery delays are avoided.

[0031] In summary, this application achieves intelligent power management through the coordinated operation of the state prediction controller module 1 and the voltage regulation module 3. The load circuit 2 first sends its expected next operating state plan to the state prediction controller 1. Simultaneously, the state prediction controller module 1 collects safety parameters reflecting the real-time status of the system for comprehensive analysis. After confirming that conditions permit, it issues a pre-adjustment command containing specific voltage and current requirements to the voltage regulation module 3. The voltage regulation module 3 adjusts its output according to the command before the actual power consumption state of the load circuit 2 changes. When the load circuit 2 officially enters the state transition, the power supply environment is already prepared, thus achieving the dual goals of a smooth state transition with zero performance loss and optimal energy efficiency.

[0032] This application provides a power supply circuit that, through a state prediction controller module connected to a load circuit, is configured to acquire system environmental parameter signals and generate a state flag signal based on these signals. The system environmental parameter signals indicate the performance requirements of the load circuit and the current safe operating boundary conditions of the circuit. The state flag signal indicates the predicted target operating state that the load circuit is about to switch to. A voltage regulation module, connected to the state prediction controller module, is configured to, in response to the state flag signal, regulate the supply current or voltage to the load circuit before the load circuit switches to the target operating state. In this way, the state prediction controller module issues a state flag signal in advance, indicating the predicted target operating state that the load circuit is about to switch to, before the load circuit's operating state changes. This provides a time window for the voltage regulation module to stabilize or reduce the voltage, avoiding clock jitter, timing errors, and data transmission bit errors caused by voltage recovery delays, and greatly improving the stability and reliability of the circuit under dynamic loads.

[0033] In some embodiments, the state prediction controller module is specifically configured to: acquire a current signal, a temperature signal, and an operating state indication signal of the load circuit, wherein the system environmental parameter signal includes the current signal, the temperature signal, and the operating state indication signal of the load circuit; when the operating state indication signal is detected to be flipped, determine whether the circuit is under safe operating boundary conditions based on the current signal and the temperature signal; if it is determined that the circuit is under safe operating boundary conditions, generate a state flag signal to instruct the voltage regulation module to adjust the supply current or voltage flowing to the load circuit; if it is determined that the circuit is not under safe operating boundary conditions, wait for the current signal and the temperature signal to reach the safe operating boundary conditions.

[0034] In this embodiment, the state prediction controller module performs intelligent safety decision-making strategy through multi-dimensional signal acquisition and fusion, and finally adaptively outputs control.

[0035] During multi-dimensional signal acquisition and fusion, three key signals are acquired in real time through a dedicated hardware interface: a load working state indicator signal (represented by underlined names in the power supply circuit and circuit diagrams, such as working_state, while in the main text of this specification, they are expressed in natural language without underlined names. Those skilled in the art should understand that both refer to the same technical feature, and the naming difference stems only from code writing conventions and documentation habits), a real-time current signal (VDD Current), and a real-time temperature signal (Temp). In some examples, the load working state indicator signal directly monitors the hardware-level status indicators of load circuits such as the CPU or PHY, capturing instantaneous changes in working state transitions; the real-time current signal continuously monitors changes in the power supply current of the load circuit through a high-precision current sensor; and the real-time temperature signal monitors the chip junction temperature through an integrated temperature sensor.

[0036] When a change in the operating status indicator signal is detected, such as a jump from high to low, it indicates that the load is about to enter a low-power state. The state prediction controller module immediately initiates a multi-condition safety assessment, establishes a dynamic safety threshold model, and presets upper and lower limit boundary values ​​for current and temperature based on the load type and process characteristics, such as the maximum allowable transient current Imax and the temperature protection threshold Tjuncmax. Then, the collected real-time current value is compared with the current safety threshold, and the real-time temperature value is compared with the temperature safety threshold. A dual judgment is performed using AND logic, requiring that the current value not exceed the maximum safe current and the temperature value not exceed the maximum safe temperature to pass the safety test.

[0037] When safety conditions are met, a status flag signal with a specific encoding format is immediately generated. In some examples, the status flag signal includes key parameters such as voltage regulation direction (boost or buck), target voltage value, and expected current value, and is transmitted to the voltage regulation module via a dedicated bus. When safety conditions are not met, a waiting sequence is initiated, continuously monitoring changes in current and temperature parameters until both safety boundary conditions are met simultaneously before triggering the generation of the status flag signal. In some examples, the power supply circuit can also be configured with a timeout protection mechanism, setting a maximum waiting time threshold. If the conditions are not met within the timeout period, an abnormal handling process is triggered, sending an alarm signal to the system. Similarly, the power supply circuit can also be configured to ensure that the status predictive controller module maintains a nanosecond-level response speed throughout signal processing, ensuring that all decisions and command issuance are completed within a microsecond-level time window before the actual load state switch.

[0038] The sophisticated control architecture ensures timely power regulation while multiple safety checks prevent system stability issues that may arise from voltage regulation under extreme conditions, achieving a balance between performance and reliability.

[0039] In some embodiments, the switching of the operating state indication signal is used to indicate switching between different power states of the load circuit, or to indicate switching between a data transmission state and an idle state of the load circuit.

[0040] The level flip event of the operating status indicator signal is a key external characterization signal for the transition of the operating state of the load circuit. The change of the operating status indicator signal is used to clearly indicate the switching of the following two typical operating scenarios: one is the switching between power states inside the load circuit, and the other is the switching between data transmission and idle state of the load circuit.

[0041] When a load circuit needs to dynamically switch between different power states (C-states), the operating status indicator signal will toggle. The load circuit can be a central processing unit (CPU). In some examples, when the power state switches from a high-performance active state (C0) to a deep sleep state (C6), the operating status indicator signal can toggle from high to low; conversely, when the power state wakes up from sleep to active, the signal toggle from low to high, reflecting the load circuit's intention to reconfigure power consumption and performance requirements.

[0042] When switching between the data transmission state and the idle state of the load circuit, the operating state indicator signal is indicated by level toggling. The load circuit can be the physical layer interface (PHY). In some examples, the operating state indicator signal remains high during the data transmission state of the load circuit. When data transmission ends and the circuit enters a low-power idle state, the operating state indicator signal toggles low. When a new data transmission task is detected, the operating state indicator signal toggles high again, indicating that the circuit is about to return to a high-power operating mode.

[0043] The flipping behavior of the operating status indicator signal is a feedforward control mechanism that provides a key basis for predictive regulation of the power management system. This enables the system to prepare for adjustments to voltage and current supply before the actual power consumption state of the load circuit changes, thereby achieving efficient, fast and safe dynamic power management.

[0044] In some embodiments, after the voltage regulation module completes the regulation of the supply current or voltage flowing to the load circuit, it returns a completion flag signal to the state prediction controller module. After the state prediction controller module receives the completion flag signal, it is further configured to: determine whether the load circuit has the conditions to switch to the target operating state based on the current current signal and temperature signal; if it is determined that the load circuit has the conditions to switch to the target operating state, generate a state completion signal and output it to the load circuit. The state completion signal is used to instruct the load circuit to start performing the functional operation corresponding to the target operating state.

[0045] After regulating the supply current or voltage to the load circuit, the voltage regulation module returns a completion flag signal to the state prediction controller module. Upon receiving the completion flag signal, the state prediction controller module immediately initiates a secondary safety verification process. In some cases, based on real-time acquired current and temperature signals, the state prediction controller module reassesses the current operating environment of the load circuit to determine whether all safety conditions for switching to the target operating state are met. If it is confirmed that both the current and temperature values ​​are within the preset safe operating boundaries, the state prediction controller module generates a state completion signal and sends it to the load circuit. This state completion signal serves as the final execution permission instruction, indicating that the load circuit can safely begin executing all functional operations corresponding to the target operating state.

[0046] The dual confirmation mechanism ensures that the load circuit will only switch states when the power supply environment and operating parameters fully meet the requirements, thus avoiding functional errors or hardware damage caused by system state asynchrony or environmental abnormalities.

[0047] In some embodiments, the voltage regulation module includes an analog regulation loop and a digital regulation loop. Specifically, the voltage regulation module is configured to: respond to the status flag signal, when the status flag signal indicates a boost voltage, control the analog regulation loop to drive the output voltage to rise rapidly to a target threshold voltage, and control the digital regulation loop to work together for fine-tuning; when the status flag signal indicates a buck voltage, control the analog regulation loop to rapidly reduce the reference voltage, and control the digital regulation loop to slowly turn off the power switch array, so that the output voltage smoothly drops to the target threshold voltage.

[0048] Figure 2 This is a schematic diagram of the analog regulation loop in the voltage regulation module architecture. Figure 3 This is a schematic diagram of the digital regulation loop in the voltage regulation module architecture. (See attached diagram) Figure 2 and Figure 3The complete architecture of the voltage regulation module includes an analog regulation loop and a digital regulation loop. The analog regulation loop typically includes an error amplifier, an analog switch, and a feedback resistor network Rb1, Rb2. The two loops share the same output voltage VDD and load capacitor CL, and receive the same target command (i.e., the status flag signal) from the state predictive controller. The target command is ultimately manifested as a unified target voltage, i.e., Vref or its digital equivalent TargetVref[11:0].

[0049] Specifically, when the status flag signal indicates that a boost is needed, the analog loop responds quickly, such as... Figure 2 As shown, the error amplifier in the analog loop immediately detects that the output voltage VDD is much lower than the new target reference voltage Vref, and fully drives the analog switch, causing the conduction level of the analog switch to increase sharply. This draws a huge current from the input voltage Vin to rapidly charge the load capacitor CL, causing the VDD voltage to rise rapidly. This is the first stage with the fastest response speed. The relationship between the output voltage VDD and the reference voltage is VDD = Vref. (Rb1+Rb2) / Rb2. Then, the digital loop takes over and provides a large, stable current while performing fine-tuning to eliminate ripple, ultimately stabilizing VDD at the precise target threshold voltage Vref high. Figure 4 This diagram illustrates the voltage changes during the operation of the voltage regulation module. When the status indicator signal indicates a voltage boost is needed, the voltage changes throughout the process are as follows: Figure 4 As shown on the left.

[0050] When the status indicator signal indicates that a voltage reduction is needed, the error amplifier in the analog loop quickly adjusts its internal reference level to provide a fast initial response and suppress voltage overshoot. Simultaneously, the digital loop slowly shuts off the power switch array, allowing the output voltage to smoothly decrease to the target threshold voltage. In some cases, the analog loop provides a fast initial response, while the digital loop slowly and sequentially shuts off the digital switches, precisely controlling the discharge current. This allows the output voltage VDD to decrease smoothly and linearly, avoiding potential voltage overshoot or oscillations caused by a sudden current decrease. The output voltage eventually stabilizes at the target threshold voltage Vreflow. The voltage change throughout the process, as indicated by the status indicator signal indicating a voltage reduction need, is as follows: Figure 4 As shown on the right.

[0051] In some examples, the digital regulation loop includes: an analog-to-digital converter configured to convert an output voltage into a current voltage digital code; and a digital controller configured to compare the current voltage digital code with a target voltage digital code representing a target voltage value, generate an error signal, and perform calculations on the error signal to generate a digital control signal for controlling a power switch array.

[0052] Figure 3 The complete signal flow and working principle of the digital control loop are clearly shown. See [link / reference]. Figure 3 The digital control loop includes an analog-to-digital converter (ADC), a digital controller, and a power switch array. In some examples, the input analog voltage VDD is fed to the ADC, and the output is a 12-bit wide digital representation of the current voltage, the digital code CurVol[11:0]. This is the first step in achieving closed-loop feedback, converting changes in the analog world into signals that can be processed by the digital world. The digital controller includes a comparator and a proportional-integral-derivative (PID) controller module. The PID controller receives the current voltage digital code CurVol[11:0] and the target voltage digital code TargetVref[11:0], subtracts them, and generates an error signal Err[11:0]. The PID controller module receives the error signal Err[11:0], performs proportional (P), integral (I), and derivative (D) operations, quickly reduces the error, and stabilizes the system. After the operation, the final control output is generated. The power switch array is... Figure 3 In some examples, the output of the digital switching module of the PID controller is a 256-bit wide digital control signal G[255:0]. Each bit of the signal controls one power switching unit. The value of G[255:0] directly determines how many switching units are turned on, thereby precisely controlling the total current flowing to the load and finally adjusting the output voltage VDD to the target value.

[0053] For example, when an external system or state prediction controller issues a target voltage command TargetVref[11:0], the analog-to-digital converter (ADC) immediately samples the output voltage VDD in real time and quantizes it into the current voltage digital code CurVol[11:0]. The digital controller compares the current voltage code with the target voltage code and generates an error signal Err[11:0]. The error signal is processed by the PID controller through proportional-integral-derivative operations to form the optimal control strategy and outputs a 256-bit wide digital control word G[255:0] to the power switch array. By dynamically adjusting the number of on switches, the output current is changed, and finally the output voltage VDD is driven to converge stably to the target voltage value, thus completing the fully digital precision voltage regulation control.

[0054] Figure 5 This schematic diagram illustrates the key signal changes between power supply circuit modules provided in this application embodiment, showing the key signal interaction flow between the state prediction controller module, load circuit, and voltage regulation module in the intelligent power supply circuit. In some examples, such as... Figure 5 The load circuit sends a state switching request via a change in the Working state signal level, such as a transition from high to low. The state prediction controller module then acquires the current signal VDDCurrent and the temperature signal Temp, which characterize the real-time state of the system. After a safety decision strategy, it issues a predictive command, State Flag. In some cases, a rising State Flag signal level indicates a need for voltage boosting. The voltage regulation module responds to the State Flag signal by adjusting its output VDD. Upon completion, it notifies the state prediction controller module via Finish Flag, for example, by notifying the controller via the rising edge of the Finish Flag pulse. Finally, the state prediction controller module verifies the system parameters and outputs a completion flag signal, Finish state. The Finish state signal can be set to active high, authorizing the load circuit to formally execute the state switching in voltage level form. The entire process achieves nanosecond-level precise coordination through the timing changes of multiple signal levels, combining proactive regulation with safety assurance.

[0055] Secondly, embodiments of this application provide a power supply method that can improve the reliability and stability of power supply circuit operation.

[0056] like Figure 6 As shown, embodiments of this application also provide a power supply method, including: S21. Obtain system environment parameter signals, and generate status flag signals based on the system environment parameter signals, wherein the system environment parameter signals are used to indicate the performance requirement status of the load circuit and the current safe operation boundary conditions of the circuit, and the status flag signals are used to indicate the target working state that the predicted load circuit is about to switch to. By acquiring system environmental parameter signals in real time and generating corresponding status flag signals based on these signals, the system environmental parameter signals indicate both the performance requirements of the load circuit and the current safe operating boundary conditions of the circuit. Then, the multi-dimensional information from the system environmental parameter signals is integrated to make decisions and generate status flag signals. These status flag signals indicate the predicted target operating state that the load circuit is about to switch to; for example, a status flag signal may indicate boost voltage to prepare for a high-performance state or buck voltage to enter a low-power state, thereby achieving proactive and precise control of power supply regulation.

[0057] S22. In response to the status flag signal, adjust the supply current or voltage to the load circuit before the load circuit switches to the target operating state.

[0058] Based on the status flag signal, the adjustment process can be initiated before the load circuit's power consumption changes substantially, without waiting for the load circuit to actually complete the state switch. By quickly responding to the instructions carried by the status flag signal, such as boosting or bucking to the target value, the power transistor's on-state or output drive capability is actively adjusted, so that the supply current or output voltage approaches the theoretical value required for the target operating state in advance.

[0059] Predictive feedforward control avoids voltage drops or overshoot caused by response delays in traditional feedback loops, ensuring that the power supply environment is fully ready when the load circuit officially enters a high-performance or low-power state, thereby achieving smooth switching without transient offset and maximizing energy efficiency.

[0060] This application provides a power supply method that acquires system environmental parameter signals and generates a status flag signal based on these signals. The system environmental parameter signals indicate the performance requirements of the load circuit and its current safe operating boundary conditions. The status flag signal indicates the predicted target operating state that the load circuit is about to switch to. In response to the status flag signal, the power supply current or voltage to the load circuit is adjusted before the load circuit switches to the target operating state. This method issues a status flag signal in advance, indicating the predicted target operating state before the load circuit changes, providing a time window for voltage stabilization or reduction. This avoids clock jitter, timing errors, and data transmission bit errors caused by voltage recovery delays, greatly improving the stability and reliability of the circuit under dynamic loads.

[0061] In some embodiments, acquiring system environmental parameter signals and generating status flag signals based on the system environmental parameter signals includes: acquiring current signals, temperature signals, and operating status indication signals of the load circuit, wherein the system environmental parameter signals include the current signals, temperature signals, and operating status indication signals of the load circuit; when the operating status indication signal is detected to be flipped, determining whether the circuit is under safe operating boundary conditions based on the current signals and temperature signals; if it is determined that the circuit is under safe operating boundary conditions, generating a status flag signal to indicate adjustment of the supply current or voltage flowing to the load circuit; if it is determined that the circuit is not under safe operating boundary conditions, waiting for the current signals and temperature signals to reach safe operating boundary conditions.

[0062] This application's solution involves multi-dimensional signal acquisition and fusion, execution of intelligent safety decision-making strategies, and finally adaptive output control.

[0063] During multi-dimensional signal acquisition and fusion, three key signals are acquired in real time through a dedicated hardware interface: working state indicator signal, real-time current signal (VDD Current), and real-time temperature signal (Temp). In some examples, the working state indicator signal directly monitors the hardware-level status indicators of load circuits such as CPU or PHY, capturing instantaneous changes in working state transitions; the real-time current signal continuously monitors changes in the supply current of the load circuit through a high-precision current sensor; and the real-time temperature signal monitors the chip junction temperature through an integrated temperature sensor.

[0064] When a change in the operating status indicator signal is detected, such as a jump from high to low, it indicates that the load is about to enter a low-power state. Immediately, a multi-condition safety assessment is initiated, a dynamic safety threshold model is established, and upper and lower limit boundary values ​​for current and temperature are preset according to the load type and process characteristics. For example, the maximum allowable transient current Imax and the temperature protection threshold Tjuncmax are preset. Then, the collected real-time current value is compared with the current safety threshold, and the real-time temperature value is compared with the temperature safety threshold. A dual judgment is performed using AND logic. The safety test is considered passed only if the current value is not greater than the maximum safe current and the temperature value is not greater than the maximum safe temperature.

[0065] When safety conditions are met, a status flag signal with a specific encoding format is immediately generated. In some examples, the status flag signal includes key parameters such as voltage regulation direction (boost or buck), target voltage value, and expected current value. When safety conditions are not met, a waiting sequence is initiated, continuously monitoring changes in current and temperature parameters until both safety boundary conditions are met simultaneously before triggering the generation of the status flag signal. In some examples, the power supply circuit can also be configured with a timeout protection mechanism, setting a maximum waiting time threshold. If the conditions are not met within the timeout period, an abnormal handling process is triggered, sending an alarm signal to the system. Similarly, the power supply circuit can also be configured to maintain a nanosecond-level response speed throughout signal processing, ensuring that all decisions and command issuance are completed within a microsecond-level time window before the actual load state switch.

[0066] The sophisticated control architecture ensures timely power regulation while multiple safety checks prevent system stability issues that may arise from voltage regulation under extreme conditions, achieving a balance between performance and reliability.

[0067] In some embodiments, the switching of the operating state indication signal is used to indicate switching between different power states of the load circuit, or to indicate switching between a data transmission state and an idle state of the load circuit.

[0068] The level flip event of the operating status indicator signal is a key external characterization signal for the transition of the operating state of the load circuit. The change of the operating status indicator signal is used to clearly indicate the switching of the following two typical operating scenarios: one is the switching between power states inside the load circuit, and the other is the switching between data transmission and idle state of the load circuit.

[0069] When a load circuit needs to dynamically switch between different power states, the operating status indicator signal will undergo a level transition. The load circuit can be a central processing unit (CPU). In some examples, when the power state switches from a high-performance active state (C0) to a deep sleep state (C6), the operating status indicator signal can transition from a high level to a low level; conversely, when the power state wakes up from a sleep state to an active state, the signal transitions from a low level to a high level, reflecting the load circuit's intention to reconfigure power consumption and performance requirements.

[0070] When switching between the data transmission state and the idle state of the load circuit, the operating status indicator signal is indicated by level toggling. The load circuit can be the physical layer interface (PHY). In some examples, the operating status indicator signal remains high during the data transmission state of the load circuit. When data transmission ends and the circuit enters a low-power idle state, the operating status indicator signal toggles low. When a new data transmission task is detected, the operating status indicator signal toggles high again, indicating that the circuit is about to return to a high-power operating mode.

[0071] The flipping behavior of the operating status indicator signal is a feedforward control mechanism that provides a key basis for predictive regulation of the power management system. This enables the system to prepare for adjustments to voltage and current supply before the actual power consumption state of the load circuit changes, thereby achieving efficient, fast and safe dynamic power management.

[0072] In some embodiments, after adjusting the supply current or voltage flowing to the load circuit, a completion flag signal is returned. Based on the completion flag signal, the method includes: determining whether the load circuit has the conditions to switch to the target operating state according to the current current signal and temperature signal; if it is determined that the load circuit has the conditions to switch to the target operating state, generating a state completion signal and outputting it to the load circuit, wherein the state completion signal is used to instruct the load circuit to start performing the functional operation corresponding to the target operating state.

[0073] After regulating the supply current or voltage of the load circuit, a completion flag signal is returned. Based on this signal, a secondary safety verification process is immediately initiated. In some cases, the current operating environment of the load circuit is reassessed based on real-time acquired current and temperature signals to determine whether all safety conditions for switching to the target operating state are met. If the current and temperature values ​​are confirmed to be within the preset safe operating boundaries, a status completion signal is generated and sent to the load circuit. This signal serves as the final execution permission instruction, indicating that the load circuit can safely begin executing all functional operations corresponding to the target operating state.

[0074] The dual confirmation mechanism ensures that the load circuit will only switch states when the power supply environment and operating parameters fully meet the requirements, fundamentally avoiding functional errors or hardware damage caused by system state asynchrony or environmental abnormalities.

[0075] In some embodiments, adjusting the supply current or voltage to the load circuit in response to the status flag signal before the load circuit switches to the target operating state includes: in response to the status flag signal, when the status flag signal indicates a boost voltage, controlling the analog regulation loop to drive the output voltage to rise rapidly to a target threshold voltage, and controlling the digital regulation loop to work together for fine adjustment; when the status flag signal indicates a buck voltage, controlling the analog regulation loop to rapidly reduce the reference voltage, and controlling the digital regulation loop to slowly turn off the power switch array so that the output voltage drops smoothly to the target threshold voltage.

[0076] See Figure 2 and Figure 3 The complete architecture of a hybrid analog-digital low-dropout linear regulator includes an analog regulation loop and a digital regulation loop. The analog regulation loop typically includes an error amplifier, an analog switch, and a feedback resistor network Rb1, Rb2. The two loops share the same output voltage VDD and load capacitor CL, and receive the same target command (i.e., a status flag signal) from the state predictive controller. The target command is ultimately manifested as a unified target voltage, i.e., Vref or its digital equivalent TargetVref[11:0].

[0077] Specifically, when the status flag signal indicates that a boost is needed, the analog loop responds quickly, such as... Figure 2 As shown, the error amplifier in the analog loop immediately detects that the output voltage VDD is much lower than the new target reference voltage Vref, and drives the analog switch at full power, causing the conduction level of the analog switch to increase sharply. This draws a huge current from the input voltage Vin to quickly charge the load capacitor CL, causing the VDD voltage to rise rapidly. This is the first stage with the fastest response speed. The relationship between the output voltage VDD and the reference voltage is VDD = Vref. (Rb1+Rb2) / Rb2. Then, the digital loop takes over and provides a large, stable current while performing fine-tuning to eliminate ripple, eventually stabilizing VDD at the precise target threshold voltage Vref high. The voltage changes throughout the process, as indicated by the status flag signal, are as follows: Figure 4 As shown on the left.

[0078] When the status indicator signal indicates that a voltage reduction is needed, the error amplifier in the analog loop quickly adjusts its internal reference level to provide a fast initial response and suppress voltage overshoot. Simultaneously, the digital loop slowly turns off the power switch array, allowing the output voltage to smoothly decrease to the target threshold voltage. In some cases, the analog loop provides a fast initial response, while the digital loop turns off the digital switches one by one, slowly and precisely controlling the discharge current. This allows the output voltage VDD to decrease smoothly and linearly, avoiding potential voltage overshoot or oscillations caused by a sudden current decrease. The output voltage eventually stabilizes at the target threshold voltage Vreflow. The voltage change throughout the process, as indicated by the status indicator signal indicating a voltage reduction need, is as follows: Figure 4 As shown on the right.

[0079] In some embodiments, the digital regulation loop regulation process includes: converting the output voltage into a current voltage digital code; comparing the current voltage digital code with a target voltage digital code representing a target voltage value to generate an error signal; and performing calculations on the error signal to generate a digital control signal for controlling the power switch array.

[0080] Figure 3 The complete signal flow and working principle of the digital control loop are clearly shown. See [link / reference]. Figure 3 The digital control loop includes an analog-to-digital converter (ADC), a digital controller, and a power switch array. In some examples, the input analog voltage VDD is fed to the ADC, and the output is a 12-bit wide digital representation of the current voltage, the digital code CurVol[11:0]. This is the first step in achieving closed-loop feedback, converting changes in the analog world into signals that can be processed in the digital world. The digital controller includes a comparator and a PID controller module. The digital controller receives the current voltage digital code CurVol[11:0] and the target voltage digital code TargetVref[11:0], subtracts them, and generates an error signal Err[11:0]. The PID controller module receives the error signal Err[11:0], performs proportional (P), integral (I), and derivative (D) operations to quickly reduce the error and stabilize the system. After the operations, the final control output is generated. The power switch array is... Figure 3In some examples, the output of the PID controller in the digital switching module is a 256-bit wide digital control signal G[255:0]. Each bit controls one power switching unit. The value of G[255:0] directly determines how many switching units are turned on, thereby precisely controlling the total current flowing to the load and ultimately adjusting the output voltage VDD to the target value.

[0081] For example, when an external system or state prediction controller issues a target voltage command TargetVref[11:0], the analog-to-digital converter (ADC) immediately samples the output voltage VDD in real time and quantizes it into the current voltage digital code CurVol[11:0]. The digital controller compares the current voltage code with the target voltage code and generates an error signal Err[11:0]. The error signal is processed by the PID controller through proportional-integral-derivative operations to form the optimal control strategy and outputs a 256-bit wide digital control word G[255:0] to the power switch array. By dynamically adjusting the number of on switches, the output current is changed, and finally the output voltage VDD is driven to converge stably to the target voltage value, thus completing the fully digital precision voltage regulation control.

[0082] Thirdly, embodiments of this application provide a system-on-a-chip that can improve the reliability and stability of power supply circuit operation.

[0083] The on-chip system includes: a current sampling unit configured to acquire current signals flowing to a load circuit; a temperature sensor unit configured to detect the temperature of the power supply circuit or the load circuit and generate a temperature signal; and a power supply circuit coupled to the current sampling unit and the temperature sensor unit. The power supply circuit includes: a state prediction controller module connected to the load circuit, configured to acquire system environmental parameter signals and generate a state flag signal based on the system environmental parameter signals. The system environmental parameter signals include the current signal, the temperature signal, and a working state indication signal of the load circuit. The system environmental parameter signals indicate the performance requirements of the load circuit and the current safe operating boundary conditions of the circuit. The state flag signal indicates the predicted target working state that the load circuit is about to switch to. A voltage regulation module connected to the state prediction controller module is configured to, in response to the state flag signal, regulate the supply current or voltage flowing to the load circuit before the load circuit switches to the target working state. A power switch array connected to the digital regulation loop of the voltage regulation module is configured to turn on or off based on the digital control signal to regulate the output voltage of the power supply circuit.

[0084] Fourthly, embodiments of this application also provide an electronic device that can improve the reliability and stability of power supply circuit operation.

[0085] like Figure 7 As shown, the electronic device provided in the embodiments of this application may include: a housing 51, a processor 52, a memory 53, a circuit board 54, and a power supply circuit 55, wherein the circuit board 54 is disposed inside the space enclosed by the housing 51, and the processor 52 and the memory 53 are disposed on the circuit board 54; the power supply circuit 55 is used to supply power to various circuits or devices of the above-mentioned electronic device; the memory 53 is used to store executable program code; the processor 52 runs a program corresponding to the executable program code by reading the executable program code stored in the memory 53, for executing the power supply method provided in any of the foregoing embodiments.

[0086] For details on the specific execution process of the above steps by the processor 52 and the steps further executed by the processor 52 by running executable program code, please refer to the description of the foregoing embodiments, which will not be repeated here.

[0087] Fifthly, embodiments of this application also provide a computer-readable storage medium storing one or more programs, which can be executed by one or more processors to implement any of the power supply methods provided in the foregoing embodiments, thus achieving the corresponding technical effects. This has been described in detail above and will not be repeated here.

[0088] The power supply circuit provided in this application can proactively and dynamically adjust the power supply voltage according to the target state of various load circuits and system parameters such as current and temperature through a load prediction-based power consumption control mechanism, thereby effectively reducing power consumption. The load circuits include, but are not limited to, the central processing unit (CPU), physical layer interface (PHY), graphics processing unit (GPU), phase-locked loop (PLL), and analog-to-digital converter (ADC). At the same time, it adopts high-efficiency architectures such as Hybrid LDO to replace the traditional inductor-based power supply scheme, which significantly improves the power supply density and overall energy efficiency, and has excellent load response speed and wide structural adaptability.

[0089] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0090] The various embodiments in this specification are described in a related 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.

[0091] In particular, the device embodiment is basically similar to the method embodiment, so the description is relatively simple. For relevant details, please refer to the description of the method embodiment.

[0092] For ease of description, the above apparatus is described by dividing it into various functional units / modules. Of course, in implementing this application, the functions of each unit / module can be implemented in one or more software and / or hardware.

[0093] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. The storage medium can be a magnetic disk, optical disk, read-only memory (ROM), or random access memory (RAM), etc.

[0094] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A power supply circuit, characterized in that, include: A state prediction controller module, connected to the load circuit, is configured to acquire system environmental parameter signals and generate a state flag signal based on the system environmental parameter signals. The system environmental parameter signals are used to indicate the performance requirement state of the load circuit and the current safe operating boundary conditions of the circuit. The state flag signal is used to indicate the target operating state that the predicted load circuit is about to switch to. A voltage regulation module, connected to the state prediction controller module, is configured to regulate the supply current or voltage to the load circuit in response to the state flag signal before the load circuit switches to the target operating state.

2. The power supply circuit according to claim 1, characterized in that, The state prediction controller module is specifically configured as follows: Acquire current signal, temperature signal and operating status indication signal of the load circuit, wherein the system environmental parameter signal includes the current signal, temperature signal and operating status indication signal of the load circuit; When the operating status indication signal is detected to flip, the circuit is determined to be under safe operating boundary conditions based on the current signal and temperature signal. If the circuit is determined to be under safe operating boundary conditions, a status flag signal is generated to instruct the voltage regulation module to adjust the supply current or voltage to the load circuit; if the circuit is determined not to be under safe operating boundary conditions, the system waits for the current signal and temperature signal to reach the safe operating boundary conditions.

3. The power supply circuit according to claim 2, characterized in that, The flipping of the operating status indication signal is used to indicate the switching between different power states of the load circuit, or to indicate the switching between the data transmission state and the idle state of the load circuit.

4. The power supply circuit according to claim 1, characterized in that, After the voltage regulation module completes the regulation of the supply current or voltage to the load circuit, it returns a completion flag signal to the state prediction controller module. Upon receiving the completion flag signal, the state prediction controller module is further configured to: Determine whether the load circuit meets the conditions for switching to the target operating state based on the current and temperature signals. If it is determined that the load circuit has the conditions to switch to the target operating state, a state completion signal is generated and output to the load circuit. The state completion signal is used to instruct the load circuit to start performing the functional operation corresponding to the target operating state.

5. The power supply circuit according to claim 1, characterized in that, The voltage regulation module includes an analog regulation loop and a digital regulation loop, and the voltage regulation module is specifically configured as follows: In response to the status flag signal, when the status flag signal indicates a boost, the analog regulation loop is controlled to drive the output voltage to rise rapidly to the target threshold voltage, and the digital regulation loop is controlled to work together to perform fine adjustment; When the status indicator signal indicates a voltage reduction, the analog regulation loop is controlled to rapidly reduce the reference voltage, and the digital regulation loop is controlled to slowly turn off the power switch array, so that the output voltage is smoothly reduced to the target threshold voltage.

6. The power supply circuit according to claim 5, characterized in that, The digital adjustment loop includes: An analog-to-digital converter configured to convert the output voltage into a digital code of the current voltage; A digital controller is configured to compare the current voltage digital code with a target voltage digital code representing a target voltage value, generate an error signal, and perform calculations on the error signal to generate a digital control signal for controlling a power switch array.

7. A power supply method, characterized in that, include: Acquire system environment parameter signals, and generate status flag signals based on the system environment parameter signals. The system environment parameter signals are used to indicate the performance requirement status of the load circuit and the current safe operation boundary conditions of the circuit. The status flag signals are used to indicate the target operating state that the predicted load circuit is about to switch to. In response to the status flag signal, the supply current or voltage to the load circuit is adjusted before the load circuit switches to the target operating state.

8. The power supply method according to claim 7, characterized in that, The step of acquiring system environment parameter signals and generating status flag signals based on the system environment parameter signals includes: Acquire current signal, temperature signal and operating status indication signal of the load circuit, wherein the system environmental parameter signal includes the current signal, temperature signal and operating status indication signal of the load circuit; When the operating status indication signal is detected to flip, the circuit is determined to be under safe operating boundary conditions based on the current signal and temperature signal. If the circuit is determined to be under safe operating boundary conditions, a status flag signal is generated to indicate the adjustment of the supply current or voltage to the load circuit; if the circuit is determined not to be under safe operating boundary conditions, the system waits for the current signal and temperature signal to reach the safe operating boundary conditions.

9. The power supply method according to claim 8, characterized in that, The flipping of the operating status indication signal is used to indicate the switching between different power states of the load circuit, or to indicate the switching between the data transmission state and the idle state of the load circuit.

10. The power supply method according to claim 7, characterized in that, After adjusting the supply current or voltage to the load circuit, a completion flag signal is returned. Based on the completion flag signal, the method includes: Determine whether the load circuit meets the conditions for switching to the target operating state based on the current and temperature signals. If it is determined that the load circuit has the conditions to switch to the target operating state, a state completion signal is generated and output to the load circuit. The state completion signal is used to instruct the load circuit to start performing the functional operation corresponding to the target operating state.

11. The power supply method according to claim 7, characterized in that, The step of adjusting the supply current or voltage to the load circuit in response to the status flag signal before the load circuit switches to the target operating state includes: In response to the status flag signal, when the status flag signal indicates a boost, the analog regulation loop is controlled to drive the output voltage to rise rapidly to the target threshold voltage, and the digital regulation loop is controlled to work together to perform fine adjustment. When the status indicator signal indicates a voltage reduction, the analog regulation loop is controlled to rapidly reduce the reference voltage, and the digital regulation loop is controlled to slowly turn off the power switch array, so that the output voltage is smoothly reduced to the target threshold voltage.

12. The power supply method according to claim 11, characterized in that, The digital adjustment loop adjustment process includes: Convert the output voltage into the current voltage digital code; The current voltage digital code is compared with the target voltage digital code representing the target voltage value to generate an error signal. The error signal is then processed to generate a digital control signal for controlling the power switch array.

13. A system-on-a-chip, characterized in that, include: A current sampling unit is configured to collect the current signal flowing to the load circuit; A temperature sensor unit is configured to detect the temperature of the power supply circuit or the load circuit and generate a temperature signal; A power supply circuit, coupled to the current sampling unit and the temperature sensor unit, includes: a state prediction controller module connected to the load circuit, configured to acquire system environmental parameter signals and generate a state flag signal based on the system environmental parameter signals, wherein the system environmental parameter signals include the current signal, the temperature signal, and the operating state indication signal of the load circuit; the system environmental parameter signals are used to indicate the performance requirement state of the load circuit and the current safe operating boundary conditions of the circuit, and the state flag signal is used to indicate the predicted target operating state that the load circuit is about to switch to; and a voltage regulation module connected to the state prediction controller module, configured to, in response to the state flag signal, regulate the supply current or voltage flowing to the load circuit before the load circuit switches to the target operating state. A power switch array is connected to the digital regulation loop of the voltage regulation module and is configured to turn on or off based on the digital control signal to regulate the output voltage of the power supply circuit.

14. An electronic device, characterized in that, The electronic device includes: a housing, a processor, a memory, a circuit board, and a power supply circuit, wherein the circuit board is disposed inside the space enclosed by the housing, and the processor and the memory are disposed on the circuit board; the power supply circuit is used to supply power to various circuits or devices of the electronic device; the memory is used to store executable program code; the processor runs a program corresponding to the executable program code by reading the executable program code stored in the memory, for executing the power supply method of any one of claims 7 to 12.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores one or more programs, which can be executed by one or more processors to implement the power supply method according to any one of claims 7 to 12.

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