CN118151714B - Charging and discharging digital-analog mixed voltage compensation method - Google Patents

Abstract

The present invention provides a charge and discharge digital-analog hybrid voltage compensation method, comprising the following steps: target voltage setting; real-time voltage monitoring; voltage comparison; switch control; threshold region allocation; nested cumulative compensation; digital logic operation; voltage regulation execution. The present invention stores the target output voltage inside the chip, detects the real-time voltage, sets multiple unidirectional switches, and adopts an on-chip gradient linear compensation or reduction mode to autonomously adjust the voltage output of the voltage output circuit, maintain the stability and accuracy of the output voltage, and achieve the stability of the voltage output circuit; it is not affected by environmental parameters such as temperature, and directly controls the charging and discharging of multiple switches through limited logic, and can control the stable output of the voltage. Even when the external conditions change, it can still be adaptively applied to various electronic systems and integrated circuits with extremely high requirements for voltage stability, thereby improving the efficiency and stability of the digital-analog hybrid voltage output circuit and achieving more efficient and fast voltage output regulation.

Description

A charging and discharging digital-analog hybrid voltage compensation method

Technical Field

The present invention relates to the technical field of voltage output regulation, and in particular to a charging and discharging digital-analog hybrid voltage compensation method.

Background Art

Temperature compensation resistors are usually used in voltage output circuits to compensate for the temperature errors caused by sensitive components with large peripheral temperature drift, thereby stabilizing the voltage at the voltage output end and improving the accuracy of the output voltage. In the thermal resistor temperature measurement system, the thermal resistor is connected to the signal acquisition module, and the analog-to-digital converter converts the tiny signal into a digital signal and calculates it as a temperature value. Finally, this temperature value is transmitted to the controller, and the temperature compensation resistor is adjusted to correct the output voltage.

However, the existing method of achieving voltage stabilization by adjusting the temperature compensation resistor has the following disadvantages:

1. The temperature sensing and compensation mechanism cannot respond to rapid temperature changes immediately, and the response time is long, which will cause short-term output instability.

2. When designing a temperature compensation circuit, there is usually a predetermined operating temperature range. Beyond this range, the temperature compensation performance cannot be guaranteed and the compensation range is very limited.

3. Electronic components, including temperature compensation resistors themselves, will experience parameter drift or aging as the use time increases, reducing the accuracy of compensation.

4. Temperature compensation resistors need to be calibrated regularly to keep temperature compensation accurate. The resistor calibration requirement increases the maintenance workload and cost.

Summary of the invention

In view of this, the purpose of the present invention is to propose an adaptive charging and discharging digital-analog hybrid voltage compensation method, which stores the target output voltage and detects the real-time voltage performance inside the chip, and is provided with multiple unidirectional switches, adopts on-chip gradient linear compensation or reduction mode, and autonomously adjusts the voltage output of the voltage output circuit to maintain the stability and accuracy of the output voltage, achieves the stability of the voltage output circuit, improves the efficiency and stability of the digital-analog hybrid voltage output circuit, and applies this method to various electronic systems and integrated circuits with extremely high requirements for voltage stability, so as to achieve more efficient and quick voltage output regulation.

The present invention provides a charge-discharge digital-analog hybrid voltage compensation method, which is applicable to a DCDC power chip and includes the following steps:

S1. Setting a storage unit in the chip, storing a preset digital output value of a target voltage in the storage unit, and using the digital output value of the target voltage as an ideal voltage level maintained by a voltage output circuit;

S2, monitoring the output voltage of the voltage output circuit in real time, and converting the output voltage into a digital signal through an analog-to-digital converter ADC to obtain a real-time digital output voltage;

S3, comparing the real-time digital output voltage with the digital output value of the target voltage; judging whether the real-time digital output voltage (actual voltage) is higher than, lower than or within the allowable range of the target voltage according to a preset threshold region;

S4. Determine the charge and discharge strategy to be adopted and perform switch control according to the voltage comparison result of step S3; the charge and discharge strategy includes: if the real-time digital output voltage (actual voltage) is lower than the target voltage, start one or more groups of unidirectional charging switches to increase the voltage to the target voltage;

If the real-time digital output voltage (actual voltage) is higher than the target voltage, one or more sets of unidirectional discharge switches are activated to reduce the voltage to the target voltage;

S5, setting the threshold region, allocating the operating range into different operating regions according to the threshold region, determining the threshold region where the real-time digital output voltage (actual voltage) is located, and selecting the corresponding charge and discharge switch group for operation;

S6, using nested accumulation to control multiple sets of unidirectional charge and discharge switches of the charge and discharge switch group, adjusting the voltage at different levels and precisions, and controlling the increase and decrease of the voltage more delicately;

S7, using the matching property of the digital logic circuit to quickly determine the charge and discharge switch state corresponding to the charge and discharge switch group, including the following steps:

S71. Use microcontrollers and logic gate digital circuits to generate digital signals; these signals are usually binary and can be high (logic "1") or low (logic "0");

S72, designing a digital logic circuit to perform a specific logic operation, wherein the logic operation includes: basic AND, OR, NOT logic, more complex NAND, NOR, XOR logic, and compound logic;

S73, integrating a digital logic circuit with a switch circuit (such as a transistor, a relay, a solid-state relay, etc.); a signal generated by the digital logic circuit controls the switch state (on or off) of the switch circuit;

S74. For applications that require voltage control (such as battery charging and discharging or power management), design corresponding logic circuits to determine when and how to switch voltage lines or adjust voltage levels, and ensure that the logic state of the logic circuit is synchronized with the actual switch state. For example, logic "1" means the switch is closed, while logic "0" means the switch is open.

The charge and discharge switch group includes components such as decoders and multiplexers to simplify the switch control logic. The scheme of combining digital logic operations with switching circuits usually involves using digital signals to control the state of switches in power supplies or other electrical systems. This scheme can be used in a variety of applications, from basic switch control to more complex voltage regulation and power management systems.

A digital circuit or digital integrated circuit is a complex circuit composed of many logic gates. Compared with analog circuits, it mainly processes digital signals (that is, the signal is represented by two states, 0 and 1), so it has a stronger anti-interference ability. Digital integrated circuits have various gate circuits, triggers, and various combinational logic circuits and sequential logic circuits composed of them. A digital system is generally composed of a control component and an operation component. Driven by a clock pulse, the control component controls the operation component to complete the action to be performed. Through analog-to-digital converters and digital-to-analog converters, digital circuits can be connected to analog circuits.

Combinational logic circuit is abbreviated as combinational circuit. It is composed of the most basic logic gate circuits. The characteristics are: the output value is only related to the input value at that time, that is, the output is determined solely by the input value at that time. The circuit has no memory function, and the output state changes with the input state, similar to the resistive circuit, such as adders, decoders, encoders, data selectors, etc.

Sequential logic circuit is abbreviated as sequential circuit. It is a circuit composed of the most basic logic gate circuit plus feedback logic loop (output to input) or device combination. The most essential difference from the combinational circuit is that the sequential circuit has a memory function. The characteristics of the sequential circuit are: the output depends not only on the input value at that time, but also on the past state of the circuit. It is similar to the circuit of inductance or capacitance containing energy storage elements, such as triggers, latches, counters, shift registers, storage devices and other circuits are typical devices of sequential circuits.

Digital circuits can be divided into discrete digital circuits and integrated digital circuits according to whether the circuits have integrated components. According to the integration level of integrated circuits, they can be divided into small-scale integrated digital circuits (SSI), medium-scale integrated digital circuits (MSI), large-scale integrated digital circuits (LSI) and very large-scale integrated digital circuits (VLSI). According to the semiconductor devices that make up the circuits, they can be divided into bipolar digital circuits and unipolar digital circuits.

S8. Based on the control algorithm, the actuator is activated to perform charging or discharging operations and the voltage is dynamically adjusted according to demand. After the charging or discharging adjustment, the output voltage continues to be monitored. If the adjusted voltage still does not reach the target voltage or a new deviation occurs, the comparison and adjustment process of steps S3-S8 is repeated until the output voltage stabilizes at the target voltage level.

Further, the method of storing the digital output value of the preset target voltage in the storage unit in step S1 comprises the following steps:

S11. According to the circuit design requirements and application scenarios, determine the ideal output voltage value to ensure the normal operation of the chip and system circuit; the output voltage value keeps the circuit stable.

S12, converting the determined output voltage value into a digital value of a target voltage represented by a digital representation through a lookup table, an algorithm or a preset conversion method, so as to be compatible with a digital circuit;

S13. The digital value of the target voltage is stored in a non-volatile storage unit within the chip, such as a read-only memory (ROM), a programmable read-only memory (PROM), a flash memory or other types of memory. The digital value of the target voltage is loaded into a quickly accessible register or storage unit after power-on or reset for real-time comparison.

Furthermore, the method for real-time monitoring of the output terminal voltage of the voltage output circuit in step S2 comprises the following steps:

S21. Determine the target nodes of the chip and system circuits whose key performance needs to be monitored and are greatly affected by voltage changes; for example, the power supply nodes of the core processor or the analog interface circuits.

S22. Use an analog voltage sensor in conjunction with an analog-to-digital converter (ADC) to detect the voltage of the target node; these sensors are usually used in conjunction with an analog-to-digital converter (ADC) to convert analog voltage signals into digital signals for processing by digital circuits.

Analog circuits are circuits used to transmit, transform, process, amplify, measure and display analog signals. Analog signals refer to continuously changing electrical signals. Analog circuits are the basis of electronic circuits, and they mainly include amplifier circuits, signal operation and processing circuits, oscillation circuits, modulation and demodulation circuits, and power supplies.

The characteristics of analog circuits include: the function has an infinite number of values. When the image information changes, the waveform of the signal also changes, that is, the information to be transmitted by the analog signal is contained in its waveform (the law of information change is directly reflected in the change of the amplitude, frequency and phase of the analog signal). Primary analog circuits mainly solve two major aspects: 1. Amplification 2. Signal source. Analog signals have continuity.

The functions of analog circuits include: Amplifier circuit: used for signal voltage, current or power amplification. Filter circuit: used for signal extraction, transformation or anti-interference. Arithmetic circuit: completes signal proportion, addition, subtraction, multiplication, division, integration, differentiation, logarithm, exponent and other operations. Signal conversion circuit: used to convert current signal into voltage signal or voltage signal into current signal, DC signal into AC signal or AC signal into DC signal, and DC voltage into a frequency proportional to it. Signal generation circuit: used to generate sine wave, rectangular wave, triangle wave, sawtooth wave. DC power supply: converts 220V, 50Hz AC into DC with different output voltage and current as power supply for various electronic circuits.

S23. Set the sampling frequency of the analog-to-digital converter ADC for measuring voltage; the sampling frequency should be high enough to capture rapid changes in voltage, but not too high to avoid unnecessary power consumption. The resolution of the ADC determines the minimum voltage change that can be detected. The higher the resolution, the more precise the system circuit can monitor the voltage, but this also means higher cost and power consumption.

S24. A filter and an amplifier circuit are set before the analog-to-digital converter ADC to adjust the voltage signal and ensure the quality of the voltage signal, such as reducing noise and suppressing interference, to ensure the accuracy of the monitoring data.

Real-time monitoring can be continuous, with the ADC continuously reading voltage values; or it can be based on specific trigger conditions, such as starting when the voltage fluctuation exceeds a predetermined threshold.

Further, the method of comparing the real-time digital output voltage with the digital output value of the target voltage in step S3 comprises the following steps:

S31. At the hardware level, voltage comparison is achieved by a comparator or an analog-to-digital converter (ADC) combined with a software algorithm. The comparator can provide a simple high/low output, while the ADC provides richer voltage difference information.

S32, setting a reference voltage value, using the reference voltage value directly as one of the inputs when using a comparator; using the reference voltage value for subsequent digital comparison when using an ADC; this reference voltage value is usually derived from a target voltage setting.

S33, obtaining the real-time voltage value of the current target node of the system circuit through ADC or direct measurement;

S34, the comparator automatically performs a comparison operation, and if the real-time voltage is higher than the reference voltage, the comparator outputs a logic high signal; if the real-time voltage is lower than the reference voltage, the comparator outputs a logic low signal; for a digital system, the comparison operation may be a software algorithm that compares the ADC reading with the target voltage value stored in the register;

S35, setting a threshold or tolerance range for the deviation between the real-time digital output voltage and the target voltage, and determining when the voltage deviation exceeds a normal range for natural fluctuations of the voltage due to load changes and temperature fluctuations;

S36, when it is monitored that the deviation between the real-time digital output voltage and the target voltage exceeds a threshold, the system circuit takes corresponding measures including adjusting the output of the power supply or activating a related protection mechanism;

S37, introduce a hysteresis mechanism, which triggers adjustment only when the voltage exceeds the threshold for a period of time, to prevent jitter caused by frequent switching and adjustment;

S38. Use the result of the voltage comparison as a voltage or digital signal of a feedback signal, and use the feedback signal to guide the action of a voltage regulation mechanism in a closed-loop control system.

Furthermore, the switch control method of step S4 comprises the following steps:

S41. Determine the objectives and requirements of switch control, including switching speed, response time, efficiency and reliability, and design control strategies based on these objectives and requirements to ensure rapid and accurate response when voltage is abnormal;

S42. Select the appropriate switching device according to the voltage and current levels to be controlled and the switching frequency; commonly used switching devices include transistors (such as BJT, MOSFET, IGBT), relays, solid-state relays (SSR) and thyristors (SCR).

S43, selecting an adaptive driving circuit to control the opening and closing of the switch device; for a transistor, an appropriate gate voltage needs to be provided; for a relay, sufficient current is required to activate the coil.

S44, using a pulse width modulation (PWM) method to control the output voltage of the voltage output circuit by adjusting the on-time and off-time ratio of the switching device;

In many applications, especially power converters, pulse width modulation (PWM) is a common method to control the output voltage.

S45, the real-time monitored digital output voltage value is continuously compared with the preset digital output of the target voltage through a feedback loop to implement a closed-loop control system, and the switch state is adjusted according to the comparison result to maintain the required voltage level.

Furthermore, the method of setting the threshold area in step S5 and allocating different operation areas according to the threshold area includes the following steps:

S51. Set multiple thresholds to define different operating areas; for example, for voltage, a minimum threshold and several maximum thresholds of different levels may be set.

S52. Divide the entire operating range into multiple operating areas according to the multiple thresholds; for example, there may be a "normal operating area", a "warning area", a "dangerous area", etc.

S53. Define a set of associated control logic for each operation area; in the normal operation area, the system circuit works normally as expected; in the warning area, the system circuit issues a warning signal and takes preventive measures; in the danger area, the system circuit enforces protection actions, such as disconnecting the power supply or switching to the backup system.

Furthermore, the method of controlling multiple sets of unidirectional charge and discharge switches of the charge and discharge switch group in a nested cumulative manner in step S6 includes the following steps:

S61, comparing the current output voltage of the voltage output circuit with a preset target voltage to identify any existing errors;

S62, adding the error of the current cycle to the previous accumulated error as an integration process to help eliminate the steady-state error;

Nested summation compensation usually involves multiple control loops. Within the main control loop, there may be one or more secondary control loops. Each control loop controls a switch, and each secondary control loop is independently adjusted based on their error accumulation.

S63, Dynamic Compensation: Dynamically adjust the control signal to compensate for the accumulated errors, including increasing or decreasing the voltage, current or other necessary control variables.

Furthermore, the method for dynamically adjusting voltage according to demand in step S8 comprises the following steps:

S81, using a strategy such as a proportional-integral-derivative PID control algorithm to determine a correct adjustment action for the output voltage, and using the correct adjustment action to change the output voltage to correct any deviation;

S82. According to the output of the control algorithm, an actuator is activated, such as a switch mode power supply (SMPS), a linear regulator or a power transistor, to adjust the output voltage; the actuator increases or decreases the energy output of the voltage output circuit according to the demand, thereby adjusting the output voltage. For example, in the SMPS, it involves changing the switching frequency or duty cycle.

Through the process of steps S1-S8, the chip can autonomously adjust its voltage output to remain stable and accurate even when external conditions change. This adaptive voltage compensation method can be used in various electronic systems and integrated circuits, especially those applications that require extremely high voltage stability, such as temperature compensation circuits.

The temperature compensation circuit belongs to the field of electronic circuit technology, including the voltage regulator diode and thermistor used in the circuit. In the connection relationship of the temperature compensation circuit, after the thermistor, it is connected to the operational amplifier circuit through an adjustable potentiometer, and the negative end of the amplifier circuit is connected to the output end of the circuit. The circuit has a simple structure, is accurate and reliable, and can be used for temperature compensation of sensitive components with large temperature value drift.

Temperature compensation is to make the reference temperature of the free end of the temperature sensor more appropriate. Most temperature sensors require temperature compensation, and the commonly used temperature compensation method is the bridge compensation method.

Some electronic products use some electronic components with positive temperature coefficients and negative temperature coefficients. For example, resistors with positive temperature coefficients increase with increasing temperature, while resistors with negative temperature coefficients have the opposite effect: their resistance decreases with increasing temperature.

For example, in an application, if you make a sensor and only use a component with one temperature coefficient, the error will be relatively large. If you use a combination of components with positive and negative temperature coefficients, the positive and negative phases are balanced and the error will be relatively small.

The present invention sets a storage unit on a chip to record the target voltage digital output value; sets a voltage measurement unit to record the conversion into the real-time digital output voltage in real time; sets a logic comparison unit to compare the real-time digital output voltage with the target voltage digital output value; sets multiple threshold regions, sets multiple sets of unidirectional charge and discharge switches, one side of the charge and discharge switch is connected to a high level, and the other side is connected to a low level, and the multiple sets of unidirectional charge and discharge switches are charged and discharged in different regions according to the threshold region where the real-time digital output voltage is located. The multiple sets of unidirectional charge and discharge switches are nested and accumulated, and the multi-layer nesting method is adopted to have good matching properties with the digital logic circuit, that is, the result can be obtained by simply detecting the high and low of the corresponding bits.

The present invention also provides a computer-readable storage medium having a computer program stored thereon, and when the program is executed by a processor, the steps of the charge-discharge digital-analog hybrid voltage compensation method as described above are implemented.

The present invention also provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps of the charging and discharging digital-analog hybrid voltage compensation method as described above are implemented.

Compared with the prior art, the present invention has the following beneficial effects:

The charge and discharge voltage compensation method provided by the present invention stores the target output voltage and detects the real-time voltage performance inside the chip, and is provided with multiple unidirectional switches, adopts on-chip gradient linear compensation or reduction mode, autonomously adjusts the voltage output of the voltage output circuit, maintains the stability and accuracy of the output voltage, and realizes the stability of the voltage output circuit; compared with the traditional voltage regulation scheme, the scheme of the present invention is not affected by environmental parameters such as temperature, directly controls the charging and discharging of multiple switches through limited logic, and can control the stable output of voltage; even when the external conditions change, the adaptive voltage compensation method can still be applied to various electronic systems and integrated circuits with extremely high requirements for voltage stability, improves the efficiency and stability of the digital-analog hybrid voltage output circuit, and realizes more efficient and fast voltage output regulation.

BRIEF DESCRIPTION OF THE DRAWINGS

Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the following detailed description of the preferred embodiment.The drawings are only for the purpose of illustrating the preferred embodiments and are not to be construed as limiting the invention.

In the attached picture:

FIG1 is a flow chart of a charge-discharge digital-analog hybrid voltage compensation method according to the present invention;

FIG2 is a flow chart of a method for storing a digital output value of a preset target voltage in a storage unit of the present invention;

3 is a flow chart of a method for real-time monitoring of the output voltage of a voltage output circuit according to the present invention;

FIG4 is a flow chart of a method for comparing a real-time digital output voltage with a digital output value of a target voltage according to the present invention;

FIG5 is a flow chart of a switch control method according to the present invention;

FIG6 is a flow chart of a method for setting a threshold region and allocating different operation regions according to the threshold region according to the present invention;

7 is a flow chart of a method for controlling multiple sets of unidirectional charge and discharge switches of a charge and discharge switch group by a nested accumulation method according to the present invention;

8 is a flow chart of a method for quickly determining the charge and discharge switch states corresponding to a charge and discharge switch group by using the matching properties of a digital logic circuit according to the present invention;

FIG9 is a flow chart of a method for dynamically adjusting voltage according to demand according to the present invention;

FIG10 is a schematic diagram of the basic circuit structure principle of an embodiment of the present invention;

FIG. 11 is a schematic diagram showing the structure of a computer device according to an embodiment of the present invention.

DETAILED DESCRIPTION

Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and products consistent with some aspects of the present disclosure as detailed in the appended claims.

The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms "a", "the" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and/or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

The embodiments of the present invention are described in further detail below.

An embodiment of the present invention provides a charge-discharge digital-analog hybrid voltage compensation method, which is applicable to a DCDC power supply chip, as shown in FIG1 , and includes the following steps:

S1. Setting a storage unit in the chip, storing a preset digital output value of a target voltage in the storage unit, and using the digital output value of the target voltage as an ideal voltage level maintained by a voltage output circuit;

The method for storing the digital output value of the preset target voltage in the storage unit, as shown in FIG2, comprises the following steps:

S11. Determine the ideal output voltage value to ensure normal operation of the chip and system circuit according to the circuit design requirements and application scenarios;

S12, converting the determined output voltage value into a digital value of a target voltage represented by a digital representation through a lookup table, an algorithm or a preset conversion method, so as to be compatible with a digital circuit;

S13, storing the digital value of the target voltage in a non-volatile storage unit in the chip, and loading the digital value of the target voltage into a quickly accessible register or storage unit after power-on or reset for real-time comparison.

S2, monitoring the output voltage of the voltage output circuit in real time, and converting the output voltage into a digital signal through an analog-to-digital converter ADC to obtain a real-time digital output voltage;

The method for real-time monitoring of the output terminal voltage of the voltage output circuit, as shown in FIG3 , comprises the following steps:

S21, determine the target nodes whose key performances of the chip and system circuits to be monitored are greatly affected by voltage changes;

S22, using an analog voltage sensor in conjunction with an analog-to-digital converter ADC to detect the voltage of the target node;

S23, setting the sampling frequency of the analog-to-digital converter ADC for the measured voltage;

The sampling frequency should be high enough to capture fast changes in voltage, but not too high to avoid unnecessary power consumption. The resolution of the ADC determines the smallest voltage change that can be detected. The higher the resolution, the more precise the system circuit can monitor the voltage, but it also means higher cost and power consumption.

S24. A filter and an amplifier circuit are set before the analog-to-digital converter ADC to adjust the voltage signal, ensure the quality of the voltage signal, and ensure the accuracy of the monitoring data.

Continuous monitoring vs. triggered monitoring: Real-time monitoring is continuous, with the ADC continuously reading voltage values; or it can be based on specific trigger conditions, such as starting when the voltage fluctuation exceeds a predetermined threshold.

S3, comparing the real-time digital output voltage with the digital output value of the target voltage; judging whether the real-time digital output voltage (actual voltage) is higher than, lower than or within the allowable range of the target voltage according to a preset threshold region;

The method for comparing the real-time digital output voltage with the digital output value of the target voltage, as shown in FIG4 , comprises the following steps:

S31, at the hardware level, the voltage comparison is implemented by a comparator or an analog-to-digital converter ADC combined with a software algorithm;

S32, setting a reference voltage value, and using the reference voltage value directly as one of the inputs when using a comparator; and using the reference voltage value for subsequent digital comparison when using an ADC;

In this embodiment, the reference voltage value is derived from the target voltage setting.

S33, obtaining the real-time voltage value of the current target node of the system circuit through ADC or direct measurement;

S34, the comparator automatically performs a comparison operation, and if the real-time voltage is higher than the reference voltage, the comparator outputs a logic high signal; if the real-time voltage is lower than the reference voltage, the comparator outputs a logic low signal;

S35, setting a threshold or tolerance range for the deviation between the real-time digital output voltage and the target voltage, and determining when the voltage deviation exceeds a normal range for natural fluctuations of the voltage due to load changes and temperature fluctuations;

S36, when it is monitored that the deviation between the real-time digital output voltage and the target voltage exceeds a threshold, the system circuit takes corresponding measures including adjusting the output of the power supply or activating a related protection mechanism;

S37, introduce a hysteresis mechanism, which triggers adjustment only when the voltage exceeds the threshold for a period of time, to prevent jitter caused by frequent switching and adjustment;

S38. Use the result of the voltage comparison as a voltage or digital signal of a feedback signal, and use the feedback signal to guide the action of a voltage regulation mechanism in a closed-loop control system.

S4. Determine the charge and discharge strategy to be adopted and perform switch control according to the voltage comparison result of step S3; the charge and discharge strategy includes: if the real-time digital output voltage (actual voltage) is lower than the target voltage, start one or more groups of unidirectional charging switches to increase the voltage to the target voltage;

If the real-time digital output voltage (actual voltage) is higher than the target voltage, one or more sets of unidirectional discharge switches are activated to reduce the voltage to the target voltage;

The switch control method, as shown in FIG5 , comprises the following steps:

S41. Determine the objectives and requirements of switch control, including switching speed, response time, efficiency and reliability, and design control strategies based on these objectives and requirements to ensure rapid and accurate response when voltage is abnormal;

S42, selecting an appropriate switching device according to the voltage and current levels and switching frequency to be controlled;

Switching devices include transistors (such as BJT, MOSFET, IGBT), relays, solid-state relays (SSR) and thyristors (SCR).

S43, selecting an adaptive driving circuit to control the on and off of the switch device;

For transistors, this requires providing the proper gate voltage; for relays, this requires sufficient current to activate the coil.

S44, using a pulse width modulation (PWM) method to control the output voltage of the voltage output circuit by adjusting the on-time and off-time ratio of the switching device;

S45, the real-time monitored digital output voltage value is continuously compared with the preset digital output of the target voltage through a feedback loop to implement a closed-loop control system, and the switch state is adjusted according to the comparison result to maintain the required voltage level.

S5, setting the threshold region, allocating the operating range into different operating regions according to the threshold region, determining the threshold region where the real-time digital output voltage (actual voltage) is located, and selecting the corresponding charge and discharge switch group for operation;

The method of setting the threshold area and allocating different operation areas according to the threshold area, as shown in FIG6 , includes the following steps:

S51, setting multiple thresholds to define different operation areas;

S52, dividing the entire operation range into multiple operation areas according to the multiple thresholds;

In this embodiment, the operating area includes a "normal operating area", a "warning area", a "danger area" and the like.

S53. Define a set of associated control logic for each operating area; in the normal operating area, the system circuit works normally as expected; in the warning area, the system circuit sends a warning signal and takes preventive measures; in the danger zone, the system circuit enforces protection actions.

S6, using nested accumulation to control multiple sets of unidirectional charge and discharge switches of the charge and discharge switch group, adjusting the voltage at different levels and precisions, and controlling the increase and decrease of the voltage more delicately;

The method of controlling multiple sets of unidirectional charge and discharge switches of a charge and discharge switch group in a nested cumulative manner, as shown in FIG7 , comprises the following steps:

S61, comparing the current output voltage of the voltage output circuit with a preset target voltage to identify any existing errors;

S62, adding the error of the current cycle to the previous accumulated error as an integration process to help eliminate the steady-state error;

Nested summation compensation involves multiple control loops. Within the main control loop, there may be one or more secondary control loops. Each control loop controls a switch, and each secondary control loop is independently adjusted based on their error accumulation.

S63, dynamic compensation: dynamically adjust the control signal based on the accumulated errors to compensate for these errors.

S7, using the matching property of the digital logic circuit to quickly determine the charge and discharge switch state corresponding to the charge and discharge switch group, as shown in FIG8, including the following steps:

S71, Generate digital signals using microcontrollers and logic gate digital circuits;

S72, designing a digital logic circuit to perform a specific logic operation, wherein the logic operation includes: basic AND, OR, NOT logic, more complex NAND, NOR, XOR logic, and compound logic;

S73, integrating a digital logic circuit with a switch circuit; a signal generated by the digital logic circuit controls a switch state of the switch circuit;

S74. For applications that require voltage control, design corresponding logic circuits to determine when and how to switch voltage lines or adjust voltage levels, and ensure that the logic state of the logic circuit is synchronized with the actual switching state.

In this embodiment, logic "1" indicates that the switch is closed, and logic "0" indicates that the switch is open.

The charge and discharge switch group includes components such as decoders and multiplexers to simplify the switch control logic. The scheme of combining digital logic operations with switching circuits usually involves using digital signals to control the state of switches in power supplies or other electrical systems. This scheme can be used in a variety of applications, from basic switch control to more complex voltage regulation and power management systems.

S8. Based on the control algorithm, the actuator is activated to perform charging or discharging operations and the voltage is dynamically adjusted according to demand. After the charging or discharging adjustment, the output voltage continues to be monitored. If the adjusted voltage still does not reach the target voltage or a new deviation occurs, the comparison and adjustment process of steps S3-S8 is repeated until the output voltage stabilizes at the target voltage level.

The method for dynamically adjusting voltage according to demand, as shown in FIG9 , includes the following steps:

S81, using a strategy such as a proportional-integral-derivative PID control algorithm to determine a correct adjustment action for the output voltage, and using the correct adjustment action to change the output voltage to correct any deviation;

S82. According to the output of the control algorithm, the actuator is activated, and the actuator increases or decreases the energy output of the voltage output circuit according to demand, thereby adjusting the output voltage.

FIG. 10 shows the basic circuit structure principle of this embodiment.

Through the process of steps S1-S8, the chip is able to autonomously adjust its voltage output to remain stable and accurate even when external conditions change. This adaptive voltage compensation method can be used in various electronic systems and integrated circuits, especially those applications that require extremely high voltage stability.

An embodiment of the present invention further provides a computer device, and FIG11 is a schematic diagram of the structure of a computer device provided by an embodiment of the present invention; as shown in FIG11 , the computer device includes: an input device 23, an output device 24, a memory 22 and a processor 21; the memory 22 is used to store one or more programs; when the one or more programs are executed by the one or more processors 21, the one or more processors 21 implement the charging and discharging digital-analog hybrid voltage compensation method provided in the above embodiment; wherein the input device 23, the output device 24, the memory 22 and the processor 21 can be connected via a bus or other methods, and FIG11 takes the connection via a bus as an example.

The memory 22 is a readable and writable storage medium of a computing device, which can be used to store software programs and computer executable programs, such as program instructions corresponding to the charge and discharge digital-analog hybrid voltage compensation method described in the embodiment of the present invention; the memory 22 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system and at least one application required for a function; the data storage area can store data created according to the use of the device, etc.; in addition, the memory 22 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device; in some instances, the memory 22 can further include a memory remotely arranged relative to the processor 21, and these remote memories can be connected to the device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The input device 23 may be used to receive input digital or character information, and to generate key signal input related to user settings and function control of the device; the output device 24 may include a display device such as a display screen.

The processor 21 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 22, that is, realizes the above-mentioned charge and discharge digital-analog hybrid voltage compensation method.

The computer device provided above can be used to execute the charging and discharging digital-analog hybrid voltage compensation method provided in the above embodiment, and has corresponding functions and beneficial effects.

The embodiment of the present invention also provides a storage medium containing computer executable instructions, which are used to execute the dynamic power management method based on Open Stack Ironic as provided in the above embodiment when executed by a computer processor. The storage medium is any of various types of memory devices or storage devices, and the storage medium includes: installation media, such as CD-ROM, floppy disk or tape device; computer system memory or random access memory, such as DRAM, DDR RAM, SRAM, EDO RAM, Rambus RAM, etc.; non-volatile memory, such as flash memory, magnetic media (such as hard disk or optical storage); registers or other similar types of memory elements, etc.; the storage medium may also include other types of memory or a combination thereof; in addition, the storage medium may be located in a first computer system in which the program is executed, or may be located in a different second computer system, which is connected to the first computer system via a network (such as the Internet); the second computer system may provide program instructions to the first computer for execution. The storage medium includes two or more storage media that can reside in different locations (for example, in different computer systems connected via a network). The storage medium can store program instructions (for example, specifically implemented as a computer program) that can be executed by one or more processors.

Of course, the storage medium containing computer executable instructions provided in an embodiment of the present invention is not limited to the charging and discharging digital-analog mixed voltage compensation method described in the above embodiment, and can also execute related operations in the charging and discharging digital-analog mixed voltage compensation method provided in any embodiment of the present invention.

So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. A charge-discharge digital-analog hybrid voltage compensation method, applicable to a DCDC power chip, characterized in that it comprises the following steps: S1. Setting a storage unit in the chip, storing a preset digital output value of a target voltage in the storage unit, and using the digital output value of the target voltage as an ideal voltage level maintained by a voltage output circuit; S2, monitoring the output voltage of the voltage output circuit in real time, and converting the output voltage into a digital signal through an analog-to-digital converter ADC to obtain a real-time digital output voltage; S3, comparing the real-time digital output voltage with the digital output value of the target voltage; judging whether the real-time digital output voltage is higher, lower or within the allowable range of the target voltage according to a preset threshold region; The method of comparing the real-time digital output voltage with the digital output value of the target voltage in step S3 comprises the following steps: S31. At the hardware level, the voltage comparison is implemented by a comparator or an analog-to-digital converter ADC combined with a software algorithm; S32, setting a reference voltage value, and using the reference voltage value directly as one of the inputs when using a comparator; and using the reference voltage value for subsequent digital comparison when using an ADC; S33, obtaining the real-time voltage value of the current target node of the system circuit through ADC or direct measurement; S34, the comparator automatically performs a comparison operation, and if the real-time voltage is higher than the reference voltage, the comparator outputs a logic high signal; if the real-time voltage is lower than the reference voltage, the comparator outputs a logic low signal; S35, setting a threshold or tolerance range for the deviation between the real-time digital output voltage and the target voltage, and determining when the voltage deviation exceeds a normal range for natural fluctuations of the voltage due to load changes and temperature fluctuations; S36, when it is monitored that the deviation between the real-time digital output voltage and the target voltage exceeds a threshold, the system circuit takes corresponding measures including adjusting the output of the power supply or activating a related protection mechanism; S37, introduce a hysteresis mechanism, which triggers adjustment only when the voltage exceeds the threshold for a period of time, to prevent jitter caused by frequent switching and adjustment; S38, using the result of the voltage comparison as a voltage or digital signal of a feedback signal, and using the feedback signal to guide the action of a voltage regulation mechanism in a closed-loop control system; S4. Determine the charge and discharge strategy to be adopted and perform switch control according to the voltage comparison result of step S3; the charge and discharge strategy includes: if the real-time digital output voltage is lower than the target voltage, start one or more groups of unidirectional charging switches to increase the voltage to the target voltage; If the real-time digital output voltage is higher than the target voltage, one or more sets of unidirectional discharge switches are activated to reduce the voltage to the target voltage; S5, setting the threshold region, allocating the operating range into different operating regions according to the threshold region, determining the threshold region where the real-time digital output voltage is located, and selecting the corresponding charge and discharge switch group for operation; S6, using nested accumulation to control multiple sets of unidirectional charge and discharge switches of the charge and discharge switch group, adjusting the voltage at different levels and precisions, and controlling the increase and decrease of the voltage more delicately; The method of controlling multiple sets of unidirectional charge and discharge switches of a charge and discharge switch group by nested accumulation in step S6 comprises the following steps: S61, comparing the current output voltage of the voltage output circuit with a preset target voltage to identify any existing errors; S62, adding the error of the current cycle to the previous accumulated error as an integration process to help eliminate the steady-state error; S63, dynamically adjusting the control signal according to the accumulated errors to compensate for the errors; S7, using the matching property of the digital logic circuit to quickly determine the charge and discharge switch state corresponding to the charge and discharge switch group, including the following steps: S71, Generate digital signals using microcontrollers and logic gate digital circuits; S72, designing a digital logic circuit to perform a specific logic operation, wherein the logic operation includes: basic AND, OR, NOT logic, more complex NAND, NOR, XOR logic, and compound logic; S73, integrating a digital logic circuit with a switch circuit; a signal generated by the digital logic circuit controls a switch state of the switch circuit; S74. For applications requiring voltage control, design corresponding logic circuits to determine when and how to switch voltage lines or adjust voltage levels, and ensure that the logic state of the logic circuit is synchronized with the actual switch state; S8. Based on the control algorithm, the actuator is activated to perform charging or discharging operations and the voltage is dynamically adjusted according to demand. After the charging or discharging adjustment, the output voltage continues to be monitored. If the adjusted voltage still does not reach the target voltage or a new deviation occurs, the comparison and adjustment process of steps S3-S8 is repeated until the output voltage stabilizes at the target voltage level. 2. The charge-discharge digital-analog hybrid voltage compensation method according to claim 1, characterized in that the method of storing the digital output value of the preset target voltage in the storage unit in step S1 comprises the following steps: S11. Determine the ideal output voltage value to ensure normal operation of the chip and system circuit according to the circuit design requirements and application scenarios; S12, converting the determined output voltage value into a digital value of a target voltage represented by a digital representation through a lookup table, an algorithm or a preset conversion method, so as to be compatible with a digital circuit; S13, storing the digital value of the target voltage in a non-volatile storage unit in the chip, and loading the digital value of the target voltage into a quickly accessible register or storage unit after power-on or reset for real-time comparison. 3. The charge-discharge digital-analog hybrid voltage compensation method according to claim 1, characterized in that the method of real-time monitoring of the output voltage of the voltage output circuit in step S2 comprises the following steps: S21, determine the target nodes whose key performances of the chip and system circuits to be monitored are greatly affected by voltage changes; S22, using an analog voltage sensor in conjunction with an analog-to-digital converter ADC to detect the voltage of the target node; S23, setting the sampling frequency of the analog-to-digital converter ADC for the measured voltage; S24. A filter and an amplifier circuit are set before the analog-to-digital converter ADC to adjust the voltage signal, ensure the quality of the voltage signal, and ensure the accuracy of the monitoring data. 4. The charge-discharge digital-analog hybrid voltage compensation method according to claim 1, characterized in that the switch control method of step S4 comprises the following steps: S41. Determine the objectives and requirements of switch control, including switching speed, response time, efficiency and reliability, and design control strategies based on these objectives and requirements to ensure rapid and accurate response when voltage is abnormal; S42, selecting an appropriate switching device according to the voltage and current levels and switching frequency to be controlled; S43, selecting an adaptive driving circuit to control the on and off of the switch device; S44, using a pulse width modulation (PWM) method to control the output voltage of the voltage output circuit by adjusting the on-time and off-time ratio of the switching device; S45, the real-time monitored digital output voltage value is continuously compared with the preset digital output of the target voltage through a feedback loop to implement a closed-loop control system, and the switch state is adjusted according to the comparison result to maintain the required voltage level. 5. The charge-discharge digital-analog hybrid voltage compensation method according to claim 1, characterized in that the method of setting the threshold region in step S5 and allocating different operating regions according to the threshold region comprises the following steps: S51, setting multiple thresholds to define different operation areas; S52, dividing the entire operation range into multiple operation areas according to the multiple thresholds; S53. Define a set of associated control logic for each operating area; in the normal operating area, the system circuit works normally as expected; in the warning area, the system circuit sends a warning signal and takes preventive measures; in the danger zone, the system circuit enforces protection actions. 6. The charge-discharge digital-analog hybrid voltage compensation method according to claim 1, characterized in that the method of dynamically adjusting the voltage according to demand in step S8 comprises the following steps: S81, using a strategy such as a proportional-integral-derivative PID control algorithm to determine a correct adjustment action for the output voltage, and using the correct adjustment action to change the output voltage to correct any deviation; S82. According to the output of the control algorithm, the actuator is activated, and the actuator increases or decreases the energy output of the voltage output circuit according to demand, thereby adjusting the output voltage. 7. A computer-readable storage medium having a computer program stored thereon, characterized in that when the program is executed by a processor, the steps of the charge-discharge digital-analog hybrid voltage compensation method according to any one of claims 1 to 6 are implemented. 8. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the steps of the charging and discharging digital-analog hybrid voltage compensation method as described in any one of claims 1 to 6 are implemented.