CN117148956A

CN117148956A - Power supply control method and device and electronic equipment

Info

Publication number: CN117148956A
Application number: CN202311116749.8A
Authority: CN
Inventors: 郭宇婕; 赵春雷; 李志勇
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2023-12-01

Abstract

The application provides a power supply control method, a device and electronic equipment, comprising the following steps: monitoring the running state of the electronic equipment; and if the electronic equipment enters a shutdown state, controlling the output voltage of a power supply module of the electronic equipment to be reduced to a target output voltage so as to reduce the electric quantity provided by the power supply module to the load side of the electronic equipment.

Description

Power supply control method and device and electronic equipment

Technical Field

The present application relates to the field of control, and in particular, to a power supply control method, apparatus, and electronic device.

Background

In the power-off state, if the electronic device is connected with a power supply, certain internal structures of the electronic device are still electrified, so that the electronic device still has certain power consumption.

At present, the energy consumption requirement of the whole system in a shutdown state is more and more strict. For example, some power consumption specifications of electronic equipment products for a power-off mode and a standby mode specify an input power limiting threshold of a system in the power-off mode, so as to reduce the power consumption in the power-off state.

Disclosure of Invention

In view of the above, the present application provides a power supply control method, apparatus and electronic device, as follows:

A power supply control method comprising:

monitoring the running state of the electronic equipment;

and if the electronic equipment enters a shutdown state, controlling the output voltage of a power supply module of the electronic equipment to be reduced to a target output voltage so as to reduce the electric quantity provided by the power supply module to the load side of the electronic equipment.

Optionally, in the above method, the monitoring the operation state of the electronic device includes at least one of:

monitoring output current and/or output power of a power supply module of electronic equipment through a first control chip in the power supply module, and determining that the electronic equipment enters a shutdown state if the output current is smaller than a first threshold value and/or the output power is smaller than a second threshold value;

and identifying a signal from a load side of the electronic equipment, and determining that the electronic equipment enters a shutdown state if a mode switching signal representing that the load side enters a non-working mode is obtained.

Optionally, the method, wherein controlling the output voltage of the power supply module of the electronic device to decrease to the target output voltage includes at least one of:

controlling the frequency and/or the duty ratio of the pulse modulation signal in the power supply module to reduce the output voltage of the power supply module to the target output voltage;

Controlling the resistance value of a target voltage dividing resistor in the power supply module to reduce the output voltage of the power supply module to the target output voltage;

and controlling the working state of a power supply unit in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage.

Optionally, the method, wherein controlling the working state of the power supply unit in the power supply module includes at least one of the following:

processing a signal representing the shutdown state into at least one first driving signal based on the association relation between a load on a load side and a power supply unit in the power supply module, so as to control the working state of the first power supply unit corresponding to the load by using the first driving signal;

and processing the signal representing the shutdown state into at least one first driving signal and at least one second driving signal based on the association relation between the load on the load side and the power supply units in the power supply module, so as to control the working state of the first power supply unit corresponding to the load by using the first driving signal and the working state of the second power supply unit corresponding to the load by using the second driving signal.

controlling at least one first power supply unit at the primary side in the power supply module to switch from a first working state to a second working state, so as to reduce the output voltage of the power supply module by reducing the number of the first power supply units in the first working state;

and controlling at least one first power supply unit at the primary side in the power supply module to switch from a first working state to a second working state, and controlling at least one second power supply unit at the secondary side in the power supply module to switch from the first working state to the second working state, so that the output voltage of the power supply module is reduced by reducing the number of the first power supply units and the second power supply units in the first working state.

Optionally, the above method controls the resistance of the target voltage dividing resistor in the power supply module, including at least one of the following:

if the output current of the power supply module is smaller than a first threshold value and/or the output power of the power supply module is smaller than a second threshold value, a first logic control signal is sent to a target voltage dividing circuit in the power supply module through a first control chip in the power supply module so as to increase the resistance value of the target voltage dividing circuit in the target voltage dividing circuit;

And if a mode switching signal representing that the load side enters a non-working mode is obtained, the mode switching signal is given to a target voltage dividing circuit in the power supply module so as to increase the resistance value of a target voltage dividing resistor in the target voltage dividing circuit.

obtaining hardware configuration information of a load side of electronic equipment, and determining a first output voltage of the power supply module when the electronic equipment is in a shutdown state based on the hardware configuration information so as to reduce the output voltage of the power supply module to the target output voltage based on the first output voltage;

obtaining hardware configuration information of a load side of electronic equipment, and controlling the output voltage of the power supply module to be reduced to the target output voltage based on the hardware configuration information and power supply loss information, wherein the power supply loss information is used for representing loss information of electric power output by the power supply module and transmitted to the load side;

obtaining hardware use information of a load side of electronic equipment, and determining a second output voltage of the power supply module when the electronic equipment is in a shutdown state based on the hardware use information so as to reduce the output voltage of the power supply module to the target output voltage based on the second output voltage;

And obtaining hardware configuration information and hardware use information of a load side of the electronic equipment, and determining a third output voltage of the power supply module when the electronic equipment is in a shutdown state based on the hardware configuration information and the hardware use information so as to reduce the output voltage of the power supply module to the target output voltage based on the third output voltage.

Optionally, the method further comprises:

and in response to the electronic equipment directly entering a display mode from a shutdown state, controlling the output voltage of the power supply module to be increased from the target output voltage to a fourth output voltage, so that the display module of the electronic equipment can output the content to be displayed from the content source end, and the electronic equipment can only output the display content from the content source end in the display mode.

A power supply control device comprising:

the monitoring module is used for monitoring the running state of the electronic equipment;

and the control module is used for controlling the output voltage of the power supply module of the electronic equipment to be reduced to the target output voltage if the electronic equipment enters a shutdown state, so that the electric quantity provided by the power supply module to the load side of the electronic equipment is reduced.

An electronic device, comprising:

the power supply system comprises a power supply module, a load side and a power management controller arranged in the power supply module;

the power supply module is used for providing electric quantity for the load side; the power management controller performs the steps of the power supply control method as described in any one of the above.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings may be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flowchart of an embodiment 1 of a power supply control method provided by the present application;

FIG. 2 is a flowchart of an embodiment 2 of a power supply control method provided by the present application;

FIG. 3 is a flowchart of an embodiment 3 of a power supply control method provided by the present application;

FIG. 4 is a flowchart of an embodiment 4 of a power supply control method according to the present application;

FIG. 5 is a flowchart of an embodiment 5 of a power supply control method provided by the present application;

FIG. 6 is a schematic diagram of a target voltage divider circuit in embodiment 5 of a power supply control method according to the present application;

FIG. 7 is a flowchart of an embodiment 6 of a power supply control method according to the present application;

FIG. 8 is a flowchart of an embodiment 7 of a power supply control method according to the present application;

fig. 9 is a schematic diagram of a load side and a power supply module in embodiment 7 of a power supply control method according to the present application;

fig. 10 is a flowchart of an embodiment 8 of a power supply control method provided by the present application;

FIG. 11 is a schematic diagram of a load side and a power supply module in embodiment 8 of a power supply control method according to the present application;

FIG. 12 is a flowchart of an embodiment 9 of a power supply control method according to the present application;

FIG. 13 is a flowchart of an embodiment 10 of a power supply control method provided by the present application;

FIG. 14 is a flowchart of an embodiment 11 of a power supply control method according to the present application;

FIG. 15 is a flowchart of an embodiment 12 of a power supply control method provided by the present application;

FIG. 16 is a flowchart of an embodiment 13 of a power supply control method according to the present application;

FIG. 17 is a flowchart of an embodiment 14 of a power supply control method provided by the present application;

FIG. 18 is a flowchart of an embodiment 15 of a power supply control method according to the present application;

fig. 19 is a schematic structural diagram of an embodiment of a power supply control device provided by the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

As shown in fig. 1, a flowchart of an embodiment 1 of a power supply control method according to the present application is provided, and the method is applied to an electronic device, and includes the following steps:

step S101: monitoring the running state of the electronic equipment;

in the application, the output voltage of the power supply module of the electronic equipment is adjusted based on different running states of the electronic equipment so as to reduce the load power consumption of the electronic equipment.

Wherein the operating state of the electronic device is monitored, the operating state being related to the power consumption requirement of the load side of the electronic device.

For example, when the electronic device is in a normal working state, the power consumption requirement of the load side is greater than the power consumption requirement when the electronic device is in a shutdown state.

In the following embodiments, specific implementation manners for monitoring the operation states of the electronic devices will be described in detail, which will not be described in detail in this embodiment.

Step S102: and if the electronic equipment enters a shutdown state, controlling the output voltage of a power supply module of the electronic equipment to be reduced to a target output voltage so as to reduce the electric quantity provided by the power supply module to the load side of the electronic equipment.

Specifically, the power supply module may be a functional module such as PSU (power supply unit, power supply device component) in the electronic device, which is capable of supplying power to a load of the electronic device.

The power-off state of the electronic device refers to an S6 state or an S5 state of the electronic device in six different working states of ACPI (AdvancedConfiguration and Power Management Interface ), and in the power-off state, all hardware devices in the electronic device are turned off, but the electronic device is still connected to an external power supply, and a connection line between the electronic device and the external power supply is not disconnected.

When the electronic equipment enters a shutdown state, the output voltage of a power supply module of the electronic equipment in the prior art is kept unchanged.

If the electronic device is turned off, loads such as a fan, HDD (Hard Disk drive), PCIe (Peripheral Component Interconnect-Express, peripheral component interconnect standard) slot, and the like do not need to be powered, and therefore, the amount of power required on the load side of the electronic device is smaller than that required on the operating state.

Specifically, the power supply module supplies less power to the load side at the second output voltage than at the first output voltage in a unit time, and therefore, the power supplied to the load side by the power supply module can be reduced by reducing the output voltage of the power supply module.

In specific implementation, during normal operation of the electronic device, the output voltage of the power supply module is maintained at 12V (volts), and when the electronic device enters a shutdown state, the output voltage of the power supply module is reduced by about 10V.

It should be noted that, because the input voltage of the D2D step-down line is higher than the output voltage, the closer the input voltage is to the output voltage, the higher the efficiency is, and the output voltage of the power supply module is reduced, which is equivalent to the reduction of the input voltage of the D2D step-down line of the electronic device motherboard, the efficiency of the D2D step-down line is increased, the electric energy loss of the D2D step-down line is reduced, and the energy consumption of the electronic device in the shutdown state is reduced.

In the following embodiments, a process of reducing the output voltage of the power supply module of the control electronic device to the target output voltage will be described in detail, which is not described in detail in the present embodiment.

In summary, the power supply control method provided in this embodiment includes: monitoring the running state of the electronic equipment; and if the electronic equipment enters a shutdown state, controlling the output voltage of a power supply module of the electronic equipment to be reduced to a target output voltage so as to reduce the electric quantity provided by the power supply module to the load side of the electronic equipment. In this embodiment, the amount of electricity output to the load side by the power supply module is related to the output voltage thereof, the running state of the electronic device is monitored, and when the electronic device enters the power-off state, the output voltage of the power supply module of the electronic device is controlled to be reduced to the target output voltage, so that the amount of electricity provided to the load side by the power supply module is reduced, and the power consumption of the electronic device in the power-off state is reduced.

As shown in fig. 2, a flowchart of an embodiment 2 of a power supply control method provided by the present application includes the following steps:

step S201: monitoring output current and/or output power of a power supply module of electronic equipment through a first control chip in the power supply module;

The power supply module of the electronic equipment is internally provided with a first control chip, the first control chip is used for monitoring the current/power and the like of the power supply module, the current comprises input current and output current, and the power comprises input power, output power and the like.

In the running process of the electronic equipment, the power supply module supplies power to the electronic equipment, and the first control chip in the power supply module can monitor the output current and/or the output power of the power supply module according to a stipulated period or in real time so as to determine the running state of the electronic equipment.

In a specific implementation, the first control chip may be a housing IC (Integrated Circuit) chip disposed in the power supply module.

When the electronic equipment normally operates, the output current of the electronic equipment is larger than a first threshold value, and the output power of the electronic equipment is larger than a second threshold value.

For example, the first threshold may be 0.1A (amperes).

The values of the first threshold and the second threshold can be set according to actual conditions, and the values of the first threshold and the second threshold are not limited in the application.

When the electronic equipment normally operates, various loads of the electronic equipment such as a fan, an HDD, a PCIe slot and the like all need larger electric quantity, so that the output current and/or the output power of the power supply module are larger.

When the electronic equipment enters a shutdown state, the load of the electronic equipment does not need to be powered, and the output current and the output power of the electronic equipment can be reduced.

Specifically, in this embodiment, whether the electronic device enters a shutdown state is determined based on the output current and/or the output power of the power supply module in the electronic device.

Step S202: if the output current is smaller than a first threshold value and/or the output power is smaller than a second threshold value, determining that the electronic equipment enters a shutdown state;

if the output current of the power supply module is smaller than a first threshold value and/or the output power is smaller than a second threshold value, determining that the electronic equipment enters a shutdown state; otherwise, the electronic device does not enter a shutdown state, is in a working state and the like.

Step S203: and if the electronic equipment enters a shutdown state, controlling the output voltage of a power supply module of the electronic equipment to be reduced to a target output voltage so as to reduce the electric quantity provided by the power supply module to the load side of the electronic equipment.

The step S203 is identical to the corresponding step in embodiment 1, and will not be described in detail in this embodiment.

In summary, the power supply control method provided in this embodiment includes: and monitoring the output current and/or the output power of the power supply module through a first control chip in the power supply module of the electronic equipment, and determining that the electronic equipment enters a shutdown state if the output current is smaller than a first threshold value and/or the output power is smaller than a second threshold value. In this embodiment, a first control chip is disposed in a power supply module of an electronic device, and the first control chip in the power supply module is used to detect output current and/or output power of the power supply module, so as to determine a state of the electronic device based on information detected by the first control chip, and if the output current is less than a first threshold value and/or the output power is less than a second threshold value, determine that the electronic device enters a shutdown state, and can quickly determine whether the electronic device enters the shutdown state.

As shown in fig. 3, a flowchart of an embodiment 3 of a power supply control method provided by the present application includes the following steps:

step S301: identifying a signal from a load side of the electronic device;

the signal transmission path is arranged between the device for executing the method and the load side of the electronic equipment.

The load side of the electronic device sends a signal to a device executing the method.

Specifically, each signal on the load side is identified, and the function of the signal is determined.

The signal on the load side is a signal for controlling a device or a module on the load side, and specifically may be a control signal transmitted by a system on the load side.

Step S302: if a mode switching signal representing that the load side enters a non-working mode is obtained, determining that the electronic equipment enters a shutdown state;

if the signal from the load side is a mode switching signal for controlling the load side to enter a non-working mode, the signal indicates that the load side enters the non-working mode from the working mode, the electronic equipment is switched from the working state to the shutdown state, and the power demand of the load side of the electronic equipment is reduced.

For example, the mode switching signal is a deep_slp signal for controlling the system to be turned off, and the system to be turned off is determined based on the deep_slp signal, and the electronic device enters a turned-off state.

Step S303: and if the electronic equipment enters a shutdown state, controlling the output voltage of a power supply module of the electronic equipment to be reduced to a target output voltage so as to reduce the electric quantity provided by the power supply module to the load side of the electronic equipment.

The step S303 is identical to the corresponding step in embodiment 1, and is not described in detail in this embodiment.

In summary, the power supply control method provided in this embodiment includes: and identifying a signal from a load side of the electronic equipment, and determining that the electronic equipment enters a shutdown state if a mode switching signal representing that the load side enters a non-working mode is obtained. In this embodiment, a signal on a load side of an electronic device is identified, if a mode switching signal representing that the load side enters a non-working mode is obtained, it is determined that the load side of the electronic device enters the non-working mode, and the electronic device enters a shutdown state, and whether the electronic device enters the shutdown state can be determined quickly only by monitoring according to the load side signal of the electronic device.

As shown in fig. 4, a flowchart of an embodiment 4 of a power supply control method provided by the present application includes the following steps:

step S401: monitoring the running state of the electronic equipment;

The step S401 is identical to the corresponding step in embodiment 1, and is not described in detail in this embodiment.

Step S402: and if the electronic equipment enters a shutdown state, controlling the frequency and/or the duty ratio of the pulse modulation signal in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage.

In an implementation, an electronic device enters a power-off state, a load of the device is very light, a power supply module of the electronic device enters a hiccup mode (burst mode), and a cluster of Pulse Width Modulation (PWM) pulse signals are sent out at intervals. In this process, the power consumption is mainly switching loss (switching loss).

In the application, if the electronic equipment enters a shutdown state, the frequency and/or the duty ratio of the pulse modulation signal in the power supply module are controlled to reduce the output voltage of the power supply module.

Specifically, the frequency of the pulse modulation signal is reduced, so that the frequency of the pulse signal sent by the power supply module in unit time is less; and/or the duty ratio is adjusted to be low, so that the power supply module generates power for a period of time to be shorter, and the power generated by the pulse modulation signal is reduced.

Specifically, the output voltage of the power supply module is reduced by adjusting the frequency and/or the duty ratio of the pulse modulation signal, so that the electric quantity provided by the power supply module to the load side of the electronic equipment is reduced.

In summary, the power supply control method provided in this embodiment includes: and controlling the frequency and/or the duty ratio of the pulse modulation signal in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage. In this embodiment, the purpose of reducing the output voltage of the power supply module is achieved by adjusting the frequency and/or the duty ratio of the pulse modulation signal of the power supply module, and the adjustment mode is simple and easy.

As shown in fig. 5, a flowchart of an embodiment 5 of a power supply control method provided by the present application includes the following steps:

step S501: monitoring the running state of the electronic equipment;

the step S501 is identical to the corresponding step in embodiment 1, and will not be described in detail in this embodiment.

Step S502: and if the electronic equipment enters a shutdown state, controlling the resistance value of a target voltage dividing resistor in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage.

The resistance value of the target voltage-dividing resistor can be adjusted in a mode that the target voltage-dividing resistor is short-circuited or released; when the target voltage-dividing resistor is a sliding resistor, the resistance of the target voltage-dividing resistor may be adjusted to 0 to the maximum resistance.

The voltage dividing resistor in the power supply module is used for dividing the output voltage of the power supply module, and the aim of adjusting the output voltage is fulfilled by controlling the resistance value of the target voltage dividing resistor.

Specifically, the resistance of the voltage dividing resistor is controlled, so that the output voltage of the power supply module is reduced to the target output voltage, and the electric quantity provided by the power supply module to the load side of the electronic equipment is reduced.

Specifically, the resistance value of the target voltage dividing resistor in the power supply module is controlled, and the resistance value comprises at least one of the following components:

And if a mode switching signal representing that the load side enters a non-working mode is obtained, the mode switching signal is given to a target voltage dividing circuit in the power supply module so as to increase the resistance value of the target voltage dividing circuit in the target voltage dividing circuit.

And the resistance value of the target voltage dividing circuit in the target voltage dividing circuit is increased, so that the output voltage of the power supply module is reduced, and the electric quantity provided by the power supply module to the load side of the electronic equipment is reduced.

Specifically, the first control chip monitors that the output current of the power supply module is smaller than a first threshold value and/or the output power of the power supply module is smaller than a second threshold value, determines that the electronic equipment enters a shutdown state, and correspondingly, sends a first logic control signal to a target voltage dividing circuit of the power supply module so as to realize adjustment of the increase of the resistance value of a target voltage dividing resistor in the target voltage dividing circuit, so that the output voltage of the power supply module is reduced.

In a specific implementation, the first control chip is provided with a dedicated pin (such as a burst pin of a home keeper IC) connected to a specific signal pin of a target voltage dividing circuit of the power supply module, where the dedicated pin is configured to send a logic control signal to the specific signal pin of the target voltage dividing circuit, so that the target voltage dividing circuit adjusts a resistance value of a target voltage dividing resistor.

Specifically, if a mode switching signal that the load side enters a non-working mode is obtained, it is determined that the electronic equipment enters a shutdown state, and the mode switching signal is correspondingly sent to a target voltage dividing circuit of the power supply module, so that the target voltage dividing circuit increases the resistance value of a target voltage dividing resistor in the target voltage dividing circuit.

In an implementation, the mode switching signal sent by the load side is connected to a specific signal pin of a target voltage dividing circuit of the power supply module, and if the mode switching signal is generated by the load side, the mode switching signal is also sent to the specific signal pin, so that the target voltage dividing circuit adjusts the resistance value of the target voltage dividing resistor.

In specific implementation, the target voltage dividing circuit sets a reference voltage, adjusts the output voltage of the power supply module through the reference voltage and the target voltage dividing resistor to reach a target output voltage, and takes the target output voltage output by the target voltage dividing circuit as the actual output voltage of the power supply module.

As shown in fig. 6, a schematic diagram of a target voltage dividing circuit is shown, in which a power supply module uses PSU, and the target voltage dividing circuit includes voltage dividing resistors R1-R3, a switch Q1 and a comparator 601. The psu_vo end of the target voltage-dividing circuit receives the output voltage Vo of the power supply module, and the vo_adj end of the target voltage-dividing circuit controls the switch Q1 to be turned on and off so as to realize that the control resistor R3 is released or short-circuited. Wherein, the vo_FB is taken as the output voltage of the target voltage dividing circuit. One input end of the comparator inputs the reference voltage Vref, the other input end inputs the vo_FB, and the output end of the comparator feeds back and controls the output voltage Vo of the power supply module.

The comparator compares the input reference voltage Vref with the vo_FB, and performs feedback adjustment on the output voltage Vo of the power supply module based on the comparison result to form feedback line closed-loop control until the vo_FB is the same as the Vref, vo_FB=Vref, PSU_vo=Vref (R1/(R2+R3) +1).

Specifically, the feedback adjustment signal is sent to the control IC of the PSU, so that the control IC of the PSU adjusts the output voltage until the output voltage is stable, at which time the voltage of vo_fb is the same as the reference voltage Vref.

In the present schematic diagram, the switch Q1 is a switching tube, and the vo_adj end is connected to the first control chip of the power supply module, so as to receive a control signal sent by the burst pin of the first control chip; and can also be connected to a system on the load side, which receives a mode switch signal (e.g., DEEP SLP signal) when the system is sending the mode switch signal. Wherein the control signal sent by the burst pin is a LOW signal, the deep_slp signal is also a LOW signal, when the vo_adj receives the LOW signal, the Q1 is not enabled (OFF), the R3 is released, otherwise, the Q1 is enabled (ON), and the R3 is shorted.

Where vo_adj is LOW, Q1FF, R3 is released:

PSU_Vo＝Vref*(R1(R1/R2+1))；

where vo_adj is HIGH, Q1ON, R3 is shorted:

PSU_Vo＝Vref*(R1/(R2+R3)+1)。

The reference voltage Vref is an internal reference voltage, typically a fixed value, such as 2.5V.

In the target voltage dividing circuit of fig. 6, the output voltage of the power supply module is adjusted by controlling the Q1 through the signal at the vo_adj end. In specific implementation, the PSU 12V output voltage is changed into 9.4V through the target voltage dividing circuit, and the input power is reduced by about 70mW in the shutdown state of the electronic equipment system.

In summary, the power supply control method provided in this embodiment includes: and controlling the resistance value of a target voltage dividing resistor in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage. In this embodiment, the target voltage dividing circuit is set in the power supply module, and the purpose of controlling the output voltage of the power supply module to be reduced to the target output voltage can be achieved by controlling the resistance value of the target voltage dividing resistor in the target voltage dividing circuit, only one voltage dividing circuit is required to be set, and the hardware of the power supply module is changed less, so that the power supply module is easy to implement.

As shown in fig. 7, a flowchart of an embodiment 6 of a power supply control method provided by the present application includes the following steps:

step S701: monitoring the running state of the electronic equipment;

The step S701 is identical to the corresponding step in embodiment 1, and is not described in detail in this embodiment.

Step S702: and if the electronic equipment enters a shutdown state, controlling the working state of a power supply unit in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage.

The output voltage of the power supply module is reduced, so that the electric quantity provided by the power supply module to the load side of the electronic equipment is reduced.

Wherein, be provided with a plurality of power supply unit in the power supply module, power supply unit has operating condition or unoperated state.

When the power supply unit is in a working state, the power supply unit can participate in electric energy conversion and output electric energy; when the power supply unit is in a non-working state, the power supply unit cannot participate in electric energy conversion and does not output electric energy.

The more power supply units participating in the electric energy conversion in the power supply module, the more electric energy the power supply module can output, and the larger the output voltage; otherwise the smaller the output voltage.

Specifically, if the electronic equipment is determined to enter a shutdown state, the working state of part of power supply units in the power supply module is controlled to be switched to a non-working state.

For example, the power that each power supply unit can convert is the same, and correspondingly, based on the difference between the target output voltage and the current output voltage, the number of power supply units reserved as working states is determined, and the rest power supply units are switched to non-working states.

When the electronic equipment is in a working state, all power supply units of the power supply module are in a working state, if the electronic equipment enters a shutdown state, the required electric quantity of a load of the electronic equipment is reduced, a target output voltage corresponding to the required electric quantity of the load side can be determined first, and part of power supply units are switched into a non-working state according to the target output voltage, so that the output voltage of the power supply module is reduced, and the electric quantity of the load side of the electronic equipment provided by the power supply module is reduced.

In summary, the power supply control method provided in this embodiment includes: and controlling the working state of a power supply unit in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage. In this embodiment, by controlling the working states of each power supply unit in the power supply module, a part of the power supply units are switched to a non-working state, the output voltage of the power supply module is reduced to the target output voltage, and the purpose of controlling the output voltage of the working module can be achieved by controlling the working states of each power supply unit in the power supply module, so that the control mode is simple and easy to implement.

As shown in fig. 8, a flowchart of an embodiment 7 of a power supply control method provided by the present application includes the following steps:

Step S801: monitoring the running state of the electronic equipment;

the step S801 is identical to the corresponding step in embodiment 6, and will not be described in detail in this embodiment.

Step S802: if the electronic equipment enters a shutdown state, processing a signal representing the shutdown state into at least one first driving signal based on the association relation between a load on a load side and a power supply unit in the power supply module, and controlling the working state of the first power supply unit corresponding to the load by using the first driving signal.

And the working state of the first power supply unit corresponding to the load is controlled by the first driving signal, so that the output voltage of the power supply module is reduced, and the electric quantity provided by the power supply module to the load side of the electronic equipment is reduced.

The power supply module is internally provided with a plurality of power supply units, and each load on the load side is powered by the corresponding power supply unit.

Any load can be powered by one or more fixed power supply units, one power supply unit can supply power to one or more loads, and the association relation between the loads and the power supply units can be set according to actual conditions, so that the application is not limited.

For example, the load a on the load side is supplied with power by the power supply unit a, and the load B on the load side is supplied with power by the power supply unit B.

It should be noted that, the association relationship between the load and the power supply unit may be one-to-one, or may be a one-to-one or one-to-many relationship, and the association relationship between the load and the power supply unit is set according to the actual situation in the implementation, which is not limited in the specific form of the association relationship in the present application.

And based on the fact that the electronic equipment enters a shutdown state, at least part of loads on the load side of the electronic equipment are stopped, determining that a power supply unit corresponding to the load is a first power supply unit based on the association relation between the loads and the power supply units, and processing a signal representing that the electronic equipment enters the shutdown state into at least one first driving signal, wherein the first driving signal is a signal for controlling the first power supply unit corresponding to the load to switch the working state.

In a specific implementation, the signal representing the shutdown state is used for controlling the electronic equipment to enter the shutdown state, the electronic equipment enters the shutdown state and corresponds to stopping at least part of loads on a load side, determining a load identifier of the stopped load, determining specific information such as an identifier/address of a power supply unit corresponding to the load identifier based on the association relation, and generating a first driving signal containing the specific information of the power supply unit so as to control the working state of the power supply unit.

The signal for representing the electronic equipment entering the shutdown state can be specifically generated based on the triggering of the electronic equipment entering the shutdown state, or can be a signal for controlling the electronic equipment to enter the shutdown state.

For example, the signal may be a logic control signal generated by the first control chip in the power supply module when the output current of the power supply module is smaller than the first threshold value and/or the output power is smaller than the second threshold value, or may be a mode switching signal for controlling the load side to enter the non-working mode, or the like.

As shown in fig. 9, a schematic diagram of a load side and a power supply module is shown, where the load side 901 includes a plurality of loads, the power supply module 902 includes a plurality of power supply units, in this schematic diagram, the loads are represented by 3, the power supply units are represented by 3, each load is associated with one power supply unit, and each power supply unit supplies power to its associated load.

In summary, the power supply control method provided in this embodiment includes: and processing the signal representing the shutdown state into at least one first driving signal based on the association relation between the load of the load side and the power supply unit in the power supply module, so as to control the working state of the first power supply unit corresponding to the load by utilizing the first driving signal. In this embodiment, if the electronic device enters a power-off state, a signal representing the power-off state is processed into at least one first driving signal based on the association between the load on the load side and the power supply unit in the power supply module, so as to control the working state of the first power supply unit corresponding to the load, thereby realizing switching at least part of the power supply units in the power supply module into a non-working state, reducing the output voltage of the power supply module, realizing controlling the working state of the associated power supply unit based on the stopped load, realizing accurate control of the power supply module, and reducing the energy consumption of the power supply module in the power-off state of the electronic device.

As shown in fig. 10, a flowchart of an embodiment 8 of a power supply control method provided by the present application includes the following steps:

step S1001: monitoring the running state of the electronic equipment;

the step S1001 is identical to the corresponding step in embodiment 6, and will not be described in detail in this embodiment.

Step S1002: if the electronic equipment enters a shutdown state, processing a signal representing the shutdown state into at least one first driving signal and at least one second driving signal based on the association relation between a load on a load side and a power supply unit in the power supply module, so as to control the working state of a first power supply unit corresponding to the load by using the first driving signal and control the working state of a second power supply unit corresponding to the load by using the second driving signal.

The first driving signal controls the working state of a first power supply unit corresponding to the load, and the second driving signal controls the working state of a second power supply unit corresponding to the load, so that the output voltage of the power supply module is reduced, and the electric quantity provided by the power supply module to the load side of the electronic equipment is reduced.

The primary side and the secondary side of the power supply module are respectively provided with a plurality of power supply units, and the first power supply unit of the primary side and the second power supply unit of the secondary side are matched to provide electric energy for the associated load of the load side.

Any load can be powered by one or more fixed primary power supply units and secondary power supply units, the primary power supply units and the secondary power supply units can supply power to one or more loads, and the association relation between the loads and the power supply units can be set according to actual conditions, so that the application is not limited.

In a specific implementation, one primary power supply unit can correspond to one or more loads, and one secondary power supply unit can correspond to one or more loads.

And based on the fact that the electronic equipment enters a shutdown state, at least part of loads on a load side of the electronic equipment are stopped, determining that power supply units corresponding to the loads are a first power supply unit on the primary side and a second power supply unit on the secondary side based on the association relation between the loads and the power supply units on the primary side, processing signals representing the electronic equipment entering the shutdown state into first driving signals and second driving signals, wherein the first driving signals are used for controlling the first power supply units corresponding to the loads to switch working states, and the second driving signals are used for controlling the second power supply units to switch the working states.

In a specific implementation, the signal representing the shutdown state is used for controlling the electronic equipment to enter the shutdown state, the electronic equipment enters the shutdown state and corresponds to stopping at least part of loads on a load side, determining load identifications of the stopped loads, determining specific information such as identifications/addresses of a first power supply unit and a second power supply unit corresponding to the load identifications based on the association relation, wherein the generated first driving signal comprises the specific information of the first power supply unit so as to control the working state of the first power supply unit, and the generated second driving signal comprises the specific information of the second power supply unit so as to control the working state of the second power supply unit.

As shown in fig. 11, a schematic diagram of a load side and a power supply module is shown, the load side 1101 includes a plurality of loads, the power supply module 1102 includes a primary side power supply unit and a secondary side power supply unit, in the present schematic diagram, the loads are represented by 3 as loads 1-3, the primary side power supply unit is represented by 3 as power supply units 1-3, the secondary side power supply unit is represented by 2 as power supply units 4-5, the load 1 is associated with the power supply units 1, 4, the load 2 is associated with the power supply units 2, 4, and the load 3 is associated with the power supply units 3, 5. When the load 1 is stopped, the control power supply unit 1 is switched from the operation mode to the non-operation mode, when the load 3 is stopped, the control power supply units 3 and 5 are switched from the operation mode to the non-operation mode, and when the loads 1 and 2 are stopped, the control power supply units 1, 2 and 4 are switched from the operation mode to the non-operation mode.

In summary, the power supply control method provided in this embodiment includes: and processing the signal representing the shutdown state into at least one first driving signal and at least one second driving signal based on the association relation between the load on the load side and the power supply units in the power supply module, so as to control the working state of the first power supply unit corresponding to the load by using the first driving signal and the working state of the second power supply unit corresponding to the load by using the second driving signal. In this embodiment, the load on the load side has an association relationship with the primary power supply unit and the secondary power supply unit in the power supply module, if the electronic device enters a power-off state, a signal representing the power-off state is processed into at least one first driving signal and one second driving signal based on the association relationship between the load on the load side and the primary power supply unit and the secondary power supply unit in the power supply module, so as to control the working states of the primary power supply unit and the secondary power supply unit corresponding to the load, realize that at least part of the power supply units in the power supply module are switched into a non-working state, reduce the output voltage of the power supply module, realize that the working states of the power supply units associated based on the stopped load control, realize that the power supply module is accurately controlled, and reduce the energy consumption of the power supply module in the power-off state of the electronic device.

As shown in fig. 12, a flowchart of an embodiment 9 of a power supply control method provided by the present application includes the following steps:

step S1201: monitoring the running state of the electronic equipment;

the step S1201 corresponds to the corresponding step in embodiment 1, and is not described in detail in this embodiment.

Step S1202: and if the electronic equipment enters a shutdown state, controlling at least one first power supply unit at the primary side in the power supply module to switch from a first working state to a second working state, so as to reduce the output voltage of the power supply module by reducing the number of the first power supply units in the first working state.

The power supply module includes a primary power supply unit and a secondary power supply unit, and in this embodiment, the output voltage of the power supply module is controlled only for the working state of the primary power supply unit.

Specifically, the primary side power supply unit in the power supply module has a first working state and a second working state. The first working state is a state that the power supply unit participates in electric energy conversion, and the second working state is a state that the power supply unit does not participate in electric energy conversion.

In a specific implementation, the power conversion capability of the first power supply unit of the primary side is related to the number of the primary power supply units participating in power conversion, and the higher the number of the primary power supply units participating in power conversion is, the higher the output voltage of the power supply module is, otherwise, the lower the output voltage of the power supply module is.

In specific implementation, the working state of the power supply unit can be divided according to actual situations, and the above content of the application is only for explanation and not limited to the working state.

Specifically, the number of primary side first power supply units required by the output voltage of the power supply module can be determined according to the overall voltage condition required by the load side, and more than required first power supply units in the primary side are controlled to be switched from a first working state to a second working state; and the first power supply unit corresponding to the stopped load is also determined according to the association relation between the load and the first power supply unit, and the first power supply unit corresponding to the stopped load is controlled to be switched from the first working state to the second working state, so that the first power supply unit does not participate in electric energy conversion any more, the number of primary side power supplies which participate in electric energy conversion in the power supply module is reduced, and the purpose of reducing the output voltage of the power supply module is realized.

In summary, the power supply control method provided in this embodiment includes: and controlling at least one first power supply unit at the primary side in the power supply module to switch from a first working state to a second working state, so as to reduce the output voltage of the power supply module by reducing the number of the first power supply units in the first working state. In this embodiment, based on the electronic device entering the power-off state, the power supply unit on the primary side in the power supply module is controlled to switch the working state, so as to reduce the number of the first power supply units in the first working state, so as to reduce the output voltage of the power supply module, and the control mode is easy to implement.

As shown in fig. 13, a flowchart of an embodiment 10 of a power supply control method according to the present application includes the following steps:

step S1301: monitoring the running state of the electronic equipment;

the step S1301 corresponds to the corresponding step in embodiment 1, and is not described in detail in this embodiment.

Step S1302: if the electronic equipment enters a shutdown state, controlling at least one first power supply unit at the primary side in the power supply module to switch from a first working state to a second working state, and controlling at least one second power supply unit at the secondary side in the power supply module to switch from the first working state to the second working state, so that the output voltage of the power supply module is reduced by reducing the number of the first power supply unit and the second power supply unit in the first working state.

The power supply module includes a primary power supply unit and a secondary power supply unit, and in this embodiment, the output voltage of the power supply module is controlled and implemented specifically for the working states of the primary power supply unit and the secondary power supply unit.

Specifically, the power supply unit in the power supply module has a first working state and a second working state. The first working state is a state that the power supply unit participates in electric energy conversion, and the second working state is a state that the power supply unit does not participate in electric energy conversion.

In the implementation, the primary side power supply unit is matched with the secondary side power supply unit, so that the purpose of converting electric energy by the power supply module is achieved.

Specifically, the power conversion capability of the first power supply unit at the primary side is related to the number of the primary power supply units participating in power conversion, the power conversion capability of the second power supply unit at the secondary side is related to the number of the secondary power supply units participating in power conversion, and the more the numbers of the primary power supply units and the secondary power supply units participating in power conversion are, the higher the output voltage of the power supply module is, otherwise, the lower the output voltage of the power supply module is.

Specifically, the number of primary side first power supply units and secondary side second power supply units required by the output voltage of the power supply module can be determined according to the overall voltage condition required by the load side, more than required first power supply units in the primary side are controlled to be switched from a first working state to a second working state, and more than required second power supply units in the secondary side are controlled to be switched from the first working state to the second working state; and the first power supply unit and the second power supply unit corresponding to the stopped load can be determined according to the association relation between the load and the first power supply unit and the second power supply unit, and the first power supply unit and the second power supply unit corresponding to the stopped load are controlled to be switched from the first working state to the second working state, so that the first power supply unit and the second power supply unit do not participate in electric energy conversion any more, the number of primary side power supply units and secondary side power supply units which participate in electric energy conversion in the power supply module is reduced, and the purpose of reducing the output voltage of the power supply module is realized.

In summary, the power supply control method provided in this embodiment includes: and controlling at least one first power supply unit at the primary side in the power supply module to switch from a first working state to a second working state, and controlling at least one second power supply unit at the secondary side in the power supply module to switch from the first working state to the second working state, so that the output voltage of the power supply module is reduced by reducing the number of the first power supply units and the second power supply units in the first working state. In this embodiment, based on the electronic device entering a power-off state, the first power supply unit on the primary side and the second power supply unit on the secondary side in the power supply module are controlled to switch working states, so as to reduce the number of the first power supply unit and the second power supply unit in the first working state, so as to reduce the output voltage of the power supply module, and the control mode is easy to implement.

As shown in fig. 14, a flowchart of an embodiment 11 of a power supply control method provided by the present application includes the following steps:

step S1401: monitoring the running state of the electronic equipment;

the step S1401 is identical to the corresponding step in embodiment 1, and will not be described in detail in this embodiment.

Step S1402: if the electronic equipment enters a shutdown state, obtaining hardware configuration information of a load side of the electronic equipment;

if the electronic equipment is determined to enter the shutdown state, determining the target output voltage required by the electronic equipment in the shutdown state.

Specifically, hardware configuration information of the load side of the electronic equipment is obtained.

In the implementation, the hardware configuration information of the electronic equipment at the load side is recorded in advance, and the hardware configuration information of the load side is searched according to the record when the electronic equipment is determined to enter the shutdown state; or triggering and detecting the hardware with electricity maintained on the load side of the electronic equipment when the electronic equipment enters a shutdown state to obtain hardware configuration information.

The hardware configuration information includes motherboard information of the electronic device, and the like.

Step S1403: and determining a first output voltage of the power supply module when the electronic equipment is in a shutdown state based on the hardware configuration information, so as to reduce the output voltage of the power supply module to the target output voltage based on the first output voltage.

The first output voltage may be the lowest voltage for determining that the motherboard is kept powered, or the lowest input voltage that the motherboard can accept.

Specifically, the hardware configuration information is information of a load side motherboard of the electronic device, and according to the motherboard information, a minimum voltage for maintaining the motherboard powered on or a minimum input voltage acceptable by the motherboard can be determined.

Specifically, the first output voltage may be set as the target output voltage, or an output voltage determined from the first output voltage and the line loss voltage on the load side may be set as the target output voltage.

Wherein, according to the output voltage of the power supply module is reduced to the target output voltage, when the electronic equipment enters a shutdown state, the output voltage of the power supply module only needs to maintain the power consumption requirement of the load,

in summary, the power supply control method provided in this embodiment includes: obtaining hardware configuration information of a load side of electronic equipment, and determining a first output voltage of the power supply module when the electronic equipment is in a shutdown state based on the hardware configuration information so as to reduce the output voltage of the power supply module to the target output voltage based on the first output voltage. In this embodiment, based on hardware configuration information of a load side of the electronic device, a first output voltage of the power supply module in a shutdown state of the electronic device is determined, and based on the first output voltage, a target output voltage is determined, where the first output voltage is a load electricity demand voltage, so that the power supply module output voltage only needs to maintain an electricity demand of the load.

As shown in fig. 15, a flowchart of an embodiment 12 of a power supply control method provided by the present application includes the following steps:

step S1501: monitoring the running state of the electronic equipment;

the step S1501 is identical to the corresponding step in the embodiment 1, and the description is omitted in this embodiment.

Step S1502: if the electronic equipment enters a shutdown state, obtaining hardware configuration information of a load side of the electronic equipment;

In the implementation, the hardware configuration information of the electronic equipment at the load side is recorded in advance, and the hardware configuration information of the load side is searched according to the record when the electronic equipment is determined to enter the shutdown state; or triggering and detecting the hardware of the load side of the electronic equipment for maintaining the power consumption requirement when the electronic equipment enters a shutdown state, so as to obtain the hardware configuration information.

Step S1503: and controlling the output voltage of the power supply module to be reduced to the target output voltage based on the hardware configuration information and the power supply loss information.

The power supply loss information is used for representing loss information of power output by the power supply module and transmitted to the load side.

The minimum voltage for maintaining the motherboard powered on or the minimum input voltage acceptable by the motherboard can be determined based on the hardware configuration information.

In order to maintain the power consumption of the load side hardware device, a first output voltage is determined based on the hardware configuration information, the first output voltage is the lowest voltage for maintaining the power of the main board or the lowest input voltage acceptable by the main board, and the power consumption information of the power transmission of the power output by the power supply module to the load side is further considered to determine the target output voltage required to be provided for the load side by the power supply module.

It should be noted that, the target output voltage is an output voltage obtained based on the first output voltage and the power supply loss information, and the power supply module outputs the target output voltage to ensure the power consumption requirement of the hardware at the load side when the electronic device is in the power-off state.

In summary, the power supply control method provided in this embodiment includes: and obtaining hardware configuration information of a load side of the electronic equipment, and controlling the output voltage of the power supply module to be reduced to the target output voltage based on the hardware configuration information and power supply loss information, wherein the power supply loss information is used for representing loss information of power transmission from the power supply even group to the load side. In this embodiment, based on hardware configuration information of a load side of the electronic device and loss information of power transmitted to the load side by the power supply module, a target output voltage of the power supply module in a shutdown state of the electronic device is determined, where the target output voltage considers power loss from the power supply module to the load side, and maintains a power consumption requirement of the load, so that power consumption of the electronic device in the shutdown state is ensured to be as low as possible.

As shown in fig. 16, a flowchart of an embodiment 13 of a power supply control method provided by the present application includes the following steps:

step S1601: monitoring the running state of the electronic equipment;

the step S1601 is identical to the corresponding step in embodiment 1, and is not described in detail in this embodiment.

Step S1602: if the electronic equipment enters a shutdown state, obtaining hardware use information of a load side of the electronic equipment;

Specifically, the hardware usage information of the load side is obtained, and the hardware is required to be maintained after the electronic device enters the power-off state.

For example, the hardware includes a display, a speaker (spaker), a hard disk, and the like.

If the electronic device enters a shutdown state, certain specific components need to be maintained in a use state, so that a part of voltage needs to be reserved for the components to be used, and the voltage of the components in the use state needs to be ensured.

Therefore, when the electronic equipment is determined to enter a shutdown state, the hardware use information of the load side is obtained, and a basis is provided for candidate determination of the voltage required by the load side.

Specifically, the hardware information that needs to be maintained when the electronic device enters the power-off state, the voltage of the hardware in the use state, and the like can be preset, and the output voltage that needs to be provided for the load side by the power supply module can be determined according to the set hardware information and the voltage of the hardware in the use state when the electronic device enters the power-off state.

Step S1603: and determining a second output voltage of the power supply module when the electronic equipment is in a shutdown state based on the hardware use information, so as to reduce the output voltage of the power supply module to the target output voltage based on the second output voltage.

The output voltage of the power supply module is reduced, so that the electric quantity of the load side of the electronic equipment provided by the power supply module is reduced.

The second output voltage may be a voltage required by the load side to maintain the hardware in use when the electronic device is in a power-off state.

Specifically, the second output voltage may be set as the target output voltage, or an output voltage determined from the second output voltage and the line loss voltage on the load side may be set as the target output voltage.

The method comprises the steps of determining a target output voltage (second output voltage or sum of the second output voltage and line loss voltage), controlling the output voltage of the power supply module to be reduced to the target output voltage, and reducing the output voltage of the power supply module as much as possible and reducing the electric energy provided by the power supply module to the load side on the premise of maintaining the power consumption requirement of hardware of which the load side needs to maintain a use state.

In summary, the power supply control method provided in this embodiment includes: and obtaining hardware use information of a load side of the electronic equipment, and determining a second output voltage of the power supply module when the electronic equipment is in a shutdown state based on the hardware use information so as to reduce the output voltage of the power supply module to the target output voltage based on the second output voltage. In this embodiment, based on the hardware usage information of the load side of the electronic device, a second output voltage corresponding to the voltage of some hardware of the power supply module, which needs to be in a usage state, is determined when the electronic device is in a shutdown state, and based on the second output voltage, a target output voltage is determined, where the second output voltage is a load power demand voltage, so that the power supply module output voltage only needs to maintain the power demand of the hardware of the load side in the usage state.

As shown in fig. 17, a flowchart of an embodiment 14 of a power supply control method provided by the present application includes the following steps:

step S1701: monitoring the running state of the electronic equipment;

the step S1701 is identical to the corresponding step in embodiment 1, and will not be described in detail in this embodiment.

Step S1702: if the electronic equipment enters a shutdown state, obtaining hardware configuration information and hardware use information of a load side of the electronic equipment;

In the present embodiment, the target output voltage is determined based on the hardware configuration information on the load side of the electronic device and the hardware usage information maintaining the usage state.

The hardware comprises main board information of the electronic equipment according to configuration information.

The hardware usage information includes hardware information that needs to maintain a usage state on a load side after the electronic device enters a shutdown state, where the hardware includes a display, a speaker (spin), a hard disk, and the like.

If the electronic device enters a shutdown state, certain specific components need to be maintained in the use state, so that a part of voltage needs to be reserved for the components to be used, the voltage of the components in the use state needs to be ensured, the lowest voltage of the main board needs to be maintained, a part of voltage needs to be reserved for the main board to be used, and the electricity consumption requirement of the main board needs to be ensured.

Step S1703: and determining a third output voltage of the power supply module when the electronic equipment is in a shutdown state based on the hardware configuration information and the hardware use information, so as to reduce the output voltage of the power supply module to the target output voltage based on the third output voltage.

The third output voltage is the lowest voltage/acceptable lowest input voltage for maintaining the power of the load side main board and the voltage required for maintaining the specific component in the use state.

Specifically, the third output voltage may be set as the target output voltage, or an output voltage determined from the third output voltage and the line loss voltage on the load side may be set as the target output voltage.

In summary, the power supply control method provided in this embodiment includes: and obtaining hardware configuration information and hardware use information of a load side of the electronic equipment, and determining a third output voltage of the power supply module when the electronic equipment is in a shutdown state based on the hardware configuration information and the hardware use information so as to reduce the output voltage of the power supply module to the target output voltage based on the third output voltage. In this embodiment, based on hardware configuration information of a load side of the electronic device and determining that the power supply module maintains certain hardware of the load side that needs to be in a use state when the electronic device is in a shutdown state, a corresponding third output voltage is determined, and a target output voltage is determined according to the third output voltage, where the target output voltage is a minimum power consumption requirement for maintaining the load side, so that power consumption of the electronic device in the shutdown state is ensured to be as low as possible.

As shown in fig. 18, a flowchart of an embodiment 15 of a power supply control method provided by the present application includes the following steps:

step S1801: monitoring the running state of the electronic equipment;

step S1802: if the electronic equipment enters a shutdown state, controlling the output voltage of a power supply module of the electronic equipment to be reduced to a target output voltage so as to reduce the electric quantity provided by the power supply module to a load side of the electronic equipment;

the steps S1801-1802 are identical to the corresponding steps in embodiment 1, and are not described in detail in this embodiment.

Step S1803: and in response to the electronic equipment directly entering a display mode from a shutdown state, controlling the output voltage of the power supply module to be increased from the target output voltage to a fourth output voltage, so that the display module of the electronic equipment can output the content to be displayed from the content source end.

The electronic equipment can only output display content from a content source end in the display mode.

The electronic device has a shutdown state and an operating state, wherein the operating state comprises a system operation mode and a display mode.

In the display mode, the electronic device is only used as a display to output the display content of the content source end.

Wherein the electronic device is in a system operation mode, which is a host and a display, which is both a content source and a display, the required voltage is higher relative to the voltage of the display mode.

For example, in the display mode, the electronic device is externally connected with a host, the host is used as a content source end, and display content of the host is displayed and output through the electronic device.

If the electronic device is in the display mode, the required voltage is the fourth output voltage, and the power supply module outputs the fourth output voltage to the electronic device, so that the display mode of the electronic device can provide enough electric energy.

The electronic equipment directly enters the display mode from the shutdown state, namely the electronic equipment enters the display mode under the condition of not starting up, only the display is available, at the moment, only the voltage serving as the display is needed to be provided for the electronic equipment, and the output voltage of the power supply module is controlled to be increased from the target output voltage to the fourth output voltage.

It should be noted that, the electronic device has a shutdown state and a working state, the working state has multiple modes, different states and different voltages required by different modes, the power supply module can provide corresponding output voltages, the output voltages are matched with the voltages required by the electronic device, the electric energy provided to the electronic device is ensured to be lower as much as possible on the premise of ensuring the voltages required by the electronic device, and the overall power consumption of the electronic device is reduced.

In summary, the power supply control method provided in this embodiment includes: and in response to the electronic equipment directly entering a display mode from a shutdown state, controlling the output voltage of the power supply module to be increased from the target output voltage to a fourth output voltage, so that the display module of the electronic equipment can output the content to be displayed from the content source end, and the electronic equipment can only output the display content from the content source end in the display mode. In this embodiment, the electronic device has multiple status modes, the voltages required by the different status modes are different, if the electronic device directly enters the display mode from the power-off status, the output voltage of the power supply module is controlled to be increased from the target output voltage required by the power-off status to the fourth output voltage required by the display mode, so that the display module of the electronic device can output the display content with the content source end.

Corresponding to the embodiment of the power supply control method provided by the application, the application also provides an embodiment of a device applying the power supply control method.

As shown in fig. 19, a schematic structural diagram of an embodiment of a power supply control device provided by the present application, where the device includes the following structures: a monitoring module 1901 and a control module 1902;

wherein, the monitoring module 1901 is used for monitoring the operation state of the electronic device;

the control module 1902 is configured to control, if the electronic device enters a power-off state, an output voltage of a power supply module of the electronic device to be reduced to a target output voltage, so that an amount of electricity provided by the power supply module to a load side of the electronic device is reduced.

Optionally, the monitoring module includes at least one of:

the monitoring unit is used for monitoring the output current and/or the output power of the power supply module through a first control chip in the power supply module of the electronic equipment, and determining that the electronic equipment enters a shutdown state if the output current is smaller than a first threshold value and/or the output power is smaller than a second threshold value;

and the identification unit is used for identifying a signal from the load side of the electronic equipment, and determining that the electronic equipment enters a shutdown state if a mode switching signal representing that the load side enters a non-working mode is obtained.

Optionally, the control module includes at least one of:

the first control unit is used for controlling the frequency and/or the duty ratio of the pulse modulation signal in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage;

the second control unit is used for controlling the resistance value of a target voltage dividing resistor in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage;

and the third control unit is used for controlling the working state of the power supply unit in the power supply module so as to reduce the output voltage of the power supply module to the target output voltage.

Optionally, the third control unit is configured to perform at least one of:

Optionally, the second control unit is configured to perform at least one of:

Optionally, the control module is configured to perform at least one of:

Optionally, the method further comprises:

the response module is used for responding to the electronic equipment to directly enter a display mode from a shutdown state, and controlling the output voltage of the power supply module to be increased from the target output voltage to a fourth output voltage, so that the display module of the electronic equipment can output the content to be displayed from the content source end, and the electronic equipment can only output the display content from the content source end in the display mode.

It should be noted that, for the functional explanation of each component structure in the power supply control device provided in this embodiment, please refer to the explanation in the foregoing method embodiment, and details are not described in this embodiment.

To sum up, the power supply control device provided in this embodiment includes: the monitoring module is used for monitoring the running state of the electronic equipment; and the control module is used for controlling the output voltage of the power supply module of the electronic equipment to be reduced to the target output voltage if the electronic equipment enters a shutdown state, so that the electric quantity provided by the power supply module to the load side of the electronic equipment is reduced. In this embodiment, the amount of electricity output to the load side by the power supply module is related to the output voltage thereof, the running state of the electronic device is monitored, and when the electronic device enters the power-off state, the output voltage of the power supply module of the electronic device is controlled to be reduced to the target output voltage, so that the amount of electricity provided to the load side by the power supply module is reduced, and the power consumption of the electronic device in the power-off state is reduced.

Corresponding to the embodiment of the power supply control method provided by the application, the application also provides the electronic equipment and the readable storage medium corresponding to the power supply control method.

Wherein, this electronic equipment includes: the power supply system comprises a power supply module, a load side and a power management controller arranged in the power supply module;

the power supply module is used for providing electric quantity for the load side; the power management controller executes the steps of the power supply control method described in any one of the above embodiments.

Specifically, the power supply module may be a group of power supply modules, or may be a group of power supply modules.

In a specific implementation, the set of power supply modules may be a set of PSUs.

The power supply modules can be connected in parallel or in series, and the connection mode of the power supply modules is not limited in the application.

If the output voltage of the power supply module is reduced, the output voltage of one group/groups of power supply modules is set to be 0, and the output voltage of the rest power supply modules is maintained, so that the purpose of reducing the overall output voltage of the power supply module is achieved.

The power supply control method for the electronic equipment is realized by referring to the embodiment of the power supply control method.

Wherein the readable storage medium has stored thereon a computer program which is invoked and executed by a power management controller to implement the steps of the power supply control method as set forth in any one of the preceding claims.

The computer program stored in the readable storage medium is executed to implement the power supply control method, and the embodiment of the power supply control method is referred to.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. The device provided in the embodiment corresponds to the method provided in the embodiment, so that the description is simpler, and the relevant points refer to the description of the method.

The previous description of the provided embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features provided herein.

Claims

1. A power supply control method comprising:

monitoring the running state of the electronic equipment;

2. The method of claim 1, the monitoring the operational status of the electronic device comprising at least one of:

3. The method of claim 1 or 2, wherein controlling the output voltage of the power supply module of the electronic device to decrease to a target output voltage comprises at least one of:

4. A method according to claim 3, wherein controlling the operating state of the power supply unit within the power supply module comprises at least one of:

5. The method of claim 3 or 4, wherein controlling the operating state of the power supply unit within the power supply module comprises at least one of:

6. A method according to claim 3, controlling the resistance of a target voltage dividing resistor within the power supply module, comprising at least one of:

7. The method of claim 1, wherein controlling the output voltage of the power module of the electronic device to decrease to a target output voltage comprises at least one of:

8. The method of claim 1, further comprising:

9. A power supply control device comprising:

10. An electronic device, comprising:

the power supply module is used for providing electric quantity for the load side; the power management controller performs the steps of the power supply control method as claimed in any one of claims 1 to 8.