CN115373508A - Method and device for adjusting output voltage of electronic equipment and its power supply - Google Patents

Abstract

The application provides electronic equipment and a method and a device for adjusting output voltage of a power supply of the electronic equipment, and belongs to the technical field of electronics. In the scheme provided by the application, the power supply can output a higher first voltage first, and the controller can control the output voltage of the power supply to be reduced to a second voltage when detecting that the under-voltage point of each first load is smaller than the voltage threshold. Because the second voltage is greater than or equal to the undervoltage point of each first load, the loss of the power supply in the electronic equipment can be effectively reduced on the premise of ensuring that the at least one first load can normally work.

Description

Method and device for adjusting output voltage of electronic equipment and its power supply

technical field

The present application relates to the field of electronic technology, in particular to a method and device for adjusting the output voltage of electronic equipment and its power supply.

Background technique

A server includes a power supply and a load, and the power supply is used to supply power to the load to drive the load to work. Loads in a server can generally be divided into two types, wherein the first type of load generally includes a network card and a baseboard management controller (baseboard management controller, BMC), etc., and the second type of load generally includes a processor, a memory, and a fan.

When the server is in the working mode, the power supplies in the server can respectively supply power to the two types of loads to drive the two types of loads to work. When the server is in a standby (standby) mode, the power supply stops supplying power to the second type of load, and only supplies power to the first type of load. Moreover, the output voltage of the power supply in the working mode and in the standby mode is the same, for example, both are 12 volts (V).

However, since the first type of load usually includes loads with a rated operating voltage less than 12V, the power supply continuously outputs a voltage of 12V in the working mode and the standby mode, which will cause high power loss.

Contents of the invention

The application provides a method and device for adjusting the output voltage of an electronic device and its power supply, which can solve the technical problem of high power loss in the electronic device.

In one aspect, an electronic device is provided, and the electronic device includes: a power supply, a controller, and at least one first load; the power supply is respectively connected to the controller and at least one first load; the power supply is used to output a first voltage; the a controller, configured to obtain the undervoltage point of each first load, and if the undervoltage point of each first load is less than a voltage threshold, control the output voltage of the power supply to a second voltage, wherein the second voltage less than the first voltage, and greater than or equal to the undervoltage point of each first load.

The controller can control the power supply to lower the output voltage to the second voltage when detecting that the undervoltage point of each first load is lower, that is, control the power supply to enter the energy-saving mode. Since the second voltage is greater than or equal to the undervoltage point of each first load, the loss of the power supply can be effectively reduced on the premise of ensuring that the at least one load can work normally.

Wherein, the first load needs a rated power supply voltage (also referred to as rated voltage) to ensure the operation of the first load, and the rated voltage is a voltage range. The undervoltage point of the first load may refer to the minimum value of the rated voltage of the first load, or may be lower than the minimum value of the rated voltage. Moreover, the undervoltage point of the first load may be a voltage value, or may also be a voltage range.

Optionally, each first load in the electronic device may report characteristic information such as the model, type and/or version of the first load to the controller, and the controller may determine the first load based on the characteristic information reported by the first load. The size of the undervoltage point of a load. For example, the corresponding relationship between the characteristic information of the load and the undervoltage point is pre-stored in the controller. After receiving the characteristic information reported by the first load, the controller can obtain the undervoltage point corresponding to the characteristic information of the first load from the corresponding relationship. pressure point.

Optionally, the controller may be a BMC, and the at least one first load may include a network card.

Optionally, the at least one first load may refer to a load in an electronic device that needs to monitor an undervoltage point. For example, if a certain load in the electronic equipment has different undervoltage points under different models, types or versions, this load is the first load that needs to monitor the undervoltage point. If the undervoltage point of a load in the electronic equipment is the same in different models, the undervoltage point in different types is the same, and the undervoltage point in different versions is also the same, then the load does not need to monitor the undervoltage. Correspondingly, the controller does not need to obtain the undervoltage point of the load.

It can be understood that the first load may include a functional chip and/or a power supply circuit for supplying power to the functional chip, and the undervoltage point of the first load may refer to the undervoltage point of the functional chip, or may refer to the power supply circuit the undervoltage point of the input voltage.

Optionally, the controller is configured to send a first instruction to the power supply to modify the value of the register in the power supply if the undervoltage point of each first load is less than the voltage threshold; the power supply is also configured to The value of the register regulates the output voltage from the first voltage to the second voltage.

Wherein, the voltage threshold may be a pre-stored voltage value in the controller, and the voltage threshold is smaller than the first voltage. The first instruction may be an inter-integrated circuit (I2C) instruction. The power supply may include a power control circuit and a DC/DC (direct current/direct current, DC/DC) converter, the power control circuit is respectively connected to the controller and the DC/DC converter, and the DC/DC converter is respectively connected to the control connected to at least one first load. The power control circuit can adjust the duty cycle and/or frequency of the driving signal for driving the DC/DC converter based on the modified register value to adjust the output voltage of the DC/DC converter to a second Voltage.

Optionally, the first instruction sent by the controller may be a hardware signal with a fixed level (for example, a low level). The power control circuit in the power supply can adjust the duty cycle and/or frequency of the driving signal used to drive the DC/DC converter based on the level change (for example, the level changes from high to low) of the pin connected to the controller , so as to adjust the output voltage of the DC/DC converter to the second voltage.

Optionally, the controller is specifically configured to acquire the undervoltage point of each first load when the electronic device is in the standby mode.

Because when the electronic equipment is in the working mode, the power supply needs to supply power to at least one second load in the electronic equipment, and the undervoltage point of the second load is usually high, so when the electronic equipment is in the working mode, the power supply needs to be kept relatively high. For high output voltage, for example, the output voltage needs to be kept at the first voltage. When the electronic device is in standby mode, the power supply does not need to supply power to the second load, so the controller can obtain the undervoltage point of the first load, and determine whether to control the power supply to adjust the output voltage based on the undervoltage point of the first load.

Optionally, the controller is further configured to control the output voltage of the power supply to be the first voltage if it is determined that the electronic device needs to switch to the working mode.

When the electronic device is in the working mode, the power supply also needs to supply power to at least one second load in the electronic device, and the undervoltage point of the second load is usually relatively high. Therefore, before the electronic device switches to the working mode, the controller first controls the power supply to adjust the output voltage to the first voltage, that is, controls the power supply to exit the energy-saving mode. Thus, it can be ensured that the power supply can drive the at least one second load to work normally after the electronic device switches to the working mode.

Optionally, the electronic device may further include: a switch and at least one second load, the power supply is also connected to the at least one second load through the switch; the controller may also be used to , controlling the switch to be turned off, so that the at least one second load is powered off; and if it is determined that the electronic device needs to switch to the working mode, controlling the switch to be turned on, so that the at least one second load is powered on.

Wherein, the at least one second load may include: a central processing unit (central processing unit, CPU), a memory, a hard disk drive (hard disk drive, HDD), a fan, and a power supply circuit of the above-mentioned second load (such as a DC/DC converter )Wait.

Optionally, the power supply in the electronic device may include a DC/DC converter, and the DC/DC converter is respectively connected to the controller, the at least one first load, and the switch. That is, the power supply can supply power to at least one first load and at least one second load through a DC/DC converter, thereby effectively reducing the cost of the power supply.

Alternatively, the power supply in the electronic device may include two DC/DC converters, wherein one DC/DC converter is respectively connected to the controller and at least one first load, and the other DC/DC converter is connected to the switch. That is, the at least one first load and the at least one second load can be powered by two DC/DC converters respectively. In this power supply mode, no matter whether the electronic device is in standby mode or working mode, the controller can control the power supply to adjust the output voltage of the DC/DC converter that supplies power to the first load.

Optionally, multiple different voltage thresholds may be stored in the controller, and each voltage threshold corresponds to an output voltage. If the controller detects that the undervoltage points of the at least one first load are all less than the target voltage threshold and not less than other voltage thresholds, or if it detects that the upper limit of the undervoltage points of the at least one first load is less than a plurality of alternative voltage threshold, and the difference between the multiple alternative voltage thresholds and the target voltage threshold is the smallest (that is, the closest to the target voltage threshold), the controller can control the power supply to adjust the output voltage to the target corresponding to the target voltage threshold The output voltage.

In another aspect, an electronic device is provided, and the electronic device includes: a power supply, a controller, and at least one first load; the power supply is respectively connected to the controller and the at least one first load; the power supply is used to output the first Two voltages; the controller is used to obtain the undervoltage point of each first load, and if the second voltage is less than the undervoltage point of any first load, control the output voltage of the power supply to be the first voltage, wherein , the first voltage is greater than the second voltage and greater than or equal to the undervoltage point of each first load.

In the solution provided by this application, the power supply can first output a lower second voltage, and when the controller detects that the second voltage is lower than the undervoltage point of any first load, it can control the power supply to increase the output voltage to ensure The at least one first load can work normally. Moreover, if the controller determines that the second voltage is greater than or equal to the undervoltage point of each first load, there is no need to control the power supply to adjust the output voltage, that is, the power supply can maintain its output voltage as a lower second voltage, thereby effectively Reduce power loss.

In yet another aspect, a method for adjusting the output voltage of a power supply is provided, which is applied to a controller in an electronic device, and the electronic device further includes a power supply and at least one first load, and the power supply is connected to the controller and the at least one first load respectively. A load is connected; the method includes: obtaining the undervoltage point of each first load; if the undervoltage point of each first load is less than the voltage threshold, then controlling the power supply to adjust the output voltage from the first voltage to the second voltage , wherein the second voltage is less than the first voltage and greater than or equal to the undervoltage point of each first load.

Optionally, the process of controlling the power supply to adjust the output voltage from the first voltage to the second voltage may include: sending a first instruction to the power supply, where the first instruction is used to modify the value of a register in the power supply, so that the power supply can adjust the output voltage according to The modified register value regulates the output voltage from the first voltage to the second voltage.

Optionally, the process of obtaining the undervoltage point of each first load may include: obtaining the undervoltage point of each first load when the electronic device is in the standby mode.

Optionally, the method may further include: if it is determined that the electronic device needs to switch to the working mode, controlling the output voltage of the power supply to be the first voltage.

Optionally, the electronic device may further include: a switch and at least one second load, and the power supply is also connected to the at least one second load through the switch; the method may further include: if it is determined that the electronic device is in standby mode, then controlling the switch to be turned off; and controlling the switch to be turned on if it is determined that the electronic device needs to switch to the working mode.

In yet another aspect, a method for adjusting the output voltage of a power supply is provided, which is applied to a controller in an electronic device, and the electronic device further includes the power supply and at least one first load, and the power supply is connected to the controller and the at least one load respectively. The first load is connected; the method includes: obtaining the undervoltage point of each first load; if the second voltage output by the power supply is less than the undervoltage point of any first load, controlling the output voltage of the power supply to be the first voltage , wherein the first voltage is greater than the second voltage and greater than or equal to the undervoltage point of each first load.

In yet another aspect, a method for adjusting the output voltage of a power supply is provided, which is applied to a power supply in an electronic device, and the electronic device further includes: a controller and at least one first load, and the power supply is connected to the controller and the at least one load respectively. The first load is connected; the method includes: outputting a first voltage, and if a first instruction sent by the controller is received, adjusting the output voltage from the first voltage to a second voltage based on the first instruction; wherein, the first instruction An instruction is sent by the controller after determining that the undervoltage point of each first load is less than a voltage threshold, and the second voltage is less than the first voltage and greater than or equal to the undervoltage point of each first load.

In yet another aspect, a method for adjusting the output voltage of a power supply is provided, which is applied to a power supply in an electronic device, and the electronic device further includes: a controller and at least one first load, and the power supply is connected to the controller and the at least one load respectively. The first load is connected; the method includes: outputting a second voltage, and if receiving a second instruction sent by the controller, adjusting the output voltage from the second voltage to the first voltage based on the second instruction; wherein, the first The second instruction is sent by the controller after determining that the second voltage is less than the undervoltage point of any first load, and the first voltage is greater than the second voltage and greater than or equal to the undervoltage point of each first load.

In yet another aspect, a controller is provided, the controller includes: a programmable logic circuit and/or program instructions, and the controller is used to implement the method for adjusting the output voltage of the controller provided in the above aspect.

In yet another aspect, a power supply is provided, the power supply includes: a programmable logic circuit and/or program instructions, and the power supply is used to implement the method for adjusting the output voltage of the power supply provided in the above aspect.

In another aspect, a controller is provided, and the controller includes at least one module, and the at least one module can be used to implement the method for adjusting the output voltage of the controller provided in the above aspect.

In another aspect, a power supply is provided, the power supply includes at least one module, and the at least one module can be used to implement the method for adjusting the output voltage of the power supply provided in the above aspect.

In yet another aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, and the instructions are executed by a processing circuit to implement the method for adjusting the output voltage applied to a controller or a power supply provided in the above aspects .

In yet another aspect, there is provided a computer program product containing instructions, which when the computer program product is run on a processing circuit, causes the processing circuit to execute the method for adjusting the output voltage of a controller or a power supply provided in the above aspect.

To sum up, this application provides a method and device for adjusting the output voltage of an electronic device and its power supply. The power supply in the electronic device can output a higher first voltage first, and the controller in the electronic device detects When the undervoltage point of each first load is less than the voltage threshold, the output voltage of the power supply can be controlled to be the second voltage. Since the second voltage is lower than the first voltage and greater than or equal to the undervoltage point of each first load, the loss of the power supply can be effectively reduced on the premise that the at least one first load can work normally.

Description of drawings

FIG. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of another electronic device provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a driving signal for driving a DC/DC converter provided in an embodiment of the present application;

FIG. 4 is a schematic diagram of another driving signal for driving a DC/DC converter provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of another electronic device provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of an output voltage of a power supply provided by an embodiment of the present application;

Fig. 7 is a schematic structural diagram of another electronic device provided by the embodiment of the present application;

FIG. 8 is a flow chart of a method for adjusting the output voltage of a power supply provided in an embodiment of the present application;

FIG. 9 is a flow chart of another method for adjusting the output voltage of a power supply provided by an embodiment of the present application;

FIG. 10 is a flow chart of another method for adjusting the output voltage of a power supply provided by an embodiment of the present application;

Fig. 11 is a flow chart of another method for adjusting the output voltage of a power supply provided by the embodiment of the present application;

Fig. 12 is a flow chart of another method for adjusting the output voltage of a power supply provided by the embodiment of the present application;

Fig. 13 is a schematic structural diagram of a controller provided by an embodiment of the present application;

Fig. 14 is a schematic structural diagram of a power supply provided by an embodiment of the present application.

Detailed ways

The method and device for adjusting the output voltage of the electronic device and its power supply provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

An embodiment of the present application provides an electronic device, and the electronic device may be a server, a computer, or a switching device. Wherein, the computer may be a desktop computer or a notebook computer, etc., and the switching device may be a router or a switch. Moreover, the electronic device supports at least the following two operating modes: standby mode and working mode. Wherein, in the working mode, all kinds of loads in the electronic equipment are in working state. In the standby mode, the second type of load in the electronic device is powered off, and only the first type of load works, so this standby mode can also be called a light load mode.

Fig. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As shown in Fig. 1, the electronic device includes: a power supply 01, a controller 02 and at least one first load 03, for example as shown in Fig. 1 Got a first load 03. The power source 01 is connected to a controller 02 and at least one first load 03 respectively.

The power supply 01 is used to output the first voltage.

The controller 02 is used to obtain the undervoltage point of each first load 03, and if the undervoltage point of each first load 03 is less than the voltage threshold, control the power supply 01 to adjust the output voltage from the first voltage to the second Two voltages, wherein the second voltage is less than the first voltage and greater than or equal to the undervoltage point of each first load 03 . The voltage threshold may be a pre-stored voltage value in the controller 02, and the voltage threshold is smaller than the first voltage.

In the embodiment of the present application, if the controller 02 detects that the undervoltage point of each first load 03 is relatively low, it can control the power supply 01 to lower the output voltage to the second voltage, thereby effectively reducing the loss of the power supply. Since the regulated output voltage (that is, the second voltage) is still greater than the undervoltage point of each first load 03 , it can be ensured that the at least one first load 03 can work normally.

Optionally, each first load 03 in the electronic device may report characteristic information such as the model, type and/or version of the first load 03 to the controller 02, for example, the first load 03 may After the device (such as plugged into the motherboard) reports its feature information to the controller 02. The controller 02 may determine the size of the undervoltage point of the first load 03 based on the characteristic information reported by the first load 03 .

For example, the controller 02 pre-stores the corresponding relationship between the characteristic information of the load and the undervoltage point. After the controller 02 receives the characteristic information reported by the first load 03, it can query the corresponding relationship to obtain the first load 03 the undervoltage point.

It can be understood that the power supply 01 usually includes a DC/DC converter inside, and the output voltage of the DC/DC converter is the output voltage of the power supply 01 . And, the magnitude of the output voltage of the DC/DC converter is positively related to the duty cycle of the driving signal used to drive the DC/DC converter, and the magnitude of the output voltage of the DC/DC converter is also related to the driving signal The frequency is positively correlated. Therefore, if the output voltage of the DC/DC converter is lowered, the duty ratio and/or frequency of the driving signal will also be lowered, and the working time of the DC/DC converter will be shortened accordingly. Correspondingly, the The loss of the DC/DC converter also becomes lower. Based on the above analysis, it can be seen that reducing the output voltage of the power supply can effectively reduce the loss of the power supply.

It can also be understood that the second voltage is greater than or equal to the undervoltage point of the controller 02, so as to ensure that the controller 02 can also work normally after adjusting the output voltage.

Optionally, the first voltage may be about 12V, for example, the fluctuation range of the first voltage may be (12±1.2)V, or may be (12±0.6)V. Both the voltage threshold and the second voltage may be smaller than the lower limit of the fluctuation range of the first voltage, for example, the power threshold may be 7V, and the second voltage may be 7.6V.

The first voltage is 12V, the voltage threshold is 7V, and the second voltage is 7.6V as an example for illustration. It is assumed that the electronic device includes a first load 03, and the first load 03 is a network card. If the undervoltage point of the network card acquired by the controller 02 is less than 7V, the controller 02 can control the power supply 01 to adjust the output voltage from 12V to 7.6V. Thus, not only can the normal operation of the network card be ensured, but also the power consumption can be effectively reduced.

Optionally, the controller 02 may be a BMC, or other devices with control functions, for example, a complex programmable logic device (complex programming logic device, CPLD).

In the embodiment of the present application, the first load 03 may refer to a load that needs to keep working even in the standby mode. For example, the first load 03 may be a network card or a CPLD. Moreover, the controller 02 and at least one first load 03 may also be referred to as a first-type load, and the first-type load refers to a load that needs to be powered on when the electronic device is powered on.

It can be understood that the first load 03 may also refer to a load that needs to monitor the undervoltage point in the electronic equipment. For example, if a certain load in the electronic equipment has different undervoltage points under different models, types or versions, this load is the first load 03 that needs to monitor the undervoltage point. If the undervoltage point of a load in the electronic equipment is the same in different models, the undervoltage point in different types is the same, and the undervoltage point in different versions is also the same, then the load does not need to be monitored Correspondingly, the controller 02 does not need to obtain the undervoltage point of the load.

For example, since the undervoltage point of the open computing project (open compute project, OCP) network card is generally about 12V, while the undervoltage point of other common network cards is less than 7V, so the controller 02 needs to monitor the undervoltage of the network card in the electronic device Point, that is, the first load 03 may include a network card. Since the undervoltage point of the CPLD is usually about 3.3V, the controller 02 does not need to monitor the undervoltage point of the CPLD, so the first load 03 may not include a CPLD.

It can also be understood that the first load 03 may include a functional chip and/or a power supply circuit for supplying power to the functional chip, and the undervoltage point of the first load 03 may refer to the undervoltage point of the functional chip, or may be Refers to the undervoltage point of the input voltage of the power circuit. Wherein, the power supply circuit may include a voltage converter, such as a DC/DC converter. Moreover, the power supply circuit can be set independently from the functional chip, or can be integrated in the functional chip. For example, assuming that the functional chip is a network card, the power supply circuit of the network card can be integrated in the network card.

It can also be understood that the first load 03 needs a rated power supply voltage (also referred to as a rated voltage) to ensure the first load 03 works, and the rated voltage is a voltage range. The undervoltage point of the first load 03 may refer to the minimum value of the rated voltage of the first load 03 , or may be lower than the minimum value of the rated voltage. Moreover, the undervoltage point of the first load 03 may be a voltage value, or may also be a voltage range, which is not limited in this embodiment of the present application.

Optionally, in this embodiment of the present application, when the controller 02 detects that the undervoltage point of each first load 03 is less than the voltage threshold, it may send the first instruction to the power supply 01 . The power supply 01 can then adjust its output voltage from the first voltage to the second voltage based on the first command. That is, the power supply 01 may enter the energy-saving mode based on the first instruction, which may also be referred to as an energy-saving instruction.

FIG. 2 is a schematic structural diagram of another electronic device provided by the embodiment of the present application. As shown in FIG. device 012 and power control circuit 013. Wherein, the AC/DC converter 011 is connected to the DC/DC converter 012 for converting the alternating current into direct current and then transmitting it to the DC/DC converter 012 . The DC/DC converter 012 is connected to the controller 02 and at least one first load 03 respectively, and is used to convert the DC power transmitted by the AC/DC converter 011 and then output it to the controller 02 and at least one first load 03 .

The power control circuit 013 is connected to the controller 02 and the DC/DC converter 012 respectively, and the power control circuit 013 can adjust the duty of the driving signal for driving the DC/DC converter 012 based on the first instruction sent by the controller 02 ratio and/or frequency, so as to realize the adjustment of the output voltage of the DC/DC converter 012 . Wherein, the driving signal for driving the DC/DC converter 012 may be a pulse width modulation (pulse width modulation, PWM) signal.

Exemplarily, as shown in FIG. 3 , before the power control circuit 013 receives the first instruction, the duty ratio of the drive signal PWM1 used to drive the DC/DC converter 012 is high, and the DC/DC converter 012 is in the drive signal Driven by PWM1, the first voltage, such as 12V, can be output. After receiving the first instruction, the power control circuit 013 can adjust the duty ratio of the driving signal PWM1 to obtain the driving signal PWM2. The duty ratio of the driving signal PWM2 is low, and the DC/DC converter 012 can output a second voltage, such as 7.6V, driven by the driving signal PWM2. Referring to FIG. 3, it can be seen that the period T1 of the driving signal PWM1 is equal to the period T2 of the driving signal PWM1, that is, when the power control circuit 013 adjusts the duty ratio of the driving signal, the period (ie frequency) of the driving signal can be kept unchanged.

Or, as shown in FIG. 4, before the power supply control circuit 013 receives the first command, the frequency of the driving signal PWM3 used to drive the DC/DC converter 012 is relatively high (that is, the period T3 is relatively short), and the DC/DC conversion The converter 012 can output a first voltage, such as 12V, under the drive of the drive signal PWM3. After receiving the first instruction, the power control circuit 013 can adjust the frequency of the driving signal PWM3 to obtain the driving signal PWM4. The frequency of the driving signal PWM4 is low (that is, the period T4 is longer), and the DC/DC converter 012 can output a second voltage, such as 7.6V, driven by the driving signal PWM4 . Referring to FIG. 4 , it can be seen that the duty ratio of the driving signal PWM3 is equal to that of the driving signal PWM4 , that is, when the power control circuit 013 adjusts the frequency of the driving signal, the duty ratio of the driving signal can be kept unchanged.

Optionally, the controller 02 and the power control circuit 013 may be connected through an I2C bus. Correspondingly, the first instruction may be an I2C instruction, and the I2C instruction may be used to modify the value of a register inside the power supply 01 . The power control circuit 013 can adjust the duty cycle and/or frequency of the driving signal based on the modified register value.

Certainly, the connection between the controller 02 and the power control circuit 013 may also be in other ways, and the first instruction may also be an instruction in other forms. For example, the first instruction may also be a fixed-level hardware signal. Assuming that the fixed level is a low level, the controller 02 may transmit a low-level signal to the power supply control circuit 013 when detecting that the undervoltage point of each first load 03 is lower than the voltage threshold, that is, turn the power supply The level of the pin connected to the controller 02 in the control circuit 013 is pulled down. The power control circuit 013 can then adjust the duty cycle and/or frequency of the driving signal for driving the DC/DC converter 012 based on the level change.

As shown in FIG. 2 , the electronic device may further include a switch 04 and at least one second load 05 , for example, two second loads 05 are exemplarily shown in FIG. 2 . The second load 05 may refer to a load that is powered on when the electronic device is in the working mode and powered off when the electronic device is in the standby mode, and the at least one second load 05 may also be called a second type of load. The second load is a load that can be powered off when the service of the electronic device is not running. For example, the at least one second load 05 may include a CPU, a memory, a HDD, a fan, and a power supply circuit (such as a DC/DC converter) of the above-mentioned second load, and the like. Wherein, the memory may be a dual inline memory module (dual-inline-memory-modules, DIMM). Wherein, the service refers to the service of the user that the electronic device needs to process.

It can be seen with reference to FIG. 2 that the power source 01 can be connected to the at least one second load 05 through a switch 04 . The controller 02 can also be used to: if it is determined that the electronic device is in standby mode, then control the switch 04 to turn off, so that the at least one second load 05 is powered off; and if it is determined that the electronic device needs to switch to the working mode, then control The switch 04 is closed, so that the at least one second load 05 can work normally driven by the power source 01 .

As a possible implementation, as shown in Figure 2, the DC/DC converter 012 in the power supply 01 can also be connected to the switch 04, that is, all types of loads in the electronic equipment are powered by the same DC/DC converter 012 power supply. Since the undervoltage point of the second load 05 in electronic equipment is usually relatively high, in order to ensure the normal operation of the second load 05 in the working mode, the DC/DC converter 012 needs to maintain a relatively high output voltage in the working mode, For example, the output voltage needs to be kept at the first voltage.

It can be understood that, in this implementation, the controller 02 can control the power supply 01 to adjust the output voltage of the DC/DC converter 012 only when the electronic device is in the standby mode. That is, the controller 02 can obtain at least one undervoltage point of the first load 03 when the electronic device is in the standby mode, and then judge whether it is necessary to control the power supply 01 to adjust the DC/DC according to the obtained undervoltage point. Converter 012 output voltage.

In this implementation, after the controller 02 controls the power supply 01 to adjust the output voltage to the second voltage, if it is determined that the electronic device needs to switch to the working mode, it can also control the power supply 01 to adjust the output voltage from the second voltage to the first voltage. Voltage. For example, the controller 02 may send a second instruction to the power supply 01, and the power supply 01 may adjust its output voltage to the first voltage based on the second instruction. That is, the power supply 01 can exit the energy-saving mode based on the second instruction, so as to ensure that the electronic device can normally switch to the working mode. Wherein, the implementation manner of the second instruction may be the same as that of the first instruction, which will not be repeated here.

For example, the controller 02 may send a second instruction to the power supply control circuit 013 in the power supply 01, and the power supply control circuit 013 may adjust the duty ratio and and/or frequency, so that the output voltage of the DC/DC converter 012 returns to the first voltage.

In this implementation, since the power supply 01 can supply power to two types of loads through one DC/DC converter 012 , the cost of this implementation is lower than setting two DC/DC converters to supply power to the two types of loads respectively.

As another possible implementation manner, as shown in FIG. 5 , the power supply 01 may include a DC/DC converter 012a and a DC/DC converter 012b. Wherein, the DC/DC converter 012a is respectively connected with the controller 02 and at least one first load 03 , and the DC/DC converter 012b is connected with the switch 04 . That is, the two types of loads in the electronic equipment can be powered by different DC/DC converters respectively.

Since in this implementation, the two types of loads are independently powered by two DC/DC converters, the controller 02 can not only control the power supply 01 to adjust the output voltage of the DC/DC converter 012a when the electronic device is in standby mode, but also The control power supply 01 regulates the output voltage of the DC/DC converter 012a when the electronic device is in the working mode. That is, when the electronic device is in the standby mode or the working mode, the controller 02 can obtain the undervoltage point of the at least one first load 03, and judge whether it is necessary to control the power supply 01 to adjust according to the obtained undervoltage point. The output voltage of the DC/DC converter 012a.

Since the power of the second type of load in electronic equipment is generally higher, and the power of the first type of load is generally lower, in this implementation, the power of the DC/DC converter 012b can be higher, and the power of the DC/DC converter 012a The power can be lower. Moreover, when the electronic device is in standby mode, the DC/DC converter 012b with higher power can be turned off, and only the DC/DC converter 012a with lower power works, thereby further reducing power loss in standby mode.

It can be understood that the electronic device will be in the standby mode first after being started, and the power supply 01 first supplies power to the first type of load (including the controller 02 and at least one first load 03 , etc.) to drive the first type of load to work. The controller 02 can perform a power-on self-test (also called power-on self-test) on the electronic device after being powered on. After the power-on self-test passes, the controller 02 can determine that the electronic device can switch to the working mode. Further, the controller 02 may control the switch 04 to close, so that the power source 01 supplies power to the second load 05, and at this time, the electronic device enters the working mode. Moreover, after the electronic device enters the working mode, the controller 02 may also control the electronic device to switch to the standby mode again based on the received standby instruction.

Hereinafter, taking the first voltage as 12V, the second voltage as 7.6V, and the voltage threshold as 7V as an example, the operation process of the electronic device shown in FIG. 2 will be described. As shown in FIG. 6 , assuming that the electronic device is started at time t0, the electronic device first enters the standby mode. In this standby mode, the output voltage of the power supply 01 is 12V, and the first type of loads including the controller 02 and at least one first load 03 are powered on. If the controller 02 detects that the undervoltage points of the at least one first load 03 are all less than 7V, it can send a first instruction to the power supply 01 . After receiving the first instruction, the power supply 01 can lower its output voltage from 12V to 7.6V to enter the energy-saving mode. For example, referring to FIG. 6, the controller 02 may send a first command at time t1, and the power supply 01 may adjust its output voltage to 7.6V at time t2.

If the controller 02 determines that the electronic device passes the power-on self-test at time t3, it can determine that the electronic device needs to switch to the working mode, and can send a second instruction to the power supply 01 . The power supply 01 can further adjust its output voltage from 7.6V to 12V based on the second instruction, that is, the power supply 01 can exit the energy-saving mode.

In the embodiment of the present application, the controller 02 may control the switch 04 to close after determining that the output voltage of the power supply 01 has been adjusted to 12V, so as to ensure that the electronic device can normally switch to the working mode. For example, referring to FIG. 6 , assuming that the output voltage of the power supply 01 is stable at 12V at time t4, the controller may control the switch 04 to close after time t4. Thus, it can be ensured that after the switch 04 is closed, the at least one second load 05 can be powered on normally under the voltage of 12V provided by the power supply 01 .

Assume that the total power of the first type of load in the electronic equipment is 7.3 watts (W), the first voltage is 12V, and the second voltage is 7.6V. When the electronic device is in standby mode, if the output voltage of the power supply 01 is 12V, the total loss of the power supply 01 and the first type of load is 14.5W. If the output voltage of power supply 01 is reduced to 7.6V, the total loss of power supply 01 and the first type of load can be reduced to 11W, which is 3.5W lower than 14.5W.

It can be understood that, the controller 02 may store multiple different voltage thresholds, and each voltage threshold corresponds to an output voltage. If the controller 02 detects that the undervoltage point of at least one first load 03 is less than the target voltage threshold and not less than other voltage thresholds; or, if it detects that the upper limit of the undervoltage point of the at least one first load 03 is less than multiple alternative voltage threshold, and the difference between the multiple alternative voltage thresholds and the target voltage threshold is the smallest, that is, the closest to the target voltage threshold, then the controller 02 can control the power supply 01 to adjust the output voltage to be equal to the target voltage threshold corresponding to the target output voltage.

Alternatively, the controller 02 may store multiple different voltage ranges, and each voltage range corresponds to an output voltage. If the controller 02 detects that the undervoltage points of the at least one first load 03 are all within the target voltage range, it can control the power supply 02 to adjust the output voltage to a target output voltage corresponding to the target voltage range.

For example, referring to Table 1, it is assumed that there are three voltage ranges stored in the controller 02, wherein the first voltage range is a range smaller than Vth1, and its corresponding output voltage is V1; the second voltage range is [Vth1, Vth2) , the corresponding output voltage is V2; the third voltage range is [Vth2, Vth3), and the corresponding output voltage is V3. Wherein, V1<V2<V3, for example, V1 may be 7.6V, V2 may be 12V, and V3 may be 48V.

If the controller 02 detects that the voltage of the at least one first load 03 is lower than Vth1, it can control the power supply 01 to adjust the output voltage from the first voltage to V1. If the controller 02 detects that the voltage of the at least one first load 03 is greater than or equal to Vth2 and less than Vth3, it can control the power supply 01 to adjust the output voltage from the first voltage to V3.

Table 1

voltage range The output voltage <Vth1 V1 [Vth1, Vth2) V2 [Vth2, Vth3) V3

It can be understood that there may be many types of the first load 03 in the electronic device, and the voltage requirements are also different, that is, the fluctuation range of the undervoltage point of the first load 03 may be relatively large. Therefore, by setting multiple voltage thresholds (or multiple voltage ranges), the controller 02 can flexibly and finely control the power supply 01 to adjust the output voltage according to the size of the undervoltage point of the first load 03 currently in place, so that the On the premise of ensuring that at least one first load 03 can work normally, the loss of the power supply 01 is effectively reduced.

FIG. 7 is a schematic structural diagram of another electronic device provided by an embodiment of the present application. As shown in FIG. 7 , the electronic device may include multiple power supplies 01 , for example, two power supplies 01 are shown in FIG. 7 . The structures of the multiple power sources 01 may be the same, for example, they may all be the same as those shown in FIG. 2 or FIG. 5 . By setting multiple power sources 01, it can be ensured that when any power source 01 fails, other power sources 01 can continue to supply power to the load, thereby effectively improving the reliability of electronic equipment.

Continuing to refer to FIG. 7 , both the first-type load and the second-type load in the electronic device can be set on the main board 00 , and the main board 00 can also be called a single board. The switch 04 can be set on the main board 00, or can also be integrated in the power supply 01.

Optionally, as shown in FIG. 7, at least one first load 03 in the electronic device may include a network card 03a and a DC/DC converter 03b. The DC/DC converter 03b can be connected to other first-type loads such as CPLDs, and is used for converting the voltage output by the power supply 01 to provide other first-type loads such as CPLDs. For example, the DC/DC converter 03b can convert the voltage of 12V or 7.6V output by the power supply 01 into 3.3V.

It can be understood that referring to FIG. 7, at least one second load 05 in the electronic device may include CPU 05a, HDD 05b, memory 05c, etc., and may also include a DC/DC converter 05d for supplying power to the above loads. The DC/DC converter 05d is used to convert the output voltage of the power supply 01 to the second load connected thereto.

The above are all described by taking the electronic device including two types of loads as an example. For the scenario where the electronic device includes the two types of loads, the power supply domain of the power supply can be divided into a VCC domain and a standby (standby) domain. The VCC domain is used to supply power to the second type of load, and the standby domain is used to supply power to the first type of load. Wherein, VCC is the abbreviation of volt current capacitor (volt current condenser), and represents the power supply voltage.

It should be understood that the electronic device may also include three or more types of loads, and correspondingly, the power supply may include three or more power supply domains. For example, the electronic device may further include a third type of load, and the power supply may further include a third power supply domain for supplying power to the third type of load. Moreover, for each type of load, the controller 02 can control the power supply domain corresponding to this type of load to adjust the output voltage based on the size of the undervoltage point of this type of load. For the process that the controller 02 controls the corresponding power supply domain to adjust the output voltage, reference may be made to the above description, which will not be repeated here.

To sum up, the embodiment of the present application provides an electronic device, the power supply in the electronic device can first output a higher first voltage, and the controller detects that the undervoltage point of each first load is lower than the voltage threshold , the output voltage of the power supply can be controlled to be the second voltage. Since the second voltage is greater than or equal to the undervoltage point of each first load, the loss of the power supply can be effectively reduced on the premise of ensuring that the at least one first load can work normally.

The embodiment of the present application also provides another electronic device, as shown in Figure 1, Figure 2, Figure 5 and Figure 7, the electronic device includes: a power supply 01, a controller 02 and at least one first load 03, the power supply 01 They are respectively connected to the controller 02 and at least one first load 03.

The power supply 01 is used to output the second voltage.

The controller 02 is used to obtain the undervoltage point of each first load 03, and if the second voltage is less than the undervoltage point of any first load 03, the output voltage of the control power supply 01 is the first voltage, wherein , the first voltage is greater than the second voltage, and greater than or equal to the undervoltage point of each first load 03 .

That is, the power supply 01 can first output a lower second voltage, and if the controller 02 detects that any first load 03 cannot work normally under the drive of the second voltage, it can control the power supply 01 to increase the output voltage to the first voltage to ensure that the at least one first load 03 can work normally. It can be understood that if the controller 02 detects that the second voltage is greater than or equal to the undervoltage point of each first load 03, there is no need to control the power supply 01 to adjust the output voltage, that is, the power supply 01 can continue to output a lower second voltage , which can effectively reduce power loss.

For example, assume that the second voltage output by the power supply 01 is 7.6V, the at least one first load 03 includes an OCP network card, and the undervoltage point of the OCP network card is 12V. Since the controller 02 can detect that the undervoltage point of the OCP network card is greater than 7.6V after being powered on, it can control the power supply 01 to adjust the output voltage to 12V to ensure that the OCP network card can also work normally.

Optionally, the controller 02 may send a second instruction to the power supply 01 after detecting that the second voltage is lower than the undervoltage point of any first load 03 . The power supply 02 can then adjust its output voltage from the second voltage to the first voltage based on the second instruction. Wherein, the process of adjusting the output voltage of the power supply 02 based on the second instruction can refer to the above-mentioned embodiment, and will not be repeated here.

To sum up, the embodiment of the present application provides an electronic device. The power supply in the electronic device can first output a lower second voltage, and the controller can detect that the second voltage is less than any one of the first loads. When the voltage point is reached, the output voltage of the control power supply is increased to the first voltage, so as to ensure that the at least one first load can work normally. Moreover, if the controller determines that the second voltage is greater than or equal to the undervoltage point of each first load, there is no need to control the power supply to adjust the output voltage, that is, the power supply can maintain its output voltage as a lower second voltage, thereby effectively Reduce power loss.

Fig. 8 is a flow chart of a method for adjusting the output voltage of a power supply provided by an embodiment of the present application. This method can be applied to a controller in an electronic device, for example, as shown in Fig. 1, Fig. 2, Fig. 5 and Fig. 7 The controller 02 shown in any of the accompanying drawings. Referring to the above drawings, it can be seen that the electronic device further includes a power supply 01 and at least one first load 03 , and the power supply 01 is connected to the controller 02 and the at least one first load 03 respectively. As shown in Figure 8, the method includes:

Step 101. Obtain the undervoltage point of each first load.

In the embodiment of the present application, the controller may obtain the undervoltage point of each first load when the output voltage of the power supply is the first voltage.

Step 102, if the undervoltage point of each first load is smaller than the voltage threshold, control the power supply to adjust the output voltage from the first voltage to the second voltage.

If the controller detects that the undervoltage point of each first load is lower, it can determine that the power supply can enter the energy-saving mode, so it can control the power supply to adjust the output voltage to the second voltage. Wherein, the second voltage is lower than the first voltage and greater than or equal to the undervoltage point of each first load. The voltage threshold is also less than the first voltage.

To sum up, the embodiment of the present application provides a method for adjusting the output voltage of the power supply. The controller can control the output voltage of the power supply to the second Voltage. Since the second voltage is lower than the first voltage and greater than or equal to the undervoltage point of each first load, the loss of the power supply can be effectively reduced on the premise that the at least one first load can work normally.

Fig. 9 is a flow chart of another method for adjusting the output voltage of a power supply provided by an embodiment of the present application. This method can be applied to controllers in electronic equipment, for example, as shown in Fig. 1, Fig. 2, Fig. 5 and Fig. 7. The controller 02 shown in any accompanying drawing. Referring to the above drawings, it can be seen that the electronic device further includes a power supply 01 and at least one first load 03 , and the power supply 01 is connected to the controller 02 and the at least one first load 03 respectively. As shown in Figure 9, the method includes:

Step 201. Obtain the undervoltage point of each first load.

In the embodiment of the present application, the controller may obtain the undervoltage point of each first load when the output voltage of the power supply is the second voltage.

Step 202, if the second voltage output by the power supply is lower than the undervoltage point of any first load, control the output voltage of the power supply to be the first voltage.

If the controller detects that the second voltage is lower than the undervoltage point of any first load, it can determine that the first load cannot work normally under the driving of the power supply, so it can control the output voltage of the power supply to be the first voltage. Wherein, the first voltage is greater than the second voltage, and greater than or equal to the undervoltage point of each first load.

To sum up, the embodiment of the present application provides a method for adjusting the output voltage of the power supply. The power supply can first output a lower second voltage, and the controller can detect that the second voltage is lower than the undervoltage of any first load. When the voltage point is reached, the power supply is controlled to increase the output voltage to the first voltage, so as to ensure that the at least one first load can work normally. Moreover, if the controller determines that the second voltage is greater than or equal to the undervoltage point of each first load, there is no need to control the power supply to adjust the output voltage, that is, the power supply can maintain its output voltage as a lower second voltage, thereby effectively Reduce power loss.

Fig. 10 is a flowchart of another method for adjusting the output voltage of a power supply provided by the embodiment of the present application. This method can be applied to electronic equipment, for example, as shown in any one of Fig. 2, Fig. 5 and Fig. 7. electronic equipment shown. As shown in the above figures, the electronic device includes: a power supply 01 , a controller 02 , at least one first load 03 , a switch 04 and at least one second load 05 . Wherein, the power supply 01 is respectively connected to the controller 02 and at least one first load 03 , and is connected to the at least one second load 05 through a switch 04 . In the following, when the electronic device is in the standby mode, the power supply 01 first outputs the first voltage as an example for illustration. As shown in Figure 10, the method includes:

Step 301. In standby mode, the power supply outputs a first voltage.

The first voltage may be equal to the required output voltage of the power supply when the electronic device is in the working mode, that is, the first voltage may be higher. For example, the first voltage may be equal to 12V.

It is understandable that the electronic device will first be in a standby mode after being powered on. After the controller determines that the electronic equipment passes the power-on self-test, it can control the electronic equipment to enter the working mode. After the electronic device enters the working mode, the controller can also control the electronic device to switch to the standby mode again based on the received standby instruction.

Step 302, in the standby mode, the controller controls the switch to be turned off.

If the controller determines that the electronic device is in the standby mode, it may control the switch to be turned off. At this time, the power supply cannot supply power to at least one second load (ie, the second type of load), and the at least one second load is powered off.

Step 303, the controller obtains the undervoltage point of each first load.

When the electronic device is in the standby mode, the controller can also obtain the undervoltage point of each first load.

Step 304 , if the controller detects that the undervoltage point of each first load is less than the voltage threshold, it sends a first instruction to the power supply.

The voltage threshold is a voltage value pre-stored in the controller, and the power threshold is smaller than the first voltage. If the controller detects that the undervoltage point of each first load is less than the voltage threshold, it can determine that the power supply can enter the energy-saving mode, and therefore can send the first instruction to the power supply. The first instruction is used to instruct the power supply to adjust the output voltage from the first voltage to a second voltage.

Step 305, the power supply adjusts the output voltage from the first voltage to the second voltage based on the first instruction.

After the power supply receives the first instruction sent by the controller, it can adjust its output voltage from the first voltage to the second voltage based on the indication of the first instruction. Wherein, the second voltage is lower than the first voltage and greater than or equal to the undervoltage point of each first load. That is, the power supply can enter the energy-saving mode based on the first instruction. Thus, not only can the at least one first load be ensured to work normally, but also the power loss can be effectively reduced.

Optionally, the first instruction sent by the controller may be used to modify the value of a register inside the power supply, and the power supply may adjust the output voltage from the first voltage to the second voltage based on the modified value of the register. Alternatively, the first instruction sent by the controller may be a hardware signal of a fixed level (such as a low level), and the power supply may change based on the level of the pin connected to the controller (such as the level changes from high to low), The output voltage is regulated from the first voltage to the second voltage.

Step 306, if the controller determines that the electronic device needs to switch to the working mode, then send a second instruction to the power supply.

After controlling the power supply to adjust the output voltage to the second voltage, the controller can send a second instruction to the power supply if it determines that the electronic device needs to switch to the working mode. The second instruction is used to instruct the power supply to adjust the output voltage from the second voltage to the first voltage.

Step 307, the power supply adjusts the output voltage from the second voltage to the first voltage based on the second command.

After receiving the second instruction sent by the controller, the power supply can restore its output voltage to the first voltage based on the instruction of the second instruction. That is, the power supply can exit the energy-saving mode based on the second instruction.

Optionally, the second instruction sent by the controller can be used to modify the value of the internal register of the power supply, and the power supply can adjust the output voltage from the second voltage to the first voltage based on the modified value of the register. Alternatively, the second command sent by the controller may be a hardware signal of a fixed level (such as a high level), and the power supply may change based on the level of the pin connected to the controller (such as the level changes from low to high), The output voltage is regulated from the second voltage to the first voltage.

Step 308, the controller controls the switch to close after the power supply outputs the first voltage.

After the controller detects that the output voltage of the power supply returns to the first voltage, it can control the switch to close. At this time, the power supply can output the first voltage to at least one second load, and the at least one second load can work normally driven by the first voltage, that is, the electronic device can normally switch to the working mode.

It can also be understood that the execution order of the steps in the above method embodiments can be adjusted according to the situation, and the steps can also be increased or decreased according to the situation. For example, step 303 may be performed before step 302, or performed synchronously with step 302. Alternatively, step 302 may be deleted according to circumstances. For example, if the electronic device is powered on and enters a standby mode, the initial state of the switch may be an off state, and the controller does not need to perform step 302 . Or, the above step 306 and step 308 can be deleted according to the situation. For example, if the controller detects that the electronic device fails the power-on self-test, it can determine that the electronic device cannot be switched to the working mode, so that steps 306 and 308 do not need to be performed. Alternatively, after the above step 308, if the controller receives the standby instruction, the above step 302 to step 304 may be executed again.

To sum up, the embodiment of the present application provides a method for adjusting the output voltage of the power supply. When the electronic device is in the standby mode, the power supply can first output a higher first voltage, and the controller detects that each first load When all the undervoltage points are less than the voltage threshold, the output voltage of the power supply can be controlled to be the second voltage. Since the second voltage is lower than the first voltage and greater than or equal to the undervoltage point of each first load, the loss of the power supply can be effectively reduced on the premise that the at least one first load can work normally.

Fig. 11 is a flow chart of another method for adjusting the output voltage of a power supply provided by an embodiment of the present application. This method can be applied to power supplies in electronic equipment, for example, as shown in Fig. 1, Fig. 2, Fig. 5 and Fig. 7 The power supply 01 shown in any one of the drawings. Referring to the above drawings, it can be seen that the electronic device further includes a controller 02 and at least one first load 03 , and the power supply 01 is connected to the controller 02 and the at least one first load 03 respectively. As shown in Figure 11, the method includes:

Step 401, outputting a first voltage.

Step 402, if the first instruction sent by the controller is received, adjust the output voltage from the first voltage to the second voltage based on the first instruction.

Wherein, the second voltage is lower than the first voltage and greater than or equal to the undervoltage point of each first load. The first instruction is sent by the controller after determining that the undervoltage point of each first load is less than a voltage threshold, where the voltage threshold is a voltage value pre-stored in the controller, and the voltage threshold is less than the first voltage. That is, if the controller detects that the undervoltage point of each first load is relatively low, it can instruct the power supply to enter the energy-saving mode through the first instruction.

For example, the first instruction may be used to modify a value of a register inside the power supply, and the power supply may adjust the output voltage from the first voltage to the second voltage based on the modified value of the register.

It can be understood that the above step 401 and step 402 may be performed when the electronic device is in a standby mode, or may also be performed when the electronic device is in a working mode, which is not limited in this embodiment of the present application.

To sum up, the embodiment of the present application provides a method for adjusting the output voltage of the power supply. The power supply can first output a higher first voltage. If the controller detects that the undervoltage point of each first load is lower, Then a first instruction may be sent to the power supply to instruct the power supply to lower the output voltage to enter the energy-saving mode. Therefore, the loss of the power supply can be effectively reduced on the premise of ensuring that the at least one first load can work normally.

Fig. 12 is a flowchart of another method for adjusting the output voltage of a power supply provided by the embodiment of the present application. This method can be applied to power supplies in electronic equipment, for example, as shown in Fig. 1, Fig. 2, Fig. 5 and Fig. 7 The power supply 01 shown in any one of the drawings. Referring to the above drawings, it can be seen that the electronic device further includes a controller 02 and at least one first load 03 , and the power supply 01 is connected to the controller 02 and the at least one first load 03 respectively. As shown in Figure 12, the method includes:

Step 501, outputting a second voltage.

Step 502, if a second instruction sent by the controller is received, adjust the output voltage from the second voltage to the first voltage based on the second instruction.

Wherein, the second instruction is sent by the controller after determining that the second voltage is lower than the undervoltage point of any first load, the first voltage is greater than the second voltage, and is greater than or equal to the undervoltage point of each first load point. That is, the power supply can first output a lower second voltage, and if the controller detects that any first load cannot work normally driven by the second voltage, it can instruct the power supply to increase its output by sending a second command Voltage.

For example, the second instruction can be used to modify the value of the internal register of the power supply, and the power supply can adjust the output voltage from the second voltage to the first voltage based on the modified value of the register.

It can be understood that if the power supply does not receive the second instruction sent by the controller, that is, the second voltage is greater than or equal to the undervoltage point of each first load, the power supply can maintain its output voltage at the second lower voltage .

It can also be understood that the above step 501 and step 502 may be performed when the electronic device is in a standby mode.

To sum up, the embodiment of the present application provides a method for adjusting the output voltage of the power supply. The power supply can first output a lower second voltage, and the controller can detect that the second voltage is lower than the undervoltage of any first load. When the voltage point is reached, the power supply is controlled to increase the output voltage to the first voltage, so as to ensure that the at least one first load can work normally. Moreover, if the controller determines that the second voltage is greater than or equal to the undervoltage point of each first load, there is no need to control the power supply to adjust the output voltage, that is, the power supply can maintain its output voltage as a lower second voltage, thereby effectively Reduce power loss.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the implementation process of each step in each method embodiment described above can refer to the relevant description in the foregoing electronic device embodiment, and details are not repeated here.

Fig. 13 is a schematic structural diagram of a controller provided by an embodiment of the present application. The controller can be applied to the electronic equipment shown in the above embodiments, for example, it can be applied to the electronic device shown in Fig. 1, Fig. 2, Fig. 5 or Fig. 7 in the electronic device shown. Referring to Figure 13, the controller 02 includes:

An acquisition module 021, configured to acquire the undervoltage point of each first load. For the function implementation of the acquisition module 021, reference may be made to the relevant descriptions of step 101 or step 303 in the above method embodiments.

An adjustment module 022, configured to control the output voltage of the power supply to a second voltage if the undervoltage point of each first load is less than the voltage threshold, wherein the second voltage is less than the first voltage and greater than or equal to each The undervoltage point of the first load. For the function implementation of the adjustment module 022, reference may be made to the relevant description of step 102 in the above method embodiment.

Optionally, the adjustment module 022 may be configured to: send a first instruction to the power supply, the first instruction is used to modify the value of the register in the power supply, and the power supply is used to change the output voltage from the first A voltage is regulated to the second voltage. For the realization of the function of the adjustment module 022, reference may also be made to the relevant description of step 304 in the above method embodiment.

Optionally, the acquiring module 021 may be specifically configured to: acquire the undervoltage point of each first load when the electronic device is in the standby mode.

Optionally, the regulating module 022 can also be used to: control the output voltage of the power supply to be the first voltage if it is determined that the electronic device needs to switch to the working mode. For the function realization of the adjustment module 022, reference may also be made to the relevant description of step 306 in the above method embodiment.

Optionally, as shown in FIG. 13 , the controller 02 may also include a control module 023, which may be used to: when the electronic device is in the standby mode, control the switch to be turned off, and if it is determined that the electronic device needs to switch to In working mode, the control switch is closed. For the function implementation of the control module 023, reference may be made to the relevant descriptions of steps 302 and 308 in the above method embodiments.

To sum up, the embodiment of the present application provides a controller, which can control the power supply to adjust the output voltage from the first voltage to the second voltage when it detects that the undervoltage point of each first load is lower than the voltage threshold. Second voltage. Since the second voltage is lower than the first voltage and greater than or equal to the undervoltage point of each first load, the loss of the power supply can be effectively reduced on the premise that the at least one first load can work normally.

The embodiment of the present application also provides another controller, as shown in Figure 13, the controller 02 includes:

An acquisition module 021, configured to acquire the undervoltage point of each first load. For the function implementation of the acquisition module 021, reference may be made to the relevant description of step 201 in the above method embodiment.

An adjustment module 022, configured to control the output voltage of the power supply to be the first voltage if the second voltage output by the power supply is less than the undervoltage point of any first load, wherein the first voltage is greater than the second voltage and greater than or equal to Undervoltage point of each first load. For the function implementation of the adjustment module 022, reference may be made to the relevant description of step 202 in the above method embodiment.

To sum up, the embodiment of the present application provides a controller, which can control the power supply to increase the output voltage when it detects that the second voltage output by the power supply is lower than the undervoltage point of any first load, so as to It is ensured that the at least one first load can work normally. Moreover, if the controller determines that the second voltage is greater than or equal to the undervoltage point of each first load, there is no need to control the power supply to adjust the output voltage, that is, the power supply can maintain its output voltage as a lower second voltage, thereby effectively Reduce power loss.

Fig. 14 is a schematic structural diagram of a power supply provided by the embodiment of the present application. The power supply can be applied to the electronic equipment shown in the above embodiments, for example, it can be applied to the electronic equipment shown in Fig. 1, Fig. 2, Fig. 5 or Fig. 7 in electronic equipment. Referring to Figure 14, the power supply 01 includes:

An output module 014, configured to output the first voltage. For the function implementation of the output module 014, reference may be made to the relevant description of step 301 or step 401 in the above method embodiments.

The adjustment module 015 is configured to adjust the output voltage from the first voltage to the second voltage based on the first instruction if the first instruction sent by the controller is received. Wherein, the first instruction is sent by the controller after determining that the undervoltage point of each first load is less than the voltage threshold, and the second voltage is less than the first voltage and greater than or equal to the undervoltage point of each first load . For the function implementation of the adjustment module 015, reference may be made to the relevant descriptions of step 305 or step 402 in the above method embodiments.

To sum up, the embodiment of the present application provides a power supply, which can first output a higher first voltage, and if the controller detects that the undervoltage point of each first load is lower, it can send The first instruction, and the power supply can then adjust the output voltage down based on the first instruction, so as to enter the energy-saving mode. Therefore, the loss of the power supply can be effectively reduced on the premise of ensuring that the at least one first load can work normally.

The embodiment of the present application also provides another power supply, as shown in Figure 14, the power supply 01 includes:

An output module 014, configured to output the second voltage. For the function implementation of the output module 014, reference may be made to the relevant description of step 501 in the above method embodiment.

The adjustment module 015 is configured to adjust the output voltage from the second voltage to the first voltage based on the second instruction if the second instruction sent by the controller is received. Wherein, the second instruction is sent by the controller after determining that the second voltage is less than the undervoltage point of any first load, the first voltage is greater than the second voltage, and is greater than or equal to the undervoltage point of each first load . For the function implementation of the adjustment module 015, reference may be made to the relevant descriptions of step 307 or step 502 in the above method embodiments.

To sum up, the embodiment of the present application provides a power supply, which can first output a lower second voltage, and the controller can send the power supply to the power supply when it detects that the second voltage is The second instruction is sent, and the power supply can increase the output voltage based on the second instruction, so as to ensure that the at least one first load can work normally. Moreover, if the controller determines that the second voltage is greater than or equal to the undervoltage point of each first load, the power supply can keep its output voltage at a lower second voltage without sending the second command, thereby effectively Reduce power loss.

It should be understood that the controller and the power supply in the electronic equipment provided in the embodiments of the present application can be implemented by an application-specific integrated circuit (application-specific integrated circuit, ASIC), or a programmable logic device (programmable logic device, PLD). The aforementioned PLD may be a CPLD, a field-programmable gate array (field-programmable gate array, FPGA), a generic array logic (generic array logic, GAL) or any combination thereof. Alternatively, the method for adjusting the output voltage of the power supply provided by the above method embodiment may also be implemented by software. When the method for adjusting the output voltage of the power supply provided by the above method embodiment is implemented by software, the controller and the power supply may include a function to implement A software module of the steps in the above method embodiments.

An embodiment of the present application also provides a controller, the controller includes: a programmable logic circuit and/or program instructions, and the controller is used to implement the steps executed by the controller in the above method embodiments.

An embodiment of the present application also provides a power supply, the power supply includes: a programmable logic circuit and/or program instructions, and the power supply is used to implement the steps performed by the power supply in the above method embodiments.

The embodiment of the present application also provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and the instructions are executed by the processing circuit to realize the control of the output voltage performed by the controller or the power supply provided by the above-mentioned method embodiments. Adjustment method.

The embodiment of the present application also provides a computer program product containing instructions. When the computer program product is run on the processing circuit, the processing circuit is made to execute the method for adjusting the output voltage performed by the controller or the power supply provided in the method embodiment above. .

It can be understood that the processing circuit described above may refer to a processing circuit in a controller or a power supply.

The above-mentioned embodiments may be implemented in whole or in part by software, hardware, firmware or other arbitrary combinations. When implemented using software, the above-described embodiments may be implemented in whole or in part in the form of computer program products. The computer program product includes one or more computer instructions. When the computer program instructions are loaded or executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server, or data center by wired (eg, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center that includes one or more sets of available media. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media. The semiconductor medium may be a solid state drive (SSD).

The meaning of the term "at least one" in this application refers to one or more, the meaning of the term "multiple" in this application refers to two or more, for example, a plurality of nodes refers to two or more node.

The "and/or" mentioned in this article means that there may be three kinds of relationships, for example, A and/or B may mean that A exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the contextual objects are an "or" relationship.

The above is only an optional implementation mode of the application, but the protection scope of the application is not limited thereto. Any person familiar with the technical field can easily think of various equivalents within the technical scope disclosed in the application. The modifications or replacements should be covered by the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (16)

1. An electronic device, characterized in that the electronic device comprises: a power supply, a controller and at least one first load; the power supply is connected with the controller and the at least one first load respectively;

the power supply is used for outputting a first voltage;

the controller is used for acquiring the undervoltage point of each first load;

the controller is further configured to control the output voltage of the power supply to be a second voltage if the under-voltage point of each of the first loads is smaller than a voltage threshold, wherein the second voltage is smaller than the first voltage and is greater than or equal to the under-voltage point of each of the first loads.

2. The electronic device of claim 1, wherein the controller is specifically configured to send a first instruction to the power supply to modify a value of a register in the power supply if the brown-out point of each of the first loads is less than a voltage threshold;

the power supply is further configured to regulate an output voltage from the first voltage to a second voltage based on the modified value of the register.

3. The electronic device according to claim 1 or 2, wherein the controller is configured to obtain an under-voltage point for each of the first loads when the electronic device is in a standby mode.

4. The electronic device of claim 3, wherein the controller is further configured to control the output voltage of the power supply to be the first voltage if it is determined that the electronic device needs to be switched to the operating mode.

5. The electronic device of claim 4, further comprising: the power supply is also connected with the at least one second load through the switch;

the controller is further configured to control the switch to be turned off when the electronic device is in a standby mode, and control the switch to be turned on if it is determined that the electronic device needs to be switched to a working mode.

6. An electronic device, characterized in that the electronic device comprises: a power supply, a controller and at least one first load; the power supply is respectively connected with the controller and the at least one first load;

the power supply is used for outputting a second voltage;

the controller is used for acquiring the undervoltage point of each first load;

the controller is further configured to control the output voltage of the power supply to be a first voltage if the second voltage is less than an under-voltage point of any of the first loads, wherein the first voltage is greater than the second voltage and is greater than or equal to an under-voltage point of each of the first loads.

7. The method for adjusting the output voltage of the power supply is characterized by being applied to a controller in electronic equipment, wherein the electronic equipment further comprises the power supply and at least one first load, and the power supply is respectively connected with the controller and the at least one first load; the method comprises the following steps:

acquiring an undervoltage point of each first load;

and if the under-voltage point of each first load is smaller than the voltage threshold value, controlling the power supply to regulate the output voltage from a first voltage to a second voltage, wherein the second voltage is smaller than the first voltage and is larger than or equal to the under-voltage point of each first load.

8. The method of claim 7, wherein controlling the power supply to regulate the output voltage from a first voltage to a second voltage comprises: sending a first instruction to the power supply, wherein the first instruction is used for modifying the value of a register in the power supply so that the power supply adjusts the output voltage from the first voltage to the second voltage according to the modified value of the register.

9. The method of claim 7 or 8, wherein the obtaining the under-voltage point of each of the first loads comprises: and when the electronic equipment is in a standby mode, acquiring an under-voltage point of each first load.

10. The method of claim 9, further comprising:

and if the electronic equipment is determined to be required to be switched to the working mode, controlling the output voltage of the power supply to be the first voltage.

11. The method for adjusting the output voltage of the power supply is applied to a controller in electronic equipment, the electronic equipment further comprises the power supply and at least one first load, and the power supply is respectively connected with the controller and the at least one first load; the method comprises the following steps:

acquiring an undervoltage point of each first load;

and if the second voltage output by the power supply is less than the under-voltage point of any first load, controlling the output voltage of the power supply to be a first voltage, wherein the first voltage is greater than the second voltage and is greater than or equal to the under-voltage point of each first load.

12. A method for adjusting an output voltage of a power supply, applied to a power supply in an electronic device, the electronic device further comprising: the power supply is connected with the controller and the at least one first load respectively; the method comprises the following steps:

outputting a first voltage;

if a first instruction sent by the controller is received, adjusting the output voltage from the first voltage to a second voltage based on the first instruction;

wherein the first instruction is sent by the controller after determining that the under-voltage point of each first load is less than the voltage threshold, and the second voltage is less than the first voltage and greater than or equal to the under-voltage point of each first load.

13. A method for adjusting an output voltage of a power supply, the method being applied to a power supply in an electronic device, the electronic device further comprising: the power supply is connected with the controller and the at least one first load respectively; the method comprises the following steps:

outputting a second voltage;

if a second instruction sent by the controller is received, adjusting the output voltage from the second voltage to the first voltage based on the second instruction;

wherein the second command is sent by the controller after determining that the second voltage is less than the under-voltage point of any of the first loads, and the first voltage is greater than the second voltage and greater than or equal to the under-voltage point of each of the first loads.

14. A controller, characterized in that the controller comprises: programmable logic circuitry and/or program instructions for implementing the method of any one of claims 7 to 11.

15. A power supply, characterized in that the power supply comprises: programmable logic circuits and/or program instructions for implementing the method of claim 12 or 13.

16. A computer readable storage medium having stored therein instructions for execution by a processing circuit for performing the method of any one of claims 7 to 13.

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