Power supply control method, device and power supply equipment

Abstract

This application is applicable to the field of power supply technology, and provides a power supply control method, device and power supply equipment. The power supply control method includes: in the first power supply control mode, performing power supply control on the power supply equipment based on multiple consecutive cycles, turning on the power supply circuit of the power supply equipment during the turn-on period of each cycle, and turning off the power supply circuit during the turn-off period of each cycle; wherein, the duration of the turn-on period in the subsequent cycle differs from the duration of the turn-on period in the previous cycle by a preset step size; during the turn-on period of any cycle, when the load current is detected, the first power supply control mode is exited and the second power supply control mode is entered to control the power supply circuit of the power supply equipment to remain on. This solution can not only reduce the situation of misjudging no-load of the power supply equipment, ensure meeting the power consumption requirements of various loads, expand the applicable range of the power supply equipment, but also improve the effective utilization rate of the power supply equipment.

Description

Technical Field

[0001] This application belongs to the technical field of power supplies, and particularly relates to a power supply control method, device, and power supply equipment. Background Art

[0002] A power supply equipment is a device used to store electrical energy and supply power to a load when needed. To enable the power supply equipment to detect the load and supply power to it in the first instance after the load is connected, traditional power supply equipment keeps the power supply circuit in an on state all the time after startup. When the power supply circuit is in an on state, the switching semiconductor inside the power supply circuit will inevitably generate switching losses, thus resulting in unnecessary power consumption of the power supply equipment when it is unloaded, thereby reducing the power reserve and effective utilization rate of the power supply equipment.

[0003] To reduce the power consumption of the power supply equipment when it is unloaded, the traditional method is to turn off the active components of the power supply equipment for a fixed time and then restart the active components when it is detected that the load is not connected to the output terminal of the power supply equipment. However, this method will have a situation of misjudgment of no load, thus failing to achieve timely power supply and narrowing the applicable range of the power supply equipment. Summary of the Invention

[0004] In view of this, embodiments of this application provide a power supply control method, device, and power supply equipment to reduce the situation of misjudgment of no load in the power supply equipment.

[0005] In a first aspect, embodiments of this application provide a power supply control method applied to a power supply equipment. The power supply control method includes:

[0006] In a first power supply control mode, perform power supply control on the power supply equipment based on a plurality of consecutive cycles. Turn on the power supply circuit of the power supply equipment during the on period of each cycle, and turn off the power supply circuit during the off period of each cycle; wherein, the sum of the durations of the on period and the off period of each cycle is equal to the cycle duration of each cycle, and the duration of the on period in the subsequent cycle differs from the duration of the on period in the previous cycle by a preset step size;

[0007] During the on period of any cycle, when a load current is detected, exit the first power supply control mode and enter a second power supply control mode to control the power supply circuit to remain on.

[0008] In an optional implementation manner of the first aspect, the power supply control method further includes:

[0009] During the on time of the plurality of consecutive cycles, if no load current is detected, control the power supply equipment to shut down.

[0010] In an optional implementation manner of the first aspect, the power supply control method further includes:

[0011] Execute the step of power supply control for the power supply device based on multiple consecutive cycles, and record the number of cycles.

[0012] During the on-period of the multiple consecutive cycles, if no load current is detected and the number of cycles reaches a preset number threshold, control the power supply device to shut down.

[0013] In an optional implementation manner of the first aspect, before entering the first power supply control mode, the power supply control method further includes:

[0014] Detect whether a load is connected.

[0015] If no unloaded connection is detected, enter the first power supply control mode.

[0016] If a load is detected to be connected, and the energy-saving mode of the power supply device is in the on state, and no load current is detected within a second preset duration after the load is connected, enter the first power supply control mode.

[0017] In an optional implementation manner of the first aspect, the power supply device includes an elastic component for detecting whether a load is connected; the detection of whether a load is connected includes:

[0018] Detect the trigger state of the elastic component.

[0019] If the elastic component is triggered, it is determined that a load is connected.

[0020] If the elastic component is not triggered, it is determined that no load is connected.

[0021] In an optional implementation manner of the first aspect, after the detection of whether a load is connected, the power supply control method further includes:

[0022] If a load is detected to be connected, and the energy-saving mode of the power supply device is in the on state, and the load current is detected, obtain the current value of the load current.

[0023] Determine the actual required power of the load according to the current value.

[0024] Calculate the actual ratio between the actual required power of the load and the rated output power.

[0025] Turn on the power supply circuit, and control the bus voltage of the power supply circuit according to the magnitude relationship between the actual ratio and the preset ratio.

[0026] In an alternative implementation of the first aspect, controlling the bus voltage of the power supply circuit according to the magnitude relationship between the actual ratio and the preset ratio includes:

[0027] If the actual ratio is less than the preset ratio, control the power supply circuit to reduce the bus voltage to a first preset voltage value; the first preset voltage value is less than the rated voltage value corresponding to the rated output power;

[0028] If the actual ratio is greater than or equal to the preset ratio, enter the second power supply control mode and control the power supply circuit to remain on.

[0029] In an alternative implementation of the first aspect, after detecting whether a load is connected, the power supply control method further includes:

[0030] If a load is detected to be connected and the energy-saving mode of the power supply device is in the off state, enter the second power supply control mode and control the power supply circuit to remain on.

[0031] In a second aspect, an embodiment of the present application provides a power supply control device applied to a power supply device. The power supply control device includes:

[0032] A first control unit for performing power supply control on the power supply device based on a plurality of consecutive cycles in the first power supply control mode, turning on the power supply circuit of the power supply device during the on period of each cycle, and turning off the power supply circuit during the off period of each cycle; wherein, the sum of the durations of the on period and the off period of each cycle is equal to the cycle duration of each cycle, and the duration of the on period in the subsequent cycle differs from the duration of the on period in the previous cycle by a preset step size;

[0033] A second control unit for, during the on period of any cycle, exiting the first power supply control mode and entering the second power supply control mode to control the power supply circuit to remain on when a load current is detected.

[0034] In a third aspect, an embodiment of the present application provides a power supply control device. The power supply control device includes a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the power supply control method as described in the first aspect or any alternative implementation of the first aspect.

[0035] In a fourth aspect, an embodiment of the present application provides a power supply device. The power supply device includes the power supply control device as described in the second aspect or the third aspect.

[0036] Fifth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, which when executed by a processor implements the power supply control method as described in the first aspect or any optional manner of the first aspect above.

[0037] Sixth aspect, an embodiment of the present application provides a computer program product, which when running on a power supply control device causes the power supply control device to execute the power supply control method as described in the first aspect or any optional manner of the first aspect above.

[0038] Implementing the power supply control method, device, power supply equipment, computer-readable storage medium and computer program product provided by the embodiments of the present application has the following beneficial effects:

[0039] For the power supply control method provided by the embodiment of the present application, since in the first power supply control mode, power supply control is performed on the power supply equipment based on multiple consecutive cycles, the power supply circuit of the power supply equipment is turned on during the turn-on period of each cycle, and the power supply circuit is turned off during the turn-off period of each cycle, and the sum of the durations of the turn-on period and the turn-off period of each cycle is equal to the cycle duration of each cycle, and the duration of the turn-on period in the subsequent cycle differs from the duration of the turn-on period in the previous cycle by a preset step size, that is, the durations of the turn-on periods in different cycles change step by step based on the preset step size. Therefore, it is possible to enable the power supply equipment to identify loads with a silent working mode during the turn-on periods of different cycles, so that in the case of such loads being connected, the situation of the power supply equipment misjudging no-load can be reduced, thereby avoiding the power supply equipment being unable to supply power to the misjudged loads and ensuring that the power consumption requirements of various loads are met, expanding the applicable range of the power supply equipment. In addition, since the power supply circuit is only turned on during the turn-on period of each cycle and turned off during the turn-off period of each cycle, the power loss of the power supply equipment can be reduced and the effective utilization rate of the power supply equipment can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings.

[0041] Figure 1 It is a schematic architecture diagram of a power supply equipment provided by an embodiment of the present application;

[0042] Figure 2 It is a schematic flowchart of a power supply control method provided by an embodiment of the present application;

[0043] Figure 3 Schematic flowchart of a power supply control method provided in another embodiment of the present application;

[0044] Figure 4 Schematic flowchart of a power supply control method provided in yet another embodiment of the present application;

[0045] Figure 5 Schematic diagram of the overall control logic of a power supply control method provided in an embodiment of the present application;

[0046] Figure 6 Schematic diagram of the structure of a power supply control device provided in an embodiment of the present application;

[0047] Figure 7 Schematic diagram of the structure of a power supply control device provided in another embodiment of the present application. Detailed implementation manners

[0048] It should be noted that the terms used in the implementation manner part of the embodiments of the present application are only used to explain the specific embodiments of the present application, rather than intended to limit the present application. In the description of the embodiments of the present application, unless otherwise specified, " / " means "or", for example, A / B can mean A or B; "and / or" herein is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone these three situations. In addition, in the description of the embodiments of the present application, unless otherwise specified, "a plurality of" means two or more than two, and "at least one", "one or more" means one, two or more than two.

[0049] Hereinafter, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0050] The reference to "an embodiment" or "some embodiments" etc. described in this specification means that a specific feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, the statements "in an embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments" etc. that appear in different places in this specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise particularly emphasized in other ways. The terms "include", "comprise", "have" and their variants all mean "including but not limited to", unless otherwise particularly emphasized in other ways.

[0051] A power supply control method provided by an embodiment of the present application, the execution subject is a power supply control device, and this power supply control device can be applied to a power supply device, for example, a mobile energy storage device. In specific applications, the power supply control device can be arranged inside the power supply device or outside the power supply device and connected to the power supply device. The embodiment of the present application does not make special restrictions on the setting method of the power supply control device. Taking the power supply control device arranged inside the power supply device as an example, please refer to Figure 1 , Figure 1 which is a schematic architecture diagram of a power supply device provided by an embodiment of the present application. As Figure 1 shown, in addition to including the power supply control device 101, the power supply device 10 may further include a DC power supply 102, a DC-DC (direct current-direct current) conversion circuit 103, and an AC-DC (alternating current-direct current) conversion circuit 104. Among them, the DC-DC conversion circuit 103 is connected between the DC power supply 102 and the AC-DC conversion circuit 104, and the DC-DC conversion circuit 103 is used to convert the direct current provided by the DC power supply 102 and output it. The AC-DC conversion circuit 104 is used to invert the direct current output by the DC-DC conversion circuit 103 and output alternating current. The output end of the AC-DC conversion circuit 104 can be used to connect a load.

[0052] As an example rather than a limitation, the DC-DC conversion circuit 103 can be a resonant conversion circuit. The AC-DC conversion circuit 104 can be a power factor correction (PFC) circuit. The specific structures of the DC-DC conversion circuit 103 and the AC-DC conversion circuit 104 can be set according to actual needs, and no special limitation is made here.

[0053] In the embodiment of the present application, both the DC-DC conversion circuit 103 and the AC-DC conversion circuit 104 are connected to the power supply control device 101. The power supply control device 101 can control the DC-DC conversion circuit 103 and the AC-DC conversion circuit 104, and thus realize the power supply control of the power supply device 10.

[0054] In specific applications, a target script file can be configured for the power supply control device. The target script file describes the power supply control method provided by the embodiment of the present application, and enables the power supply control device to execute the target script file when power supply control of the power supply device is required, and then execute each step in the power supply control method provided by the embodiment of the present application.

[0055] Please refer to Figure 2, which is a schematic flowchart of a power supply control method provided by an embodiment of the present application. As Figure 2 shown, the power supply control method may include S210 to S220, which are described in detail as follows:

[0056] S210: In the first power supply control mode, based on multiple consecutive cycles, perform power supply control on the power supply device. During the turn-on period of each cycle, turn on the power supply circuit of the power supply device, and during the turn-off period of each cycle, turn off the power supply circuit of the power supply device.

[0057] Among them, the power supply circuit of the power supply device refers to the circuit in the power supply device for supplying power to the load. Taking Figure 1 the power supply device shown as an example, the power supply circuit of the power supply device may be a power supply circuit composed of a DC power supply 102, a DC-DC conversion circuit 103, and an AC-DC conversion circuit 104. In other embodiments, the power supply circuit of the power supply device may also adopt other structures, and the structure of the power supply circuit is not particularly limited here.

[0058] The first power supply control mode refers to a mode of controlling the power supply circuit of the power supply device to work intermittently. Based on this, the power supply control strategy corresponding to the first power supply control mode may specifically be: perform power supply control on the power supply device based on multiple consecutive cycles. Specifically, during the turn-on period of each cycle, turn on the power supply circuit of the power supply device, and during the turn-off period of each cycle, turn off the above-mentioned power supply circuit.

[0059] In practical applications, electrical equipment such as refrigerators or air conditioners usually have a silent working mode. In the silent working mode, the main function modules of these electrical equipment will be turned off, and only the controller and some sensors are in the working state. For example, when the refrigerator reaches a specific temperature, it will enter the silent working mode. In the silent working mode, the refrigeration module of the refrigerator will be turned off, and only the controller and thermometer will work. Therefore, when the load of the power supply device is such electrical equipment with a silent working mode, it may cause the power supply control device to be unable to determine whether the power supply device is loaded with a certain probability. For example, if the refrigerator just enters the silent working mode during the turn-on period of each cycle and returns to the normal working mode during the turn-off period of each cycle, then the power supply control device will not recognize that there is a refrigerator connected to the power supply device, that is, it will think that the power supply device is not loaded, resulting in a situation of false no-load judgment.

[0060] Therefore, in order to accurately identify the loads with the silent working mode, the present application improves the duration of the on-time period and / or the duration of the off-time period in multiple consecutive cycles. Specifically, the sum of the duration of the on-time period and the duration of the off-time period in each cycle is equal to the cycle duration of each cycle, and moreover, the cycle duration of each cycle is the same. For any two adjacent cycles among multiple consecutive cycles, the duration of the on-time period in the latter cycle differs from the duration of the on-time period in the former cycle by a preset step length. That is, the preset step length is used to describe the duration difference between the on-time period of the latter cycle and the on-time period of the former cycle in any two adjacent cycles.

[0061] It should be noted that the duration of each cycle, the preset step length, and the duration of the on-time period in each cycle can all be set according to actual requirements.

[0062] Exemplarily, for loads with low requirements for time accuracy, the duration of the above cycle can be 1 second, the preset step length can be 0.1 second, and the duration of the on-time period in the first cycle can be 0.1 second. Based on this, the duration of the off-time period in the first cycle is 0.9 second; the duration of the on-time period in the second cycle is 0.2 second, and the duration of the off-time period in the second cycle is 0.8 second; the duration of the on-time period in the third cycle is 0.3 second, and the duration of the off-time period in the third cycle is 0.7 second, and so on.

[0063] For loads with high requirements for time accuracy, the above cycle can be 0.1 second, the preset step length can be 0.01 second, and the duration of the on-time period in the first cycle can be 0.01 second. Based on this, the duration of the off-time period in the first cycle is 0.09 second; the duration of the on-time period in the second cycle is 0.02 second, and the duration of the off-time period in the second cycle is 0.08 second; the duration of the on-time period in the third cycle is 0.03 second, and the duration of the off-time period in the third cycle is 0.07 second, and so on.

[0064] In the embodiments of the present application, the timing for the power supply control device to enter the first power supply control mode may include, but is not limited to: (1) when the power supply device is powered on and no load is connected; (2) when the power supply device is powered on, a load is connected, the energy-saving mode of the power supply device is in the on state, and no load current is detected.

[0065] S220: During the on-time period of any cycle, when a load current is detected, exit the first power supply control mode, enter the second power supply control mode, and control the power supply circuit to remain on.

[0066] In the embodiments of the present application, while the power supply control device performs power supply control on the power supply device based on multiple consecutive cycles, it can also detect the load current during the turn-on period of each cycle, that is, determine whether the load current is detected. In an embodiment of the present application, if the power supply control device detects a load current during the turn-on period of a certain cycle, it indicates that a load is connected to the power supply device during the turn-on period of this cycle, and the actual required power of this load is not 0, that is, it indicates that the power supply device is in a non-no-load state. At this time, the power supply control device exits the first power supply control mode, that is, the power supply control device no longer performs the step of performing power supply control on the power supply device based on multiple consecutive cycles. At the same time, the power supply control device enters the second power supply control mode.

[0067] Among them, the second power supply control mode refers to a mode in which the power supply circuit of the power supply device is controlled to work continuously, and the power supply circuit is controlled to remain on in the second power supply control mode. Based on this, after the power supply control device switches from the first power supply control mode to the second power supply control mode, it controls the power supply circuit to remain on.

[0068] In the above solution, since in the first power supply control mode, power supply control is performed on the power supply device based on multiple consecutive cycles, the power supply circuit of the power supply device is turned on during the turn-on period of each cycle, and the power supply circuit is turned off during the turn-off period of each cycle. Moreover, the duration of the turn-on period in the latter cycle differs from the duration of the turn-on period in the previous cycle by a preset step length, that is, the duration of the turn-on period in different cycles changes step by step based on the preset step length. For example, if the trigger time of the silent working mode of the load is accurate to 0.1 second, the preset step length can be set to 0.1 second. If the trigger time of the silent working mode of the load is accurate to 0.01 second, the preset step length can be set to 0.01 second. Therefore, it is possible to enable the power supply device to identify the load with the silent working mode during the turn-on period of different cycles, so that in the case of such a load being connected, the situation of the power supply device misjudging no load can be reduced, thereby avoiding the power supply device being unable to supply power to the misjudged load, ensuring that the power consumption requirements of various loads are met, and expanding the applicable range of the power supply device. In addition, since the power supply circuit is only turned on during the turn-on period of each cycle and turned off during the turn-off period of each cycle, the power loss of the power supply device can be reduced, and the effective utilization rate of the power supply device can be improved.

[0069] In another embodiment of the present application, the power supply control method may further include the following steps:

[0070] During the turn-on periods of multiple consecutive cycles, if no load current is detected, control the power supply device to shut down.

[0071] In this embodiment, when the power supply control device performs power supply control on the power supply device based on multiple consecutive cycles, if no load current is detected during the turn-on periods of multiple consecutive cycles, it indicates that no load is connected to the power supply device during these multiple consecutive cycles, or it indicates that a load is connected to the power supply device during these multiple consecutive cycles, but the actual required power of the load connected to the power supply device is relatively low, that is, it indicates that the power supply device is in an idle state. At this time, the power supply control device controls the power supply device to shut down.

[0072] In the above solution, when the power supply control device does not detect load current during multiple consecutive cycles, it indicates that the power supply device is in an idle state. At this time, the power supply control device controls the power supply device to shut down, which can prevent the power supply device from operating in the idle state and reduce the idle loss of the power supply device.

[0073] Please refer to Figure 3 , in another embodiment of the present application, the power supply control method may further include S320 - S330, which are described in detail as follows:

[0074] S320: In the first power supply control mode, repeatedly execute the step of performing power supply control on the power supply device based on multiple consecutive cycles, and record the number of repetitions.

[0075] In this embodiment, the number of multiple consecutive cycles is limited, and the number of multiple consecutive cycles can be set according to actual needs. For example, it can be 9.

[0076] Therefore, in the first power supply control mode, after the power supply control device completes one power supply control on the power supply device based on multiple consecutive cycles, it can continue to perform the next power supply control on the power supply device based on multiple consecutive cycles, that is, in the first power supply control mode, the power supply control device can repeatedly execute the step of performing power supply control on the power supply device based on multiple consecutive cycles.

[0077] When the power supply control device repeatedly executes the step of performing power supply control on the power supply device based on multiple consecutive cycles, it can record the number of repetitions of this step.

[0078] In a possible implementation, when the power supply control device repeatedly executes the step of performing power supply control on the power supply device based on multiple consecutive cycles, it can also detect whether an electrical device is connected after each execution of this step. In the case where no electrical device is connected, increment the number of consecutive repetitions of this step by 1 and continue to execute the next time this step; in the case where an electrical device is connected, further determine whether load current is detected. In the case where no load current is detected, increment the number of consecutive repetitions of this step by 1 and continue to execute the next time this step.

[0079] S330: If no load current is detected during the turn-on periods of multiple consecutive cycles and the above-mentioned number of cycles reaches the preset number threshold, then control the power supply device to shut down.

[0080] In this embodiment, if no load current is detected during the turn-on periods of multiple consecutive cycles, the power supply control device further determines whether the number of cycles of the above-mentioned steps reaches the preset number threshold. When the number of times of the above-mentioned steps reaches the preset number threshold, control the power supply device to shut down.

[0081] Among them, the preset number threshold can be determined according to the preset duration of the first power supply control mode, the number of multiple cycles, and the duration of each cycle. By limiting the duration of the first power supply control mode, it is possible to prevent the power supply device from remaining in the first power supply control mode all the time under no-load conditions, resulting in increased power consumption of the electrical equipment.

[0082] Exemplarily, if the preset duration of the first power supply control mode is 15 minutes, the number of multiple cycles is 9, and the duration of each cycle is 1 second, then it takes 9 seconds to execute a step of power supply control for the power supply device based on multiple consecutive cycles. 15 minutes can execute this step 100 times in a loop. Therefore, the preset number threshold can be 100.

[0083] In other embodiments, if the power supply control device detects a load current during the turn-on period of any cycle, it can enter the second power supply control mode and perform power supply control on the power supply device based on the actual ratio between the actual required power of the load and the rated output power of the power supply device. It should be noted that the specific process of the power supply control device performing power supply control on the power supply device based on this actual ratio can refer to the relevant descriptions in the subsequent embodiments and will not be elaborated here.

[0084] In this embodiment, after the power supply control device enters the second power supply control mode, it can reset the number of cycles of the above-mentioned steps to 0.

[0085] In the above solution, by setting the preset number threshold and controlling the power supply device to shut down when the number of cycles of the step of performing power supply control on the power supply device based on multiple consecutive cycles reaches this preset number threshold, it is possible to prevent the power supply circuit from being intermittently turned on all the time when the power supply device is in a no-load state, further reducing the power consumption of the power supply device under no-load conditions and improving the effective utilization rate of the power supply device.

[0086] Please refer to Figure 4 , in another embodiment of the present application, before Figure 2 S210 in the corresponding embodiment, or before Figure 3 S320 in the corresponding embodiment, the power supply control method may further include S410 to S430, which are described in detail as follows:

[0087] S410: Detect whether a load is connected.

[0088] The power supply control device can detect whether a load is connected to the power supply device after the power supply device is powered on.

[0089] In a possible implementation manner, in order to detect the load in time when the load is connected, the power supply control device can detect whether a load is connected to the power supply device in real time after the power supply device is powered on.

[0090] In another possible implementation manner, in order to reduce the power consumption of the power supply device, the power supply control device can detect whether a load is connected to the power supply device at preset time intervals after the power supply device is powered on. Wherein, the preset time interval can be set according to actual requirements and is not particularly limited herein.

[0091] In yet another possible implementation manner, in order to achieve effective detection of the load and reduce the false judgment rate of load detection, an elastic component for detecting whether the load is connected can be provided on the power supply device, and the power supply control device can determine whether a load is connected according to the trigger state of the elastic component.

[0092] Among them, the elastic component can include but is not limited to a shrapnel, a spring or a spring pin, etc. The trigger state of the elastic component can include being triggered and not being triggered.

[0093] Based on this, S410 can include the following steps:

[0094] Detect the trigger state of the elastic component;

[0095] If the elastic component is triggered, it is determined that a load is connected;

[0096] If the elastic component is not triggered, it is determined that no load is connected.

[0097] In one embodiment, the power supply control device can determine that the elastic component is triggered when it detects that the elastic component is squeezed; and determine that the elastic component is not triggered when it detects that the elastic component is not squeezed.

[0098] In another embodiment, a contact corresponding to the elastic component can also be provided on the power supply device. Based on this, the power supply control device can determine that the elastic component is triggered when it detects that the elastic component is in contact with the contact; and determine that the elastic component is not triggered when it detects that the elastic component is not in contact with the contact.

[0099] It should be noted that after the power supply device is powered on, the power supply control device can first enter the second power supply control mode. In the second power supply control mode, the power supply control device controls the power supply circuit to turn on and controls the power supply circuit to maintain the bus voltage at the rated voltage value, that is, controls the power supply circuit to be in a fully working state. Among them, the bus voltage of the power supply circuit can refer to the voltage output by the DC-DC conversion circuit in the power supply circuit. The rated voltage value refers to the voltage value corresponding to the rated output power of the power supply device.

[0100] S420: If no load is detected to be connected, enter the first power supply control mode.

[0101] In a possible implementation manner, the power supply control device can directly enter the first power supply control mode when it detects that no load is connected to the power supply device.

[0102] In another possible implementation manner, when the power supply device detects that no load is connected, it can continuously detect whether a load is connected. If a load is detected to be connected within the third preset time period, the power supply control device enters the first power supply mode; if no load is connected within the third preset time period, the power supply control device controls the power supply device to shut down. Among them, the third preset time period can be set according to actual needs and is not particularly limited here.

[0103] S430: If a load is detected to be connected, and the energy-saving mode of the power supply device is in the on state, and no load current is detected within the second preset time period after the load is connected, enter the first power supply control mode.

[0104] In this embodiment, an energy-saving mode that can be selected by the user is pre-configured in the power supply device. Based on this, when a load is connected to the power supply device, the user can choose whether to turn on the energy-saving mode according to actual needs. For example, when the load connected to the power supply device is a load without a silent working mode, the user can choose to turn on the energy-saving mode to reduce the power consumption of the power supply device.

[0105] Optionally, the user can operate a mode selection control in a terminal device (such as a mobile phone) connected to the power supply device to turn on or off the energy-saving mode. Among them, the mode selection control is a software-form button, and the mode selection control can be set in an application installed on the terminal device.

[0106] Optionally, the user can also operate a mode selection button provided on the power supply device to turn on or off the energy-saving mode. Among them, the mode selection button is a physical-form button.

[0107] Based on this, when the power supply control device detects that a load is connected, it can detect whether the energy-saving mode of the power supply device is in the on state and determine whether a load current is detected.

[0108] In a possible implementation, when a load is connected and the energy-saving mode of the power supply device is in the on state, if no load current is detected, it is continuously determined whether a load current is detected. If no load current is detected within a second preset duration after the load is connected to the power supply device, it indicates that the power supply device is in an unloaded state. At this time, the power supply control device enters the first power supply control mode.

[0109] Among them, the second preset duration can be set according to actual needs and is not particularly limited herein. Exemplarily, the second preset duration can be 300 seconds.

[0110] In another possible implementation, when a load is connected and the energy-saving mode of the power supply device is in the on state, if a load current is detected, it indicates that the power supply device is in a non-unloaded state. At this time, the power supply control device can execute S440 to S470 in the subsequent embodiments.

[0111] In yet another possible implementation, when it is detected that a load is connected and the energy-saving mode of the power supply device is in the off state, the power supply control device can execute S480 in the subsequent embodiments.

[0112] In the above solutions, since it is determined whether a load is connected based on the trigger state of the elastic component provided on the power supply device, the accuracy of load connection detection can be improved; since when no load is connected, or when a load is connected and the energy-saving mode of the power supply device is in the on state and no load current is detected within the second preset duration after the load is connected, it indicates that the power supply device is in an unloaded state. At this time, the power supply control device enters the first power supply control mode to control the intermittent opening of the power supply circuit, so the power consumption of the power supply device when it is unloaded can be reduced, and the power reserve and effective utilization rate of the power supply device can be improved.

[0113] Please continue to refer to Figure 4 , in another embodiment of the present application, after S410, the power supply control method may further include S440 to S470, which are described in detail as follows:

[0114] S440: When it is detected that a load is connected, the energy-saving mode of the power supply device is in the on state, and a load current is detected, obtain the current value of the load current.

[0115] In this embodiment, the current value of the load current refers to the value of the current flowing through the load.

[0116] In a possible implementation, a current acquisition circuit for acquiring the current value of the load current may also be provided in the power supply device. By way of example and not limitation, the circuit acquisition circuit may include a resistor connected in series in the load circuit.

[0117] Based on this, when a load is connected, the energy-saving mode of the power supply device is in the on state, and the load current is detected, the power supply control device can obtain the current value of the load current collected by the current acquisition circuit.

[0118] S450: Determine the actual required power of the load according to the current value of the load.

[0119] In this embodiment, after the power supply control device obtains the current value of the load current, it can calculate the actual required power of the load according to this current value. Among them, the method of calculating the actual required power of the load according to the current value of the load can adopt the existing method, and it will not be elaborated here.

[0120] S460: Calculate the actual ratio between the actual required power of the load and the rated output power.

[0121] In this embodiment, the power supply control device can determine the ratio of the actual required power of the load to the rated output power of the power supply device as the actual ratio.

[0122] Exemplarily, if the actual required power of the load is 9.3 watts and the rated output power of the power supply device is 200 watts, then the power supply control device determines 9.3 / 200 = 4.65% as the actual ratio. If the actual required power of the load is 30 watts and the rated output power of the power supply device is 200 watts, then the power supply control device determines 30 / 200 = 15% as the actual ratio.

[0123] S470: Turn on the power supply circuit and control the bus voltage of the power supply circuit according to the magnitude relationship between the actual ratio and the preset ratio.

[0124] In one possible implementation, the power supply control device can turn on the power supply circuit when the load current is detected. In this implementation, the power supply control device can obtain the current value of the load current and determine the above actual ratio while turning on the power supply circuit; or, the power supply control device can obtain the current value of the load current and determine the above actual ratio after turning on the power supply circuit.

[0125] In another possible implementation, when the power supply control device detects the load current, it can first obtain the current value of the load current, and then turn on the power supply circuit after determining the above actual ratio based on the current value of the load current. This embodiment does not make a special limitation on the turning-on timing of the power supply circuit.

[0126] In this embodiment, after obtaining the actual ratio, the power supply control device can compare the actual ratio with the preset ratio to determine the magnitude relationship between the actual ratio and the preset ratio, and control the bus voltage of the power supply circuit based on this magnitude relationship.

[0127] Among them, the preset ratio is used to distinguish whether the power supply device is in an ultra-light load state or a normal load state. In specific applications, the preset ratio may vary according to the different application scenarios of the power supply device. Exemplarily, the preset ratio may be 5%. Based on this, if the actual ratio is 4.65%, since 4.65% is less than 5%, the power supply control device can control the power supply circuit to lower its bus voltage; if the actual ratio is 15%, since 15% is greater than 5%, the power supply control device can enter the second power supply control mode. In the second power supply control mode, control the power supply circuit to remain on and control the power supply circuit to maintain its bus voltage at the rated voltage value.

[0128] Specifically, when the above actual ratio is less than the preset ratio, it indicates that the actual required power of the load is low, that is, it indicates that the power supply device is in an ultra-light load state; when the above actual ratio is greater than or equal to the preset ratio, it indicates that the actual required power of the load is normal, that is, it indicates that the power supply device is in a normal load state.

[0129] Based on this, in a possible implementation manner, the step of controlling the bus voltage of the power supply circuit according to the magnitude relationship between the actual ratio and the preset ratio may specifically include:

[0130] If the actual ratio is less than the preset ratio, control the power supply circuit to lower the bus voltage to a first preset voltage value;

[0131] If the actual ratio is greater than or equal to the preset ratio, enter the second power supply control mode and control the power supply circuit to remain on.

[0132] Among them, the first preset voltage value is less than the rated voltage value corresponding to the above-mentioned rated output power. That is, when the actual ratio is less than the preset ratio, the power supply control device can control the power supply circuit to reduce the voltage value output by the DC-DC conversion circuit to the first preset voltage value.

[0133] In this embodiment, after controlling the power supply circuit to reduce the voltage value output by the DC-DC conversion circuit to the first preset voltage value, this application can continuously and cyclically enter S410 to detect the access situation of the load.

[0134] In all embodiments of this application, after the power supply control device enters the second power supply control mode, while controlling the power supply circuit to remain on, it also controls the power supply circuit to maintain the bus voltage at the above-mentioned rated voltage value, that is, controls the power supply circuit to be in a fully working state.

[0135] In this embodiment, the power supply control device can continuously and cyclically enter S410 in the second power supply control mode to detect the access situation of the load.

[0136] In the above solution, when the power supply device is in an ultra-light load state, by reducing the voltage value of the bus voltage, a part of the power consumption of the power supply device in the ultra-light load state can be reduced, and the effective utilization rate of the power supply device can be improved.

[0137] Please continue to refer to Figure 4 , in another embodiment of the present application, after S410, the power supply control method may further include S480, which is described in detail as follows:

[0138] S480: If it is detected that a load is connected and the energy-saving mode of the power supply device is in the off state, enter the second power supply control mode, and control the power supply circuit to remain on.

[0139] In this embodiment, when a load is connected and the energy-saving mode of the power supply device is in the off state, the power supply control device enters the second power supply control mode.

[0140] In the above solution, when a load is connected but the energy-saving mode of the power supply device is in the off state, at this time, enter the second power supply control mode, control the power supply circuit to remain on, and make the power supply circuit in a fully working state, so as to ensure that the power supply circuit can supply power to the load normally.

[0141] The following combines the above various method embodiments and Figure 5 , and details the overall control logic of the power supply control method provided by the embodiments of the present application:

[0142] As Figure 5 shown, after the power supply device is powered on, the power supply control device enters S501.

[0143] S501: Enter the second power supply control mode, control the power supply circuit of the power supply device to turn on, and control the power supply circuit to maintain its bus voltage at the rated voltage value. After that, the power supply control device enters S502.

[0144] S502: Detect whether a load is connected through an elastic member.

[0145] If so, enter S503; if not, enter S507.

[0146] S503: Determine whether the energy-saving mode of the power supply device is in the on state.

[0147] If so, enter S504; if not, enter S508.

[0148] S504: Determine whether a load current is detected.

[0149] If so, enter S505; if not, enter S509.

[0150] S50 5: Determine whether the actual ratio is greater than or equal to the preset ratio.

[0151] If so, return to S501; if not, enter S506.

[0152] S506: Turn on the power supply circuit and control the power supply circuit to reduce the bus voltage to the first preset voltage value. Then, return to S502.

[0153] S507: Enter the first power supply control mode. Then, enter S513.

[0154] S508: Remain in the second power supply control mode.

[0155] S509: Start timing from 0. Then, enter S510.

[0156] S510: Determine whether the timing time has reached the second preset duration.

[0157] If so, return to S507; if not, enter S511.

[0158] S511: Increment the timing time by 1. Then, enter S512.

[0159] S512: Determine whether the load current is detected.

[0160] If so, return to S505; if not, return to S510.

[0161] S513: Set the cycle number counter1 = 0 and set the loop count counter2 = 0. Then, enter S514.

[0162] S514: counter1 = counter1 + 1. Then, enter S515.

[0163] S515: Determine whether counter1 is greater than the number of multiple consecutive cycles.

[0164] If so, enter S516; if not, return to S514.

[0165] S516: counter1 = 0. Then, enter S517.

[0166] S517: counter2 = counter2 + 1. Then, enter S518.

[0167] S518: Perform power supply control on the power supply device based on multiple consecutive cycles. Then, enter S519.

[0168] S519: Detect whether a load is connected through the elastic component.

[0169] If so, go to S520; if not, go to S521.

[0170] S520: Determine whether the load current is detected.

[0171] If so, return to S505; if not, go to S521.

[0172] S521: Determine whether counter2 is greater than the preset number threshold.

[0173] If so, go to S522; if not, return to S514.

[0174] S522: Control the power supply device to shut down.

[0175] It can be understood that the magnitudes of the sequence numbers of the steps in the above embodiments do not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0176] Based on the power supply control method provided in the above embodiments, an embodiment of a power supply control device for implementing the above method embodiment is further given in the embodiments of the present invention. Please refer to Figure 6 , which is a schematic structural diagram of a power supply control device provided in an embodiment of the present application. For the sake of convenience of description, only the parts related to this embodiment are shown. As Figure 6 shown, the power supply control device 60 may include a first control unit 601 and a second control unit 602. Among them:

[0177] The first control unit 601 is used to perform power supply control on the power supply device based on multiple consecutive cycles in the first power supply control mode. The power supply circuit of the power supply device is turned on during the turn-on period of each cycle, and the power supply circuit is turned off during the turn-off period of each cycle; wherein, the sum of the durations of the turn-on period and the turn-off period of each cycle is equal to the cycle duration of each cycle, and the duration of the turn-on period in the subsequent cycle differs from the duration of the turn-on period in the previous cycle by a preset step size.

[0178] The second control unit 602 is used to exit the first power supply control mode and enter the second power supply control mode during the turn-on period of any cycle when a load current is detected, and control the power supply circuit to remain on.

[0179] Optionally, the first control unit 601 is further used to control the power supply device to shut down if no load current is detected during the turn-on periods of multiple consecutive cycles.

[0180] Optionally, the first control unit 601 is further used for:

[0181] Execute the steps of power supply control for the power supply device based on multiple consecutive cycles, and record the number of cycles.

[0182] During the turn-on time of multiple consecutive cycles, if no load current is detected and the number of cycles reaches the preset number threshold, control the power supply device to shut down.

[0183] Optionally, the power supply control device 60 further includes a load detection unit.

[0184] The load detection unit is used to detect whether a load is connected.

[0185] The first control unit 601 is specifically used to enter the first power supply control mode if no load connection is detected.

[0186] The first control unit 601 is further used to enter the first power supply control mode if a load is detected to be connected, the energy-saving mode of the power supply device is in the on state, and no load current is detected within the second preset duration after the load is connected.

[0187] Optionally, the power supply device includes an elastic component for detecting whether a load is connected; the load detection unit is specifically used for:

[0188] Detect the trigger state of the elastic component;

[0189] If the elastic component is triggered, it is determined that a load is connected;

[0190] If the elastic component is not triggered, it is determined that no load is connected.

[0191] Optionally, the power supply control device 60 further includes a current value acquisition unit, a power calculation unit, and a ratio determination unit. Among them:

[0192] The current value acquisition unit is used to acquire the current value of the load current if a load is detected to be connected, the energy-saving mode of the power supply device is in the on state, and the load current is detected.

[0193] The power calculation unit is used to determine the actual required power of the load according to the current value.

[0194] The ratio determination unit is used to calculate the actual ratio between the actual required power of the load and the rated output power of the power supply device.

[0195] The second control unit 602 is specifically used to turn on the power supply circuit and control the bus voltage of the power supply circuit according to the magnitude relationship between the actual ratio and the preset ratio.

[0196] Optionally, the second control unit 602 is specifically used for:

[0197] If the actual ratio is less than the preset ratio, the power supply circuit is controlled to reduce the bus voltage to a first preset voltage value; the first preset voltage value is less than the rated voltage value corresponding to the rated output power.

[0198] If the actual ratio is greater than or equal to the preset ratio, enter the second power supply control mode, and control the power supply circuit to remain on.

[0199] Optionally, the second control unit 601 is further configured to enter the second power supply control mode and control the power supply circuit to remain on if it detects that a load is connected and the energy-saving mode of the power supply device is in the off state.

[0200] It should be noted that for the information interaction, execution process, etc. between the above units, since they are based on the same concept as the method embodiment of the present application, their specific functions and the technical effects brought about can be specifically referred to the method embodiment part, and will not be elaborated here.

[0201] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the above division of each functional unit is used as an example. In practical applications, the above functions can be allocated to different functional units according to needs, that is, the internal structure of the power supply control device is divided into different functional units to complete all or part of the functions described above. Each functional unit in the embodiment can be integrated into a processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of the functional units are only for the convenience of mutual distinction and do not limit the protection scope of the present application. The specific working process of the units in the above system can refer to the corresponding process in the foregoing method embodiment and will not be elaborated here.

[0202] Please refer to Figure 7 , Figure 7 which is a schematic structural diagram of a power supply control device provided by an embodiment of the present application. As Figure 7 shown, the power supply control device 7 provided in this embodiment may include: a processor 70, a memory 71, and a computer program 72 stored in the memory 71 and executable on the processor 70, such as the program corresponding to the power supply control method. When the processor 70 executes the computer program 72, the steps in the above power supply control method embodiment are implemented, such as Figures 2 to 5 each step in. Or, when the processor 70 executes the computer program 72, the functions of each module / unit in the above power supply control device embodiment are implemented, such as Figure 6 the functions of the units 601 and 602 shown.

[0203] Exemplarily, the computer program 72 can be divided into one or more modules / units, and one or more modules / units are stored in the memory 71 and executed by the processor 70 to complete the present application. One or more modules / units can be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the computer program 72 in the power supply control device 7. For example, the computer program 72 can be divided into a first control unit and a second control unit. For the specific functions of each unit, please refer to Figure 6 the relevant descriptions in the corresponding embodiments and will not be elaborated here.

[0204] Those skilled in the art can understand that Figure 7 merely examples of the power supply control device 7 do not constitute a limitation to the power supply control device 7, and it may include more or fewer components than shown in the figure, or combine some components, or different components.

[0205] The processor 70 can be a central processing unit (CPU), or can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0206] The memory 71 can be an internal storage unit of the power supply control device 7, such as the hard disk or memory of the power supply control device 7. The memory 71 can also be an external storage device of the power supply control device 7, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, or a flash card equipped on the power supply control device 7, etc. Further, the memory 71 can also include both the internal storage unit and the external storage device of the power supply control device 7. The memory 71 is used to store the computer program and other programs and data required by the power supply control device. The memory 71 can also be used to temporarily store the data that has been output or will be output.

[0207] The embodiments of the present application also provide a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0208] An embodiment of the present application provides a computer program product. When the computer program product runs on a power supply control device, the power supply control device is enabled to execute the steps in the above various method embodiments when executed.

[0209] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For parts not detailed or recorded in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0210] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. A professional person skilled in the art can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of the present application.

[0211] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A power supply control method, applied to a power supply device, characterized in that, The power supply control method includes: If no load is detected to be connected, enter the first power supply control mode; or if a load is detected to be connected, and the energy-saving mode of the power supply device is in the on state, and no load current is detected within a second preset duration after the load is connected, enter the first power supply control mode; In the first power supply control mode, perform power supply control on the power supply device based on multiple consecutive cycles. Turn on the power supply circuit of the power supply device during the on period of each cycle, and turn off the power supply circuit during the off period of each cycle; wherein, the sum of the durations of the on period and the off period of each cycle is equal to the cycle duration of each cycle, and the duration of the on period in the subsequent cycle differs from the duration of the on period in the previous cycle by a preset step size; During the on period of any cycle, if a load current is detected, exit the first power supply control mode and enter the second power supply control mode to control the power supply circuit to remain on.

2. The power supply control method according to claim 1, wherein, It further includes: During the on periods of the multiple consecutive cycles, if no load current is detected, control the power supply device to shut down.

3. The power supply control method according to claim 1, wherein It further includes: In the first power supply control mode, repeatedly perform the step of performing power supply control on the power supply device based on multiple consecutive cycles, and record the number of repetitions; During the on periods of the multiple consecutive cycles, if no load current is detected and the number of repetitions reaches a preset number threshold, control the power supply device to shut down.

4. The power supply control method according to claim 1, wherein The power supply device includes an elastic component for detecting whether a load is connected; detecting whether a load is connected includes: Detect the trigger state of the elastic component; If the elastic component is triggered, it is determined that a load is connected; If the elastic component is not triggered, it is determined that no load is connected.

5. The power supply control method according to claim 3, wherein After detecting whether a load is connected, the power supply control method further includes: If a load is detected to be connected, and the energy-saving mode of the power supply device is in the on state, and the load current is detected, obtain the current value of the load current; Determine the actual required power of the load according to the current value; Calculate the actual ratio between the actual required power of the load and the rated output power; Turn on the power supply circuit, and control the bus voltage of the power supply circuit according to the magnitude relationship between the actual ratio and the preset ratio.

6. The power supply control method according to claim 5, wherein The controlling the bus voltage of the power supply circuit according to the magnitude relationship between the actual ratio and the preset ratio includes: If the actual ratio is less than the preset ratio, control the power supply circuit to reduce the bus voltage to a first preset voltage value; the first preset voltage value is less than the rated voltage corresponding to the rated output power; If the actual ratio is greater than or equal to the preset ratio, enter the second power supply control mode and control the power supply circuit to remain on.

7. The power supply control method according to claim 3, wherein After detecting whether a load is connected, the power supply control method further includes: If a load is detected to be connected, and the energy-saving mode of the power supply device is in the off state, enter the second power supply control mode and control the power supply circuit to remain on.

8. A power supply control device, applied to a power supply equipment, characterized in that, The power supply control device includes: The first control unit is configured to enter the first power supply control mode if no load is detected to be connected; or enter the first power supply control mode if a load is detected to be connected, the energy-saving mode of the power supply device is in an on state, and no load current is detected within a second preset duration after the load is connected. The first control unit is further configured to, in the first power supply control mode, perform power supply control on the power supply device based on multiple consecutive cycles. The power supply circuit of the power supply device is turned on during the on period of each cycle, and the power supply circuit is turned off during the off period of each cycle. Wherein, the sum of the durations of the on period and the off period of each cycle is equal to the cycle duration of each cycle, and the duration of the on period in the subsequent cycle differs from the duration of the on period in the previous cycle by a preset step size. The second control unit is configured to, during the on period of any cycle, exit the first power supply control mode and enter the second power supply control mode to control the power supply circuit to remain on when a load current is detected.

9. A power supply device, characterized in that, It includes the power supply control device according to claim 8.

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