A power supply, a power supply power control method, and a computer program product

Abstract

A power supply, a power supply power control method and a computer program product, applied to the technical field of power supply, the power supply comprises: at least two output channels, each output channel has at least two output loops; energy supply module, used for providing electric energy to at least two output channels under the limitation of maximum total power; wherein the power limit current of different output loops under the maximum total power is different; the processor is used for: determining the target output channel of open load output, obtaining the configured and effective voltage related parameters of the target output channel; determining the target output loop in the target output channel based on the voltage related parameters, so that the voltage related parameters can be met; based on the power limit current of the target output loop corresponding to each target output channel, determining the maximum limit current of the energy supply module under the maximum total power. Since the power is limited based on the actual effective output of each output channel, the power utilization rate is maximized when the power is limited.

Description

[0001] This application is a divisional application, with the parent application titled "A Power Supply, Power Control Method and Computer Program Product", application number 202610121176.5, and application date January 29, 2026. Technical Field

[0002] This application relates to the field of power supply technology, specifically to a power supply, a power supply control method, and a computer program product. Background Technology

[0003] When a power supply provides power to a load based on multiple output channels, the total power of the multiple output channels will be limited. This is usually achieved by limiting the total current of the multiple output channels.

[0004] Current technical solutions limit the total current of multiple output channels by directly limiting the power output based on the current value configured for each channel. However, there is a discrepancy between the configured output and the actual effective output of each channel, resulting in low power utilization. Therefore, a new technical solution is needed to address this issue. Summary of the Invention

[0005] The main technical problem addressed by this application is the low power utilization rate when power limiting is applied.

[0006] According to a first aspect, one embodiment provides a power supply, comprising: At least two output channels, each of which has at least two output loops, and different output loops can output different voltage ranges; A power supply module is used to provide electrical energy to the at least two output channels under the limitation of maximum total power; wherein the power limiting current of different output loops is different under the maximum total power. Processor, used for: Determine the target output channel for open-load output among the at least two output channels. For each target output channel: obtain the voltage-related parameters configured and effective for the target output channel; determine the target output loop in the target output channel based on the voltage-related parameters, such that the voltage output by the target output loop can meet the voltage-related parameters. Based on the power limiting current of the target output loop corresponding to each target output channel, the maximum limiting current of the power supply module under the maximum total power is determined.

[0007] In some embodiments, determining the maximum limiting current of the power supply module under the maximum total power based on the power limiting current of the target output loop corresponding to each of the target output channels includes: When the target output loops corresponding to each of the target output channels are the same, the maximum limiting current is the power limiting current corresponding to the target output loop; When the target output loops corresponding to each target output channel are not completely the same, the currents corresponding to different target output loops are equivalent to the currents corresponding to the same target output loop, and the maximum limiting current is the power limiting current corresponding to the same target output loop.

[0008] In some embodiments, obtaining the voltage-related parameters configured to be effective for the target output channel includes: Obtain the current output configuration information, determine the output mode of the target output channel and the voltage output parameters of the output mode based on the output configuration information, and determine the voltage-related parameters based on the output mode and the voltage output parameters.

[0009] In some embodiments, the output mode includes at least one of a constant output mode, a sequence or ladder mode, and a pulse mode, and any combination thereof; wherein, In the constant output mode, the target output channel is used to output a constant DC voltage; In the sequence or ladder mode, the target output channel is used to output a voltage with incrementing or decreasing amplitude. In the pulse mode, the target output channel is used to alternately output base voltage and peak voltage.

[0010] In some embodiments, the at least two output loops include a high-voltage output loop capable of generating a high-pulse signal; determining the voltage-related parameters based on the output mode and the voltage output parameters includes: Determine whether the output mode includes the pulse mode; If the pulse mode is included, the base voltage and peak voltage of the pulse mode are determined based on the voltage output parameters to determine whether they meet the requirements of a high pulse signal. If they do, the maximum voltage value that the base voltage can reach is obtained, and the voltage-related parameters are determined based on the maximum voltage value. If the pulse mode is not included or the high pulse signal is not satisfied, then the maximum voltage value that the output mode can achieve based on the voltage output parameters is obtained, and the voltage-related parameters are determined based on the maximum voltage value.

[0011] In some embodiments, the voltage-related parameters are determined based on the output mode and the voltage output parameters, including: Based on the output mode and the voltage output parameters, determine whether the target output channel needs to switch the output loop; If there is no need to switch the output loop, obtain the maximum voltage value that the output mode can achieve based on the voltage output parameters, and determine the voltage-related parameters based on the maximum voltage value; If it is necessary to switch the output loop, the output loop with the largest power limiting current in the output loop to be switched is identified, and the maximum voltage value that the output loop can reach based on the voltage output parameters is obtained, so as to determine the voltage related parameters based on the maximum voltage value.

[0012] In some embodiments, the power supply has a fixed voltage range mode and an automatic voltage range mode; determining the voltage-related parameters based on the maximum voltage value includes: In the fixed voltage range mode, the voltage-related parameters include a target fixed voltage range, and the maximum voltage value of the target fixed voltage range satisfies the maximum voltage value. In the automatic voltage range mode, the voltage-related parameters include the voltage effective value, which is equal to the maximum voltage value.

[0013] In some embodiments, determining the target output loop in the target output channel based on the voltage-related parameters includes: Based on the voltage range corresponding to the voltage-related parameters, determine whether the target output channel needs to switch the output loop if it meets the voltage-related parameters; If there is no need to switch the output loop, obtain the maximum voltage value that the target output channel can reach based on the voltage-related parameters, and determine the matching target output loop based on the maximum voltage value; If it is necessary to switch the output loop, the output loop with the largest power limiting current among the output loops that need to be switched is determined as the target output loop.

[0014] In some embodiments, different output loops can also output different current ranges under the corresponding voltage range; wherein the power limiting current corresponding to the output loop is greater than or equal to the maximum value of the corresponding current range.

[0015] According to a second aspect, one embodiment provides a power supply control method, comprising: The power supply module supplies power to at least two output channels under the limit of maximum total power; each output channel has at least two output loops, and different output loops can output different voltage ranges; Identify the target output channel with open load output from at least two output channels. For each target output channel: obtain the voltage-related parameters configured and effective for the target output channel; determine the target output loop in the target output channel based on the voltage-related parameters, such that the voltage output by the target output loop can meet the voltage-related parameters. Based on the power limiting current of the target output loop corresponding to each target output channel, the maximum limiting current of the power supply module under the maximum total power is determined.

[0016] According to a third aspect, one embodiment provides a computer program product including a computer program and / or instructions that, when executed by a processor, implement the method as described in the first aspect.

[0017] According to the power supply, power control method, and computer program product of the above embodiments, the target output channel for open-load output is first determined from at least two output channels. Since different output loops have different power limiting currents under maximum total power, for each target output channel, the target output loop in the target output channel is determined based on the configured and effective voltage-related parameters, so that the voltage output by the target output loop can meet the configured and effective voltage-related parameters. Then, the maximum limiting current of the power supply module under maximum total power is determined from the power limiting current of the target output loop corresponding to each target output channel. Since the actual target output loop of the output channel is determined based on the configured and effective voltage-related parameters, power limiting can be performed based on the actual target output loop of each output channel, thereby maximizing power utilization when power limiting is performed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a power supply structure according to one embodiment; Figure 2 This is a schematic diagram of a power supply structure according to another embodiment; Figure 3 This is a schematic diagram of the output channel structure of one embodiment; Figure 4 This is a schematic flowchart of a power control method according to one embodiment; Figure 5 This is a schematic flowchart illustrating another embodiment of a power control method. Detailed Implementation

[0019] The present application will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; the relevant operations can be fully understood based on the description in the specification and general technical knowledge in the art.

[0020] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0021] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0022] In some embodiments of this application, when applying total current limiting to multiple output channels, the currently effective voltage-related parameters for each output channel are first determined. Based on these parameters, the actual output loop used by each output channel is then determined. Finally, based on the power limiting current of the corresponding output loop for each output channel, the maximum limiting current under maximum total power is determined. Because the actual output loop used by each output channel is determined, power limiting is applied based on the actual effective output of each output channel, thereby maximizing power utilization during power limiting.

[0023] Some embodiments provide a power supply, which may be a source meter. Please refer to [reference needed]. Figure 1 The power supply includes a power supply module 10, at least two output channels 20, and a processor, which will be described in detail below.

[0024] The power supply module 10 is used to provide power to at least two output channels 20.

[0025] In some embodiments, the power supply module 10 has at least two output channels 20 and supplies power to these at least two output channels 20. The power supply module 10 has a maximum total power, and within the limit of this maximum total power, it supplies power to the at least two output channels 20, such that the at least two output channels 20 share the maximum total power of the power supply module 10. In some embodiments, the power supply module 10 includes a transformer, which converts the input current into electrical energy to supply power to the output channels 20.

[0026] Each output channel 20 can be used to output voltage and current to the load.

[0027] In some embodiments, each output channel 20 includes a switching circuit and at least two output loops. The switching circuit is used to select one of the output loops in the output channel 20 to be connected to the power supply module 10, so that the power supply module 10 supplies power to the currently selected output loop.

[0028] Please refer to Figure 2 In some embodiments, different output loops can output different voltage ranges and different current ranges within those voltage ranges. Specifically, when an output loop can output a higher voltage, its output current is relatively smaller, and vice versa. For example, at least two output loops include a 6V output loop and a 21V output loop, where the 6V output loop has a voltage range of 0-6V and a maximum output current of 3A. The 21V output loop has a voltage range of 0-21V and a maximum output current of 1.5A.

[0029] In some embodiments, the power of the output loop comprises two parts: the output power corresponding to the output voltage and output current, and the power consumed by the resistors included in the output loop. Specifically, when the output loop can output a higher voltage, the output current is smaller, and therefore the power consumed by the equivalent resistance is also smaller. Conversely, when the output loop can output a lower voltage, the output current is larger, and therefore the power consumed by the equivalent resistance is larger. For example, the maximum output power of the 6V output loop is 18W, while the maximum output power of the 21V output loop is 31.5W.

[0030] In some embodiments, the power limiting current of different output loops under the maximum total power of the power supply module 10 is different, wherein the power limiting current of the output loop is greater than or equal to the maximum value of the corresponding current range. That is, when the power supply module 10 supplies power to the output loop at its maximum total power, the power limiting current of the output loop makes the sum of the output power and the power consumed by the output loop equal to the maximum total power. For example, the power limiting current of the 6V output loop is 4A, and the power limiting current of the 21V output loop is 2.5A.

[0031] In some embodiments, at least two output loops also include a high-voltage output loop capable of generating high-pulse signals. For example, at least two output loops may include a 210V output loop, whose maximum current is only in the 100mA range. In some embodiments, since the power of the 210V output loop is relatively low, its power contribution can be ignored; that is, when output channel 20 switches to the 210V output loop, sufficient power is used, and power limiting is not required.

[0032] In the above embodiments, the high-voltage output loop in at least two output loops can simultaneously reach its maximum output current with any other output loop without exceeding the maximum total power, while the other two output loops cannot simultaneously reach their maximum output current, otherwise the maximum total power will be exceeded. For example, the 6V output loop and the 6V output loop cannot simultaneously reach their maximum output current, the 6V output loop and the 21V output loop cannot simultaneously reach their maximum output current, and the 21V output loop and the 21V output loop cannot simultaneously reach their maximum output current, therefore current limiting is required. However, the 210V output loop can simultaneously reach its maximum output current with either the 6V output loop or the 21V output loop, so current limiting is not required.

[0033] In some embodiments, output channel 20 includes a DAC (digital-to-analog converter) and an operational amplifier module. The DAC converts the digital signal (codeword) representing the voltage value into an analog signal output, thereby achieving an analog voltage output of the corresponding amplitude. The operational amplifier module amplifies or reduces the analog voltage output before using it as the output of output channel 20 to meet output requirements. Please refer to... Figure 3In some embodiments, the operational amplifier module includes an operational amplifier and multiple resistor groups (e.g., resistors Ri1, Ri2, Ri3, and Ri4). Each resistor group may include one or more resistors. Different resistor groups can cause the operational amplifier to operate at different amplification or reduction factors. Therefore, different resistor groups can be selected to adjust the amplifier's output, allowing different resistor groups to correspond to different output ranges of the operational amplifier. By adjusting the operational amplifier's connection to different resistor groups, the corresponding output range can be adjusted. Different resistor groups correspond to different output loops, and selecting different resistor groups is equivalent to selecting different output loops in output channel 20.

[0034] In some embodiments, the power supply has a fixed voltage range mode and an automatic voltage range mode. For example, the power supply can be configured to either a fixed voltage range mode or an automatic voltage range mode based on user input commands. In the fixed voltage range mode, the power supply maintains a fixed voltage range, causing the output channel 20 to switch its output loop according to the current voltage range to output the currently set output voltage. For example, the fixed voltage range may include 2V, 20V, and 200V ranges. In the automatic voltage range mode, the output channel 20 switches to the appropriate output loop according to the currently set output voltage and outputs the voltage.

[0035] In the above embodiments, since each output channel 20 can output different voltage ranges, the output channel 20 needs to switch to the appropriate output loop according to different situations to meet the output requirements. For example, the 6V output loop is suitable for outputting voltages below 6V, and the 21V output loop is suitable for outputting voltages between 6V and 21V. For example, when the maximum value of the fixed voltage range is less than or equal to 2V, the 6V output loop is selected; when the maximum value of the fixed voltage range is greater than 2V but less than or equal to 20V, the 21V output loop is selected; and when the maximum value of the fixed voltage range is greater than 20V but less than or equal to 200V, the 210V output loop is selected.

[0036] The processor is used at least to control the switching of the output loop in output channel 20. In some embodiments, the processor can be implemented based on devices with control functions such as FPGA, CPU, and microcontroller, which will not be described in detail here.

[0037] The above is some explanation of the power supply.

[0038] As described above, since output channel 20 needs to switch to the appropriate output loop according to different situations, and different output loops correspond to different power limiting conditions, the existing technology would result in low power utilization if power limiting is directly based on the current output value configured for each output channel 20. However, this application uses the actual output loop of output channel 20 for power limiting, thereby maximizing the utilization of output power while achieving power limitation.

[0039] Please refer to Figure 4 The power limiting process will be explained in detail below.

[0040] Step 100: Determine the target output channel 20 for the open-load output.

[0041] In some embodiments, it is first necessary to determine the target output channel 20 for open-load output in at least two output channels 20 in order to power limit the target output channel 20 for open-load output.

[0042] In some embodiments, open-load output of output channel 20 means that output channel 20 is connected to the load and supplies power to the load. Output channel 20 not being connected to the load, or output channel 20 being connected to the load but not supplying power to the load, are not considered open-load output.

[0043] In some embodiments, the target output channel 20 for supplying power to the load can be determined by the power supply configuration information, or by detecting the voltage or current of the load.

[0044] Step 200: Confirm the target output loop of target output channel 20.

[0045] In some embodiments, for each target output channel 20, the voltage-related parameters configured to be effective for the target output channel 20 are obtained, and then the target output loop in the target output channel 20 is determined based on the voltage-related parameters, so that the voltage output by the target output loop can meet the voltage-related parameters.

[0046] In some embodiments, voltage-related parameters include the current actual voltage effective value or voltage effective range. Specifically, when acquiring voltage-related parameters, the current output configuration information is first acquired, and based on the output configuration information, the output mode of the target output channel 20 and the voltage output parameters of the output mode are determined. Finally, the voltage-related parameters are determined based on the output mode and the voltage output parameters.

[0047] In some embodiments, the output modes include at least one of a constant output mode, a sequential or stepped mode, and a pulse mode, and any combination thereof. In the constant output mode, the target output channel 20 is used to output a constant DC voltage, such as a constant 1V, 2V, or 3V. In the sequential or stepped mode, the target output channel 20 is used to output a voltage with progressively increasing or decreasing amplitude steps. For example, a 10-step stepped output is configured, with each step increasing by 1V, i.e., sequentially outputting 1V, 2V, 3V, ..., 9V, 10V. After actually triggering 6 steps, the final effective output is 6V. In the pulse mode, the target output channel 20 is used to alternately output base voltage and peak voltage. For example, it first outputs DC at the base voltage, and when an output trigger signal is received, it outputs a peak voltage pulse for the duration of the pulse, before returning to DC output at the base voltage. In the combination mode of sequence or step mode and pulse mode, the target output channel 20 is still used to output voltage with step-increasing or step-decreasing amplitude, but each step of the output is output in the form of a pulse, that is, the peak voltage of the pulse takes effect with the step output value of each step.

[0048] In some embodiments, when determining the voltage-related parameters based on the output mode and the voltage output parameters, it is first determined whether the output mode includes the pulse mode.

[0049] If the pulse mode is included, the base voltage and peak voltage of the pulse mode are determined based on the voltage output parameters to determine whether they meet the requirements for a high pulse signal. If they do, the maximum voltage value that the base voltage can reach is obtained, and the voltage-related parameters are determined based on this maximum voltage value. The high pulse signal is a pulse signal whose pulse duty cycle and pulse width meet certain conditions, such as a pulse duty cycle less than or equal to 3% and a pulse width less than or equal to 2.5ms. Since the high pulse signal requires a high-voltage output loop to generate a short-duration high-voltage output, and the power of the high-voltage output loop is relatively small, power limitations do not need to be considered. Therefore, the voltage-related parameters need to be determined based on the maximum voltage value that the base voltage can reach, for example, using the maximum voltage value that the base voltage can reach as the voltage effective value, and determining the corresponding voltage effective range.

[0050] If the pulse mode is not included or the high pulse signal is not satisfied, the maximum voltage value that the output mode can achieve based on the voltage output parameters is obtained, and the voltage-related parameters are determined based on this maximum voltage value. Specifically, if the output mode is the constant output mode, the actual DC voltage value for which the setting takes effect is determined based on the voltage output parameters as the voltage effective value, and the corresponding voltage effective range is determined. If the output mode is a sequence or step mode, the maximum absolute value of the actual step output for which the setting takes effect is determined based on the voltage output parameters as the voltage effective value, and the corresponding voltage effective range is determined. If the output mode includes a pulse mode that does not satisfy the high pulse signal, the maximum value that the peak voltage can achieve is taken as the voltage effective value based on the voltage output parameters, and the corresponding voltage effective range is determined.

[0051] In some embodiments, when determining the voltage-related parameters based on the output mode and the voltage output parameters, it is first determined whether the output mode is a constant output mode. If it is a constant output mode, the actual DC voltage value for which the setting takes effect is determined based on the voltage output parameters as the voltage effective value, and the corresponding voltage effective range is determined. If it is not a constant output mode, it is determined whether a sequence or ladder mode is enabled in the output mode. If a sequence or ladder mode is enabled, it is determined whether a pulse mode is also enabled.

[0052] If only sequence or ladder mode is enabled, the maximum absolute value of the actual setting step is determined based on the voltage output parameters, which serves as the voltage effective value, and the corresponding voltage effective range is determined.

[0053] If only pulse mode is enabled, or both pulse mode and voltage output mode are enabled, the system determines whether a high pulse signal is satisfied based on the voltage output parameters. If a high pulse signal is satisfied, the maximum voltage value that the base voltage can reach is taken as the effective voltage value, and the corresponding effective voltage range is determined. If a high pulse signal is satisfied, the maximum value that the peak voltage can reach is taken as the effective voltage value, and the corresponding effective voltage range is determined.

[0054] In the above embodiments, the output voltage of each output mode is equivalent to the actual output in the constant output mode to determine the voltage effective value of each output mode, thereby enabling the determination of the target output loop corresponding to each output mode satisfying the voltage effective value.

[0055] In some embodiments, when determining the voltage-related parameters based on the output mode and the voltage output parameters, it is first determined whether the target output channel 20 needs to switch the output loop based on the output mode and the voltage output parameters.

[0056] If switching the output loop is not required, the maximum voltage value that the output mode can achieve based on the voltage output parameters is obtained, and the voltage-related parameters are determined based on this maximum voltage value. For example, this maximum voltage value is used as the voltage effective value, and the corresponding voltage effective range is determined.

[0057] If it is necessary to switch the output loop, the output loop with the largest power limiting current among the output loops to be switched is identified, and the maximum voltage value that the output loop can achieve based on the voltage output parameters is obtained, so as to determine the voltage-related parameters based on the maximum voltage value. For example, the maximum voltage value is used as the voltage effective value, and the corresponding voltage effective range is determined.

[0058] In the above embodiments, it is also possible to first determine whether it is necessary to switch the output loop, and then determine the voltage effective value of each output mode by equivalently converting it to the actual output in the constant output mode, thereby determining the target output loop corresponding to each output mode that satisfies the voltage effective value.

[0059] In some embodiments, when the power supply is in the fixed voltage range mode, the voltage-related parameters include a target fixed voltage range. The maximum voltage value of the target fixed voltage range satisfies the maximum voltage value achievable by the base voltage, or the maximum voltage value achievable by the output mode based on the voltage output parameters, or the maximum voltage value achievable by the output loop based on the voltage output parameters. When determining the target output loop in the target output channel 20 based on the target fixed voltage range, the target output loop only needs to satisfy the maximum value of the target fixed voltage range. For example, when the maximum value of the fixed voltage range is less than or equal to 2V, the 6V output loop is selected; when the maximum value of the fixed voltage range is greater than 2V and less than or equal to 20V, the 21V output loop is selected.

[0060] When the power supply is in the automatic voltage range mode, the voltage-related parameters include the voltage effective value. The voltage effective value is equal to the maximum voltage value achievable by the base voltage, or equal to the maximum voltage value achievable by the output mode based on the voltage output parameters, or equal to the maximum voltage value achievable by the output loop based on the voltage output parameters. When determining the target output loop in the target output channel 20 based on the voltage effective value, the target output loop only needs to satisfy the voltage effective value. For example, for voltage effective values ​​below 6V, the 6V output loop is selected; for voltage effective values ​​between 6V and 21V, the 21V output loop is selected.

[0061] In the above embodiments, different configured and effective voltage-related parameters can be determined based on different output modes, thereby determining the final target output loop.

[0062] In some embodiments, the target output loop can also be determined directly based on voltage-related parameters. These voltage-related parameters include the configured voltage output range. When determining the target output loop in the target output channel 20 based on the voltage-related parameters, it is first determined, based on the voltage range corresponding to the voltage-related parameters, whether the target output channel 20 needs to switch output loops if it meets the voltage-related parameters. If switching the output loop is not required, the maximum voltage value that the target output channel 20 can achieve based on the voltage-related parameters is obtained, and the matching target output loop is determined based on this maximum voltage value. That is, if the target output loop can meet the maximum voltage value that can be achieved based on the voltage-related parameters, for example, if the maximum voltage value is below 6V, the 6V output loop is selected; if the maximum voltage value is between 6V and 21V, the 21V output loop is selected.

[0063] If it is necessary to switch the output loop, the output loop with the largest power limiting current among the output loops to be switched is determined as the target output loop. For example, if the output loops to be switched include a 6V output loop and a 210V output loop, then the 6V output loop is taken as the target output loop.

[0064] In the above embodiments, the voltage output range can also be determined based on voltage-related parameters, thereby directly determining the target output loop based on the voltage output range.

[0065] Step 300: Determine the maximum limiting current based on the target output loop corresponding to each target output channel 20.

[0066] In some embodiments, the maximum limiting current of the power supply module 10 under the maximum total power is determined based on the power limiting current of the target output loop corresponding to each of the target output channels 20.

[0067] In some embodiments, when determining the maximum limiting current of the power supply module 10 under the maximum total power, if the target output loops corresponding to each of the target output channels 20 are the same, the maximum limiting current is the power limiting current corresponding to the target output loop. For example, if all are 6V output loops, then the maximum limiting current is the power limiting current corresponding to the 6V output loop. That is, when the current of each 6V output loop reaches the power limiting current, the total power of each 6V output loop is equal to the maximum total power. At this time, the sum of the currents of each 6V output loop does not exceed the power limiting current of the 6V output loop.

[0068] When the target output loops corresponding to the various target output channels 20 are not completely identical, the currents corresponding to the different target output loops are equivalent to the currents corresponding to the same target output loop, and the maximum limiting current is the power limiting current corresponding to the same target output loop. For example, when there are 6V output loops and 21V output loops, the current of the 21V output loop can be equivalent to the current of the 6V output loop. That is, under the same power conditions, the power limiting current of the 21V output loop is equivalent to the power limiting current of the 6V output loop. Therefore, the equivalent ratio between the two is 4A / 2.5A. At this time, the current of the 21V output loop is multiplied by the equivalent ratio, and then the current of the 6V output loop is added. The sum of the two does not exceed the power limiting current of the 6V output loop. That is, after current equivalence, the maximum limiting current is the power limiting current corresponding to the 6V output loop. Conversely, the current of the 6V output loop can be equivalent to the current of the 21V output loop. In this case, the equivalent ratio between the two is 2.5A / 4A. That is, after current equivalence, the maximum limiting current is the power limiting current corresponding to the 21V output loop.

[0069] In some embodiments, the current effective value of each output channel 20 can also be obtained to determine whether the sum of the currents of each output channel 20 exceeds the maximum limit current.

[0070] In the above embodiments, when the output loops are the same, the maximum limiting current is determined directly based on the power limiting current. When the output loops are not completely the same, current conversion is performed for different output loops, and then the maximum limiting current is determined based on the power limiting current, so that power limiting can be performed based on the actual output of different output loop combinations.

[0071] Some embodiments provide a power control method that can be applied to the power supply described above. Please refer to... Figure 5 The power control method may include the following steps: Step 110: Control the power supply module to supply power to at least two output channels 20 within the limit of maximum total power.

[0072] Step 210: Determine the target output channel with open load output from at least two output channels, and determine the target output loop in the target output channel.

[0073] Step 310: Determine the maximum limiting current based on the target output loop corresponding to each target output channel.

[0074] In some embodiments, each output channel 20 has at least two output loops, and different output loops can output different voltage ranges. For details, please refer to the above embodiments, which will not be repeated here.

[0075] In some embodiments, for each target output channel 20, the voltage-related parameters configured and effective for the target output channel 20 are obtained; based on the voltage-related parameters, a target output loop in the target output channel 20 is determined, such that the voltage output by the target output loop can meet the voltage-related parameters. For details, please refer to the above embodiments, which will not be repeated here.

[0076] In some embodiments, the maximum limiting current of the power supply module 10 under the maximum total power is determined based on the power limiting current of the target output loop corresponding to each of the target output channels 20. For details, please refer to the above embodiments, which will not be repeated here.

[0077] Some embodiments provide a computer program product, including a computer program and / or instructions, characterized in that the computer program and / or instructions, when executed by a processor, implement the above-described power control method.

[0078] Those skilled in the art will understand that all or part of the functions of the various methods in the above embodiments can be implemented by hardware or by computer programs. When all or part of the functions in the above embodiments are implemented by computer programs, the program can be stored in a computer-readable storage medium, which may include: read-only memory, random access memory, disk, optical disk, hard disk, etc., and the program is executed by a computer to achieve the above functions. For example, the program can be stored in the memory of a device, and when the program in the memory is executed by the processor, all or part of the above functions can be achieved. In addition, when all or part of the functions in the above embodiments are implemented by computer programs, the program can also be stored in a server, another computer, disk, optical disk, flash drive, or external hard drive, etc., and can be downloaded or copied to the memory of a local device, or the system of the local device can be updated. When the program in the memory is executed by the processor, all or part of the functions in the above embodiments can be achieved.

[0079] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A power supply, characterized by, include: At least two output channels, each of which has at least two output loops, and different output loops can output different voltage ranges; A power supply module is used to provide electrical energy to the at least two output channels under the limitation of maximum total power; wherein the power limiting current of different output loops is different under the maximum total power. Processor, used for: Determine the target output channel for open-load output among the at least two output channels. For each target output channel: obtain the voltage-related parameters configured and effective for the target output channel; determine the target output loop in the target output channel based on the voltage-related parameters, such that the voltage output by the target output loop can meet the voltage-related parameters. Based on the power limiting current of the target output loop corresponding to each of the target output channels, the maximum limiting current of the power supply module under the maximum total power is determined; The process of obtaining the effective voltage-related parameters configured for the target output channel includes: obtaining the current output configuration information, determining the output mode of the target output channel and the voltage output parameters of the output mode based on the output configuration information, and determining whether the target output channel needs to switch the output loop based on the output mode and the voltage output parameters. If there is no need to switch the output loop, obtain the maximum voltage value that the output mode can achieve based on the voltage output parameters, and determine the voltage-related parameters based on the maximum voltage value; If it is necessary to switch the output loop, the output loop with the largest power limiting current in the output loop to be switched is identified, and the maximum voltage value that the output loop can reach based on the voltage output parameters is obtained, so as to determine the voltage related parameters based on the maximum voltage value.

2. The power supply of claim 1, wherein, Based on the power limiting current of the target output loop corresponding to each of the target output channels, the maximum limiting current of the power supply module under the maximum total power is determined, including: When the target output loops corresponding to each of the target output channels are the same, the maximum limiting current is the power limiting current corresponding to the target output loop; When the target output loops corresponding to each target output channel are not completely the same, the currents corresponding to different target output loops are equivalent to the currents corresponding to the same target output loop, and the maximum limiting current is the power limiting current corresponding to the same target output loop.

3. The power supply of claim 1, wherein, The output mode includes at least one of a constant output mode, a sequence or step mode, and a pulse mode, and any combination thereof; wherein... In the constant output mode, the target output channel is used to output a constant DC voltage; In the sequence or ladder mode, the target output channel is used to output a voltage with incrementing or decreasing amplitude. In the pulse mode, the target output channel is used to alternately output base voltage and peak voltage.

4. The power supply of claim 3, wherein, The at least two output loops include a high-voltage output loop, which is capable of generating high-pulse signals; Determining the voltage-related parameters based on the output mode and the voltage output parameters includes: Determine whether the output mode includes the pulse mode; If the pulse mode is included, the base voltage and peak voltage of the pulse mode are determined based on the voltage output parameters to determine whether they meet the requirements of a high pulse signal. If they do, the maximum voltage value that the base voltage can reach is obtained, and the voltage-related parameters are determined based on the maximum voltage value. If the pulse mode is not included or the high pulse signal is not satisfied, then the maximum voltage value that the output mode can achieve based on the voltage output parameters is obtained, and the voltage-related parameters are determined based on the maximum voltage value.

5. The power supply as described in claim 1 or 4, characterized in that, The power supply has a fixed voltage range mode and an automatic voltage range mode; determining the voltage-related parameters based on the maximum voltage value includes: In the fixed voltage range mode, the voltage-related parameters include a target fixed voltage range, and the maximum voltage value of the target fixed voltage range satisfies the maximum voltage value. In the automatic voltage range mode, the voltage-related parameters include the voltage effective value, which is equal to the maximum voltage value.

6. The power supply of claim 1, wherein, Determining the target output loop in the target output channel based on the voltage-related parameters includes: Based on the voltage range corresponding to the voltage-related parameters, determine whether the target output channel needs to switch the output loop if it meets the voltage-related parameters; If there is no need to switch the output loop, obtain the maximum voltage value that the target output channel can reach based on the voltage-related parameters, and determine the matching target output loop based on the maximum voltage value; If it is necessary to switch the output loop, the output loop with the largest power limiting current among the output loops that need to be switched is determined as the target output loop.

7. The power supply of claim 1, wherein, Different output loops can also output different current ranges under the corresponding voltage range; wherein, the power limiting current corresponding to the output loop is greater than or equal to the maximum value of the corresponding current range.

8. A method of power control for a power supply, characterized by, include: The power supply module is controlled to supply power to at least two output channels within the limit of maximum total power. Each of the output channels has at least two output loops, and different output loops can output different voltage ranges; Identify the target output channel with open load output from at least two output channels. For each target output channel: obtain the voltage-related parameters configured and effective for the target output channel; determine the target output loop in the target output channel based on the voltage-related parameters, such that the voltage output by the target output loop can meet the voltage-related parameters. Based on the power limiting current of the target output loop corresponding to each of the target output channels, the maximum limiting current of the power supply module under the maximum total power is determined; The process of obtaining the effective voltage-related parameters configured for the target output channel includes: obtaining the current output configuration information, determining the output mode of the target output channel and the voltage output parameters of the output mode based on the output configuration information, and determining whether the target output channel needs to switch the output loop based on the output mode and the voltage output parameters. If there is no need to switch the output loop, obtain the maximum voltage value that the output mode can achieve based on the voltage output parameters, and determine the voltage-related parameters based on the maximum voltage value; If it is necessary to switch the output loop, the output loop with the largest power limiting current in the output loop to be switched is identified, and the maximum voltage value that the output loop can reach based on the voltage output parameters is obtained, so as to determine the voltage related parameters based on the maximum voltage value.

9. A computer program product comprising computer programs and / or instructions, characterized in that, When the computer program and / or instructions are executed by the processor, they implement the method of claim 8.

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