CN113691102A - Multi-power supply control method and multi-power supply - Google Patents
Multi-power supply control method and multi-power supply Download PDFInfo
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- H—ELECTRICITY
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- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
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Abstract
The invention discloses a multi-power supply control method, which is applied to a control level and comprises the steps of obtaining load information of a plurality of power supplies; determining the load levels of a plurality of power supplies according to the load information; determining a required number of power stages in the plurality of power supplies according to the load level; and randomly selecting power levels according to the required number to work. When the preset number of power levels are selected to work, the power levels are not selected according to a fixed sequence any more, but are selected randomly to work, so that the condition that the service life of one power level is reduced due to long-time work is avoided, each power level in a plurality of power supplies can be guaranteed to have a longer service life, and the reliability of the plurality of power supplies is enhanced. The invention also provides a multi-phase power supply which also has the beneficial effects.
Description
Technical Field
The invention relates to the technical field of power supply control, in particular to a multi-power supply control method and a multi-power supply.
Background
The important characteristic of the switching power supply is that the switching power supply is periodically switched, for example, a Buck chip, and after chopping input of high voltage, the Buck chip forms good low-voltage direct current output through rectification and filtering of an output inductor and an output capacitor. These basic switch controls all rely on power mosfets. The switch Mosfet is directly faced with a larger pulse pressure, and although it is considered at the beginning of the design how high frequency and under what voltage pulse a Mosfet is applied, so that such a bad waveform is very easy for an applicable Mosfet, as the working time is prolonged, a Mosfet will be gradually aged by a very long time working. The key point for ensuring the health of the mosfet is to ensure the normal operation of the switching power supply.
The AutoPhase is a technology commonly used for a Multiphase power supply (multinomial power supply), when output current is very small, the Multiphase switching power supply can only turn on one of all power stages, and as the output current increases, the switching power supply can turn on all power stages one by one, and finally, full power stage output is stabilized. Driving one power stage consumes a certain amount of energy, turning on all power stages with a small load current is a waste, and the energy required to drive the power stages reduces the efficiency of the switching power supply. The benefit of AutoPhase is that actively turning off some of the redundant power stages during light load conditions can increase the efficiency of the switching power supply.
However, in the prior art, according to the existing AutoPhase strategy, only one fixed power stage is turned on under a light load condition, and the rest power stages are in an idle state. When we focus on the working state of the load chip, the load chip commonly used as a multiphase power supply includes a CPU, an FPGA, and the like, and the power consumption of the load chip is usually only 20W to 60W in the idle state where the chip has no running pressure, and the corresponding load current is < 60A. The multiphase power supply may not be fully charged with all powerstages at this time. These load chips are not always in a high power consumption state, which results in that only one or two fixed power stages operate in a long time range under the existing Autophase strategy, which is obvious for the benefit of efficiency, but also has obvious disadvantages, because the existing strategy is only one or two fixed power stages operate, which results in that the two power stages which operate for a long time are more prone to failure. Therefore, how to ensure that each power stage in the multiple power supplies has a longer service life is an urgent problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a multi-item power supply control method, which can ensure that each power level in a multi-item power supply has a longer service life and enhance the reliability of the multi-item power supply; the invention also provides a multi-item power supply, each power level of the multi-item power supply has a longer service life, and the reliability of the multi-item power supply is enhanced.
In order to solve the above technical problems, the present invention provides a multi-item power control method, applied to a control stage, including:
acquiring load information of a plurality of power supplies;
determining load levels of the multiple power sources according to the load information;
determining a required number of power stages in the plurality of power sources based on the load level;
and randomly selecting the power levels to work according to the required quantity.
Optionally, the determining the required number of power levels in the multiple power supplies according to the load level includes:
determining all the numbers to be started currently required by the multiple power supplies according to the load grades;
the randomly selecting the power levels to work according to the required number comprises the following steps:
and randomly selecting a power level to be used from all power levels of the multiple power supplies according to the total number to be started to work.
Optionally, the determining the required number of power levels in the multiple power supplies according to the load level includes:
when the load level is increased, determining that the plurality of power supplies need to be added with a power level for working;
the randomly selecting the power levels to work according to the required number comprises the following steps:
and randomly selecting one power level from the power levels which are not operated in the plurality of power sources to operate.
Optionally, the determining the required number of power levels in the multiple power supplies according to the load level includes:
when the load level is reduced, determining that the plurality of power supplies need to be reduced by one power level for working;
the randomly selecting the power levels to work according to the required number comprises the following steps:
and randomly selecting one power level from the power levels which are operated in the plurality of power sources to stop operating.
Optionally, the load information includes output currents of the plurality of power supplies.
The invention also provides a multinomial power supply, which comprises a control stage and a plurality of power stages; the control stage is configured to:
acquiring load information of a plurality of power supplies;
determining load levels of the multiple power sources according to the load information;
determining a required number of power stages in the plurality of power sources based on the load level;
and randomly selecting the power levels to work according to the required quantity.
Optionally, the control stage is specifically configured to:
determining all the numbers to be started currently required by the multiple power supplies according to the load grades;
and randomly selecting a power level to be used from all power levels of the multiple power supplies according to the total number to be started to work.
Optionally, the control stage is specifically configured to:
when the load level is increased, determining that the plurality of power supplies need to be added with a power level for working;
and randomly selecting one power level from the power levels which are not operated in the plurality of power sources to operate.
Optionally, the control stage is specifically configured to:
when the load level is reduced, determining that the plurality of power supplies need to be reduced by one power level for working;
and randomly selecting one power level from the power levels which are operated in the plurality of power sources to stop operating.
Optionally, the load information includes output currents of the plurality of power supplies.
The invention provides a multi-power supply control method, which is applied to a control level and comprises the steps of obtaining load information of a plurality of power supplies; determining the load levels of a plurality of power supplies according to the load information; determining a required number of power stages in the plurality of power supplies according to the load level; and randomly selecting power levels according to the required number to work.
When the preset number of power levels are selected to work, the power levels are not selected according to a fixed sequence any more, but are selected randomly to work, so that the condition that the service life of one power level is reduced due to long-time work is avoided, each power level in a plurality of power supplies can be guaranteed to have a longer service life, and the reliability of the plurality of power supplies is enhanced.
The invention also provides a multi-item power supply which has the beneficial effects and is not repeated herein.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a flowchart of a method for controlling a plurality of power supplies according to an embodiment of the present invention;
FIG. 2 is a flow chart of a specific multi-stage power control method according to an embodiment of the present invention;
FIG. 3 is a flow chart of another exemplary method for controlling a plurality of power sources according to an embodiment of the present invention;
fig. 4 is a block diagram of a multi-phase power supply according to an embodiment of the present invention.
Detailed Description
The core of the invention is to provide a multi-item power supply control method. In the prior art, according to the existing AutoPhase strategy, only one fixed power stage is turned on under a light load condition, and the rest power stages are in an idle state. This results in only a fixed one or two power stages operating over a long time under the existing Autophase strategy, so that the two power stages operating for a long time are more prone to malfunction.
The multi-power supply control method provided by the invention is applied to a control level and comprises the steps of obtaining load information of a plurality of power supplies; determining the load levels of a plurality of power supplies according to the load information; determining a required number of power stages in the plurality of power supplies according to the load level; and randomly selecting power levels according to the required number to work.
When the preset number of power levels are selected to work, the power levels are not selected according to a fixed sequence any more, but are selected randomly to work, so that the condition that the service life of one power level is reduced due to long-time work is avoided, each power level in a plurality of power supplies can be guaranteed to have a longer service life, and the reliability of the plurality of power supplies is enhanced.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for controlling multiple power sources according to an embodiment of the present invention.
The multi-power supply control method provided by the embodiment of the invention is particularly applied to a control stage (Controller) in a multi-power supply, wherein the multi-power supply generally comprises a control stage and a plurality of power stages, and the control stage controls the output current of the power stages according to various signals and logic of internal program codes. The power stage can be understood in a simplified manner as a MOSFET, which assumes the role of the actual output power. The multiple power supply control method provided by the embodiment of the invention is particularly applied to the control level, and compared with the prior art, the multiple power supply control method is realized by modifying the internal program code of the control level.
Referring to fig. 1, in an embodiment of the present invention, a multi-phase power supply control method includes:
s101: load information of a plurality of power supplies is acquired.
The load information generally indicates information such as current or voltage that the multiple power supplies need to output, and in actual situations, the multiple power supplies need to output current of corresponding magnitude according to the load information. The specific content of the related load information may be set according to the actual situation, and is not limited specifically herein. Typically, the load information includes output currents of the plurality of power sources. Of course, the load information may also include other content, as the case may be.
In this step, the control stage in the multiple power supplies receives the load information and then controls the power stage according to the load information.
S102: and determining the load levels of the multiple power supplies according to the load information.
In this step, the control stage needs to determine the current load levels of the plurality of power supplies based on the load information. Typically, the load level corresponds to the number of power stages in the multiple power supplies. For example, if 5 power stages are provided in a multi-phase power supply, the multi-phase power supply outputs currents ranging from 0A to 100A. The plurality of power supplies typically have 5 load levels, wherein the first load level is 0A to 20A, the second load level is 20A to 40A, the third load level is 40A to 60A, the fourth load level is 60A to 80A, and the fifth load level is 80A to 100A. Of course, the specific setting of the load class needs to be set according to the actual situation by combining with the self structures of a plurality of power supplies, and is not limited specifically here. In this step, it is necessary to determine the load level thereof according to the load information acquired in S101, so as to determine the corresponding power level number thereof in the subsequent step.
S103: the required number of power stages in the multiple power supplies is determined according to the load level.
In this step, the number of power levels that the plurality of power sources need to call at the time of the current power supply, that is, the required number, needs to be determined according to the load level acquired in S102. For example, when the current load level is the first load level, only 1 power level is determined to be called; when the current load level is the fourth load level, 4 power levels are determined to be called, and the corresponding relationship between the required number and the load level in the step is pre-established, and can be set according to the actual situation, which is not specifically limited herein.
It should be noted that, before the step is executed, a determination procedure may be added to determine whether the load level obtained in S102 is changed, and the step is executed only after the load level is changed. Namely, the step can be specifically as follows: determining a required number of power stages in the plurality of power supplies based on the load class when the load class changes. Of course, the above determination process may not be provided here, and the determination process may be added in the execution process of the following S104, which is not specifically limited herein as the case may be.
S104: and randomly selecting power levels according to the required number to work.
In this step, the power levels are randomly selected to operate according to the required number determined in the above step S103, and the requirement of the above load information is met. The details of the random selection will be described in detail in the following embodiments of the invention, and will not be described herein. For the specific content of the control level controlling the selected power level to operate, reference may be made to the prior art, and no further description is provided herein.
It should be noted that, before the step is executed, a determination process may also be added, and the determination process may be completely consistent with the determination process in S103, or may be a determination of whether the required number generated in S103 is changed, and the step is executed only after the required number is changed. Namely, the step can be specifically as follows: and when the required quantity is changed, the power level is randomly selected according to the required quantity to work. Of course, the determination process in this step and the determination process in S103 are usually one to be selected, and certainly, two determinations may be performed to avoid the occurrence of the erroneous determination. The specific content thereof may be set according to the actual situation, and is not limited specifically herein.
The embodiment of the invention provides a multi-power supply control method, which is applied to a control level and comprises the steps of obtaining load information of a plurality of power supplies; determining the load levels of a plurality of power supplies according to the load information; determining a required number of power stages in the plurality of power supplies according to the load level; and randomly selecting power levels according to the required number to work.
When the preset number of power levels are selected to work, the power levels are not selected according to a fixed sequence any more, but are selected randomly to work, so that the condition that the service life of one power level is reduced due to long-time work is avoided, each power level in a plurality of power supplies can be guaranteed to have a longer service life, and the reliability of the plurality of power supplies is enhanced.
The details of the multiple power control methods provided by the present invention will be described in detail in the following embodiments of the invention.
Referring to fig. 2, fig. 2 is a flowchart illustrating a specific method for controlling multiple power sources according to an embodiment of the present invention.
Referring to fig. 2, in an embodiment of the present invention, a multi-phase power supply control method includes:
and S201, acquiring load information of a plurality of power supplies.
S202: and determining the load levels of the multiple power supplies according to the load information.
S201 to S202 are substantially the same as S101 to S102 in the above embodiment of the invention, and for details, reference is made to the above embodiment of the invention, which is not repeated herein.
S203: and determining the total number to be started currently required by the multiple power supplies according to the load grades.
In this step, the number of power levels that are required to be turned on in common by the multiple power sources under the load level, that is, the total number to be turned on that is currently required, is determined according to the load level.
S204: and randomly selecting the power level to be used from all power levels of the multiple power supplies according to the total number to be started to work.
In this step, the power stage to be used is randomly selected from all the power stages of the multiple power supplies, no matter the power stage currently operated or the idle power stage, to be operated according to the total number to be turned on. That is, in this step, no matter the power level is increased or decreased, the number of all the to-be-turned-on terminals is increased or decreased, the power level is randomly selected from all the power levels to operate. It should be noted that, in this step, when the power level is increased, the power level may be changed from the on state to the off state; and the power level is lowered, and the power level is changed from the off state to the on state. Although the number of times of switching the power stages is increased, the working time of each power stage can be effectively balanced, and the reliability of multiple power supplies is increased.
Specifically, in the embodiments of the present invention and the embodiments of the present invention described below, the process of random selection is generally implemented based on Verilog programs, which generally refer to Verilog HDL. The Verilog HDL is a hardware description language, which describes the structure and behavior of digital system hardware in text form, and can be used to represent logic circuit diagrams, logic expressions, and logic functions performed by digital logic systems. Of course, in the embodiment of the present invention, other manners may also be selected to realize the selection of the random number, which is not specifically limited herein.
According to the multi-power-supply control method provided by the embodiment of the invention, when the preset number of power levels are selected to work, the power levels are not selected according to a fixed sequence any more, but are selected randomly to work, so that the condition that the service life of one power level is reduced due to long-time work is avoided, each power level in a plurality of power supplies can be ensured to have a longer service life, and the reliability of the plurality of power supplies is enhanced.
The details of the multiple power control methods provided by the present invention will be described in detail in the following embodiments of the invention.
Referring to fig. 3, fig. 3 is a flowchart of another specific multi-power control method according to an embodiment of the present invention.
Referring to fig. 3, in an embodiment of the present invention, a multi-phase power supply control method includes:
and S301, acquiring load information of a plurality of power supplies.
S302: and determining the load levels of the multiple power supplies according to the load information.
S301 to S302 are substantially the same as S101 to S102 in the above embodiment of the invention, and for details, reference is made to the above embodiment of the invention, which is not repeated herein.
S303: when the load level is increased, the power levels of the multiple power supplies are determined to be increased for operation.
The power of the multiple power supplies is continuously increased or decreased step by step, so that the situation that the load grade is suddenly increased by two or more stages or suddenly decreased by two or more stages is avoided. Therefore, in this step, when the load level increases, it is determined that a power level needs to be increased to operate based on the number of the original power levels.
S304: randomly selecting one power level from the power levels which are not operated in the plurality of power sources to operate.
Since it is determined in S303 that a power stage needs to be added for operation, in this step, a power stage is randomly selected from among the power stages that are not operated in the multiple power supplies for operation, so as to meet the requirement of the load information. The specific random process has been described in detail in the above embodiments of the invention, and will not be described herein again.
S305: when the load level is reduced, it is determined that the plurality of power sources need to be reduced by one power level for operation.
In this step, when the load level is decreased, it is determined that a power level needs to be decreased to operate based on the number of the original power levels.
S306: randomly selecting one power level from the power levels which are already operated in the multiple power supplies to stop operating.
Since it is determined in S305 that a power level needs to be decreased for operation, in this step, a power level is randomly selected from the already-operated power levels in the multiple power supplies to be turned off so as to meet the requirement of the load information. Obviously, the embodiment of the invention effectively reduces the switching times of the power levels and increases the reliability of a plurality of power supplies on the premise of basically meeting the requirements of randomly selecting the power levels to work and effectively balancing the working time of each power level. It should be noted that S303 to S304 and S305 to S306 are usually executed in parallel, and different operations are executed according to different trigger conditions.
According to the multi-power-supply control method provided by the embodiment of the invention, when the preset number of power levels are selected to work, the power levels are not selected according to a fixed sequence any more, but are selected randomly to work, so that the condition that the service life of one power level is reduced due to long-time work is avoided, each power level in a plurality of power supplies can be ensured to have a longer service life, and the reliability of the plurality of power supplies is enhanced.
In the following, a plurality of power supplies provided by embodiments of the present invention are introduced, and a plurality of power supplies described below and a plurality of power supply control methods described above may be referred to correspondingly.
Referring to fig. 4, fig. 4 is a block diagram of a multi-phase power supply according to an embodiment of the present invention. Referring to fig. 4, the multiple power supply may include a control stage 11 and a plurality of power stages 12; the control stage 11 is configured to:
load information of a plurality of power supplies is acquired.
And determining the load levels of the multiple power supplies according to the load information.
The required number of power stages 12 in the multiple power supplies is determined according to the load class.
And randomly selecting the power stages 12 to work according to the required number.
Preferably, in the embodiment of the present invention, the control stage 11 is specifically configured to:
and determining the total number to be started currently required by the multiple power supplies according to the load grades.
And randomly selecting the power levels 12 to be used from all the power levels 12 of the multiple power supplies according to the total number to be started to work.
Preferably, in the embodiment of the present invention, the control stage 11 is specifically configured to:
when the load level increases, it is determined that the plurality of power sources need to be increased by a power stage 12 for operation.
Randomly selecting one power stage 12 from the power stages 12 which are not operated in the plurality of power supplies to operate.
Preferably, in the embodiment of the present invention, the control stage 11 is specifically configured to:
when the load level decreases, it is determined that the plurality of power sources need to be operated with a reduced power level 12.
Randomly selecting one power stage 12 from the power stages 12 which are already operated in the plurality of power supplies to stop operating.
Preferably, in the embodiment of the present invention, the load information includes output currents of the plurality of power supplies.
The multiple power supplies of this embodiment are used to implement the multiple power supply control methods, and therefore specific implementations of the multiple power supplies can be found in the embodiments of the multiple power supply control methods in the foregoing, and therefore, the specific implementations thereof may refer to descriptions of corresponding embodiments of the respective portions and are not described herein again.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The power supply control methods and power supplies provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A multi-item power supply control method is applied to a control stage and comprises the following steps:
acquiring load information of a plurality of power supplies;
determining load levels of the multiple power sources according to the load information;
determining a required number of power stages in the plurality of power sources based on the load level;
and randomly selecting the power levels to work according to the required quantity.
2. The method of claim 1, wherein determining the required number of power stages in the plurality of power sources based on the load class comprises:
determining all the numbers to be started currently required by the multiple power supplies according to the load grades;
the randomly selecting the power levels to work according to the required number comprises the following steps:
and randomly selecting a power level to be used from all power levels of the multiple power supplies according to the total number to be started to work.
3. The method of claim 1, wherein determining the required number of power stages in the plurality of power sources based on the load class comprises:
when the load level is increased, determining that the plurality of power supplies need to be added with a power level for working;
the randomly selecting the power levels to work according to the required number comprises the following steps:
and randomly selecting one power level from the power levels which are not operated in the plurality of power sources to operate.
4. The method of claim 3, wherein determining the required number of power stages in the plurality of power sources based on the load class comprises:
when the load level is reduced, determining that the plurality of power supplies need to be reduced by one power level for working;
the randomly selecting the power levels to work according to the required number comprises the following steps:
and randomly selecting one power level from the power levels which are operated in the plurality of power sources to stop operating.
5. The method of claim 1, wherein the load information comprises output currents of the plurality of power sources.
6. A multi-phase power supply comprising a control stage and a plurality of power stages; the control stage is configured to:
acquiring load information of a plurality of power supplies;
determining load levels of the multiple power sources according to the load information;
determining a required number of power stages in the plurality of power sources based on the load level;
and randomly selecting the power levels to work according to the required quantity.
7. Multiple power supply according to claim 6, characterized in that the control stage is specifically configured to:
determining all the numbers to be started currently required by the multiple power supplies according to the load grades;
and randomly selecting a power level to be used from all power levels of the multiple power supplies according to the total number to be started to work.
8. Multiple power supply according to claim 6, characterized in that the control stage is specifically configured to:
when the load level is increased, determining that the plurality of power supplies need to be added with a power level for working;
and randomly selecting one power level from the power levels which are not operated in the plurality of power sources to operate.
9. Multiple power supply according to claim 8, characterized in that the control stage is specifically configured to:
when the load level is reduced, determining that the plurality of power supplies need to be reduced by one power level for working;
and randomly selecting one power level from the power levels which are operated in the plurality of power sources to stop operating.
10. The multiple power supplies of claim 6 wherein the load information comprises output currents of the multiple power supplies.
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| CN202110829911.5A CN113691102A (en) | 2021-07-22 | 2021-07-22 | Multi-power supply control method and multi-power supply |
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| CN202110829911.5A Pending CN113691102A (en) | 2021-07-22 | 2021-07-22 | Multi-power supply control method and multi-power supply |
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| CN (1) | CN113691102A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008029113A1 (en) * | 2008-06-19 | 2009-12-24 | Enermax Technology Corp. | Power sequence control circuit for use in LCD device, has current limit switching unit conducting to transmit input positive voltage as output positive voltage when control voltage is lower than enabling threshold |
| CN105553072A (en) * | 2015-12-21 | 2016-05-04 | 北京空间飞行器总体设计部 | Multiphase digital discharge adjustment method suitable for spacecraft power supply system |
| CN105576957A (en) * | 2014-10-29 | 2016-05-11 | 英飞凌科技奥地利有限公司 | Intermediate voltage bus converter with power saving modes |
-
2021
- 2021-07-22 CN CN202110829911.5A patent/CN113691102A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008029113A1 (en) * | 2008-06-19 | 2009-12-24 | Enermax Technology Corp. | Power sequence control circuit for use in LCD device, has current limit switching unit conducting to transmit input positive voltage as output positive voltage when control voltage is lower than enabling threshold |
| CN105576957A (en) * | 2014-10-29 | 2016-05-11 | 英飞凌科技奥地利有限公司 | Intermediate voltage bus converter with power saving modes |
| CN105553072A (en) * | 2015-12-21 | 2016-05-04 | 北京空间飞行器总体设计部 | Multiphase digital discharge adjustment method suitable for spacecraft power supply system |
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