CN111736682B - Power supply framework and method for whole cabinet - Google Patents
Power supply framework and method for whole cabinet Download PDFInfo
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- CN111736682B CN111736682B CN202010567642.5A CN202010567642A CN111736682B CN 111736682 B CN111736682 B CN 111736682B CN 202010567642 A CN202010567642 A CN 202010567642A CN 111736682 B CN111736682 B CN 111736682B
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- 238000001514 detection method Methods 0.000 claims abstract description 69
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The application discloses a whole cabinet power supply framework and a method, which comprises the following steps: the input ends of the first current-sharing detection circuit and the second current-sharing detection circuit are respectively connected with the first power supply frame and the second power supply frame; the output ends of the first current-sharing detection circuit and the second current-sharing detection circuit are mutually connected; the first current-sharing detection circuit comprises a first multistage voltage division circuit and a first comparison circuit; the second current-sharing detection circuit comprises a second multistage voltage division circuit and a second comparison circuit; this application is through connecting the detection circuitry that flow equalizes at the output of two power racks, utilize comparison circuit control multistage hierarchical circuit to open and be closed, utilize multistage hierarchical circuit geometric proportion to reduce the output current of power rack, so that power control system can directly detect out corresponding power rack output according to multistage bleeder circuit's output current and whether not enough, so that carry out subsequent output adjustment, avoided the power rack because not flow equalize, produce the condition of overcurrent protection, improved the stability of complete machine cabinet.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a whole cabinet power supply framework and a method.
Background
The power supply solution of the whole cabinet is an efficient application mode, the power supply frame is used for concentrating the power supply, the energy utilization rate is improved, the application of the power supply of the whole cabinet is adjusted, the power supply of the whole cabinet can be operated at a better working efficiency point, and the power supply of the server of the whole cabinet is completed by fewer power supplies.
However, in the prior art, different power supply racks in the whole cabinet cannot be dynamically balanced with each other, and the situation of unbalanced power supply occurs. In order to avoid the situation that the current sharing control of the whole cabinet is better achieved, the patent provides a new current sharing mode of the power supply rack, and the current sharing mode is used for solving the problem that the power supply of different power supply racks in the whole cabinet is unbalanced.
Therefore, a more energy-saving and more efficient whole cabinet power supply architecture is needed.
Disclosure of Invention
In view of the above, the present invention provides a power supply structure, a system, a device and a computer readable storage medium for a complete cabinet, which are more energy-saving and more efficient. The specific scheme is as follows:
a whole cabinet power supply framework comprises: the first current-sharing detection circuit is connected with the output end of the first power supply frame, and the second current-sharing detection circuit is connected with the output end of the second power supply frame; the output ends of the first current-sharing detection circuit and the second current-sharing detection circuit are mutually connected;
the first current-sharing detection circuit comprises a first multistage voltage division circuit and a first comparison circuit;
the second current-sharing detection circuit comprises a second multistage voltage division circuit and a second comparison circuit;
the output ends of the first multistage voltage division circuit and the second multistage voltage division circuit are connected with each other, the input ends of the first multistage voltage division circuit and the second multistage voltage division circuit are respectively connected with the output end of the first power supply frame and the output end of the second power supply frame, the first-stage control ends of the first multistage voltage division circuit and the second multistage voltage division circuit are respectively connected with the output end of the first comparison circuit and the output end of the second comparison circuit, and the second-stage control ends of the first multistage voltage division circuit and the second multistage voltage division circuit are connected with each other;
the negative input end of the first comparison circuit is connected with the output end of the first multistage voltage division circuit and the output end of the first current-sharing detection circuit through a voltage division resistor, and the reference end of the first comparison circuit is connected with the output end of the first current-sharing detection circuit;
the negative input end of the second comparison circuit is connected with the output ends of the second multistage voltage division circuit and the second current-sharing detection circuit through voltage division resistors, and the reference end of the second comparison circuit is connected with the output end of the second current-sharing detection circuit;
and the power supply control systems of the first power supply frame and the second power supply frame are respectively connected with the output ends of the first multistage voltage division circuit and the second multistage voltage division circuit.
Optionally, the output ends of the first and second current-sharing detection circuits are connected to each other through a current-sharing bus bar.
Optionally, the output ends of the first multistage voltage division circuit and the second multistage voltage division circuit are connected with each other through a current equalizing bus bar.
Optionally, the first multi-stage voltage division circuit includes: the circuit comprises a first switching tube, a second switching tube, a third switching tube, a first resistor and a second resistor;
the first switch tube, the second switch tube with the input interconnect of third switch tube all regards as first multistage bleeder circuit's input, the output of first switch tube with the first end of first resistance is connected, the control end of first switch tube with the output of second switch tube with the one end of second resistance is connected, first resistance with the other end interconnect of second resistance all regards as first multistage bleeder circuit's output, the control end of second switch tube with the output of third switch tube is connected, the output of third switch tube is regarded as first multistage bleeder circuit second level control end, the control end of third switch tube is regarded as first multistage bleeder circuit's first level control end.
Optionally, the second multi-stage voltage dividing circuit includes: the fourth switching tube, the fifth switching tube, the sixth switching tube, the third resistor and the fourth resistor;
the fourth switch tube the fifth switch tube with the input interconnect of sixth switch tube all regards as the multistage bleeder circuit of second's input, the fourth switch tube the output with the first end of third resistance is connected, the fourth switch tube the control end with the output of fifth switch tube with the one end of fourth resistance is connected, the third resistance with the other end interconnect of fourth resistance all regards as the multistage bleeder circuit's of second output, the control end of fifth switch tube with the output of sixth switch tube is connected, the output of sixth switch tube is regarded as multistage bleeder circuit second level control end of second, the control end of sixth switch tube is regarded as the multistage bleeder circuit's of second first level control end.
Optionally, the first comparison circuit includes: a first comparator and a first diode;
the cathode of the first diode is used as the output end of the first comparator, the anode of the first diode is connected with the output end of the first comparator, the negative input end of the first comparator is used as the negative input end of the first comparator, and the positive input end of the first comparator is used as the reference end of the first comparator.
Optionally, the second comparing circuit includes: a second comparator and a second diode;
the cathode of the second diode is used as the output end of the second comparator, the anode of the second diode is connected with the output end of the second comparator, the negative input end of the second comparator is used as the negative input end of the second comparator, and the positive input end of the second comparator is used as the reference end of the second comparator.
Optionally, a negative input end of the first comparison circuit is connected to a tap end of a first sliding filament voltage-dividing resistor, a first end of the first sliding filament voltage-dividing resistor is connected to one end of a first voltage-dividing resistor, the other end of the first voltage-dividing resistor is connected to an output end of the first multi-stage voltage-dividing circuit, a second end of the first sliding filament voltage-dividing resistor is connected to one end of a second voltage-dividing resistor, and the other end of the second voltage-dividing resistor is connected to an output end of the first current-sharing detection circuit.
Optionally, the negative input end of the second comparison circuit is connected with the tap end of the second sliding wire voltage-dividing resistor, the first end of the second sliding wire voltage-dividing resistor is connected with one end of the third voltage-dividing resistor, the other end of the third voltage-dividing resistor is connected with the output end of the second multi-stage voltage-dividing circuit, the second end of the second sliding wire voltage-dividing resistor is connected with one end of the fourth voltage-dividing resistor, and the other end of the fourth voltage-dividing resistor is connected with the output end of the second current-sharing detection circuit.
The invention also discloses a whole cabinet power supply method, which is applied to the whole cabinet power supply framework and comprises the following steps:
respectively acquiring a first current signal and a second current signal at the output ends of a first current-sharing detection circuit and a second current-sharing detection circuit;
comparing the first current signal with the second current signal to obtain a low current signal with a smaller current;
and analyzing the difference value of the first current signal and the second current signal by using an adaptive linear filter, and adjusting the power supply output power in the power supply rack corresponding to the low current signal so as to enable the difference value of the first current signal and the second current signal to meet a preset condition.
In the invention, the whole cabinet power supply framework comprises: the first current-sharing detection circuit is connected with the output end of the first power supply frame, and the second current-sharing detection circuit is connected with the output end of the second power supply frame; the output ends of the first current-sharing detection circuit and the second current-sharing detection circuit are mutually connected; the first current-sharing detection circuit comprises a first multistage voltage division circuit and a first comparison circuit; the second current-sharing detection circuit comprises a second multistage voltage division circuit and a second comparison circuit; the output ends of the first multistage voltage division circuit and the second multistage voltage division circuit are connected with each other, the input ends of the first multistage voltage division circuit and the second multistage voltage division circuit are respectively connected with the output end of the first power supply frame and the output end of the second power supply frame, the first-stage control ends of the first multistage voltage division circuit and the second multistage voltage division circuit are respectively connected with the output end of the first comparison circuit and the output end of the second comparison circuit, and the second-stage control ends of the first multistage voltage division circuit and the second multistage voltage division circuit are connected with each other; the negative input end of the first comparison circuit is connected with the output end of the first multistage voltage division circuit and the output end of the first current-sharing detection circuit through voltage division resistors, and the reference end of the first comparison circuit is connected with the output end of the first current-sharing detection circuit; the negative input end of the second comparison circuit is connected with the output end of the second multistage voltage division circuit and the output end of the second current-sharing detection circuit through voltage division resistors, and the reference end of the second comparison circuit is connected with the output end of the second current-sharing detection circuit; and the power supply control systems of the first power supply frame and the second power supply frame are respectively connected with the output ends of the first multistage voltage division circuit and the second multistage voltage division circuit.
According to the invention, the output ends of the two power supply racks are connected with the current-sharing detection circuit, the multi-stage grading circuit is controlled to be opened and closed by using the comparison circuit, and the output current of the power supply racks is reduced in an equal ratio by using the multi-stage grading circuit, so that a power supply control system can directly detect whether the output power of the corresponding power supply rack is insufficient according to the output current of the multi-stage voltage division circuit, so that the subsequent output power adjustment is carried out, the current-sharing control among the power supply racks is realized, the situation that the power supply racks generate overcurrent protection due to non-current sharing is avoided, and the stability of the whole cabinet is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a power supply architecture of a complete cabinet according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a power supply method for a complete cabinet according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The embodiment of the invention discloses a power supply framework of a whole cabinet, and as shown in figure 1, the framework comprises: the power supply comprises a first current-sharing detection circuit 1 connected with the output end of a first power supply frame and a second current-sharing detection circuit 2 connected with the output end of a second power supply frame; the output ends of the first current-sharing detection circuit 1 and the second current-sharing detection circuit 2 are connected with each other;
the first current-sharing detection circuit 1 comprises a first multi-stage voltage division circuit 11 and a first comparison circuit 12;
the second current sharing detection circuit 2 comprises a second multistage voltage division circuit 21 and a second comparison circuit 22;
the output ends of the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 are connected with each other, the input ends of the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 are respectively connected with the output end of the first power supply frame and the output end of the second power supply frame, the first-stage control ends of the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 are respectively connected with the output end of the first comparison circuit 12 and the output end of the second comparison circuit 22, and the second-stage control ends of the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 are connected with each other;
the negative input end of the first comparison circuit 12 is connected with the output end of the first multistage voltage division circuit 11 and the output end of the first current-sharing detection circuit 1 through a voltage division resistor, and the reference end of the first comparison circuit 12 is connected with the output end of the first current-sharing detection circuit 1;
the negative input end of the second comparison circuit 22 is connected with the output end of the second multistage voltage division circuit 21 and the output end of the second current-sharing detection circuit 2 through voltage division resistors, and the reference end of the second comparison circuit 22 is connected with the output end of the second current-sharing detection circuit 2;
the power supply control systems of the first power supply frame and the second power supply frame are respectively connected with the output ends of the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21.
Specifically, a Power Supply (PSU) is arranged in the power supply frame, the output end of the power supply frame is the output end of the power supply, the first current-sharing detection circuit 1 and the second current-sharing detection circuit 2 are respectively connected with the output ends of the first power supply frame and the second power supply frame by using the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21, and respectively use the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 to step down the voltage output by the output end of the power supply frame, so that the output ends of the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 can respectively output equal-ratio current signals capable of reflecting the output voltage of the first power supply frame and the second power supply frame.
Specifically, the first comparison circuit 12 and the second comparison circuit 22 can control the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 to be turned on and turned off, the first comparison circuit 12 and the second comparison circuit 22 can control the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 to be turned on according to the reference voltage, the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 can continue to work according to the voltage of the output ends of the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 after being turned on, the voltage of the negative input end can be adjusted according to respective voltage division resistors, and the appropriate working state can be guaranteed.
Specifically, the power control system in the power supply rack is connected with the output ends of the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21, so that the power control system in the power supply rack can detect current signals output by the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21, and because the power output voltages in the power supply racks are basically consistent, the difference value of the output powers of the first power supply rack and the second power supply rack can be known by comparing the current signals output by the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21.
Specifically, in order to realize current sharing, the power control system in the power supply rack may adjust the output power of the power supply rack with a low current signal according to the difference between the current signals output by the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21, so that the current signals output by the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 are continuously close to be consistent, the difference between the output powers of the first power supply rack and the second power supply rack is reduced, and current sharing is realized.
For example, if the current signal at the output end of the first multi-stage voltage division circuit 11 of the first power rack is 3A, and the current signal at the output end of the second multi-stage voltage division circuit 21 of the second power rack is 2A, the power control system in the second power rack can determine that the output power of the second power rack is insufficient, and can correspondingly adjust the output power of the second power rack, so that the current signal at the output end of the second multi-stage voltage division circuit 21 is continuously close to the current signal at the output end of the first multi-stage voltage division circuit 11 until a certain range, for example, ± 0.2A, is satisfied, and if the current signal at the output end of the second multi-stage voltage division circuit 21 is 2.8A, it can be considered that the current of the first power rack and the current of the second power rack are equalized, and the adjustment is finished.
It can be understood that the embodiment of the invention can be applied to the power supply rack of the whole cabinet server.
Therefore, the embodiment of the invention connects the current-sharing detection circuits at the output ends of the two power racks, controls the opening and closing of the multi-stage grading circuit by using the comparison circuit, and reduces the output current of the power racks by using the multi-stage grading circuit in an equal ratio manner, so that the power control system can directly detect whether the output power of the corresponding power rack is insufficient according to the output current of the multi-stage voltage division circuit, thereby facilitating the subsequent output power adjustment, realizing the current-sharing control among the power racks, avoiding the situation that the power racks generate overcurrent protection due to non-current sharing, and improving the stability of the whole cabinet.
The embodiment of the invention discloses a specific power supply framework of a whole cabinet, which is applied to a main PSU (power supply unit). Specifically, the method comprises the following steps:
specifically, the output ends of the first current-sharing detection circuit 1 and the second current-sharing detection circuit 2 may be connected to each other through a current-sharing bus bar; the output ends of the first multistage voltage division circuit 11 and the second multistage voltage division circuit 21 can be connected with each other through a current equalizing bus bar.
Specifically, the first multistage voltage division circuit 11 may include: the circuit comprises a first switching tube Q1, a second switching tube Q2, a third switching tube Q3, a first resistor RS and a second resistor RS 1;
the input ends of the first switch tube Q1, the second switch tube Q2 and the third switch tube Q3 are all connected to each other to serve as the input end of the first multi-stage voltage division circuit 11, the output end of the first switch tube Q1 is connected with the first end of the first resistor RS, the control end of the first switch tube Q1 is connected with the output end of the second switch tube Q2 and one end of the second resistor RS1, the other ends of the first resistor RS and the second resistor RS1 are connected to each other to serve as the output end of the first multi-stage voltage division circuit 11, the control end of the second switch tube Q2 is connected with the output end of the third switch tube Q3, the output end of the third switch tube Q3 serves as the second-stage control end of the first multi-stage voltage division circuit 11, and the control end of the third switch tube Q3 serves as the first-stage control end of the first multi-stage voltage division circuit 11.
Specifically, the second multistage voltage division circuit 21 may include: a fourth switching tube Q1 ', a fifth switching tube Q2 ', a sixth switching tube Q3 ', a third resistor RS ' and a fourth resistor RS1 ';
the input ends of a fourth switching tube Q1 ', a fifth switching tube Q2 ' and a sixth switching tube Q3 ' are all connected with each other to serve as the input end of the second multistage voltage dividing circuit 21, the output end of the fourth switching tube Q1 ' is connected with the first end of a third resistor RS ', the control end of the fourth switching tube Q1 ' is connected with the output end of the fifth switching tube Q2 ' and one end of a fourth resistor RS1 ', the other ends of the third resistor RS1 ' are connected with each other to serve as the output end of the second multistage voltage dividing circuit 21, the control end of the fifth switching tube Q2 ' is connected with the output end of the sixth switching tube Q3 ', the output end of the sixth switching tube Q3 ' serves as the second control end of the second multistage voltage dividing circuit 21, and the control end of the sixth switching tube Q3 ' serves as the first control end of the second multistage voltage dividing circuit 21.
Specifically, the first comparison circuit 12 may include: a first comparator a1 and a first diode D1;
the cathode of the first diode D1 is used as the output terminal of the first comparator circuit 12, the anode of the first diode D1 is connected to the output terminal of the first comparator a1, the negative input terminal of the first comparator a1 is used as the negative input terminal of the first comparator circuit 12, and the positive input terminal of the first comparator a1 is used as the reference terminal of the first comparator a 1.
Specifically, the second comparator circuit 22 may include: a second comparator a1 'and a second diode D1';
the cathode of the second diode D1 'is used as the output terminal of the second comparator circuit 22, the anode of the second diode D1' is connected to the output terminal of the second comparator a1 ', the negative input terminal of the second comparator a 1' is used as the negative input terminal of the second comparator circuit 22, and the positive input terminal of the second comparator a1 'is used as the reference terminal of the second comparator a 1'.
Specifically, the voltage dividing resistors of the first current sharing detection circuit 1 may include a first sliding wire voltage dividing resistor RV2, a first voltage dividing resistor R1, and a second voltage dividing resistor R3; the negative input end of the first comparison circuit 12 is connected with the tap end of the first slide wire voltage-dividing resistor RV2, the first end of the first slide wire voltage-dividing resistor RV2 is connected with one end of the first voltage-dividing resistor R1, the other end of the first voltage-dividing resistor R1 is connected with the output end of the first multistage voltage-dividing circuit 11, the second end of the first slide wire voltage-dividing resistor RV2 is connected with one end of the second voltage-dividing resistor R3, and the other end of the second voltage-dividing resistor R3 is connected with the output end of the first current-sharing detection circuit 1.
Specifically, the voltage dividing resistors of the second current sharing detection circuit 2 may include a second sliding wire voltage dividing resistor RV2 ', a third voltage dividing resistor R1 ', and a fourth voltage dividing resistor R3 '; the negative input end of the second comparison circuit 22 is connected to the tap end of the second slide wire voltage-dividing resistor RV2 ', the first end of the second slide wire voltage-dividing resistor RV2 ' is connected to one end of the third voltage-dividing resistor R1 ', the other end of the third voltage-dividing resistor R1 ' is connected to the output end of the second multistage voltage-dividing circuit 21, the second end of the second slide wire voltage-dividing resistor RV2 ' is connected to one end of the fourth voltage-dividing resistor R3 ', and the other end of the fourth voltage-dividing resistor R3 ' is connected to the output end of the second current-sharing detection circuit 2.
Correspondingly, the embodiment of the present invention further discloses a power supply method for a complete cabinet, as shown in fig. 2, the method is applied to the complete cabinet power supply architecture, and includes:
s11: respectively acquiring a first current signal and a second current signal at the output ends of a first current-sharing detection circuit 1 and a second current-sharing detection circuit 2;
s12: comparing the first current signal with the second current signal to obtain a low current signal with a smaller current;
s13: and analyzing the difference value of the first current signal and the second current signal by using an adaptive linear filter, and adjusting the power output power of the power supply in the power supply rack corresponding to the low current signal so as to enable the difference value of the first current signal and the second current signal to meet a preset condition.
Specifically, the parameters of various adjustable devices used for controlling the output power in the power supply are preset in the adaptive linear filter, and then the difference value between the first current signal and the second current signal is input into the adaptive linear filter, so that the parameters of various devices in the power supply can be adjusted by the adaptive filter, the difference value between the first current signal and the second current signal tends to be 0 continuously, and when the difference value between the first current signal and the second current signal approaches to be 0, the parameters of various devices in the power supply corresponding to the adaptive filter are the parameters after the current equalization of the power supply, so that the current equalization is realized.
Therefore, the embodiment of the invention can directly detect whether the output power of the corresponding power supply frame is insufficient according to the output current of the multi-stage voltage division circuit, and utilizes the adaptive filter to perform subsequent output power adjustment, thereby improving the control accuracy and convergence rate, realizing the current sharing control among the power supply frames, avoiding the over-current protection caused by non-current sharing of the power supply frames, and improving the stability of the whole cabinet.
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.
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 technical content provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific examples, and the above description of the examples is only used to help understanding the method of the present invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. A complete machine cabinet power supply framework is characterized by comprising: the first current-sharing detection circuit is connected with the output end of the first power supply frame, and the second current-sharing detection circuit is connected with the output end of the second power supply frame; the output ends of the first current-sharing detection circuit and the second current-sharing detection circuit are mutually connected;
the first current-sharing detection circuit comprises a first multistage voltage division circuit and a first comparison circuit;
the second current-sharing detection circuit comprises a second multistage voltage division circuit and a second comparison circuit;
the output ends of the first multistage voltage division circuit and the second multistage voltage division circuit are connected with each other, the input ends of the first multistage voltage division circuit and the second multistage voltage division circuit are respectively connected with the output end of the first power supply frame and the output end of the second power supply frame, the first-stage control ends of the first multistage voltage division circuit and the second multistage voltage division circuit are respectively connected with the output end of the first comparison circuit and the output end of the second comparison circuit, and the second-stage control ends of the first multistage voltage division circuit and the second multistage voltage division circuit are connected with each other;
the negative input end of the first comparison circuit is connected with the output end of the first multistage voltage division circuit and the output end of the first current-sharing detection circuit through a voltage division resistor, and the reference end of the first comparison circuit is connected with the output end of the first current-sharing detection circuit;
the negative input end of the second comparison circuit is connected with the output ends of the second multistage voltage division circuit and the second current-sharing detection circuit through voltage division resistors, and the reference end of the second comparison circuit is connected with the output end of the second current-sharing detection circuit;
the power supply control systems of the first power supply frame and the second power supply frame are respectively connected with the output ends of the first multistage voltage division circuit and the second multistage voltage division circuit;
the output ends of the first multistage voltage division circuit and the second multistage voltage division circuit are connected with each other through a current equalizing bus bar;
wherein the first multi-stage voltage division circuit includes: the circuit comprises a first switching tube, a second switching tube, a third switching tube, a first resistor and a second resistor;
the input ends of the first switch tube, the second switch tube and the third switch tube are connected with each other and are all used as the input end of the first multi-stage voltage division circuit, the output end of the first switch tube is connected with the first end of the first resistor, the control end of the first switch tube is connected with the output end of the second switch tube and one end of the second resistor, the other ends of the first resistor and the second resistor are connected with each other and are all used as the output end of the first multi-stage voltage division circuit, the control end of the second switch tube is connected with the output end of the third switch tube, the output end of the third switch tube is used as the second control end of the first multi-stage voltage division circuit, and the control end of the third switch tube is used as the first control end of the first multi-stage voltage division circuit;
wherein the second multi-stage voltage dividing circuit includes: the fourth switching tube, the fifth switching tube, the sixth switching tube, the third resistor and the fourth resistor;
the fourth switch tube the fifth switch tube with the input interconnect of sixth switch tube all regards as the multistage bleeder circuit of second's input, the fourth switch tube the output with the first end of third resistance is connected, the fourth switch tube the control end with the output of fifth switch tube with the one end of fourth resistance is connected, the third resistance with the other end interconnect of fourth resistance all regards as the multistage bleeder circuit's of second output, the control end of fifth switch tube with the output of sixth switch tube is connected, the output of sixth switch tube is regarded as multistage bleeder circuit second level control end of second, the control end of sixth switch tube is regarded as the multistage bleeder circuit's of second first level control end.
2. The complete machine cabinet power supply architecture according to claim 1, wherein the output ends of the first and second current sharing detection circuits are connected with each other through a current sharing bus bar.
3. The complete machine cabinet power supply architecture according to claim 1, wherein the first comparison circuit comprises: a first comparator and a first diode;
the cathode of the first diode is used as the output end of the first comparator, the anode of the first diode is connected with the output end of the first comparator, the negative input end of the first comparator is used as the negative input end of the first comparator, and the positive input end of the first comparator is used as the reference end of the first comparator.
4. The complete cabinet power supply architecture according to claim 3, wherein the second comparison circuit comprises: a second comparator and a second diode;
the cathode of the second diode is used as the output end of the second comparator, the anode of the second diode is connected with the output end of the second comparator, the negative input end of the second comparator is used as the negative input end of the second comparator, and the positive input end of the second comparator is used as the reference end of the second comparator.
5. The power supply architecture of the whole cabinet according to claim 4, wherein a negative input end of the first comparison circuit is connected to a tap end of a first slide wire voltage-dividing resistor, a first end of the first slide wire voltage-dividing resistor is connected to one end of a first voltage-dividing resistor, the other end of the first voltage-dividing resistor is connected to an output end of the first multi-stage voltage-dividing circuit, a second end of the first slide wire voltage-dividing resistor is connected to one end of a second voltage-dividing resistor, and the other end of the second voltage-dividing resistor is connected to an output end of the first current-sharing detection circuit.
6. The power supply architecture of the whole cabinet according to claim 5, wherein a negative input end of the second comparison circuit is connected to a tap end of a second sliding wire voltage-dividing resistor, a first end of the second sliding wire voltage-dividing resistor is connected to one end of a third voltage-dividing resistor, the other end of the third voltage-dividing resistor is connected to an output end of the second multi-stage voltage-dividing circuit, a second end of the second sliding wire voltage-dividing resistor is connected to one end of a fourth voltage-dividing resistor, and the other end of the fourth voltage-dividing resistor is connected to an output end of the second current-sharing detection circuit.
7. A power supply method for a whole cabinet, which is applied to the power supply architecture of the whole cabinet as claimed in any one of claims 1 to 6, and comprises the following steps:
respectively acquiring a first current signal and a second current signal at the output ends of a first current-sharing detection circuit and a second current-sharing detection circuit;
comparing the first current signal with the second current signal to obtain a low current signal with a smaller current;
and analyzing the difference value of the first current signal and the second current signal by using an adaptive linear filter, and adjusting the power output power of a power supply in the power supply rack corresponding to the low current signal so as to enable the difference value of the first current signal and the second current signal to meet a preset condition.
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| US6320771B1 (en) * | 2000-04-10 | 2001-11-20 | International Business Machines Corporation | Fault tolerant active current sharing |
| CN101615813A (en) * | 2009-07-20 | 2009-12-30 | 浪潮电子信息产业股份有限公司 | A kind of plate level power supply redundancy backup method |
| EP2639666B1 (en) * | 2012-03-16 | 2020-12-09 | Telefonaktiebolaget LM Ericsson (publ) | Low-noise reference voltages distribution circuit |
| CN104600830B (en) * | 2014-12-31 | 2017-01-18 | 华为技术有限公司 | Current sharing method and system of power supply module and manager |
| CN109327145A (en) * | 2018-11-07 | 2019-02-12 | 国充充电科技江苏股份有限公司 | A kind of Switching Power Supply of output ripple suppression circuit topological structure |
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