CN212695892U - Double-switch power supply hot standby power supply unit - Google Patents
Double-switch power supply hot standby power supply unit Download PDFInfo
- Publication number
- CN212695892U CN212695892U CN202021455816.0U CN202021455816U CN212695892U CN 212695892 U CN212695892 U CN 212695892U CN 202021455816 U CN202021455816 U CN 202021455816U CN 212695892 U CN212695892 U CN 212695892U
- Authority
- CN
- China
- Prior art keywords
- power supply
- diode
- positive
- switch power
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000009977 dual effect Effects 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 208000015778 Undifferentiated pleomorphic sarcoma Diseases 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004402 ultra-violet photoelectron spectroscopy Methods 0.000 description 2
- XXCCGRRUBBGZRE-UHFFFAOYSA-N 4-[1-hydroxy-2-(propan-2-ylamino)ethyl]-2-methoxyphenol Chemical compound COC1=CC(C(O)CNC(C)C)=CC=C1O XXCCGRRUBBGZRE-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model relates to a two switching power supply heat is equipped with power supply unit. The power supply comprises a first switching power supply E1 which is built in or matched with an electric appliance and a second switching power supply E2 which is connected with the E1 in parallel and is the same as the E1, and meanwhile, the power supply is used for supplying power to the electric appliance, and rectifier diodes are respectively arranged at the output ends of E1 and E2. The positive terminals of the output terminals of E1 and E2 are respectively connected with the positive terminals of the diodes. Preferably, E1 and E2 are respectively connected with two paths of different source PDUs to supply power to the electric appliances. The electric appliance is provided with the double-switch power supply hot standby power supply group for supplying power, and the advantages are that: the power supply can provide a standby power supply for the electric appliance, and the unidirectional conductivity of the rectifier diode is utilized to prevent the generation of power supply circulation, so that the structure is simple and the cost is low; the electric energy with two paths of different source power supply environments can be fully utilized; when one path of electric appliance mainboard is short-circuited, the diode can be used as a circuit breaker to protect the main and standby switch power supplies and continuously supply power to the other path of electric appliance; the data link can be widened, and the data transmission can be more stable.
Description
Technical Field
The utility model relates to a switching power supply's hot power supply technical field that is equipped with especially relates to a two switching power supply hot power supply group that is equipped with.
Background
In practical application, the body of some single-power-supply electric appliances is provided with an AC-220V power supply inlet, a switch power supply is arranged in the body, and when the switch power supply fails, the electric appliances are stopped; other single-power-supply electric appliances do not have a built-in switching power supply and only have a direct-current input port, and when the external switching power supply of the electric appliance fails, the electric appliance is stopped. The shutdown of some electrical appliances will bring about very large influence and loss, for example, the shutdown of the serial server is caused by the failure of the built-in switching power supply of the serial server, and the shutdown of the serial server can cause important data to be lost. However, most of the devices except the system servers supply power for the single-switch power supply, and the single-switch power supply device has a large potential safety hazard on data transmission.
Most of power supply systems in production and life are single-source output, and common electric appliances are influenced by a power supply environment, internal amplification, a logic circuit and the like and are mostly single direct current power supply. Therefore, the research of numerous scholars on the power supply focuses on power supply optimization and material selection for many years. The switch power supply performance is improved by deep research on the advantages of the switch power supply relative to a linear power supply, the practical design of the switch power supply, a main circuit and a control circuit of a common switch power supply and the like by Raymond A.Mack, Jr, the university of south China, the Luck and the like, but the switch power supply is deficient in the hot standby aspect and the domestic and foreign research. Some electrical appliance manufacturers (such as DELL, MOXA, etc.) produce some dual-power electrical appliances (such as servers, etc.) aiming at power supply systems with two paths of different sources, but many common electrical appliances are not considered by the manufacturers to provide a dual-switch power supply for the electrical appliances so as to improve the operation stability of the electrical appliances. Some researchers and electrical engineers have discussed parallel connection of dual-switch power supplies on known platforms, and some improvement schemes are proposed for the interior of a single-direct-current inlet electrical appliance, so that the single-direct-current inlet electrical appliance supports double-direct-current input, can improve the stability of equipment operation, and is not feasible for a plurality of alternating-current inlet electrical appliances. At present, only a few power supply equipment companies (such as SOCOMAN in France) produce STS, which supplies power to a single AC inlet appliance by means of a silicon controlled rectifier or a relay switching circuit, but the silicon controlled rectifier needs to be driven, the relay is easy to fail, an STS easy-to-fail node is additionally arranged, and the cost is high.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, an object of the present application is to provide a dual-switch power supply hot standby power supply unit, which is to modify a switch power supply, and implement dual-switch power supply hot standby power supply of an ac/dc inlet electrical appliance, so as to improve the stability of the operation of the electrical appliance.
A dual-switch power supply hot standby power supply set comprises a first switch power supply E1 and a second switch power supply E2, wherein the first switch power supply E1 is built in or matched with an electric appliance, the second switch power supply E2 is connected with an E1 in parallel, the power supply is simultaneously carried out on the electric appliance, and diodes are respectively arranged at the output ends of E1 and E2.
Alternatively, the dual-switching power supply hot-standby power supply set as described above, the second switching power supply E2 is identical to the first switching power supply E1.
Optionally, in the above described dual-switch power supply hot standby power supply set, the diodes are all rectifier diodes.
Alternatively, in the above-mentioned dual-switch power supply hot standby power supply set, the positive terminals of the output terminals of the E1 and E2 are respectively connected with the positive terminals of the diodes.
Optionally, in the above dual-switch power supply hot standby power supply set, the first switch power supply E1 and the second switch power supply E2 are respectively connected to two different source PDUs to supply power to electrical appliances.
Optionally, as for the dual-switch power supply hot standby power supply group, each of E1 and E2 has one output, the first diode VD1 is disposed at the positive end of E1, the second diode VD2 is disposed at the positive end of E2, the positive end of E1 is connected to the positive end of VD1, the positive end of E2 is connected to the positive end of VD2, the negative end of VD1 is connected to the negative end of VD2 to form a connection end, the negative end of E1 is connected to the negative end of E2 to form another connection end, and the two connection ends are used for connecting two power supply ends of an electrical appliance.
Optionally, in the dual-switch power supply hot standby power supply set as described above, the first diode VD1 and the second diode VD2 are identical.
Optionally, in the dual-switch power supply hot standby power supply group as described above, each of E1 and E2 has two outputs, a first diode VD1 is disposed at the positive end of one output of E1, a third diode VD3 is disposed at the positive end of the other output of E1, a second diode VD2 is disposed at the positive end of one output of E2, and a fourth diode VD4 is disposed at the positive end of the other output of E2; the positive ends of the two paths of outputs of E1 are respectively connected with the positive end of VD1 and the positive end of VD3, the positive ends of the two paths of outputs of E2 are respectively connected with the positive end of VD2 and the positive end of VD4, the negative end of VD1 is connected with the negative end of VD2 to form a connecting end, the negative end of VD3 is connected with the negative end of VD4 to form another connecting end, and the two connecting ends are used for respectively connecting one power supply end of a main electrical appliance and a standby electrical appliance.
Optionally, in the dual-switch power supply hot standby power supply set as described above, the first diode VD1, the second diode VD2, the third diode VD3 and the fourth diode VD4 are all the same.
Be equipped with electrical apparatus the utility model discloses two switch power supply heat is equipped with the beneficial effect of power supply unit power supply: 1. the standby power supply can be provided for the electrical appliance, when the main switch power supply fails, the standby switch power supply can continuously supply power to the electrical appliance, and the unidirectional conductivity of the rectifier diode is utilized to prevent the generation of power supply circulation, and the standby switch power supply has a simple structure and low cost; 2. the electric energy with two paths of different source power supply environments can be fully utilized; 3. when one path of electric appliance mainboard is short-circuited, the diode can be used as a circuit breaker to protect the main and standby switch power supplies and continuously supply power to the other path of electric appliance; 4. the double-switch power supply hot standby power supply set can widen a data link and enable data transmission to be more stable. Be equipped with electrical apparatus the utility model discloses a two switch power supply heat is equipped with the power supply unit power supply, breaks through traditional power supply mode, can realize two switch power supply heat and be equipped with, supports the one way hot plug, two switch power supply seamless switching, improve equipment anti power failure ability, the stability of guarantee equipment operation.
Drawings
FIG. 1 is a schematic diagram of a circuit in which two switching power supplies are directly connected in parallel;
FIG. 2 is a schematic circuit diagram of the dual-switch power supply hot standby power supply unit of the present invention;
fig. 3 is a schematic circuit diagram of the dual-switch power supply hot standby power supply unit of the present invention.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
The automatic meteorological observation system has two times of data all-value-free in two years, and the two times of data loss are caused by the fault of a built-in switching power supply of a serial server of a certain model. Although the automatic meteorological observation data transmission has a standby line and is transmitted in an airport by an optical ring network, the parallel of a main line and the standby line is realized on a data link layer, the data is finally converged into a single-power serial server in terms of a physical layer, and the data of the main link and the standby link is influenced if a standby power supply device is lacked and the serial server fails. According to incomplete statistics, a plurality of domestic empty bureaus or substation stations have the same serial server faults. Most of the equipment except each system server supplies power for the single-switch power supply, and although the failure rate of the serial server is not as high as that of the serial server, the single-switch power supply equipment has a large potential safety hazard on data transmission in the case of the failure of the serial server. Similar to the single power supply device of the serial server, the body is provided with an AC-220V power supply inlet, a switching power supply is arranged in the body, and when the switching power supply fails, the serial server is stopped; similar to the serial server Nport, the device itself does not have a built-in switching power supply, and only has a dc input port, and when the external switching power supply fails, Nport stops. Therefore, the double-switch power supply can be connected in parallel to form a hot standby structure for supplying power to the electric appliance.
However, direct parallel connection of the two switching power supplies is not preferred. The built-in or matched switching power supply of the electrical appliance Y is set as a first switching power supply E1, a second switching power supply E2 which is the same as E1 is connected with E1 in parallel, power is supplied to the electrical appliance Y, and a circuit diagram is shown in figure 1. Let the positive pole potential of the first switching power supply E1 be
The positive pole potential of the second switching power supply E2 is
The negative electrode potential of the two power supplies is
Order to
If the delta U is 0, the internal resistance of one power supply can become the load of the other power supply, power supply circulating current can be generated, the power supply is heated, and the stability and the reliability can be reduced along with the heating of the power supply; if Δ U>0, E2 becomes the load of E1, because the internal resistance of the power supply is very small, according to ohm's law
The voltage at the two ends of E1 can make E2 generate larger current, so that the actual power of E2 is far larger than the rated power, and E2 burns out in a short time; on the contrary, when Δ U<0, E1 burned for a short time. Therefore, the two switching power supplies are directly connected in parallel to supply power to the electrical appliance Y, and the disadvantage is more favorable and not favorable.
Based on this, the present application intends to provide a solution to the above technical problem, the details of which will be explained in the following embodiments.
Example 1
The embodiment provides a dual-switch power supply hot standby power supply set, as shown in fig. 2, which includes a first switch power supply E1 built in or matched with a consumer Y, and a second switch power supply E2 identical to E1, where E1 is connected in parallel with E2, and supplies power to the consumer Y. E1 and E2 all have only one way of output, and set up first diode VD1 at the positive terminal of E1, set up second diode VD2 at the positive terminal of E2, the positive terminal of E1 is connected with the positive terminal of VD1, the positive terminal of E2 is connected with the positive terminal of VD2, the negative terminal of VD1 and the negative terminal of VD2 link together and form a connecting end and connect a power input end of electrical apparatus Y, the negative terminal of E1 and the negative terminal of E2 link together and form a connecting end and connect another power input end of electrical apparatus Y. Preferably, the first diode VD1 and the second diode VD2 are both rectifier diodes, and VD1 and VD2 are both identical diodes.
The working principle of the double-switch power supply hot standby power supply unit of the embodiment is that
When the current is output by the positive pole of E1 and flows through VD1 and the negative pole of electrical appliance Y to E1, the voltage exists between the positive poles of E1 and E2
Since VD1 blocks current from the positive pole of E1, current cannot flow from the positive pole of E1 to the positive pole of E2, while E2 does not output current. When in use
And
the same applies. The switching power supply with high positive electrode potential works with load, and the switching power supply with low positive electrode potential does not output current and is in a standby state. The rectifier diodes here serve to protect the power supply by preventing the parallel-connected switching power supplies from generating power supply circulating currents. The rectifier diode can prevent the power supply from generating the circulation current, and simultaneously can be used as the circuit breaking protector of the switch power supply, when the electrical appliance Y is in short circuit, the electrical appliance Y can be burnt in advance to protect the switch power supply.
The installation of the double-switch power supply hot standby power supply unit of the embodiment: for the electrical equipment with the built-in first switching power supply E1, an alternating current interface can be fixed by punching a hole in the shell of the electrical equipment, a second switching power supply E2 with the same model as the electrical equipment is installed inside, rectifying diodes VD1 and VD2 are welded on the anodes of the two switching power supplies respectively and then are connected in parallel, and preferably, the two alternating current inlets are connected to different sources of PDU respectively to supply power for the electrical equipment. To more strongly secure the operation of the equipment, in some important Power generation applications, each cabinet is labeled with two PDUs (Power Distribution units) from two UPSs. The double-switch power supply device is provided, and the two PDU power supply devices respectively supply power, and the single-switch power supply device supplies power nearby. For the electric appliance only with the direct current inlet, the switch power supply and the wiring terminal can be fixed by utilizing the guide rail, the rectifier diode is fixed on the wiring terminal, the two switch power supplies are connected in parallel by utilizing the conducting wire and the short-circuit piece and then connected with the plug matched with the direct current inlet of the electric appliance, and preferably, the two switch power supplies are respectively connected with two paths of different source PDU for supplying power to the electric appliance. Under the environment with two paths of power supply from different sources, the dual-switch power supply hot standby power supply group of the embodiment has more favorable guarantee for stable operation and data transmission of the electric appliance.
Example 2
The switch power supply mostly has two routes of outputs, supports many loads work, and some important consumer are mostly the activestandby while operation, can utilize the two switch power supply heat of this embodiment to be equipped with the power supply group, for main, stand-by electrical equipment Y1, Y2 power supply simultaneously. The embodiment provides a dual-switch power supply hot standby power supply set, as shown in fig. 3, which includes a first switch power supply E1 built in or matched with an electrical appliance, and a second switch power supply E2 identical to E1, where E1 is connected in parallel with E2 and supplies power to an electrical appliance U; the E1 and the E2 are provided with two paths of outputs, a first diode VD1 is arranged at the positive end of one path of output of the E1, a third diode VD3 is arranged at the positive end of the other path of output of the E1, a second diode VD2 is arranged at the positive end of one path of output of the E2, and a fourth diode VD4 is arranged at the positive end of the other path of output of the E2; the positive ends of the two paths of outputs E1 are respectively connected with the positive end of VD1 and the positive end of VD3, and the positive ends of the two paths of outputs E2 are respectively connected with the positive end of VD2 and the positive end of VD 4; the negative end of the VD1 is connected with the negative end of the VD2 to form a connecting end, the negative end of the VD3 is connected with the negative end of the VD4 to form another connecting end, and the two connecting ends are used for being respectively connected with a power supply end of the main and standby electrical appliances Y1 and Y2.
As shown in fig. 3, firstly, the electric equipment Y2 of the same model is installed beside the electric equipment Y1, a backup link is set on the physical layer, the switching power supply hot standby power supply set of the embodiment is utilized to simultaneously supply power to the two electric equipments, preferably, the two switching power supplies respectively take power from the first PDU and the second PDU, that is, the production power is respectively supplied by the two UPSs. In the range of meeting the power demand of the power equipment Y1, the voltage of the first switching power supply E1 is higher than that of the second switching power supply E2, the first switching power supply E1 is used as a main power supply and supplies power to the standby power equipment Y1 and Y2 in a normal state, and the second switching power supply E2 is in a non-output current state. When the second PDU fails or the second switching power supply E2 fails, the first switching power supply E1 is not influenced to supply power for the main and standby electric equipment Y1 and Y2; when the first PDU (power distribution unit) fails or the first switching power supply E1 fails, the first switching power supply E1 stops working, and meanwhile, the second switching power supply E2 supplies power to the main and standby electric equipment Y1 and Y2, so that the electric equipment is prevented from being shut down. When the main electric equipment Y1 has short-circuit fault, the rectifier diodes VD1 and VD2 are burnt, the safety of the switching power supplies E1 and E2 is protected, and the standby electric equipment Y2 can continue to work normally; when the standby electric equipment Y2 has short-circuit fault, the rectifier diodes VD3 and VD4 are burnt, the safety of the switching power supplies E1 and E2 is protected, and the main electric equipment Y1 can continue to work normally.
The dual-switch power supply hot standby power supply unit has powerful power supply guarantee for the equipment combination with the main equipment and the standby equipment working in parallel and the main data and the standby data transmitted by the main equipment and can effectively reduce the probability of data transmission interruption. Under the environment with two paths of power supply from different sources, the dual-switch power supply hot standby power supply group of the embodiment has more favorable guarantee for stable operation and data transmission of the electric appliance.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (9)
1. A dual-switch power supply hot standby power supply set is characterized by comprising a first switch power supply E1 and a second switch power supply E2, wherein the first switch power supply E1 is built in or matched with an electric appliance, the second switch power supply E2 is connected with the E1 in parallel, power is supplied to the electric appliance, and diodes are arranged at the output ends of E1 and E2 respectively.
2. The dual switching power supply hot standby power pack of claim 1, wherein said second switching power supply E2 is identical to said first switching power supply E1.
3. A dual switching power hot standby power supply pack according to claim 1 wherein said diodes are rectifier diodes.
4. A dual switching power hot standby power pack according to claim 1, wherein the positive terminals of the output terminals of E1 and E2 are connected to the positive terminals of diodes, respectively.
5. The dual-switch power supply hot-standby power supply set according to any one of claims 1 to 4, wherein the first switch power supply E1 and the second switch power supply E2 are respectively connected with two different source PDUs for supplying power to electric appliances.
6. A dual-switch power supply hot standby power supply set as claimed in claim 1, wherein each of E1 and E2 has one output, the first diode VD1 is arranged at the positive terminal of E1, the second diode VD2 is arranged at the positive terminal of E2, the positive terminal of E1 is connected with the positive terminal of VD1, the positive terminal of E2 is connected with the positive terminal of VD2, the negative terminal of VD1 is connected with the negative terminal of VD2 to form a connection terminal, the negative terminal of E1 is connected with the negative terminal of E2 to form another connection terminal, and the two connection terminals are used for connecting the two power supply terminals of the electrical appliance.
7. The dual-switch power hot standby power supply set of claim 6, wherein the first diode VD1 and the second diode VD2 are identical.
8. A dual-switch power supply hot standby power supply set as claimed in claim 1, wherein each of E1 and E2 has two outputs, a first diode VD1 is provided at the positive terminal of one output of E1, a third diode VD3 is provided at the positive terminal of the other output of E1, a second diode VD2 is provided at the positive terminal of one output of E2, and a fourth diode VD4 is provided at the positive terminal of the other output of E2; the positive ends of the two paths of outputs of E1 are respectively connected with the positive end of VD1 and the positive end of VD3, the positive ends of the two paths of outputs of E2 are respectively connected with the positive end of VD2 and the positive end of VD4, the negative end of VD1 is connected with the negative end of VD2 to form a connecting end, the negative end of VD3 is connected with the negative end of VD4 to form another connecting end, and the two connecting ends are used for respectively connecting a power supply end of a main electrical appliance and a power supply end of a standby electrical appliance.
9. The dual-switching mains thermally prepared supply pack of claim 8, wherein the first diode VD1, the second diode VD2, the third diode VD3 and the fourth diode VD4 are identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021455816.0U CN212695892U (en) | 2020-07-17 | 2020-07-17 | Double-switch power supply hot standby power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021455816.0U CN212695892U (en) | 2020-07-17 | 2020-07-17 | Double-switch power supply hot standby power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212695892U true CN212695892U (en) | 2021-03-12 |
Family
ID=74898602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021455816.0U Expired - Fee Related CN212695892U (en) | 2020-07-17 | 2020-07-17 | Double-switch power supply hot standby power supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212695892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI828447B (en) * | 2022-08-17 | 2024-01-01 | 台達電子工業股份有限公司 | Dual power switching system and method of control the same |
-
2020
- 2020-07-17 CN CN202021455816.0U patent/CN212695892U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI828447B (en) * | 2022-08-17 | 2024-01-01 | 台達電子工業股份有限公司 | Dual power switching system and method of control the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105591460B (en) | System and method for battery management | |
| CN102130467B (en) | Open circuit voltage protection system and method | |
| JP6047490B2 (en) | Power supply system, power distribution device, and power control method | |
| US9711967B1 (en) | Off grid backup inverter automatic transfer switch | |
| KR101147205B1 (en) | Apparatus and method of controlling high current, and power storage apparatus using the same | |
| CN104065157A (en) | Uninterruptible power supply with improved power supply reliability | |
| Liu et al. | VSCs-HVDC may improve the Electrical Grid Architecture in future world | |
| CN203339769U (en) | Online energy storage power supply for photovoltaic and mains supply complementary input | |
| CN106253465A (en) | Communication base station hybrid power supply and energy-storage system | |
| US12003096B2 (en) | Photovoltaic power generation system, photovoltaic inverter, and direct current combiner box | |
| CN102340138A (en) | Power supply and distribution system for building | |
| JP6369803B2 (en) | Power storage device | |
| JP2020127357A (en) | Charge/discharge device and power supply switching system | |
| CN212695892U (en) | Double-switch power supply hot standby power supply unit | |
| KR20170026695A (en) | Hybrid energy storage system | |
| JP2018061432A (en) | Charge and discharge device | |
| CN105305493B (en) | A kind of light for interconnected operation stores up independent micro-capacitance sensor topology | |
| CN206378576U (en) | A kind of UPS burn-in tests topological structure and topological network | |
| JP6109380B2 (en) | Distributed power system | |
| CN203339768U (en) | Backup energy storage power supply for photovoltaic and mains supply complementary input | |
| JP2013093972A (en) | Distributed power supply system and cable run switching device | |
| CN104993696B (en) | DC/DC converts boost module | |
| CN105591461A (en) | Storage battery auto-switching system for communication unit of power transmission line tower | |
| JP6188871B2 (en) | Distributed power system | |
| CN205921447U (en) | Gas turbine test platform power supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210312 |