CN113364112A - Automatic switching method and device for standby power supply of terminal - Google Patents
Automatic switching method and device for standby power supply of terminal Download PDFInfo
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- CN113364112A CN113364112A CN202110695369.9A CN202110695369A CN113364112A CN 113364112 A CN113364112 A CN 113364112A CN 202110695369 A CN202110695369 A CN 202110695369A CN 113364112 A CN113364112 A CN 113364112A
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005669 field effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 15
- 230000006872 improvement Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Sources (AREA)
Abstract
The invention relates to a method for automatically switching a standby power supply of a terminal, which comprises the following steps: step S1, judging whether the output signal X of the power grid is at a low level; step S2, judging whether the output signal Y of the logic device is in high level; step S3, closing an output loop of the standby power supply, supplying power to the intelligent terminal until the residual electric quantity of the standby power supply is insufficient, and controlling the intelligent terminal to stop working by the logic controller; step S4, determining in real time whether the output signal X is at a high level: if so, disconnecting the output loop of the standby power supply and supplying power to the intelligent terminal through the power grid. The switching of the standby power supply is controlled by the logic controller, the processing of the standby power supply by the central processing unit is avoided, the situation that the standby power supply cannot be switched due to the fact that a program flies or resets when software runs can be prevented, and the reliability of power supply switching is improved to a certain extent.
Description
Technical Field
The invention relates to the field of electric instruments, in particular to a method and a device for automatically switching a terminal standby power supply.
Background
With the continuous development of science and technology, electric energy is the most widely used energy form in the current society, and the main carrier of the electric energy is electric power equipment. Most of the existing power equipment is developed towards intellectualization. The intelligent terminal is used as an important basic device of intelligent power equipment, adopts a modular design, integrates functions of metering, communication, control, acquisition, loop detection and the like, and is an essential important ring for high-quality operation of an intelligent power grid. In actual life, because various reasons, the power failure incident happens occasionally, leads to intelligent terminal no power input after having a power failure, and unable operation brings very big inconvenience for fortune dimension work. Therefore, a standby power supply is arranged on an intelligent terminal mostly at present, the standby power supply independently exists when power is on, and the standby power supply is involved in working when power is off to supply power to the terminal.
When supplying power to intelligent terminal, need switch between power and stand-by power supply, it judges whether the power has the electricity to mostly present through reading the data of handing over to adopt that measurement chip gathered, stand-by power supply's voltage again, and the comparison back is synthesized and control stand-by power supply and supply power to intelligent terminal. The adoption of the method for judging has the advantages that firstly, the resources of the central processing unit are occupied, secondly, the consistency of products cannot be ensured, and the problem of repeated restarting misoperation is easy to generate. Therefore, an automatic control method for switching of the standby power supply suitable for the terminal is provided.
Disclosure of Invention
Therefore, it is necessary to provide a method and an apparatus for automatically switching a standby power supply of a terminal, aiming at the problem of how to control the automatic switching of the standby power supply through hardware and supply power to an intelligent terminal.
The invention is realized by adopting the following technical scheme: a terminal standby power supply automatic switching method is used for controlling automatic switching of a standby power supply to supply power to an intelligent terminal, and comprises the following steps:
step S1, determining whether the output signal X of the power grid is at a low level by the logic device: if yes, judging that the power grid is powered off, and executing step S2; if not, judging that the power grid is electrified;
step S2, determining whether the output signal Y of the logic device is at a high level: if yes, go to step S3; if not, judging that the residual electric quantity of the standby power supply is insufficient, and controlling the intelligent terminal to stop working by the logic controller;
step S3, an output loop of the standby power supply is closed, power is supplied to the intelligent terminal, and the logic controller controls the intelligent terminal to stop working until the residual electric quantity of the standby power supply is insufficient;
step S4, determining in real time whether the output signal X is at a high level: if so, disconnecting an output loop of the standby power supply and supplying power to the intelligent terminal through the power grid; if not, step S2 is executed.
The switching of the standby power supply is controlled by the logic controller, so that the processing of the standby power supply by the central processing unit is avoided, the processing items of the central processing unit are effectively reduced, the program can be prevented from flying or resetting when software runs, the standby power supply can not be switched, and the reliability of power supply switching is improved to a certain extent; the standby power supply is used as a power supply of the logic device, the change of the residual capacity of the standby power supply during working is ingeniously utilized to drive the change of the working state of the logic device, and when the residual capacity of the standby power supply is not enough to support the intelligent terminal to work, the logic device controls the intelligent terminal to stop working.
As a further improvement of the above solution, in step S1, when the power grid is powered, the power grid outputs 5V of direct current to supply power to the smart terminal.
As a further improvement of the above scheme, when the power grid is powered, the power grid charges the backup power supply by outputting another 5.5V direct current.
As a further improvement of the above scheme, the logic device is composed of a not gate, which is powered by the standby power supply, and the output signal X and the output signal Y are in signal inversion.
The invention also discloses a terminal standby power supply automatic switching device, which adopts the terminal standby power supply automatic switching method to control the automatic switching of the standby power supply so as to supply power to the intelligent terminal, and the automatic switching device comprises:
the charging unit module is used for converting alternating current output by the power supply module into direct current and charging a standby power supply, and the power supply module is used for supplying power to the intelligent terminal;
the boost module is used for boosting the output current of the standby power supply and supplying power to the intelligent terminal through the control module; and
and the logic module is used for receiving the output signal X of the power supply module and the output signal of the standby power supply and controlling the switch of the control unit through the output signal Y of the logic module.
As a further improvement of the above scheme, the power module outputs 5V dc power through another dc converter to power the intelligent terminal.
As a further improvement of the above scheme, the charging unit module converts 12V ac power into 5.5V dc power through a dc converter.
As a further improvement of the above scheme, the logic module includes a logic circuit composed by taking a logic device as a core.
As a further improvement of the above scheme, when the output signal Y of the logic module is at a low level, the control module is turned off, and the standby power supply is in a charging state.
As a further improvement of the scheme, the control module is constructed by taking a field effect transistor or a relay as a core and matching with a peripheral circuit.
The invention has the beneficial effects that:
1. the switching of the standby power supply is controlled by the logic controller, so that the processing of the standby power supply by the central processing unit is avoided, the processing items of the central processing unit are effectively reduced, the program can be prevented from flying or resetting when software runs, the standby power supply can not be switched, and the reliability of power supply switching is improved to a certain extent;
2. the standby power supply is used as a power supply of the logic device, the change of the residual capacity of the standby power supply during working is ingeniously utilized to drive the change of the working state of the logic device, and when the residual capacity of the standby power supply is not enough to support the intelligent terminal to work, the logic device controls the intelligent terminal to stop working.
Drawings
Fig. 1 is a flowchart of an automatic switching method for a standby power supply of a terminal according to embodiment 1 of the present invention.
Fig. 2 is a schematic block diagram of an automatic switching device for a standby power supply of a terminal according to embodiment 2 of the present invention.
Fig. 3 is a schematic diagram illustrating operation of logic modules of the automatic switching device for standby power of the terminal in fig. 2.
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 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.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1, the present embodiment describes a method for automatically switching a standby power supply of a terminal, which is used to control the automatic switching of the standby power supply to supply power to an intelligent terminal. The automatic switching method comprises the following steps:
step S1, determining whether the output signal X of the power grid is at a low level by the logic device: if yes, judging that the power grid is powered off, and executing step S2; if not, the power grid is judged to be electrified. When the output signal X is at a low level, the output of the logic device is 0, and the power failure of the power grid is judged; when the output signal X is at a high level, the output of the logic device is 1, and the power grid is judged to be electrified. When the power grid is electrified, the power grid supplies power to the intelligent terminal by outputting 5V direct current so as to enable the intelligent terminal to work, and meanwhile, the power grid charges the standby power supply by outputting another 5.5V direct current.
Step S2, determining whether the output signal Y of the logic device is at a high level: if yes, go to step S3; if not, judging that the residual electric quantity of the standby power supply is insufficient, and stopping the logic device. After the power failure of the power grid is judged, whether the residual capacity of the standby power supply is sufficient needs to be judged. If the residual capacity of the standby power supply is enough to support the intelligent terminal to work, the output signal Y of the logic device is at a high level, and the output is 1; and if the residual capacity of the standby power supply is not enough to support the work of the intelligent terminal, the output signal Y of the logic device is at a low level, and the output is 0. The logic device is composed of a NOT gate, the power supply is supplied by the standby power supply, and the output signal X and the output signal Y are in signal reversal.
And S3, closing an output loop of the standby power supply, supplying power to the intelligent terminal until the residual electric quantity of the standby power supply is insufficient, and controlling the intelligent terminal to stop working by the logic controller. When the residual capacity of the standby power supply is not enough to support the intelligent terminal to work, the output signal Y of the logic device is at a low level, the output is 0, and therefore the intelligent terminal is controlled to stop working.
Step S4, determining in real time whether the output signal X is at a high level: if so, disconnecting an output loop of the standby power supply and supplying power to the intelligent terminal through the power grid; if not, step S2 is executed. The power system can be powered on after power failure, when the power system is powered on, the output signal X is at a high level, the logic controller controls the standby power supply to be disconnected at the moment, the intelligent terminal is powered on through the power system, and the power system can charge the standby power supply to supplement the lost electric quantity.
As shown in table 1, the logic device determines the type of the output signal Y by detecting the remaining power of the backup power Vcc and the output signal X of the power grid, and when the backup power Vcc is input to 1, it represents that the remaining power is sufficient to support the operation of the smart terminal, and when the backup power Vcc is input to 0, it represents that the remaining power is insufficient to support the operation of the smart terminal; when the output signal X of the power grid is 1, representing that the power grid is electrified, and when the output signal X of the power grid is 0, representing that the power grid is powered off; when the output signal Y of the logic device is 1, the intelligent terminal is powered through the standby power supply Vcc, and when the output signal Y of the logic device is 0, the intelligent terminal is powered through the power grid. As can be seen from table 1, when the standby power Vcc input is 1 and the output signal X of the power grid is 1, the output signal Y of the logic device is 0, and at this time, the power is supplied to the intelligent terminal through the power grid; when the input of the standby power supply Vcc is 1 and the output signal X of the power grid is 0, the output signal Y of the logic device is 1, and at the moment, the intelligent terminal is powered by the standby power supply Vcc; when the standby power supply Vcc input is 0 and the output signal X of the power grid is 1, the output signal Y of the logic device is 0, and at the moment, the intelligent terminal is powered through the power grid; when the standby power supply Vcc input is 0 and the output signal X of the power grid is 0, the output signal Y of the logic device is 0, at the moment, the standby power supply Vcc and the power grid are both dead, and the intelligent terminal stops working.
The beneficial effects of this embodiment are as follows: the switching of the standby power supply is controlled by the logic controller, so that the processing of the standby power supply by the central processing unit is avoided, the processing items of the central processing unit are effectively reduced, the program can be prevented from flying or resetting when software runs, the standby power supply can not be switched, and the reliability of power supply switching is improved to a certain extent; the standby power supply is used as a power supply of the logic device, the change of the residual capacity of the standby power supply during working is ingeniously utilized to drive the change of the working state of the logic device, and when the residual capacity of the standby power supply is not enough to support the intelligent terminal to work, the logic device controls the intelligent terminal to stop working.
Logic truth table of logic device in table 1
| Vcc | X | Y |
| 1 | 1 | 0 |
| 1 | 0 | 1 |
| 0 | 1 | 0 |
| 0 | 0 | 0 |
Example 2
Referring to fig. 2, this embodiment describes an automatic switching device for a standby power supply of a terminal, which controls automatic switching of the standby power supply by using the automatic switching method for the standby power supply of the terminal of embodiment 1 to supply power to an intelligent terminal. The automatic switching device includes: the device comprises a charging unit module, a boosting module, a control module and a logic module.
The charging unit module charges the standby power supply after converting 12V alternating current provided by the power supply module into 5.5V direct current through the direct current converter, and the power supply module outputs 5V direct current through another direct current converter to supply power to the intelligent terminal.
The boost module boosts the output current of the standby power supply and supplies power to the intelligent terminal through the control module, and the control module is constructed by taking a field effect transistor or a relay as a core and matching with a peripheral circuit
Referring to fig. 3, the logic module is configured to receive an output signal X of the power module and an output signal of the standby power Vcc, and control the control unit to open and close through an output signal Y of the logic module. The logic module is a logic circuit formed by taking a logic device as a core, when the standby power supply Vcc input is high level and the output signal X of the power supply module is high level, the output signal Y of the logic module is low level, and at the moment, the intelligent terminal is powered through the power supply module; when the standby power supply Vcc input is high level and the output signal X of the power supply module is low level, the output signal Y of the logic module is high level, and at the moment, the intelligent terminal is powered through the standby power supply Vcc; when the standby power supply Vcc input is low level and the output signal X of the power supply module is high level, the output signal Y of the logic module is low level, and at the moment, the intelligent terminal is powered through the power supply module; when the standby power supply Vcc input is low level and the output signal X of the power module is low level, the output signal Y of the logic module is low level, at the moment, the standby power supply Vcc and the power module are both electroless, and the intelligent terminal stops working.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A terminal standby power supply automatic switching method is used for controlling automatic switching of a standby power supply so as to supply power to an intelligent terminal, and is characterized by comprising the following steps:
step S1, determining whether the output signal X of the power grid is at a low level by the logic device: if yes, judging that the power grid is powered off, and executing step S2; if not, judging that the power grid is electrified;
step S2, determining whether the output signal Y of the logic device is at a high level: if yes, go to step S3; if not, judging that the residual electric quantity of the standby power supply is insufficient, and controlling the intelligent terminal to stop working by the logic controller;
step S3, an output loop of the standby power supply is closed, power is supplied to the intelligent terminal, and the logic controller controls the intelligent terminal to stop working until the residual electric quantity of the standby power supply is insufficient;
step S4, determining in real time whether the output signal X is at a high level: if so, disconnecting an output loop of the standby power supply and supplying power to the intelligent terminal through the power grid; if not, step S2 is executed.
2. The method for automatically switching the standby power supply of the terminal according to claim 1, wherein in step S1, when the power grid is powered on, the power grid supplies power to the intelligent terminal by outputting 5V of direct current.
3. A method according to claim 2, wherein the power grid is charged by outputting another 5.5V dc current when it is powered.
4. The method according to claim 1, wherein the logic device comprises a not gate, which is powered by the standby power supply, and the output signal X is in a signal inverse direction with respect to the output signal Y.
5. An automatic switching device of a terminal standby power supply, which controls the automatic switching of the standby power supply by adopting the automatic switching method of the terminal standby power supply according to any one of claims 1 to 4 to supply power to an intelligent terminal, the automatic switching device comprising:
the charging unit module is used for converting alternating current output by the power supply module into direct current and charging a standby power supply, and the power supply module is used for supplying power to the intelligent terminal;
the boost module is used for boosting the output current of the standby power supply and supplying power to the intelligent terminal through the control module; and
and the logic module is used for receiving the output signal X of the power supply module and the output signal of the standby power supply and controlling the switch of the control unit through the output signal Y of the logic module.
6. The automatic switching device for the standby power supply of the terminal as claimed in claim 5, wherein the power supply module outputs 5V direct current through another direct current converter to supply power to the intelligent terminal.
7. The automatic switching device for the standby power supply of the terminal as claimed in claim 5, wherein the charging unit module converts 12V AC power into 5.5V DC power through a DC converter.
8. The automatic switching device for the standby power of the terminal as claimed in claim 5, wherein the logic module comprises a logic circuit with a logic device as a core.
9. The automatic switching device of a standby power supply of a terminal as claimed in claim 5, wherein when the output signal Y of the logic module is at a low level, the control module is turned off, and the standby power supply is in a charging state.
10. The automatic switching device for the standby power supply of the terminal as claimed in claim 9, wherein the control module is constructed by taking a field effect transistor or a relay as a core and matching with a peripheral circuit.
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| CN202110695369.9A CN113364112A (en) | 2021-06-23 | 2021-06-23 | Automatic switching method and device for standby power supply of terminal |
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| CN202110695369.9A CN113364112A (en) | 2021-06-23 | 2021-06-23 | Automatic switching method and device for standby power supply of terminal |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572420A (en) * | 2008-04-30 | 2009-11-04 | 冉茂鑫 | Current type double-input uninterrupted switch power supply |
| CN101714778A (en) * | 2009-11-22 | 2010-05-26 | 苏州佳世达电通有限公司 | Power supply switching device |
| CN110535230A (en) * | 2019-09-11 | 2019-12-03 | 上海移远通信技术股份有限公司 | Electric power controller and terminal device |
| CN211744131U (en) * | 2020-04-29 | 2020-10-23 | 武汉秦唐科技发展有限公司 | Intelligent uninterrupted power supply capable of achieving ultra-long standby |
-
2021
- 2021-06-23 CN CN202110695369.9A patent/CN113364112A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572420A (en) * | 2008-04-30 | 2009-11-04 | 冉茂鑫 | Current type double-input uninterrupted switch power supply |
| CN101714778A (en) * | 2009-11-22 | 2010-05-26 | 苏州佳世达电通有限公司 | Power supply switching device |
| CN110535230A (en) * | 2019-09-11 | 2019-12-03 | 上海移远通信技术股份有限公司 | Electric power controller and terminal device |
| CN211744131U (en) * | 2020-04-29 | 2020-10-23 | 武汉秦唐科技发展有限公司 | Intelligent uninterrupted power supply capable of achieving ultra-long standby |
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