CN104635910A - Power management control system for computer - Google Patents
Power management control system for computer Download PDFInfo
- Publication number
- CN104635910A CN104635910A CN201410843938.XA CN201410843938A CN104635910A CN 104635910 A CN104635910 A CN 104635910A CN 201410843938 A CN201410843938 A CN 201410843938A CN 104635910 A CN104635910 A CN 104635910A
- Authority
- CN
- China
- Prior art keywords
- power
- computer
- control system
- controller
- management control
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a power management control system for a computer. The power management control system for the computer comprises a central controller, a power-saving controller, a power sensor, a server, a power source and a relay protector. The central controller is arranged at the topmost end of the power management control system of the computer, the power-saving controller is arranged at the lower end of the central controller, the power sensor is arranged at the lower end of the power-saving controller, the server is arranged at the lower end of the power sensor, the power source is arranged at the lower end of the server, and the relay protector is arranged on the left side of the server. The power management control system for the computer solves the problem that power management technologies based on an OS and not based on the OS usually have conflicts when being used for managing a computer system, dynamic power management of the computer can be achieved, and energy is saved.
Description
Technical field
The invention belongs to data transfer of computer technical field, particularly relate to a kind of computer power management control system.
Background technology
Along with the high speed development of computer technology, the field that computing machine uses is also more and more extensive, and computing machine generally includes the combination of hardware and software component, application program, operating system, server, bus, storer, input-output apparatus etc.Along with the performance of computing machine promotes more and more higher by the progress of semiconductor technology and computer architecture, more senior computer software has developed into the superior performance utilizing hardware, causes current computing machine more much bigger by force than the computing machine before only several years.Present computer system can consume a large amount of power, and generates a large amount of heats.In order to power consumption and the heat generation of computer for controlling, operating system (' OS ') and computer server deviser achieve the power management techniques performed by OS, are similar to ACPI (' the ACPI ') module of most modern operating system.This type of power management techniques based on OS carrys out the power consumption of supervisory computer according to the performance of computer server.The software that other power management techniques perform using the part not as OS in a computer realizes.In fact, this type of non-power management techniques based on OS realizes usually in the upper software performed of server (such as service server, it is not the master server of computing machine).This type of non-power management techniques based on OS is only according to the temperature, electric current, performance number etc. measured instead of the power consumption carrying out supervisory computer server according to the performance of computer server.Although based on OS and the non-power consumption that all can to manage based on both OS in a computing machine simultaneously, not cooperation between this type of power management based on OS and the non-power management techniques based on OS at present.Therefore, usually clash when the power of managing computer system based on OS and the non-power management techniques based on OS.
Summary of the invention
The embodiment of the present invention provides a kind of computer power management control system, is intended to solve the problem clashed when usually to clash when the power of managing computer system based on OS and the non-power management techniques based on OS usually at the power of managing computer system based on OS and the non-power management techniques based on OS.
The embodiment of the present invention is achieved in that a kind of computer power management control system, and this computer power management control system comprises central controller, economizes power controller, power sensor, server, power supply and relay protector; Economize power controller and connect central controller, power sensor connects economizes power controller, and server connects power sensor, power supply connection server, relay protector connection server;
Central controller also comprises: the non-transient computer-readable medium of processor and storing machine instructions, machine readable instructions comprises: query compiler device, identify in Structured Query Language (SQL) inquiry and each of multiple user-defined function is called, the multiple data partition of query compiler device identification, each data partition is associated with one of in multiple user-defined function and is identified from one of GROUP BY expression formula and OLAP window expression formula, one of to make in multiple data partition to be different from another data partition in described multiple data partition; And processing engine, run the part of multiple user-defined function as SQL query, one of to make in multiple user-defined function to consume the field that exported by another user-defined function in described multiple user-defined function as input;
Wherein each user-defined function has the metadata being exposed to query compiler device and processing engine, metadata indicate this user-defined function can one of in GROUP BY expression formula and OLAP expression formula in run.
Further, central controller comprises interface insert row, electronic lock, switching on and shutting down button, supervisory keyboard; Interface insert row is arranged on the upper end, left side of central controller, and electronic lock is arranged on the lower end of interface insert row, and described switching on and shutting down button is arranged on the right side of electronic lock, and described supervisory keyboard is arranged on the upside of switching on and shutting down button.
Further, power sensor comprises power measurement resistance and power measurement controller; Power measurement resistance is arranged on the left side of power sensor, and power measurement controller is arranged on the right side of power measurement resistance;
Power measurement controller comprises attaching plug, display screen, capacitance body; Attaching plug is arranged on the right side of the lower end of power measurement controller, and display screen is arranged on the upper end of power measurement controller, and capacitance body is arranged on the lower end of display screen.
Further, relay protector comprises mutual inductor, discriminating unit, processor, switching winding; Mutual inductor is arranged on the front end of relay protector, and discriminating unit is arranged on the rear end of mutual inductor, and processor is arranged on the rear end of discriminating unit, and switching winding is arranged on the rear end of processor;
Mutual inductor specifically adopts De Lixi current transformer LMK3-0.66 2000/5 Φ 100;
Capacitance body specifically adopts high-quality electrochemical capacitor body 50V/4700uF, and specification is 22X40MM.
Further, power supply specifically adopts rechargeable type accumulator.
Further, power sensor adopts capacitance microwave power sensor, with GaAs or Si substrate for substrate, GaAs or Si substrate is provided with co-planar waveguide, the semi-girder that connection one is perpendicular with co-planar waveguide on co-planar waveguide ground wire, semi-girder is suspended on the top of co-planar waveguide, is provided with a sensing electrode in the below of semi-girder end; Cantilever depth of beam is 1 ~ 3 micron.
Further, the guard method of relay protector:
Obtain the voltage parameter of the protected power circuit provided by three voltage transformer (VT), voltage transformer (VT) is connected with protected power circuit respectively according to delta connection mode or star-star connection mode;
Obtain voltage parameter, when voltage transformer (VT) is connected with protected power circuit according to delta connection mode, the voltage parameter obtained is processed, make process after voltage parameter can be mutually compatible with the judgment mode of preset relay protection, adopt the judgment mode of preset relay protection to judge whether to need to carry out relay protection to protected power circuit according to the voltage parameter after process, preset relay protection judgment mode is that the voltage parameter provided according to the voltage transformer (VT) adopting Y-connection mode to be connected with protected power circuit designs;
When voltage transformer (VT) is connected with protected power circuit according to star-star connection mode, the judgment mode of preset relay protection is adopted to judge whether to need to carry out relay protection to protected power circuit according to the voltage parameter obtained;
When needs carry out relay protection to protected power circuit, the make-break operation of pilot relay unit;
When voltage transformer (VT) is connected with protected power circuit according to delta connection mode; judge that whether the judgment mode of preset relay protection is that zero sequence overcurrent protection judges; if so, then judgment mode be set to without exception because condition does not meet and cannot perform.
Computer power management control system provided by the invention, arranges province's power controller and power sensor, avoid based on OS and the non-power management techniques based on OS usually when managing computer system power clash.Computer power management control system solves the problem usually clashed when the power of managing computer system based on OS and the non-power management techniques based on OS, can realize the dynamic power management of computing machine, save the energy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the computer power management control system that the embodiment of the present invention provides;
Fig. 2 is the central controller structural representation of the computer power management control system that the embodiment of the present invention provides;
Fig. 3 is the power measurement controller architecture schematic diagram of the computer power management control system that the embodiment of the present invention provides;
Fig. 4 is the relay protector structural representation of the computer power management control system that the embodiment of the present invention provides;
In figure: 1, central controller; 1-1, interface insert row; 1-2, electronic lock; 1-3, switching on and shutting down button; 1-4, supervisory keyboard; 2, power controller is economized; 3, power sensor; 3-1, power measurement resistance; 3-2, power measurement controller; 3-2-1, attaching plug; 3-2-2, display screen; 3-2-3, capacitance body; 4, server; 5, power supply; 6, relay protector; 6-1, mutual inductor; 6-2, discriminating unit; 6-3, processor; 6-4, switching winding.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of computer power management control system, comprises central controller 1, economizes power controller 2, power sensor 3, server 4, power supply 5 and relay protector 6; Described central controller 1 is arranged on the top of computer power management control system; described province's power controller 2 is arranged on the lower end of central controller 1; described power sensor 3 is arranged on the lower end of province's power controller 2; described server 4 is arranged on the lower end of power sensor 3; described power supply 5 is arranged on the lower end of server 4, and described relay protector 6 is arranged on the left side of server 4.
Further, described central controller 1 comprises interface insert row 1-1, electronic lock 1-2, switching on and shutting down button 1-3, supervisory keyboard 1-4; Described interface insert row 1-1 is arranged on the upper end, left side of central controller 1, described electronic lock 1-2 is arranged on the lower end of interface insert row 1-1, described switching on and shutting down button 1-3 is arranged on the right side of electronic lock 1-2, and described supervisory keyboard 1-4 is arranged on the upside of switching on and shutting down button 1-3.
Further, described power sensor 3 comprises power measurement resistance 3-1 and power measurement controller 3-2; Described power measurement resistance 3-1 is arranged on the left side of power sensor 3, and described power measurement controller 3-2 is arranged on the right side of power measurement resistance 3-1.
Further, described power measurement controller 3-2 comprises attaching plug 3-2-1, display screen 3-2-2, capacitance body 3-2-3; Described attaching plug 3-2-1 is arranged on the right side of the lower end of power measurement controller 3-2, and described display screen 3-2-2 is arranged on the upper end of power measurement controller 3-2, and described capacitance body 3-2-3 is arranged on the lower end of display screen 3-2-2.
Further, described relay protector 6 comprises mutual inductor 6-1, discriminating unit 6-2, processor 6-3, switching winding 6-4; Described mutual inductor 6-1 is arranged on the front end of relay protector 6, and described discriminating unit 6-2 is arranged on the rear end of mutual inductor 6-1, and described processor 6-3 is arranged on the rear end of discriminating unit 6-2, and described switching winding 6-4 is arranged on the rear end of processor 6-3.
Further, described mutual inductor 6-1 specifically adopts De Lixi current transformer LMK3-0.66 2000/5 Φ 100.
Further, described capacitance body 3-2-3 specifically adopts high-quality electrochemical capacitor body 50V/4700uF, and specification is 22X40MM.
Further, described power supply 5 specifically adopts rechargeable type accumulator.
Further, power sensor adopts capacitance microwave power sensor, with GaAs or Si substrate for substrate, GaAs or Si substrate is provided with co-planar waveguide, the semi-girder that connection one is perpendicular with co-planar waveguide on co-planar waveguide ground wire, semi-girder is suspended on the top of co-planar waveguide, is provided with a sensing electrode in the below of semi-girder end; Cantilever depth of beam is 1 ~ 3 micron.
Further, the guard method of relay protector:
Obtain the voltage parameter of the protected power circuit provided by three voltage transformer (VT), voltage transformer (VT) is connected with protected power circuit respectively according to delta connection mode or star-star connection mode;
Obtain voltage parameter, when voltage transformer (VT) is connected with protected power circuit according to delta connection mode, the voltage parameter obtained is processed, make process after voltage parameter can be mutually compatible with the judgment mode of preset relay protection, adopt the judgment mode of preset relay protection to judge whether to need to carry out relay protection to protected power circuit according to the voltage parameter after process, preset relay protection judgment mode is that the voltage parameter provided according to the voltage transformer (VT) adopting Y-connection mode to be connected with protected power circuit designs;
When voltage transformer (VT) is connected with protected power circuit according to star-star connection mode, the judgment mode of preset relay protection is adopted to judge whether to need to carry out relay protection to protected power circuit according to the voltage parameter obtained;
When needs carry out relay protection to protected power circuit, the make-break operation of pilot relay unit;
When voltage transformer (VT) is connected with protected power circuit according to delta connection mode; judge that whether the judgment mode of preset relay protection is that zero sequence overcurrent protection judges; if so, then judgment mode be set to without exception because condition does not meet and cannot perform.
Principle of work
As shown in Figure 1,2,3, 4, computer power management control system mainly comprises central controller 1, economizes power controller 2, power sensor 3, server 4, power supply 5 and relay protector 6, described central controller 1 sets consumption upper current limit value by economizing power controller 2 pairs of power sensors 3, when the consumption electric current of server 4 has exceeded consumption upper current limit value, the signal transmission exported by power sensor 3 is to server 4, the operating frequency of described central controller 1 pair of server 4 controls, maximum average power is controlled to below consumed power higher limit, the consumed power of described power sensor 3 to the consumed power higher limit set by described province power controller 2 and measurement compares, when the consumed power measured has exceeded above-mentioned consumed power higher limit, look-at-me is exported to described server 4, described server 4 is when being transfused to above-mentioned look-at-me, province's power mode is switched to from normal mode, power sensor 3 is made up of power measurement resistance 3-1 and power measurement controller 3-2, server 4 can economize power controller 2 via management bus access in cabinet, economize power controller 2 carries out the upper current limit value to power measurement controller 3-2 setting via interior management bus, the releasing of the output of indicator signal is surmounted with the upper current limit value from power measurement controller 3-2, in addition, economize power controller 2 and also there is the function that output processor frequency reduces maintenance signal, and the function that indicator signal monitors is surmounted to upper current limit value, it is surmount the equal signal of indication letter with the upper current limit value from power measurement controller 3-2 from server 4 that processor frequencies reduces maintenance signal, the input side magnitude of voltage that power measurement controller 3-2 measures power measurement resistance 3-1 simultaneously and the current value flow through, when detecting that this current value exceedes the upper current limit value of setting, output current higher limit surmounts indicator signal, if input ring off signal from province's power controller 2 to power measurement central controller 1, then upper current limit value surmounts indicator signal and is removed.
The invention solves the problem usually clashed when the power of managing computer system based on OS and the non-power management techniques based on OS, the dynamic power management of computing machine can be realized, save the energy.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a computer power management control system, is characterized in that, this computer power management control system comprises central controller, economizes power controller, power sensor, server, power supply and relay protector; Economize power controller and connect central controller, power sensor connects economizes power controller, and server connects power sensor, power supply connection server, relay protector connection server;
Central controller also comprises: the non-transient computer-readable medium of processor and storing machine instructions, machine readable instructions comprises: query compiler device, identify in Structured Query Language (SQL) inquiry and each of multiple user-defined function is called, the multiple data partition of query compiler device identification, each data partition is associated with one of in multiple user-defined function and is identified from one of GROUP BY expression formula and OLAP window expression formula, one of to make in multiple data partition to be different from another data partition in described multiple data partition; And processing engine, run the part of multiple user-defined function as SQL query, one of to make in multiple user-defined function to consume the field that exported by another user-defined function in described multiple user-defined function as input;
Wherein each user-defined function has the metadata being exposed to query compiler device and processing engine, metadata indicate this user-defined function can one of in GROUP BY expression formula and OLAP expression formula in run.
2. computer power management control system as claimed in claim 1, it is characterized in that, central controller comprises interface insert row, electronic lock, switching on and shutting down button, supervisory keyboard; Interface insert row is arranged on the upper end, left side of central controller, and electronic lock is arranged on the lower end of interface insert row, and described switching on and shutting down button is arranged on the right side of electronic lock, and described supervisory keyboard is arranged on the upside of switching on and shutting down button.
3. computer power management control system as claimed in claim 1, it is characterized in that, power sensor comprises power measurement resistance and power measurement controller; Power measurement resistance is arranged on the left side of power sensor, and power measurement controller is arranged on the right side of power measurement resistance;
Power measurement controller comprises attaching plug, display screen, capacitance body; Attaching plug is arranged on the right side of the lower end of power measurement controller, and display screen is arranged on the upper end of power measurement controller, and capacitance body is arranged on the lower end of display screen.
4. computer power management control system as claimed in claim 1, it is characterized in that, relay protector comprises mutual inductor, discriminating unit, processor, switching winding; Mutual inductor is arranged on the front end of relay protector, and discriminating unit is arranged on the rear end of mutual inductor, and processor is arranged on the rear end of discriminating unit, and switching winding is arranged on the rear end of processor;
Mutual inductor specifically adopts De Lixi current transformer LMK3-0.662000/5 Φ 100;
Capacitance body specifically adopts high-quality electrochemical capacitor body 50V/4700uF, and specification is 22X40MM.
5. computer power management control system as claimed in claim 1, it is characterized in that, power supply specifically adopts rechargeable type accumulator.
6. computer power management control system as claimed in claim 1, it is characterized in that, power sensor adopts capacitance microwave power sensor, with GaAs or Si substrate for substrate, GaAs or Si substrate is provided with co-planar waveguide, the semi-girder that connection one is perpendicular with co-planar waveguide on co-planar waveguide ground wire, semi-girder is suspended on the top of co-planar waveguide, is provided with a sensing electrode in the below of semi-girder end; Cantilever depth of beam is 1 ~ 3 micron.
7. computer power management control system as claimed in claim 1, is characterized in that, the guard method of relay protector:
Obtain the voltage parameter of the protected power circuit provided by three voltage transformer (VT), voltage transformer (VT) is connected with protected power circuit respectively according to delta connection mode or star-star connection mode;
Obtain voltage parameter, when voltage transformer (VT) is connected with protected power circuit according to delta connection mode, the voltage parameter obtained is processed, make process after voltage parameter can be mutually compatible with the judgment mode of preset relay protection, adopt the judgment mode of preset relay protection to judge whether to need to carry out relay protection to protected power circuit according to the voltage parameter after process, preset relay protection judgment mode is that the voltage parameter provided according to the voltage transformer (VT) adopting Y-connection mode to be connected with protected power circuit designs;
When voltage transformer (VT) is connected with protected power circuit according to star-star connection mode, the judgment mode of preset relay protection is adopted to judge whether to need to carry out relay protection to protected power circuit according to the voltage parameter obtained;
When needs carry out relay protection to protected power circuit, the make-break operation of pilot relay unit;
When voltage transformer (VT) is connected with protected power circuit according to delta connection mode; judge that whether the judgment mode of preset relay protection is that zero sequence overcurrent protection judges; if so, then judgment mode be set to without exception because condition does not meet and cannot perform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410843938.XA CN104635910A (en) | 2014-12-30 | 2014-12-30 | Power management control system for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410843938.XA CN104635910A (en) | 2014-12-30 | 2014-12-30 | Power management control system for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104635910A true CN104635910A (en) | 2015-05-20 |
Family
ID=53214762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410843938.XA Pending CN104635910A (en) | 2014-12-30 | 2014-12-30 | Power management control system for computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104635910A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105302224A (en) * | 2015-12-04 | 2016-02-03 | 山东省林业科学研究院 | Power management control system for forestry machine |
| CN111095160A (en) * | 2017-09-28 | 2020-05-01 | 英特尔公司 | Idle Power State Determination |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2503653Y (en) * | 2001-08-22 | 2002-07-31 | 孟付元 | Universal overcurrent relay protecter |
| CN1858601A (en) * | 2006-06-09 | 2006-11-08 | 东南大学 | Capacitance microwave power sensor |
| CN201637791U (en) * | 2009-12-31 | 2010-11-17 | 张振旗 | High Voltage Shunt Capacitor Online Monitoring System |
| US8019929B2 (en) * | 2006-09-13 | 2011-09-13 | Rohm Co., Ltd. | Data processing apparatus and data control circuit for use therein |
| CN102317886A (en) * | 2009-03-05 | 2012-01-11 | 株式会社日立制作所 | Computer and power management system for computer |
| CN103262076A (en) * | 2011-01-25 | 2013-08-21 | 惠普发展公司，有限责任合伙企业 | Analytical data processing |
| CN203774756U (en) * | 2013-12-23 | 2014-08-13 | 红河学院 | On-line monitoring protection device for relay protection of high voltage equipment |
-
2014
- 2014-12-30 CN CN201410843938.XA patent/CN104635910A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2503653Y (en) * | 2001-08-22 | 2002-07-31 | 孟付元 | Universal overcurrent relay protecter |
| CN1858601A (en) * | 2006-06-09 | 2006-11-08 | 东南大学 | Capacitance microwave power sensor |
| US8019929B2 (en) * | 2006-09-13 | 2011-09-13 | Rohm Co., Ltd. | Data processing apparatus and data control circuit for use therein |
| CN102317886A (en) * | 2009-03-05 | 2012-01-11 | 株式会社日立制作所 | Computer and power management system for computer |
| CN201637791U (en) * | 2009-12-31 | 2010-11-17 | 张振旗 | High Voltage Shunt Capacitor Online Monitoring System |
| CN103262076A (en) * | 2011-01-25 | 2013-08-21 | 惠普发展公司，有限责任合伙企业 | Analytical data processing |
| CN203774756U (en) * | 2013-12-23 | 2014-08-13 | 红河学院 | On-line monitoring protection device for relay protection of high voltage equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105302224A (en) * | 2015-12-04 | 2016-02-03 | 山东省林业科学研究院 | Power management control system for forestry machine |
| CN111095160A (en) * | 2017-09-28 | 2020-05-01 | 英特尔公司 | Idle Power State Determination |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101622612B (en) | Detecting connection to a usb host or hub without using an extra status input | |
| TWI497272B (en) | Usb hub for supplying power and method thereof | |
| CN108819884A (en) | A kind of car networking terminal supplying power control method | |
| CN105305596B (en) | A kind of mains-supplied method and apparatus | |
| CN109992085A (en) | A kind of computer electric power management system, method and terminating machine | |
| CN103294159B (en) | A kind of method and apparatus realizing electronic device shutdown zero power consumption | |
| CN104750226B (en) | USB OTG mode identification system and method | |
| CN104635910A (en) | Power management control system for computer | |
| CN202663130U (en) | Power supply cabinet | |
| CN201707675U (en) | Computer isolation card | |
| WO2016180241A1 (en) | Energy-conservation management method and apparatus for terminal and terminal | |
| CN102662454B (en) | A kind of method for designing of the finite state machine based on Godson 3A notebook EC power management | |
| CN105006885A (en) | Independently-controlled earth leakage protection project management service system | |
| CN113741634A (en) | State control method based on wearable device and wearable device | |
| CN204945916U (en) | A kind of I/O expands module | |
| CN102073367B (en) | Power Management Devices for PXIe Embedded System Controllers | |
| CN205450962U (en) | Energy -conserving computery | |
| CN108959040A (en) | A kind of main frame heat dissipation monitor and alarm system | |
| US11916471B2 (en) | Power supply switching from power sources | |
| CN210721358U (en) | Vbus power supply automatic switching circuit of OTG equipment | |
| CN203149568U (en) | USB switching sharer | |
| CN208335133U (en) | A kind of power-fail detection circuit and computer | |
| CN202837876U (en) | Equipment cabinet cascading controlling host machine | |
| CN106527663B (en) | A kind of communication equipment and its method for managing power supply | |
| CN205882833U (en) | Intelligence power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150520 |