CN201628921U - Power supply unit - Google Patents
Power supply unit Download PDFInfo
- Publication number
- CN201628921U CN201628921U CN2009202118943U CN200920211894U CN201628921U CN 201628921 U CN201628921 U CN 201628921U CN 2009202118943 U CN2009202118943 U CN 2009202118943U CN 200920211894 U CN200920211894 U CN 200920211894U CN 201628921 U CN201628921 U CN 201628921U
- Authority
- CN
- China
- Prior art keywords
- laptop
- switch element
- switch unit
- control module
- video graphics
- 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
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Abstract
A power supply unit is used for supplying power to laptops with video graphics array ports and comprises a first switch unit, a second switch unit, a main power source, a standby power source and a control unit, wherein the main power source is electrically connected with a laptop via the first switch unit, the standby power source is provided with a second video graphics array port, the second video graphics array port is electrically connected to a first video graphics array port of the laptop via the second switch unit, and the control unit is electrically connected to the first switch unit and the second switch unit and switches the first switch unit and the second switch unit according to power quantity of the main power source. By aid of matching of the first switch unit, the second switch unit and the control unit, the standby power source can supply power to the laptop when the power quantity of the main power source of the laptop is insufficient, thereby completing replacement between the main power source and the standby power source on the premise of keeping the laptop power on.
Description
Technical field
The utility model relates to a kind of electric supply installation, more detailed it, relate to a kind of electric supply installation that is used for laptop power supply with Video Graphics Array (VGA, Video Graphics Array) port.
Background technology
Use laptop when going out, for example take the vehicles, often can't find charge power supply, therefore the power supply of the rechargeable battery of laptop outfit can't reach additional, even the user carries standby rechargeable battery in addition to prolong laptop service time, but when changing rechargeable battery, still need close laptop earlier, replace with standby rechargeable battery again and restart laptop.Because of the tasks interrupt that rechargeable battery causes the current execution of laptop is changed in the need shutdown, the inconvenience that causes laptop to use.
Therefore, how to propose a kind of new laptop power supply technique,, become the problem that present industry is demanded urgently overcoming in fact to overcome the many disadvantages of background technology.
Summary of the invention
In view of the shortcoming of above-mentioned prior art, a purpose of the present utility model is to provide a kind of electric supply installation of laptop, and it is able to finish the switch of laptop power supply under the state that laptop does not shut down.
For reaching above-mentioned and other purpose, the utility model provides a kind of electric supply installation, is used for having the laptop power supply of the first Video Graphics Array port, and this device comprises: first switch element; The second switch unit; Primary power is electrically connected to this laptop by this first switch element; Standby power supply has the second Video Graphics Array port, and this second Video Graphics Array port is electrically connected to the first Video Graphics Array port of this laptop by this second switch unit; And control module, electrically connect this first, second switch element, according to the electric weight of this primary power this first, second switch element is carried out switching controls by this control module; Wherein, when the electric weight of this primary power is sufficient, this control module makes this first switch element closure, this second switch unit disconnect, this laptop is powered by this primary power, when the electric weight of this primary power is not enough, this control module makes this second switch unit closure, this first switch element disconnect, by this standby power supply this laptop is powered.
In an embodiment of the present utility model, this first, second switch element is a MOS transistor, and wherein, this control module electrically connects the grid of this first, second switch element respectively, with disconnection and the closure of controlling this first, second switch element.This control module is the IC control chip.
Than existing laptop power supply technique, the utility model passes through first, second switch element, reaches the cooperation of control module, and when the primary power electric weight of laptop is not enough, power to laptop by standby power supply, thereby by electric supply installation of the present utility model, can need not to close under the prerequisite of laptop, finish the replacing of primary power and standby power supply, thereby the laptop content that can when the primary power electric weight is not enough, not interrupt current execution, so can effectively solve the disadvantages of prior art.
Description of drawings
Fig. 1 is the basic framework block schematic diagram of the electric supply installation of laptop of the present utility model.
The main element symbol description
10 first switch elements
11 second switch unit
12 primary powers
13 standby power supplies
130 second Video Graphics Array ports
14 control modules
2 laptops
20 first Video Graphics Array ports
Embodiment
Below by specific instantiation embodiment of the present utility model is described, those skilled in the art can understand other advantages of the present utility model and effect easily by the content that this instructions disclosed.The utility model also can be implemented or be used by other different instantiations, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications and change under the spirit of the present utility model not deviating from.
Fig. 1 has shown the basic framework block schematic diagram of the electric supply installation of an embodiment of the present utility model.Electric supply installation in the present embodiment is in order to provide power supply to laptop 2, this laptop 2 has the first Video Graphics Array (VGA, Video Graphics Array) port 20, this first Video Graphics Array port 20 is in order to provide these laptop 2 images signals to external CRT or lcd screen.This electric supply installation comprises: first switch element 10, second switch unit 11, primary power 12, standby power supply 13, control module 14 below promptly are elaborated to electric supply installation of the present utility model.
In the present embodiment, this first, second switch element 10,11 is a MOS transistor, but not as limit, and the on-off element that still can select other for use as an alternative, for example above-mentioned MOS transistor also can be replaced by other intimate electronic components, for example can select field-effect transistor as an alternative.For making explanation of the present utility model more clear, in Fig. 1, be that MOS transistor is that example illustrates with first, second switch element 10,11.
This primary power 12 is electrically connected to this laptop 2 with to its power supply by this first switch element 10.In an embodiment of the present utility model, when these primary power 12 electric weight were sufficient, this first switch element 10 can be in closure state just can be stopped when these primary power 12 electric weight are not enough by 12 pairs of this laptop power supplies of this primary power.
This standby power supply 13 has second Video Graphics Array (VGA, Video GraphicsArray) port one 30, and this Video Graphics Array port one 30 is connected to the first Video Graphics Array port 20 of laptop 2 by this second switch unit 11.In an embodiment of the present utility model, when these primary power 12 electric weight are not enough, this first switch 10 is in off-state, this moment, this second switch 11 was in closure state, so be able to be returned to normal value and just can be stopped by powering electric weight up to this primary power 12 of 13 pairs of these laptops of this standby power supply.
This control module 14 electrically connects with this first, second switch element 10,11 respectively, thereby is able to transfer control signal to this first, second switch element 10,11, with disconnection and the closure of controlling this first, second switch element 10,11.More detailed it, this control module 14 electrically connects the grid of this first, second switch element 10,11 respectively, with the disconnection of controlling this first, second switch element 10,11 with closed.In an embodiment of the present utility model, this control module 14 is the IC control chip, and its signal according to the primary power 12 electric weight deficiencies that the laptop system is sent carries out switching controls to this first, second switch element 10,11, but not as limit.
When the electric weight of primary power 12 is sufficient, this control module 14 can't receive the signal of the primary power electric weight deficiency that the laptop system sends, therefore this first switch element 10 can be in closure state, and this second switch unit 11 can be in off-state, to be powered by 12 pairs of these laptops of this primary power 2.Otherwise, when the electric weight of this primary power 12 is not enough, the laptop system can send the signal of these primary power 12 electric weight deficiencies to this control module 14, this moment, this control module 14 can be ordered these second switch unit 11 closures, and order this first switch element 10 to disconnect, to return to normal value until the electric weight of this primary power 12 by 13 pairs of this laptop power supplies of this standby power supply.
In an embodiment of the present utility model, first, second switch element 10,11 in this electric supply installation, primary power 12, control module 14 all is arranged at the inside of this laptop, but not as limit.What need to specify is, graphic shown in about the circuit structure of electric supply installation of the present utility model and logical relation be for illustrating, but not in order to limit the category of electric supply installation of the present utility model.
Power supply technique than existing laptop, the utility model is by first, the second switch unit, and the cooperation between the control module, and when the primary power electric weight of laptop is not enough, power to laptop by standby power supply, thereby by electric supply installation of the present utility model, can need not to close under the prerequisite of laptop, finish the replacing of primary power and standby power supply, thereby the laptop content that can when the primary power electric weight is not enough, not interrupt current execution, can avoid need closing earlier in the prior art laptop and change the caused various shortcoming of power supply again.
The foregoing description is illustrative principle of the present utility model and effect thereof only, but not is used to limit the utility model.Any those skilled in the art all can be under spirit of the present utility model and category, and the foregoing description is modified and changed.Therefore, rights protection scope of the present utility model should be listed as claims scope.
Claims (5)
1. an electric supply installation is used for the laptop with first Video Graphics Array port is powered, and it is characterized in that this device comprises:
First switch element;
The second switch unit;
Primary power is electrically connected to this laptop by this first switch element;
Standby power supply has the second Video Graphics Array port, and this second Video Graphics Array port is electrically connected to the first Video Graphics Array port of this laptop by this second switch unit; And
Control module electrically connects this first, second switch element, according to the electric weight of this primary power this first, second switch element is carried out switching controls by this control module;
Wherein, when the electric weight of this primary power is sufficient, this control module makes this first switch element closure, this second switch unit disconnect, this laptop is powered by this primary power, when the electric weight of this primary power is not enough, this control module makes this second switch unit closure, this first switch element disconnect, by this standby power supply this laptop is powered.
2. electric supply installation according to claim 1 is characterized in that, this first switch element is a MOS transistor.
3. electric supply installation according to claim 1 is characterized in that, this second switch unit is a MOS transistor.
4. according to claim 2 or 3 described electric supply installations, it is characterized in that this control module electrically connects the grid of this first, second switch element respectively, with disconnection and the closure of controlling this first, second switch element.
5. electric supply installation according to claim 1 is characterized in that, this control module is the IC control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202118943U CN201628921U (en) | 2009-11-02 | 2009-11-02 | Power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202118943U CN201628921U (en) | 2009-11-02 | 2009-11-02 | Power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201628921U true CN201628921U (en) | 2010-11-10 |
Family
ID=43060317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202118943U Expired - Fee Related CN201628921U (en) | 2009-11-02 | 2009-11-02 | Power supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201628921U (en) |
-
2009
- 2009-11-02 CN CN2009202118943U patent/CN201628921U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20121102 |