CN104281248A - Voltage adapter - Google Patents
Voltage adapter Download PDFInfo
- Publication number
- CN104281248A CN104281248A CN201310268945.7A CN201310268945A CN104281248A CN 104281248 A CN104281248 A CN 104281248A CN 201310268945 A CN201310268945 A CN 201310268945A CN 104281248 A CN104281248 A CN 104281248A
- Authority
- CN
- China
- Prior art keywords
- supply path
- sensing element
- power supply
- module
- current sensing
- 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.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage
Abstract
The invention provides a voltage adapter. The voltage adapter comprises a first power supply route, a second power supply route, a switch control module and a judgment module. The first power supply route and the second power supply route are connected to a power supply output end. The first power supply route comprises a first power supply, a first current sensing element and a first switch element. The second power supply route comprises a second power supply, a second current sensing element and a second switch element. The judgment module can judge the load requirement of the power output end according to the magnitude of the current passing through the first current sensing element and the magnitude of the current passing through the second current sensing element so as to control the switch control module to be selectively connected with the first power supply route or the second power supply route. According to the voltage adapter, the magnitude of the output voltage can be intelligently adjusted according to the required load, and therefore the conduction loss generated when the current is transmitted from the voltage adapter to a working element is reduced.
Description
Technical field
The present invention relates to a kind of voltage adapter, refer to the voltage adapter that a kind of Intelligent adjustment voltage exports especially.
Background technology
Under electronic installation can be operated in multiple different mode, such as, a notebook computer can run when game, image rendering in high capacity, also can be in as idle states such as dormancy.Notebook computer is under different operational modes, and notebook computer has different power demands to power supply.Electric power outputting current in existing notebook computer is all consistent in what mode.Like this when electronic installation is in idle state, computer lower power consumption, power supply exports computer work element to, and as CPU, the conduction loss in the process of internal memory is larger.
Summary of the invention
In view of above content, be necessary to provide the voltage adapter that can export according to the duty Intelligent adjustment voltage of electronic installation.
A kind of voltage adapter, this voltage adapter comprises one first supply path, one second supply path, a switch control rule module and judge module, this first supply path and this second supply path are connected to a power output end respectively, this first supply path is the heavily loaded supply path exporting this power output end to, and this second supply path is the underloading supply path exporting this power output end to; This first supply path comprises one first power supply, one first current sensing element, one first on-off element; This second supply path comprises a second source, one second current sensing element, a second switch element; This first current sensing element is connected this judgement module respectively with this second current sensing element, this switch control rule module can control this first on-off element and this second switch element, this judgement module connects this switch control rule module, according to the size of current flowing through this first current sensing element and the size of current flowing through this second current sensing element, this judgement module can judge that the loading demand of this power output end connects this first supply path or this second supply path to control this switch control rule module selectivity.
In one embodiment, the output voltage of this first power supply is higher than the output voltage of this second source.
In one embodiment, the output voltage of this first power supply is 19V to 20V.
In one embodiment, the output voltage size of this second source is 6V.
In one embodiment, this first power supply comprises an interchange and turns DC circuit.
In one embodiment, this second source is a charge-discharge battery.
In one embodiment, this judgement module connects an electric quantity monitor and a charger respectively, and this electric quantity monitor monitors the state of charge of this second source, and this judgement module can control this charger and charge to this second source.
In one embodiment, this judgement module can judge when the electric current flowing through this first current sensing element is less than first current value, controls this switch control rule module and connects this second supply path.
In one embodiment, this judgement module can judge when the electric current flowing through this second current sensing element is greater than second current value, controls this switch control rule module and connects this first supply path.
In one embodiment, this first current value is greater than this second current value.
Compared with prior art, this voltage adapter can the size of load Intelligent adjustment output voltage according to demand, is transferred to conduction loss in operation element to reduce this power supply adaptor.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of a voltage adapter in an embodiment of the present invention.
Fig. 2 is functional block diagram when one first supply path is connected in Fig. 1.
Fig. 3 is functional block diagram when one second supply path is connected in Fig. 1.
Fig. 4 is the process flow diagram of a voltage adjusting method in an embodiment of the present invention.
Main element symbol description
| First supply path | 100 |
| First power supply | 101 |
| First current sensing element | 103 |
| First on-off element | 105 |
| Second supply path | 300 |
| Second source | 301 |
| Second current sensing element | 303 |
| Second switch element | 305 |
| Judge module | 500 |
| Electric quantity monitor | 600 |
| Charger | 700 |
| Switch control rule module | 800 |
| Power output end | 900 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, in an embodiment, a kind of voltage adapter comprises one first supply path 100,1 second supply path 300, and judges module 500, electric quantity monitor 600 and charger 700 and a switch control rule module 800.This first supply path 100 is connected to a power output end 900 respectively with this second supply path 300.In the present embodiment, this voltage adapter is the feed circuit of a notebook computer inside.
This first supply path 100 is for exporting the heavily loaded supply path of this power output end 900 to.When the electronic installation that this voltage adapter connects or electronic component have relatively high power demand, this first supply path 100 supplying power for outside.This first supply path 100 comprises one first power supply 101,1 first current sensing element 103, one first on-off element 105.This first power supply 101, this first current sensing element 103 and the first on-off element 105 and this power output end 900 are linked in sequence.This first power supply 101 comprise an interchange turn DC circuit can by access this voltage adapter alternating current be converted to direct current.In the present embodiment, the output voltage of this first power supply 101 is 19V to 20V.This first current sensing element 103 is an impedance.
This second supply path 300 is for exporting the underloading supply path of this power output end 900 to.When the electronic installation that this voltage adapter connects or electronic component have smaller power demand, this second supply path 300 supplying power for outside.This second supply path 300 comprises second source 301,1 second current sensing element 303, second switch element 305.This second source 301, this second current sensing element 303 and second switch element 305 and this power output end 900 are linked in sequence.This second source 301 is a charge-discharge battery.In the present embodiment, the output voltage size of this second source 301 is 6V.This switch control rule module 800 connects this electric quantity monitor 600 and this charger 700 respectively.This electric quantity monitor 600 can monitor the state of charge of this second source 301.This judgement module 500 can control this charger 700 and charge to this second source 301.This second current sensing element 303 is an impedance.
Refer to Fig. 2 and Fig. 3, this first current sensing element 103 is connected this judgement module 500 respectively with this second current sensing element.This switch control rule module 800 can control this first on-off element 105 and this second switch element 305.This judgement module 500 connects this switch control rule module 800.This judgement module 500 can judge the loading demand of this power output end 900 according to the size of current flowing through this first current sensing element 103 and the size of current flowing through this second current sensing element 303, this judgement module 500 can control this switch control rule module 800 selectivity according to loading demand and connect this first supply path 100 or this second supply path 300 like this.This judgement module 500 can judge when the electric current flowing through this first current sensing element 103 is less than first current value, controls this switch control rule module 800 and connects this second supply path 300.This judgement module 500 can judge when the electric current flowing through this second current sensing element 303 is greater than second current value, controls this switch control rule module 800 and connects this first supply path 100.This first current value is greater than this second current value.In the present embodiment, this first current value can be 0.5A, the desirable 0.1A-0.3A of this second current value.
Refer to Fig. 4, a kind of voltage adjusting method comprises the following steps:
Step S201: this judges that module 500 judges whether this first supply path 100 is connected, and then arrives step 203 in this way, as otherwise to step S205.
Step S203: this judges that module 500 judges whether the electric current flowing through this first current sensing element 103 is less than this first current value, arrives step S205 in this way, as otherwise get back to step S201;
Step S205, this judgement module 500 controls this switch control rule module 800 and connects this second supply path 300, meets the underloading demand of this power output end 900.
Step S207: this judges that module 500 judges whether the electric current flowing through this second current sensing element 303 is greater than this second current value, arrives step S209 in this way, returns step S201 as no.
Step S209, this judgement module 500 controls this switch control rule module 800 and connects this first supply path 100, meets the heavy duty requirements of this power output end 900.
Voltage adapter in present embodiment and this voltage adjusting method can switch the first supply path and the second supply path according to loading demand intelligence, thus regulation output voltage swing.Voltage adapter rear end connects some circuit systems (system IC buck circuit), these circuit systems can switch according to loading demand, this voltage adapter can coordinate this circuit system to carry out the output of Intelligent adjustment voltage, thus reduces the conduction loss of metal-oxide-semiconductor in this circuit system.
Claims (10)
1. a voltage adapter, it is characterized in that: this voltage adapter comprises one first supply path, one second supply path, a switch control rule module and judge module, this first supply path and this second supply path are connected to a power output end respectively, this first supply path is the heavily loaded supply path exporting this power output end to, and this second supply path is the underloading supply path exporting this power output end to; This first supply path comprises one first power supply, one first current sensing element, one first on-off element; This second supply path comprises a second source, one second current sensing element, a second switch element; This first current sensing element is connected this judgement module respectively with this second current sensing element, this switch control rule module can control this first on-off element and this second switch element, this judgement module connects this switch control rule module, according to the size of current flowing through this first current sensing element and the size of current flowing through this second current sensing element, this judgement module can judge that the loading demand of this power output end connects this first supply path or this second supply path to control this switch control rule module selectivity.
2. voltage adapter as claimed in claim 1, is characterized in that: the output voltage of this first power supply is higher than the output voltage of this second source.
3. voltage adapter as claimed in claim 2, is characterized in that: the output voltage of this first power supply is 19V to 20V.
4. voltage adapter as claimed in claim 2, is characterized in that: the output voltage size of this second source is 6V.
5. voltage adapter as claimed in claim 1, is characterized in that: this first power supply comprises an interchange and turns DC circuit.
6. voltage adapter as claimed in claim 1, is characterized in that: this second source is a charge-discharge battery.
7. voltage adapter as claimed in claim 6, it is characterized in that: this judgement module connects an electric quantity monitor and a charger respectively, this electric quantity monitor monitors the state of charge of this second source, and this judgement module can control this charger and charge to this second source.
8. voltage adapter as claimed in claim 1, is characterized in that: this judgement module can judge when the electric current flowing through this first current sensing element is less than first current value, controls this switch control rule module and connect this second supply path.
9. voltage adapter as claimed in claim 8, is characterized in that: this judgement module can judge when the electric current flowing through this second current sensing element is greater than second current value, controls this switch control rule module and connect this first supply path.
10. voltage adapter as claimed in claim 9, is characterized in that: this first current value is greater than this second current value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268945.7A CN104281248A (en) | 2013-07-01 | 2013-07-01 | Voltage adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310268945.7A CN104281248A (en) | 2013-07-01 | 2013-07-01 | Voltage adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104281248A true CN104281248A (en) | 2015-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310268945.7A Pending CN104281248A (en) | 2013-07-01 | 2013-07-01 | Voltage adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104281248A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253663A (en) * | 2016-09-08 | 2016-12-21 | 杰华特微电子（杭州）有限公司 | The control method of load current and control system |
| CN108874009A (en) * | 2018-07-25 | 2018-11-23 | 郑州云海信息技术有限公司 | A kind of method, controller and the system of dynamic adaptation load |
-
2013
- 2013-07-01 CN CN201310268945.7A patent/CN104281248A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253663A (en) * | 2016-09-08 | 2016-12-21 | 杰华特微电子（杭州）有限公司 | The control method of load current and control system |
| CN108874009A (en) * | 2018-07-25 | 2018-11-23 | 郑州云海信息技术有限公司 | A kind of method, controller and the system of dynamic adaptation load |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150114 |