CN201623513U - Electrical energy distributor circuit and mobile terminal - Google Patents
Electrical energy distributor circuit and mobile terminal Download PDFInfo
- Publication number
- CN201623513U CN201623513U CN2010201063630U CN201020106363U CN201623513U CN 201623513 U CN201623513 U CN 201623513U CN 2010201063630 U CN2010201063630 U CN 2010201063630U CN 201020106363 U CN201020106363 U CN 201020106363U CN 201623513 U CN201623513 U CN 201623513U
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- charger
- module
- output
- diode
- battery
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Abstract
The utility model is applicable to the technical field of electrical energy distribution, and provides an electrical energy distributor circuit and a mobile terminal. In the utility model, the electrical energy distributor circuit comprises a switching and shunting module for choosing and switching the electrical energy of a charger and the electrical energy stored in a battery to a function module, when the charger is connected with a power source terminal, the switching and shunting module switches the electrical energy of the charger to the function module, and the connection of the battery and the function module is cut off; and when the charger is not connected with the power source terminal, the switching and shunting module switches the electrical energy stored in the battery to the function module. Therefore, the battery avoids always being in a charge-discharge process, and the service life thereof is prolonged.
Description
Technical field
The utility model belongs to the technical field of power distribution, relates in particular to a kind of power distribution circuit and portable terminal.
Background technology
Along with development of science and technology, the function of existing portable terminal from strength to strength, the functional module in the portable terminal is also more and more, and is therefore reasonably particularly important for these functional modules distribution electric energy.
Fig. 1 shows the power distribution circuit of existing portable terminal, this circuit comprises charger 1, the charging module 2 that is connected with the output of charger 1, the battery 3 that is connected with the output of charging module 2, its course of work is: the electric energy of charger 1 output is through behind the charging module 2, be stored in the battery 3, give each functional module by battery 3 with power delivery again.Like this, battery 3 is in the charge and discharge process all the time, and can shorten its useful life.
The utility model content
The purpose of this utility model is to provide a kind of power distribution circuit, and there is short problem of life-span in the battery that is intended to solve in the existing power distribution circuit.
The utility model is achieved in that a kind of power distribution circuit, it comprise charger, the charging module that is connected with the output of charger, with the battery that the output of charging module is connected, described power distribution circuit also comprises:
Input connects the output and the battery of described charger respectively, and output connection function module selects to switch the switching diverter module of giving functional module with the electric energy of charger and the electric energy of battery storage.
In the said structure, described switching diverter module comprises unidirectional breakover element, switch element, bleeder circuit and energy-storage travelling wave tube;
The output of the input termination charger of described unidirectional breakover element, the output connection function module of described unidirectional breakover element, the input termination battery of described switch element, the output connection function module of described switch element, the 3rd end of the control termination bleeder circuit of described switch element, the output of the first termination charger of described bleeder circuit, the second end ground connection of described bleeder circuit, the output connection function module of described energy-storage travelling wave tube.
In the said structure, described unidirectional breakover element adopts first diode, and described switch element adopts field effect transistor, and described bleeder circuit adopts first resistance and second resistance of series connection, and described energy-storage travelling wave tube adopts electric capacity;
The anode of described first diode connects the output of charger, the negative electrode connection function module of described first diode, the drain electrode of described field effect transistor connects battery, the source electrode connection function module of described field effect transistor, the grid of described field effect transistor connects the public connecting end of first resistance and second resistance, the output of the first termination charger of described first resistance, the second end ground connection of described second resistance, the anodal connection function module of described electric capacity, the minus earth of described electric capacity.
In the said structure, described switching diverter module comprises second diode and the 3rd diode, the anode of described second diode connects the output of charger, the negative electrode connection function module of described second diode, the anode of described the 3rd diode connects battery, the negative electrode connection function module of described the 3rd diode.
In the said structure, described functional module comprises projection module.
Another purpose of the present utility model is to provide a kind of portable terminal, and it comprises functional module, and described portable terminal also comprises above-mentioned power distribution circuit.
In the said structure, described functional module comprises projection module.
In the utility model, the power distribution circuit comprises selects to switch the switching diverter module of giving functional module with the electric energy of the electric energy of charger and battery storage, like this when charger connects power end, the switching diverter module switches the electric energy of charger to functional module, and disconnect being connected of battery and functional module, when charger does not connect power end, the switching diverter module switches the electric energy of battery storage to functional module, battery just can not be in the charge and discharge process all the time like this, has prolonged its useful life.
Description of drawings
Fig. 1 is the structure chart of existing power distribution circuit;
Fig. 2 is the structure chart of the power distribution circuit that provides of the utility model embodiment;
Fig. 3 is the exemplary circuit figure of the power distribution circuit that provides of the utility model first embodiment;
Fig. 4 is the exemplary circuit figure of the power distribution circuit that provides of the utility model second embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 2 shows the structure of the power distribution circuit that the utility model embodiment provides.
The power distribution circuit comprises charger 100, the charging module 200 that is connected with the output of charger 100, the battery 300 that is connected with the output of charging module 200, the power distribution circuit also comprises switching diverter module 400, the input that switches diverter module 400 connects the output and the battery 200 of charger 100 respectively, switch the output connection function module of diverter module 400, the electric energy of charger 100 and the electric energy of battery 300 storages are selected to switch to functional module.
Portable terminal with the band projecting function is an example below, and the functional module of this portable terminal comprises projection module, and projection module connects the output that switches diverter module 400, and the functional module of this portable terminal also comprises communication module, and communication module connects battery.
Fig. 3 shows the exemplary circuit structure of the power distribution circuit that the utility model first embodiment provides.
As the utility model one embodiment, switch diverter module 400 and comprise unidirectional breakover element 401, switch element 402, bleeder circuit 403 and energy-storage travelling wave tube 404.
The output of the input termination charger 100 of unidirectional breakover element 401, the output termination projection module of unidirectional breakover element 401, the input termination battery of switch element 402, the output termination projection module of switch element 402, the 3rd end of the control termination bleeder circuit 403 of switch element 402, the output of the first termination charger of bleeder circuit 403, the second end ground connection of bleeder circuit 403, the output termination projection module of energy-storage travelling wave tube 404.
The anode of the first diode D1 connects the output of charger, the negative electrode of the first diode D1 connects projection module, the drain electrode of field effect transistor Q1 connects battery, the source electrode of field effect transistor Q1 connects projection module, the grid of field effect transistor Q1 connects the public connecting end of first resistance R 1 and second resistance R 2, the output of the first termination charger of first resistance R 1, the second end ground connection of second resistance R 2, the positive pole of capacitor C 1 connects projection module, the minus earth of capacitor C 1.
Its operation principle is:
When not inserting charger, the C point is floating empty, the E point to ground, presents the zero level state by second resistance R 2, after charger inserts, the voltage of charger output is by first resistance R 1 and second resistance R, 2 dividing potential drops, obtain the voltage that E is ordered,, make voltage that E orders greater than cell voltage by the resistance of reasonable configuration R1 and R2, less than charger voltage, i.e. 4.2V＜Ue＜5V.
When charger connected power end, the E point voltage was higher than the B point voltage, field effect transistor Q1 by, battery output is disconnected, the first diode D1 conducting simultaneously, the power supply of projection module switches to charger by battery.
When charger did not connect power end, the E point was by R2 ground connection, and the E point voltage is near zero level, field effect transistor Q1 conducting, the D point voltage will be higher than the A point voltage, the first diode D1 by, the power supply of projection module switches to battery by charger.
Switching moment, the power supply of projection module is provided by capacitor C 1.
Fig. 4 shows the exemplary circuit structure of the power distribution circuit that the utility model second embodiment provides.
Switch diverter module 400 and comprise the second diode D2 and the 3rd diode D3, the anode of the second diode D2 connects the output of charger, the negative electrode of the second diode D2 connects projection module, and the anode of the 3rd diode D3 connects battery, and the negative electrode of the 3rd diode D3 connects projection module.
Its operation principle is:
When charger connected power end, the second diode D2 conducting made the D point voltage will be higher than the B point voltage, the 3rd diode D3 by, the power supply of projection module is provided by charger;
When charger does not connect power end, the 3rd diode D3 conducting, the power supply of projection module is provided by battery.
The utility model embodiment also provides a kind of portable terminal, and it comprises functional module, also comprises above-mentioned power distribution circuit.
In the utility model embodiment, the power distribution circuit comprises selects to switch the switching diverter module of giving functional module with the electric energy of the electric energy of charger and battery storage, like this when charger connects power end, the switching diverter module switches the electric energy of charger to functional module, and disconnect being connected of battery and functional module, when charger does not connect power end, the switching diverter module switches the electric energy of battery storage to functional module, battery just can not be in the charge and discharge process all the time like this, has prolonged its useful life.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (7)
1. power distribution circuit, it comprise charger, the charging module that is connected with the output of charger, with the battery that the output of charging module is connected, it is characterized in that described power distribution circuit also comprises:
Input connects the output and the battery of described charger respectively, and output connection function module selects to switch the switching diverter module of giving functional module with the electric energy of charger and the electric energy of battery storage.
2. power distribution circuit as claimed in claim 1 is characterized in that, described switching diverter module comprises unidirectional breakover element, switch element, bleeder circuit and energy-storage travelling wave tube;
The output of the input termination charger of described unidirectional breakover element, the output connection function module of described unidirectional breakover element, the input termination battery of described switch element, the output connection function module of described switch element, the 3rd end of the control termination bleeder circuit of described switch element, the output of the first termination charger of described bleeder circuit, the second end ground connection of described bleeder circuit, the output connection function module of described energy-storage travelling wave tube.
3. power distribution circuit as claimed in claim 2, it is characterized in that described unidirectional breakover element adopts first diode, described switch element adopts field effect transistor, described bleeder circuit adopts first resistance and second resistance of series connection, and described energy-storage travelling wave tube adopts electric capacity;
The anode of described first diode connects the output of charger, the negative electrode connection function module of described first diode, the drain electrode of described field effect transistor connects battery, the source electrode connection function module of described field effect transistor, the grid of described field effect transistor connects the public connecting end of first resistance and second resistance, the output of the first termination charger of described first resistance, the second end ground connection of described second resistance, the anodal connection function module of described electric capacity, the minus earth of described electric capacity.
4. power distribution circuit as claimed in claim 1, it is characterized in that, described switching diverter module comprises second diode and the 3rd diode, the anode of described second diode connects the output of charger, the negative electrode connection function module of described second diode, the anode of described the 3rd diode connects battery, the negative electrode connection function module of described the 3rd diode.
5. power distribution circuit as claimed in claim 1 is characterized in that described functional module comprises projection module.
6. portable terminal, it comprises functional module, it is characterized in that, described portable terminal also comprises each described power distribution circuit as claim 1-5.
7. portable terminal as claimed in claim 6 is characterized in that described functional module comprises projection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201063630U CN201623513U (en) | 2010-01-28 | 2010-01-28 | Electrical energy distributor circuit and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201063630U CN201623513U (en) | 2010-01-28 | 2010-01-28 | Electrical energy distributor circuit and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201623513U true CN201623513U (en) | 2010-11-03 |
Family
ID=43026968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201063630U Expired - Lifetime CN201623513U (en) | 2010-01-28 | 2010-01-28 | Electrical energy distributor circuit and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201623513U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404135A (en) * | 2015-12-08 | 2016-03-16 | 青岛歌尔声学科技有限公司 | Real-time clock power supply circuit and method |
| CN106410550A (en) * | 2016-10-31 | 2017-02-15 | 乐视控股（北京）有限公司 | Charging data line and charging processing method |
-
2010
- 2010-01-28 CN CN2010201063630U patent/CN201623513U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105404135A (en) * | 2015-12-08 | 2016-03-16 | 青岛歌尔声学科技有限公司 | Real-time clock power supply circuit and method |
| CN106410550A (en) * | 2016-10-31 | 2017-02-15 | 乐视控股（北京）有限公司 | Charging data line and charging processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101103 |
|
| CX01 | Expiry of patent term |