CN203233186U - Charging circuit and communication terminal - Google Patents
Charging circuit and communication terminal Download PDFInfo
- Publication number
- CN203233186U CN203233186U CN2013200068683U CN201320006868U CN203233186U CN 203233186 U CN203233186 U CN 203233186U CN 2013200068683 U CN2013200068683 U CN 2013200068683U CN 201320006868 U CN201320006868 U CN 201320006868U CN 203233186 U CN203233186 U CN 203233186U
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- Prior art keywords
- charging
- application processor
- power supply
- charging circuit
- module
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The utility model embodiment provides a charging circuit and a communication terminal; the charging circuit comprises a low dropout regulator, an application processor and a charging module; an input terminal of the low dropout regulator is electrically connected with a power source; an output terminal of the low dropout regulator is electrically connected with the application processor; a first end of the charging module is electrically connected with the application processor; a second end of the charging module is electrically connected with the power source; and a third end of the charging module is electrically connected with a cell of the communication terminal. The charging circuit and the communication terminal are provided; the low dropout regulator is electrically connected between the power source and the application processor, so high-voltage overcharging of the application processor of the communication terminal is prevented, thereby employing a nanometer level precision technology chip to serve as the application processor of the communication terminal.
Description
Technical field
The utility model embodiment relates to the communication technology, relates in particular to a kind of charging circuit and communication terminal.
Background technology
Along with the continuous improvement of chip manufacturing process, industry can the nanoscale manufacturing process be made application processor or universal serial bus physical layer (Universal Serial BUS Physical layer is hereinafter to be referred as the USB PHY) module in the mobile phone.
In the chip of output, the circuit spacing of integrated circuit (Integrated Circuit is hereinafter to be referred as IC) inside is in nano-scale under the nanoscale manufacturing process.The chip of nano-precision technology has had that volume is little, integrated level is high concurrently and plurality of advantages such as low in energy consumption, but the chip of nano-precision technology is during as the application processor of mobile phone, and the proof voltage value often is no more than 5.25 volts.And in the prior art, between 5～7 volts, this charging input voltage can cause the high pressure overshoot as the chip of the nano-precision technology of the application processor of mobile phone to the cell-phone charging input voltage usually.
The utility model content
The utility model embodiment provides a kind of charging circuit and communication terminal.
First aspect, the utility model embodiment provides a kind of charging circuit, is applicable to communication terminal, comprising: low pressure difference linear voltage regulator (low dropout regulator is hereinafter to be referred as LDO), application processor and charging module; The input of described low pressure difference linear voltage regulator and power supply electrically connect; The output of described low pressure difference linear voltage regulator and described application processor electrically connect; First end of described charging module and described application processor electrically connect, and second end of described charging module and described power supply electrically connect, and the 3rd end of described charging module and the battery of communication terminal electrically connect.
In first kind of first aspect possible implementation, described low pressure difference linear voltage regulator, be used for receiving first signal of telecommunication of described power supply input, described first signal of telecommunication carried out voltage stabilizing handle acquisition second signal of telecommunication, export described second signal of telecommunication to described application processor; Described application processor is used for indicating described charging module that described battery is charged according to described second signal of telecommunication.
In second kind of first aspect possible implementation, described charging circuit also comprises: the universal serial bus physical layer module electrically connects with described low pressure difference linear voltage regulator and described application processor.
According to second kind of first aspect possible implementation, in the third possible implementation of first aspect, described universal serial bus physical layer module is used to described application processor that the charging type information is provided; Described application processor is used for indicating described charging module that described battery is charged according to described charging type information.
According to the third possible implementation of first aspect, in the 4th kind of possible implementation of first aspect, described universal serial bus physical layer module also is used for obtaining described charging type information according to universal serial bus signal.
According to the implementation of first aspect, in the 5th kind of possible implementation of first aspect, described charging circuit also comprises charging inlet; The input of described low pressure difference linear voltage regulator electrically connects by described charging inlet and described power supply; Described second end of described charging module electrically connects by described charging inlet and described power supply.
According to second kind of first aspect possible implementation, in the 6th kind of possible implementation of first aspect, described charging circuit comprises charging inlet, and the input of described low pressure difference linear voltage regulator electrically connects by described charging inlet and described power supply; Described second end of described charging module electrically connects by described charging inlet and described power supply, and described universal serial bus physical layer module and described charging inlet communicate to connect.
According to one of possible implementation of the first six kind of first aspect or first aspect, in the 7th kind of possible implementation of first aspect, first end of described charging module and described application processor electrically connect by internal integrated circuit (Inter-Integrated Circuit is hereinafter to be referred as I2C) bus.
According to one of possible implementation of the first seven kind of first aspect or first aspect, in the 8th kind of possible implementation of first aspect, described power supply is DC power supply.
Second aspect, the utility model embodiment provides a kind of communication terminal, comprising: as the described charging circuit of any possible implementation in the first aspect.
The charging circuit that the utility model embodiment provides and communication terminal, by between power supply and application processor, electrically connecting low pressure difference linear voltage regulator, avoid the high pressure overshoot of the application processor of communication terminal, thereby can adopt the chip of nano-precision technology as the application processor of communication terminal.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the charging circuit embodiment one that Fig. 1 provides for the utility model;
The structural representation of the charging circuit embodiment two that Fig. 2 provides for the utility model;
The structural representation of the charging circuit embodiment three that Fig. 3 provides for the utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
The structural representation of the charging circuit embodiment one that Fig. 1 provides for the utility model, as shown in Figure 1, the charging circuit 100 that present embodiment provides is applicable to multiple communication terminals such as mobile phone or portable computer, and charging circuit 100 can comprise: low pressure difference linear voltage regulator LDO110, application processor 120 and charging module 130; Particularly:
The input of LDO110 and power supply 102 electrically connect; The output of LDO110 and application processor 120 electrically connect; First end of charging module 130 and application processor 120 electrically connect, and second end of charging module 130 and power supply 102 electrically connect, and the 3rd end of charging module 130 and the battery of communication terminal 104 electrically connect.
LDO110 can be used for receiving first signal of telecommunication of power supply 102 inputs, first signal of telecommunication is carried out voltage stabilizing handle acquisition second signal of telecommunication, exports second signal of telecommunication to application processor 120; Application processor 120 can be used for charging according to 130 pairs of batteries 104 of second signal of telecommunication indication charging module.
Wherein, power supply 102 can be DC power supply, withstand voltage with application processor 120 is that 5V is example, after the input of LDO110 in the charging circuit 100 and power supply 102 electrically connect, if the transient voltage of first signal of telecommunication of power supply 102 input LDO110 surpasses 5V, then first signal of telecommunication obtains second signal of telecommunication after LDO110 carries out the voltage stabilizing processing, the magnitude of voltage that LDO110 exports second signal of telecommunication of application processor 120 to is not more than 5V, can not cause the high pressure overshoot of application processor 120.On the other hand, if the transient voltage of first signal of telecommunication of power supply 102 input LDO110 is less than 5V, because the pressure reduction (dropout) of LDO110 is about 100mV, the magnitude of voltage that LDO110 exports second signal of telecommunication of application processor 120 to reaches about 4.9V usually, can not surpass 5V so export the magnitude of voltage of second signal of telecommunication of application processor 120 to after LDO110 handles.
The charging circuit that the utility model embodiment provides, by between power supply and application processor, electrically connecting low pressure difference linear voltage regulator, avoid the high pressure overshoot of the application processor of communication terminal, thereby can adopt the chip of nano-precision technology as the application processor of communication terminal.
The structural representation of the charging circuit embodiment two that Fig. 2 provides for the utility model, as shown in Figure 2, the charging circuit 200 that present embodiment provides is equally applicable to multiple communication terminals such as mobile phone or portable computer, on the basis of charging circuit shown in Figure 1 100, charging circuit 200 can also comprise: universal serial bus physical layer USB PHY module 210, USB PHY module 210 electrically connects with LDO110 and application processor 120.
Particularly, all be that 5V is example with the withstand voltage of application processor 120 and USB PHY module 210, the LDO110 output voltage is not more than second signal of telecommunication of 5V to application processor 120 and USB PHY module 210.On the one hand, USB PHY module 210 is waken up, and judges the type of this charging operations, for example can judge the type of charger, and the type information notification application processor 120 that will charge.On the other hand, application processor 120 is waken up, and 130 pairs of batteries 104 of indication charging module charge, and according to the charging type information of knowing from USB PHY module 210,130 pairs of batteries of indication charging module 104 adopt different electric currents to charge.
The charging circuit that the utility model embodiment provides, by between power supply and application processor, electrically connecting low pressure difference linear voltage regulator, and between power supply and USB PHY module, electrically connect low pressure difference linear voltage regulator, avoid the application processor of communication terminal and the high pressure overshoot of USB PHY module, thereby can adopt the chip of nano-precision technology as the application processor USB PHY module of communication terminal.
The charging circuit that the utility model embodiment provides on Fig. 1 or basis embodiment illustrated in fig. 2, can also comprise: charging inlet, and the input of low pressure difference linear voltage regulator electrically connects by charging inlet and power supply; Second end of charging module electrically connects by charging inlet and power supply.
The structural representation of the charging circuit embodiment three that Fig. 3 provides for the utility model, as shown in Figure 3, the charging circuit 300 that present embodiment provides is equally applicable to multiple communication terminals such as mobile phone or portable computer, on the basis of charging circuit shown in Figure 2 200, charging circuit 300 can also comprise: charging inlet 310, and the input of LDO110 electrically connects by charging inlet 310 and power supply 102; Second end of charging module 130 electrically connects by charging inlet 310 and power supply 102.The type of the charging inlet 310 of the utility model embodiment does not limit.
Further, USB PHY module 210 in the charging circuit 300 can communicate to connect with charging inlet 310, USB PHY module 210 can be judged the type of charging operations according to the D+ that obtains from charging inlet 310 and D-signal, and the type information notification application processor 120 that will charge.
The charging circuit that the utility model embodiment provides, by between power supply and application processor, electrically connecting low pressure difference linear voltage regulator, and between power supply and USB PHY module, electrically connect low pressure difference linear voltage regulator, avoid the application processor of communication terminal and the high pressure overshoot of USB PHY module, thereby can adopt the chip of nano-precision technology as the application processor USB PHY module of communication terminal.
In addition, the utility model embodiment provides a kind of communication terminal, and this communication terminal can comprise the charging circuit in the arbitrary illustrated embodiment of Fig. 1～Fig. 3.
In sum, the charging circuit that the utility model embodiment provides and communication terminal, by between power supply and application processor, electrically connecting low pressure difference linear voltage regulator, and between power supply and USB PHY module, electrically connect low pressure difference linear voltage regulator, avoid the application processor of communication terminal and the high pressure overshoot of USB PHY module, thereby can adopt the chip of nano-precision technology as the application processor USB PHY module of communication terminal.
It should be noted that at last: above each embodiment is not intended to limit only in order to the technical solution of the utility model to be described; Although have been described in detail with reference to the utility model of aforementioned each embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a charging circuit is applicable to communication terminal, it is characterized in that, comprising: low pressure difference linear voltage regulator, application processor and charging module;
The input of described low pressure difference linear voltage regulator and power supply electrically connect;
The output of described low pressure difference linear voltage regulator and described application processor electrically connect;
First end of described charging module and described application processor electrically connect, and second end of described charging module and described power supply electrically connect, and the 3rd end of described charging module and the battery of communication terminal electrically connect.
2. charging circuit according to claim 1 is characterized in that,
Described low pressure difference linear voltage regulator is used for receiving first signal of telecommunication that described power supply is imported, and described first signal of telecommunication is carried out voltage stabilizing handle acquisition second signal of telecommunication, exports described second signal of telecommunication to described application processor;
Described application processor is used for indicating described charging module that described battery is charged according to described second signal of telecommunication.
3. charging circuit according to claim 1 is characterized in that, also comprises:
The universal serial bus physical layer module electrically connects with described low pressure difference linear voltage regulator and described application processor.
4. charging circuit according to claim 3 is characterized in that,
Described universal serial bus physical layer module is used to described application processor that the charging type information is provided;
Described application processor is used for indicating described charging module that described battery is charged according to described charging type information.
5. charging circuit according to claim 4 is characterized in that,
Described universal serial bus physical layer module also is used for obtaining described charging type information according to universal serial bus signal.
6. charging circuit according to claim 1 is characterized in that, also comprises charging inlet;
The input of described low pressure difference linear voltage regulator electrically connects by described charging inlet and described power supply;
Described second end of described charging module electrically connects by described charging inlet and described power supply.
7. charging circuit according to claim 3 is characterized in that, described charging circuit comprises charging inlet,
The input of described low pressure difference linear voltage regulator electrically connects by described charging inlet and described power supply;
Described second end of described charging module electrically connects by described charging inlet and described power supply,
Described universal serial bus physical layer module and described charging inlet communicate to connect.
8. according to each described charging circuit in the claim 1～7, it is characterized in that first end of described charging module and described application processor are by internal integrated circuit I
2The C bus electrically connects.
9. charging circuit according to claim 8 is characterized in that, described power supply is DC power supply.
10. a communication terminal is characterized in that, comprising: as each described charging circuit in the claim 1～9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200068683U CN203233186U (en) | 2013-01-07 | 2013-01-07 | Charging circuit and communication terminal |
| PCT/CN2013/090549 WO2014106441A1 (en) | 2013-01-07 | 2013-12-26 | Charging circuit, and communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200068683U CN203233186U (en) | 2013-01-07 | 2013-01-07 | Charging circuit and communication terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203233186U true CN203233186U (en) | 2013-10-09 |
Family
ID=49289290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200068683U Expired - Lifetime CN203233186U (en) | 2013-01-07 | 2013-01-07 | Charging circuit and communication terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203233186U (en) |
| WO (1) | WO2014106441A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014106441A1 (en) * | 2013-01-07 | 2014-07-10 | 华为终端有限公司 | Charging circuit, and communication terminal |
| CN106532875A (en) * | 2017-01-13 | 2017-03-22 | 广东欧珀移动通信有限公司 | Mobile terminal |
| WO2018010430A1 (en) * | 2016-07-13 | 2018-01-18 | 中兴通讯股份有限公司 | Control method, device, circuit, and data card |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100474868C (en) * | 2007-01-25 | 2009-04-01 | 凤凰微电子（中国）有限公司 | The handset supporting the novel smart card |
| CN101795014B (en) * | 2010-04-12 | 2014-02-05 | 中兴通讯股份有限公司 | Device and method for mobile terminal to supply power to external equipment |
| CN102290978B (en) * | 2011-08-04 | 2014-01-22 | 无锡中星微电子有限公司 | Power management system |
| CN203233186U (en) * | 2013-01-07 | 2013-10-09 | 华为终端有限公司 | Charging circuit and communication terminal |
-
2013
- 2013-01-07 CN CN2013200068683U patent/CN203233186U/en not_active Expired - Lifetime
- 2013-12-26 WO PCT/CN2013/090549 patent/WO2014106441A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014106441A1 (en) * | 2013-01-07 | 2014-07-10 | 华为终端有限公司 | Charging circuit, and communication terminal |
| WO2018010430A1 (en) * | 2016-07-13 | 2018-01-18 | 中兴通讯股份有限公司 | Control method, device, circuit, and data card |
| CN106532875A (en) * | 2017-01-13 | 2017-03-22 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN106532875B (en) * | 2017-01-13 | 2019-08-06 | Oppo广东移动通信有限公司 | Mobile terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014106441A1 (en) | 2014-07-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171030 Address after: Metro Songshan Lake high tech Industrial Development Zone, Guangdong Province, Dongguan City Road 523808 No. 2 South Factory (1) project B2 -5 production workshop Patentee after: Huawei terminal (Dongguan) Co.,Ltd. Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee before: HUAWEI DEVICE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee after: HUAWEI DEVICE Co.,Ltd. Address before: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: Huawei terminal (Dongguan) Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |