CN201146393Y - Automatic recognition circuit for charging power supply - Google Patents
Automatic recognition circuit for charging power supply Download PDFInfo
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- CN201146393Y CN201146393Y CNU2007203109073U CN200720310907U CN201146393Y CN 201146393 Y CN201146393 Y CN 201146393Y CN U2007203109073 U CNU2007203109073 U CN U2007203109073U CN 200720310907 U CN200720310907 U CN 200720310907U CN 201146393 Y CN201146393 Y CN 201146393Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides an automatic identification circuit of a charging power supply, comprising an interface unit, a voltage regulation unit, a switch unit, a protection unit and a charging chip, wherein, one end of the voltage regulating unit is connected with the interface unit, and the other end is connected with the charging chip by the protection unit. The circuit further comprises the switch unit which is respectively connected with the protection unit and the interface unit. The automatic identification circuit can automatically select a priority circuit, thus reducing the mutual interference generated during the simultaneous working of various electronic products.
Description
Technical field
The utility model relates to the charge power supply circuit, particularly a kind of Charging Power Automatic Identification Circuit that possesses distinct interface.
Background technology
Charge power supply of the prior art generally only is provided with a kind of interface, be used for needed product is charged, but extensive use along with power supply, its function is also constantly being expanded, charge power supply also is provided with the difference in functionality interface, as be used for the USB interface of circumscribed USB, when the equipment of the external difference in functionality of identical product, when if a plurality of interface external equipments are worked simultaneously, disturb owing to can produce between the electronic product, thereby influence the electronic product operate as normal, even can damage electronic product, therefore at similar mobile phone, in the electronic products such as MP3, just must take control measures to charger interface and USB interface for reducing this interference.Prior art increases a lot of interference protection measures in design Related product process, as increasing shielding etc., though can reach certain effect, can increase a plurality of external interface equipment costs, causes the device resource waste.
The utility model content
The utility model provides a kind of Charging Power Automatic Identification Circuit, and one of its purpose is to solve to select the charge power supply priority task automatically when multiple external equipment, thus the phase mutual interference that produces when reducing multiple electronic product and working simultaneously.
In order to address the above problem; the utility model provides a kind of Charging Power Automatic Identification Circuit; comprise interface unit, voltage regulation unit, protected location and charging chip; wherein voltage regulation unit one end is connected with interface unit; the other end is connected with charging chip by protected location; described Charging Power Automatic Identification Circuit also comprises a switch element, is used for the control interface unit, and this switch element is connected between protected location and the interface unit.Described interface unit is used to provide the different operating interface, and external equipment is comprising at least one charger interface; Described voltage regulation unit is used to provide the switch element stable operating voltage, and wherein operating voltage is provided by external equipment; Described switch element is used for control interface cell conduction or disconnection, selects the work of charging external equipment device automatically; Described protected location is used to protect charging chip; Described charging chip is used for Charge Management.Described voltage regulation unit one end is connected with interface unit, and the other end is connected with charging chip by protected location, and switch element is also arranged between protected location and the interface unit in succession.
Preferably, described interface unit comprises a USB (Universal Serial Bus USB) interface and a charger interface, and wherein charger interface is used for the external charge device, and USB interface is used for circumscribed USB and carries out transfer of data.
Preferably, described voltage regulation unit comprises two voltage stabilizing didoes, two voltage-stabiliser tubes, one end ground connection, and the other end is linkage unit charger interface and USB interface respectively.
Preferably, described switch element comprises triode and two metal-oxide-semiconductors, and this metal-oxide-semiconductor is a low pressure pressure drop type metal-oxide-semiconductor.
Preferably, described protected location comprises diode, and two diode one ends are connected with charging chip, and the other end is connected with charger interface with metal-oxide-semiconductor respectively.
The utility model provides a kind of Charging Power Automatic Identification Circuit, on the electronic product that is provided with a plurality of interfaces and band charge power supply, during simultaneously external distinct device, automatically select wherein charger priority task, thereby the phase mutual interference that produces when reducing multiple electronic product and working simultaneously, influence electronic product performance and useful life, can improve charge power supply hardware utilance simultaneously, effectively reduce equipment cost.
Description of drawings
Fig. 1 is the utility model embodiment theory diagram;
Fig. 2 is the utility model first embodiment circuit diagram;
Fig. 3 is the schematic equivalent circuit that the utility model first embodiment charger and USB insert;
Fig. 4 is the schematic equivalent circuit of the utility model first embodiment when only inserting USB;
Fig. 5 is the utility model second embodiment circuit diagram;
Fig. 6 is the schematic equivalent circuit of the utility model second embodiment when only inserting USB.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
With reference to Fig. 1, Charging Power Automatic Identification Circuit for utility model first embodiment, comprise interface unit 11, voltage regulation unit 12, protected location 14 and charging chip 15, wherein interface unit 11 is connected with charger with USB in the external equipment 16, and realizes selecting working interface conducting or disconnection; Voltage regulation unit 12 is used to provide switch element 13 stable operating voltages, and wherein operating voltage is provided by external equipment 16; Switch element 13 is used for the conducting or the disconnection of control interface unit 11 1 working interfaces, thereby selects 16 pairs of the utility model chargings of external equipment work automatically; Protected location 14 is used to protect charging chip 15; Charging chip 15 is used for Charge Management.
Described Charging Power Automatic Identification Circuit also comprises a switch element 13, wherein opens unit 12 and is connected between protected location 14 and the interface unit 11.
Described interface unit 11 provides a plurality of interfaces; be connected with a plurality of external equipments 16 respectively; wherein interface unit 11 comprises a charger interface and a USB interface; be used for connecting the USB and the charger of external equipment 16; charging chip 15 is realized external equipment 16 is carried out Charge Management by a plurality of interfaces of protected location 14, switch element 13 and interface unit 11; protected location is used to protect charging chip 15; thereby the conducting or the disconnection of switch element 13 control interface unit 11 control interfaces, voltage regulation unit 12 is connected with protected location 14 with interface unit 11 respectively.
As shown in Figure 2, interface unit 11 comprises USB interface and charger interface, and wherein charger interface is the charging of external charge device, and USB interface is a circumscribed USB; Switch element 13 comprises triode Q1, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3, wherein triode Q1 is used to control charger interface conducting or disconnection, and metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3 work, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3 are low pressure drop type metal-oxide-semiconductor, are used to control USB interface conducting or disconnection; Voltage regulation unit 12 comprises voltage-stabiliser tube DV1, voltage-stabiliser tube DV2, and wherein voltage-stabiliser tube DV1 provides operating voltage for the triode Q1 base stage in the switch element 13, and DV2 provides operating voltage for metal-oxide-semiconductor Q2 drain electrode; Protected location 14 comprises that diode D1, diode D2 are used to protect charging chip 15, protection charging chip 15 when wherein diode D1 is used for charger interface work, protection charging chip 15 when diode D2 is used for USB interface work.
The base stage of triode Q1 in the switch element 13 is connected with charger interface, the collector electrode of triode Q1 is connected with the grid of metal-oxide-semiconductor Q2 and the source electrode of metal-oxide-semiconductor Q3 respectively, the grid of metal-oxide-semiconductor Q3 is connected with the source grid of metal-oxide-semiconductor Q2, and wherein the grid of metal-oxide-semiconductor Q2 also is connected with USB interface; Voltage stabilizing didoe DV1 one end in the voltage regulation unit 12 is connected with the drain electrode of metal-oxide-semiconductor Q2, the other end is connected with the base stage of triode Q1, voltage stabilizing didoe DV2 one end is connected with the drain electrode of metal-oxide-semiconductor Q2, and the other end is connected with the grid of metal-oxide-semiconductor Q2, and the drain electrode of metal-oxide-semiconductor Q2 also is connected with ground; Diode D1 in the protected location 14 is connected between the base stage of charging chip 15 and triode Q1, and diode D2 is connected between the drain electrode of charging chip 15 and metal-oxide-semiconductor Q3.
The operation principle of present embodiment is: after the charger interface in the interface unit 11 and USB interface insert charger and USB respectively, because charger cut-in operation, the current potential that triode Q1 base stage A in the switch element 13 is ordered is drawn high, the triode Q1 conducting work of charger interface end, and the current potential that the drain electrode B of metal-oxide-semiconductor Q2 is ordered drags down, make metal-oxide-semiconductor Q2 end, thereby cause metal-oxide-semiconductor Q3 also to end, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 quits work, therefore USB interface can not conducting work, its equivalent electric circuit as shown in Figure 3, this moment, the present embodiment circuit equivalent was that charger passes through to be connected with charging chip 15 after the diode D1 conducting, charger has charger interface and USB interface by 15 pairs of charging chips, and needs to use the electronic product of rechargeable battery to charge.
When interface unit 11 has only charger interface to insert charger, its equivalent electric circuit as shown in Figure 3, the current potential that triode Q1 base stage A in the switch element 13 is ordered is drawn high, the triode Q1 conducting work of charger interface end, and the current potential that the grid B of metal-oxide-semiconductor Q2 is ordered drags down, make metal-oxide-semiconductor Q2 end, thereby cause metal-oxide-semiconductor Q3 also to end, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2 quits work, therefore USB interface can not conducting, and charger is by being connected with charging chip 15 after the diode D1 conducting, and charger can charge by the electronic product that 15 pairs of charging chips are provided with a plurality of interface band charge power supplies.
When interface unit 11 has only USB interface to insert USB, because the current potential that B is ordered is drawn high, metal-oxide-semiconductor Q2, metal-oxide-semiconductor Q3 conducting work at this moment, triode Q1 carries and ends, quit work, USB is connected conducting with diode D2 with charging chip 15 by metal-oxide-semiconductor Q2, the metal-oxide-semiconductor Q3 of conducting, and USB can be by 15 pairs of described electronic product chargings of charging chip, and equivalent electric circuit as shown in Figure 4 at this moment.
Second embodiment is proposed on the basis of first embodiment; as shown in Figure 5; compare with the first embodiment circuit; can be with the metal-oxide-semiconductor Q2 in the switch element 13; metal-oxide-semiconductor Q3 replaces with two triodes; wherein the base stage of triode Q2 is connected with USB interface with voltage stabilizing didoe DV2 one end and is connected; the collector electrode of triode Q2 is connected with an end of voltage stabilizing didoe DV2 ground connection; the emitter of triode Q2 is connected with the base stage of triode Q3; the emitter of triode Q3 is connected with the collector electrode of triode Q1 and the base stage of triode Q2 respectively; the collector electrode of triode Q3 is connected with diode D2 in the protected location 14, and other circuit are constant.
The operation principle of present embodiment is: when the charger interface in the charhing unit 11 and USB interface insert charger and USB respectively, because charger cut-in operation, the current potential that triode Q1 base stage A in the switch element 13 is ordered is drawn high, the triode Q1 conducting work of charger interface end, and the current potential that the base stage B of triode Q2 is ordered drags down, make triode Q2 end, thereby cause triode Q3 also to end, triode Q1, triode Q2 quits work, therefore USB interface can not conducting work, its equivalent electric circuit as shown in Figure 3, this moment, the present embodiment circuit equivalent was that charger passes through to be connected with charging chip 15 after the diode D1 conducting, charger has charger interface and USB interface by 15 pairs of charging chips, and needs to use the electronic product of rechargeable battery to charge;
When interface unit 11 has only charger interface to insert charger, its equivalent electric circuit as shown in Figure 3, the current potential that the base stage A of triode Q1 in the switch element 13 is ordered is drawn high, the triode Q1 conducting work of charger interface end, and the current potential that the base stage B of triode Q2 is ordered drags down, make triode Q2 end, thereby cause triode Q3 also to end, triode Q1, triode Q2 quits work, therefore USB interface can not conducting, and charger is by being connected with charging chip 15 after the diode D1 conducting, and charger can charge by the electronic product that 15 pairs of charging chips are provided with a plurality of interface band charge power supplies.
When interface unit 11 has only USB interface to insert USB, because the current potential that B is ordered is drawn high, triode Q2, triode Q3 conducting work at this moment, triode Q1 carries and ends, USB is connected conducting with diode D2 with charging chip 15 by triode Q2, the Q3 of conducting, USB can be by 15 pairs of described electronic product chargings of charging chip, and charging chip 15 can adopt BQ24070.Equivalent electric circuit as shown in Figure 6 at this moment.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (7)
1. Charging Power Automatic Identification Circuit; comprise interface unit, voltage regulation unit, protected location and charging chip; wherein voltage regulation unit one end is connected with interface unit; the other end is connected with charging chip by protected location; it is characterized in that; described Charging Power Automatic Identification Circuit also comprises a switch element, is used for the control interface unit, and this switch element is connected between protected location and the interface unit.
2. Charging Power Automatic Identification Circuit according to claim 1 is characterized in that, described interface unit comprises a charger interface and a USB interface.
3. Charging Power Automatic Identification Circuit according to claim 1 is characterized in that, described switch element comprises triode or/and metal-oxide-semiconductor.
4. Charging Power Automatic Identification Circuit according to claim 3 is characterized in that, described switch element triode is connected with charger interface, triode or/and metal-oxide-semiconductor be connected with USB interface.
5. Charging Power Automatic Identification Circuit according to claim 3 is characterized in that, described metal-oxide-semiconductor is a low pressure pressure drop type metal-oxide-semiconductor, is used to control USB interface conducting or disconnection.
6. Charging Power Automatic Identification Circuit according to claim 1 is characterized in that described voltage regulation unit comprises two voltage-stabiliser tubes, two voltage-stabiliser tubes, one end ground connection, and the other end is linkage unit charger interface and USB interface respectively.
7. Charging Power Automatic Identification Circuit according to claim 1 is characterized in that, described protected location comprises two diodes, and two diode one ends are connected with charging chip, and the other end is connected with charger interface with metal-oxide-semiconductor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203109073U CN201146393Y (en) | 2007-12-14 | 2007-12-14 | Automatic recognition circuit for charging power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203109073U CN201146393Y (en) | 2007-12-14 | 2007-12-14 | Automatic recognition circuit for charging power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201146393Y true CN201146393Y (en) | 2008-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007203109073U Expired - Fee Related CN201146393Y (en) | 2007-12-14 | 2007-12-14 | Automatic recognition circuit for charging power supply |
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| CN (1) | CN201146393Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142705A (en) * | 2011-04-11 | 2011-08-03 | 杨福如 | Charging circuit of lithium iron phosphate charging battery |
| WO2012159427A1 (en) * | 2011-05-20 | 2012-11-29 | 中兴通讯股份有限公司 | Internet device, and automatic switching method, apparatus and circuit for charging interface thereof |
| CN103972931A (en) * | 2013-01-25 | 2014-08-06 | 万国半导体(开曼)股份有限公司 | Input line selector for battery charger |
| CN103986214A (en) * | 2014-05-30 | 2014-08-13 | 苏州天鸣信息科技有限公司 | Mobile terminal controlling charging state through lock and system thereof |
| CN104065125A (en) * | 2014-06-28 | 2014-09-24 | 青岛歌尔声学科技有限公司 | Electronic product charging system |
| CN105515137A (en) * | 2016-02-22 | 2016-04-20 | 天津市天楚科技有限公司 | Mobile power source having charge management function |
| CN105515103A (en) * | 2015-12-23 | 2016-04-20 | 深圳市中孚能电气设备有限公司 | Miner's lamp, charging circuit and charging method of miner's lamp |
| CN106602663A (en) * | 2017-01-05 | 2017-04-26 | 捷开通讯(深圳)有限公司 | Combined intelligent device charging and mutual charging device and charging method |
| CN108536627A (en) * | 2018-03-30 | 2018-09-14 | 联想(北京)有限公司 | The control method and electronic equipment of electronic equipment |
| WO2019100300A1 (en) * | 2017-11-23 | 2019-05-31 | 深圳市柔宇科技有限公司 | Charging circuit and electronic device |
| CN110970970A (en) * | 2015-03-27 | 2020-04-07 | 青岛海信移动通信技术股份有限公司 | Processing method and device of terminal charger |
-
2007
- 2007-12-14 CN CNU2007203109073U patent/CN201146393Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142705A (en) * | 2011-04-11 | 2011-08-03 | 杨福如 | Charging circuit of lithium iron phosphate charging battery |
| WO2012159427A1 (en) * | 2011-05-20 | 2012-11-29 | 中兴通讯股份有限公司 | Internet device, and automatic switching method, apparatus and circuit for charging interface thereof |
| US9812882B2 (en) | 2011-05-20 | 2017-11-07 | Xi'an Zhongxing New Software Co. Ltd | Internet device and automatic switching method, apparatus and circuit for charging interface of internet device |
| CN103972931A (en) * | 2013-01-25 | 2014-08-06 | 万国半导体(开曼)股份有限公司 | Input line selector for battery charger |
| CN103972931B (en) * | 2013-01-25 | 2017-05-17 | 万国半导体(开曼)股份有限公司 | Input line selector for battery charger |
| CN103986214A (en) * | 2014-05-30 | 2014-08-13 | 苏州天鸣信息科技有限公司 | Mobile terminal controlling charging state through lock and system thereof |
| CN103986214B (en) * | 2014-05-30 | 2016-04-13 | 国网山东省电力公司聊城供电公司 | A kind of mobile terminal and system thereof being controlled charged state by lockset |
| CN104065125A (en) * | 2014-06-28 | 2014-09-24 | 青岛歌尔声学科技有限公司 | Electronic product charging system |
| CN110970970A (en) * | 2015-03-27 | 2020-04-07 | 青岛海信移动通信技术股份有限公司 | Processing method and device of terminal charger |
| CN105515103A (en) * | 2015-12-23 | 2016-04-20 | 深圳市中孚能电气设备有限公司 | Miner's lamp, charging circuit and charging method of miner's lamp |
| CN105515103B (en) * | 2015-12-23 | 2019-05-03 | 深圳市中孚能电气设备有限公司 | A kind of mine lamp and its charging circuit, charging method |
| CN105515137B (en) * | 2016-02-22 | 2019-02-26 | 天津市天楚科技有限公司 | Mobile power source with Charge Management |
| CN105515137A (en) * | 2016-02-22 | 2016-04-20 | 天津市天楚科技有限公司 | Mobile power source having charge management function |
| CN106602663A (en) * | 2017-01-05 | 2017-04-26 | 捷开通讯(深圳)有限公司 | Combined intelligent device charging and mutual charging device and charging method |
| US11133701B2 (en) | 2017-01-05 | 2021-09-28 | Huizhou Tcl Mobile Communication Co., Ltd. | Method and apparatus for charging and mutual charging a combination of intelligent devices |
| WO2019100300A1 (en) * | 2017-11-23 | 2019-05-31 | 深圳市柔宇科技有限公司 | Charging circuit and electronic device |
| CN111033928A (en) * | 2017-11-23 | 2020-04-17 | 深圳市柔宇科技有限公司 | Charging circuit and electronic device |
| CN108536627A (en) * | 2018-03-30 | 2018-09-14 | 联想(北京)有限公司 | The control method and electronic equipment of electronic equipment |
| CN108536627B (en) * | 2018-03-30 | 2021-07-16 | 联想(北京)有限公司 | Control method of electronic equipment and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Peter Chong Communication Technology Co Ltd Assignor: Biyadi Co., Ltd. Contract fulfillment period: 2008.4.25 to 2017.11.30 Contract record no.: 2008440000063 Denomination of utility model: Automatic recognition circuit for charging power supply Granted publication date: 20081105 License type: General permission Record date: 20080504 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.4.25 TO 2017.11.30 Name of requester: BEIJING BIDE CHUANGZHAN COMMUNICATION TECHNOLOGY Effective date: 20080504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20151214 |
|
| EXPY | Termination of patent right or utility model |