CN103001301A - Mobile terminal charging device, system and method - Google Patents
Mobile terminal charging device, system and method Download PDFInfo
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- CN103001301A CN103001301A CN2012105729080A CN201210572908A CN103001301A CN 103001301 A CN103001301 A CN 103001301A CN 2012105729080 A CN2012105729080 A CN 2012105729080A CN 201210572908 A CN201210572908 A CN 201210572908A CN 103001301 A CN103001301 A CN 103001301A
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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 invention discloses a mobile terminal charging device, system and method which are used for reducing common-mode noise signals brought into a mobile terminal during charging of the charging device. The mobile terminal charging device comprises a switch power source primary unit, a transformer and a switch power source secondary unit, wherein the switch power source primary unit is connected with the switch power source secondary unit through the transformer, and a reference potential end of the switch power source secondary unit is connected with the ground.
Description
Technical Field
The present invention relates to the field of electronic product technologies, and in particular, to a mobile terminal charging device, system, and method.
Background
At present, a mobile terminal can work for a long time under the support of electric energy stored by a battery, and the battery can obtain the electric energy for storage through connecting a charging device with an alternating current power supply used daily under the condition of not being separated from the mobile terminal.
Referring to fig. 1, the mobile phone charger system includes: the mobile phone comprises an alternating current power supply 100, a charger 200 and a mobile phone device 300, wherein a switching power supply primary unit 210 in the charger 200 is connected with the alternating current power supply 100 to obtain 220V alternating current and is connected with a switching power supply secondary unit 220 through a transformer 220, so that an output electric signal is converted into 5V alternating current through the transformer 220 and is input into the switching power supply secondary unit 230, the switching power supply secondary unit 230 rectifies the 5V alternating current and outputs the 5V direct current to the mobile phone device 300, and therefore a battery in the mobile phone device 300 is charged.
As can be seen from the above charging process, a parasitic capacitance exists between the primary unit 210 and the secondary unit 230. In addition, since the primary unit 210 of the switching power supply is a switching power supply, the switching frequency is high, a common mode noise signal is generated, the common mode noise signal is transmitted to the secondary unit 230 of the switching power supply through a parasitic capacitor, and the secondary unit 230 of the switching power supply is directly connected to the mobile phone device, so the common mode noise signal is also transmitted to the mobile phone device.
The smart mobile terminal is generally equipped with a touch screen, and a touch signal loop of the capacitive touch screen is actually referenced to the ground, so that a common mode noise signal can flow back to the ground through the touch screen signal loop, and the common mode noise signal loop is the same as the touch signal loop, thereby generating interference on the touch signal. When the common mode noise signal introduced by the charger is large, the phenomenon that the touch screen does not respond or a trip point occurs can be caused.
Therefore, the conventional charging device for the mobile terminal introduces a common-mode noise signal into the mobile terminal in the charging process, and generates interference on a touch screen of the mobile terminal.
Disclosure of Invention
The invention provides a mobile terminal charging device, a system and a method, which are used for reducing common-mode noise signals introduced into a mobile terminal in the charging process of the charging device.
The invention provides a mobile terminal charging device, which comprises: a switching power supply primary unit, a transformer, and a switching power supply secondary unit; wherein,
the switching power supply primary unit is connected with the switching power supply secondary unit through the transformer;
and the reference potential end of the secondary unit of the switching power supply is grounded.
The reference potential end of the secondary unit of the switching power supply of the mobile terminal charging device is grounded, so that the mobile terminal charging device can output a common-mode noise signal generated in the process of converting an alternating current signal into a direct current signal to the ground without being introduced into the mobile terminal connected with the charging device, and the touch screen of the mobile terminal is prevented from being interfered.
Preferably, the reference potential terminal of the switching power supply secondary unit is connected to a grounding point of the mobile terminal to which the charging device is connected.
Or, the mobile terminal charging device further includes: the three-pin socket head is characterized in that a zero line and a live line of the three-pin socket head are respectively connected with the input end of the primary unit of the switching power supply;
and the ground wire of the three-pin socket head is connected with the reference potential end of the switching power supply secondary unit.
It can be seen that there are various ways of grounding the reference potential end of the secondary unit of the switching power supply, and the grounding is not limited to the two ways, as long as the reference potential end of the secondary unit of the switching power supply has the same potential as the ground, the common mode noise signal generated in the process of converting the alternating current signal into the direct current signal can be output to the ground.
The invention provides a mobile terminal charging system, which comprises: alternating current power supply, the charging device and the mobile terminal, wherein,
the charging device is respectively connected with the alternating current power supply and the mobile terminal, the alternating current signals obtained from the alternating current power supply are converted into direct current signals and then output to the mobile terminal, and common-mode noise signals generated in the conversion process flow to the ground through a reference potential end of a secondary unit of the switching power supply in the charging device.
In the charging system, a common-mode noise signal generated in the conversion process of the charging device flows to the ground through the reference potential end of the switching power supply secondary unit in the charging device, and is not introduced into a mobile terminal connected with the charging device, so that interference on a touch screen of the mobile terminal is avoided.
Preferably, the reference potential terminal of the switching power supply secondary unit is connected to a grounding point of the mobile terminal, and the common mode noise signal is guided to flow to the ground through the grounding point of the mobile terminal.
Or the reference potential end of the switching power supply secondary unit is connected with the ground wire of the three-pin socket head in the charging device, and the common-mode noise signal is guided to flow to the ground through the ground wire of the three-pin socket head.
The invention provides a mobile terminal charging method, which is applied to the charging system and comprises the following steps:
the method comprises the steps that an alternating current signal is obtained from an alternating current power supply, converted into a direct current signal and output to the mobile terminal;
and outputting the common-mode noise signal generated in the conversion process to the ground through the reference potential end of the secondary unit of the switching power supply.
Therefore, common-mode noise signals generated in the conversion process are output to the ground through the reference potential end of the secondary unit of the switching power supply and cannot be introduced into the mobile terminal connected with the charging device, and interference on a touch screen of the mobile terminal is avoided.
Preferably, the outputting the common mode noise signal generated in the conversion process to the ground through the reference potential terminal of the switching power supply secondary unit includes:
and guiding the common-mode noise signal to be output to the ground through the reference potential end of the switch power supply secondary unit and the grounding point of the mobile terminal, wherein the reference potential end of the switch power supply secondary unit is connected with the grounding point of the mobile terminal.
Alternatively, the outputting the common mode noise signal generated during the conversion to the ground through the reference potential terminal of the switching power supply secondary unit includes:
and guiding the common-mode noise signal to flow to the ground through a reference potential end of the switching power supply secondary unit and a ground wire of the three-pin socket head, wherein the reference potential end of the switching power supply secondary unit is connected with the ground wire of the three-pin socket head in the charging device.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a diagram of a prior art handset charger system;
fig. 2 is a structural diagram of a mobile terminal charging device according to a first embodiment of the invention;
fig. 3 is an architecture diagram of a mobile terminal charging system according to a second embodiment of the present invention;
FIG. 4 is a test chart of a touch screen during charging using a prior art charging device;
FIG. 5 is a test chart of a touch screen during charging by using the charging device in the embodiment of the present invention;
fig. 6 is an architecture diagram of a mobile terminal charging system according to a third embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In the embodiment of the invention, the reference potential end of the secondary unit of the switching power supply in the charging device of the mobile terminal is grounded, so that a common-mode noise signal generated in the conversion process of the charging device can be directly output to the ground without being introduced into the mobile terminal connected with the charging device, and the interference on a touch screen of the mobile terminal is avoided.
In a first embodiment of the present invention, as shown in fig. 2, a mobile terminal charging device includes: a switching power supply primary unit 210, a transformer 220, and a switching power supply secondary unit 230; wherein,
the switching power supply primary unit 210 is connected with the switching power supply secondary unit 230 through a transformer 220; while the reference potential terminal of the switching power supply secondary unit 230 is grounded.
Thus, the ac signal is input from the switching power supply primary unit 210 to the charging device, passes through the switching power supply primary unit 210, the transformer 220, and the switching power supply secondary unit 230, is converted into a dc signal, and is output from the switching power supply secondary unit 230.
As shown in fig. 2, since the reference potential terminal (-) of the switching power supply secondary unit 230 is grounded, the output terminal (+) of the switching power supply secondary unit 230 outputs a direct current signal, and a common mode noise signal generated during the conversion flows to the ground through the reference potential terminal (-) of the switching power supply secondary unit 230. Therefore, the mobile terminal connected with the charging device can not be introduced, and the interference on the touch screen of the mobile terminal is avoided.
In the embodiment of the present invention, there are various grounding manners of the reference potential terminal of the switching power supply secondary unit 230, for example: when the charger is used, the reference potential terminal (-) of the switching power supply secondary unit 230 is connected to the ground point of the mobile terminal to which the charging device is connected for charging. Or, the mobile terminal charging device further includes: the neutral and live wires of the three-pin socket head are connected to the input terminal of the switching power supply primary unit 210, respectively, so that the ground wire of the three-pin socket head is connected to the reference potential terminal (-) of the switching power supply secondary unit 230.
Of course, the embodiments of the present invention are not limited to the above two manners, and as long as the reference potential terminal (-) of the secondary unit of the switching power supply has the same potential as the ground, the common mode noise signal generated in the process of converting the ac signal into the dc signal can be output to the ground.
In a second embodiment, a mobile terminal charging system may be configured by charging a mobile terminal using the charging device, as shown in fig. 3, and includes: alternating current power supply 100, charging device 200, and mobile terminal 300. The specific structure of the charging device 200 may be as shown in the embodiments, and includes: a switching power supply primary unit 210, a transformer 220, and a switching power supply secondary unit 230.
In this way, the charging device 200 is connected to the AC power source AC100 and the mobile terminal 300, respectively, and the AC signal obtained from the AC power source AC100 is converted into a dc signal and output to the mobile terminal 300, and the common mode noise signal generated during the conversion flows to the ground through the reference potential terminal of the switching power supply secondary unit 230 in the charging device 200.
Preferably, the ac signal is inputted to the switching power supply primary unit 210 in the charging device 200, passes through the switching power supply primary unit 210, the transformer 220, and the switching power supply secondary unit 230, is converted into a dc signal, and is outputted to the mobile terminal 300 through the output terminal (+) and the reference potential terminal (-) of the switching power supply secondary unit 230.
As shown in fig. 3, the reference potential terminal (-) of the switching power supply secondary unit 230 is connected to the ground point of the mobile terminal 300 such that the potential of the reference potential terminal (-) is zero, so that the dc signal directly enters the mobile terminal 300 from the output terminal (+) of the switching power supply secondary unit 230, and the common mode noise signal generated during the above-mentioned conversion flows to the ground through the reference potential terminal (-) of the switching power supply secondary unit 230, the ground point of the mobile terminal 300. I.e., the reference potential terminal (-) of the switching power supply secondary unit 230 is connected to the ground point of the mobile terminal 300, and the common mode noise signal is guided to flow to the ground through the ground point of the mobile terminal 300.
It can be seen that in the charging system, the common mode noise signal flows to the ground through the reference potential terminal (-), the grounding point of the mobile terminal 300, and thus does not enter the mobile terminal 300, and certainly does not generate interference to the touch screen of the mobile terminal.
When the reference potential end of the secondary unit of the switching power supply of the charging device is not grounded, and the charging device is used for charging a mobile terminal with a capacitive touch screen, the charging device can introduce a common-mode noise signal in a voltage conversion process into the mobile terminal, so that the touch screen can not respond or jump points and other phenomena can occur, as shown in fig. 4, in the test process, obvious jump points occur on the touch screen, and the function of the touch screen is influenced.
When the charging device in the embodiment of the invention is used for charging the mobile terminal with the capacitive touch screen, the common-mode noise signal flows to the ground through the reference potential end and cannot be introduced into the mobile terminal, so that the effect is shown in fig. 5 when the mobile terminal is tested, the jumping point phenomenon does not occur, and the poor touch screen cannot be caused.
In the third embodiment, since there are various ways of grounding the reference potential terminal of the secondary unit 230 of the switching power supply, in this embodiment, the mobile terminal charging device further includes: a three-pin socket head, a ground line of which is connected to a reference potential terminal of the switching power supply secondary unit, and therefore, the charging system in this embodiment, as shown in fig. 6, includes: alternating current power supply 100, charging device 200, and mobile terminal 300. Wherein, charging device 200 includes: a three pin socket head 240, a switching power primary unit 210, a transformer 220, and a switching power secondary unit 230.
The live and neutral wires of the three-pin socket head 240 are connected to the switching power primary unit 210, respectively, and the ground wire of the three-pin socket head 240 is connected to the reference potential terminal (-) of the switching power secondary unit 230.
Thus, after the three-pin socket head 240 is connected to the AC power AC100, the AC signal is introduced into the switching power primary through the live line and the neutral line, and then converted into the dc signal through the switching power primary unit 210, the transformer 220, and the switching power secondary unit 230, and then inputted into the mobile terminal 300.
Since the reference potential terminal (-) of the switching power supply secondary unit 230 is connected to the ground of the three-pin socket head 240, i.e., the reference potential terminal (-) is connected to the ground through the three-pin socket head 240, which is equal to zero potential, the output terminal (+) of the switching power supply secondary unit 230 outputs a direct current signal to the mobile terminal 300, and the reference potential terminal (-) of the switching power supply secondary unit 230 directs the common mode noise signal during the voltage conversion process to the ground through the ground of the three-pin socket head 240.
Also, the charging system does not input a common mode noise signal to the mobile terminal, and thus, does not generate interference to a touch screen of the mobile terminal.
In the charging systems of all the above embodiments, the charging process of the charging device 200 includes:
an ac signal obtained from the ac power supply 100, and the ac signal is converted into a dc signal and then output to the mobile terminal 300; and,
the common mode noise signal generated during the conversion process is output to ground through the reference potential terminal of the switching power supply secondary unit 230.
Preferably, outputting the common mode noise signal generated during the conversion to the ground through the reference potential terminal of the switching power supply secondary unit 230 includes:
the common mode noise signal is led to be output to the ground through the reference potential terminal of the switching power supply secondary unit 230 and the ground point of the mobile terminal 300, wherein the reference potential terminal of the switching power supply secondary unit 230 is connected to the ground point of the mobile terminal 300.
Alternatively, the common mode noise signal is directed to flow to ground through the reference potential terminal of the switching power supply secondary unit 230 and the ground of the three-pin socket head, wherein the reference potential terminal of the switching power supply secondary unit 230 is connected to the ground of the three-pin socket head in the charging device 200.
Therefore, the reference potential end of the secondary unit of the switching power supply of the mobile terminal charging device is grounded, so that the mobile terminal charging device can output a common-mode noise signal generated in the process of converting an alternating current signal into a direct current signal to the ground without being introduced into the mobile terminal connected with the charging device, and the touch screen of the mobile terminal is prevented from being interfered.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A mobile terminal charging device, characterized in that, the mobile terminal charging device includes: a switching power supply primary unit, a transformer, and a switching power supply secondary unit; wherein,
the switching power supply primary unit is connected with the switching power supply secondary unit through the transformer;
and the reference potential end of the secondary unit of the switching power supply is grounded.
2. The charging device of claim 1, wherein the reference potential terminal of the switching power supply secondary unit is connected to a ground point of a mobile terminal to which the charging device is to be charged.
3. The charging device of claim 1, wherein said mobile terminal charging device further comprises: a three-pin socket head, wherein,
the zero line and the live line of the three-pin socket head are respectively connected with the input end of the primary unit of the switching power supply;
and the ground wire of the three-pin socket head is connected with the reference potential end of the switching power supply secondary unit.
4. A mobile terminal charging system, comprising: the alternating current power supply, the charging device according to claim 1, and the mobile terminal,
the charging device is respectively connected with the alternating current power supply and the mobile terminal, the alternating current signals obtained from the alternating current power supply are converted into direct current signals and then output to the mobile terminal, and common-mode noise signals generated in the conversion process flow to the ground through a reference potential end of a secondary unit of the switching power supply in the charging device.
5. The system of claim 4, wherein the reference potential terminal of the switching power supply secondary unit is connected to the ground point of the mobile terminal, and the common mode noise signal is directed to ground via the ground point of the mobile terminal.
6. The system of claim 4, wherein the reference potential terminal of the switched mode power supply secondary unit is connected to a ground of a three pin socket head in the charging device, and the common mode noise signal is directed to flow to ground through the ground of the three pin socket head.
7. A mobile terminal charging method applied to the charging system of claim 4, the method comprising:
the method comprises the steps that an alternating current signal is obtained from an alternating current power supply, converted into a direct current signal and output to the mobile terminal;
and outputting the common-mode noise signal generated in the conversion process to the ground through the reference potential end of the secondary unit of the switching power supply.
8. The method of claim 7, wherein outputting the common mode noise signal generated during the conversion to ground through a reference potential terminal of the switching power supply secondary unit comprises:
and guiding the common-mode noise signal to be output to the ground through the reference potential end of the switch power supply secondary unit and the grounding point of the mobile terminal, wherein the reference potential end of the switch power supply secondary unit is connected with the grounding point of the mobile terminal.
9. The method of claim 7, wherein outputting the common mode noise signal generated during the conversion to ground through a reference potential terminal of the switching power supply secondary unit comprises:
and guiding the common-mode noise signal to flow to the ground through a reference potential end of the switching power supply secondary unit and a ground wire of the three-pin socket head, wherein the reference potential end of the switching power supply secondary unit is connected with the ground wire of the three-pin socket head in the charging device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105729080A CN103001301A (en) | 2012-12-25 | 2012-12-25 | Mobile terminal charging device, system and method |
| CN2012207258932U CN203056658U (en) | 2012-12-25 | 2012-12-25 | Mobile terminal charging device and system thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105729080A CN103001301A (en) | 2012-12-25 | 2012-12-25 | Mobile terminal charging device, system and method |
| CN2012207258932U CN203056658U (en) | 2012-12-25 | 2012-12-25 | Mobile terminal charging device and system thereof |
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| CN103001301A true CN103001301A (en) | 2013-03-27 |
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| CN2012105729080A Pending CN103001301A (en) | 2012-12-25 | 2012-12-25 | Mobile terminal charging device, system and method |
| CN2012207258932U Ceased CN203056658U (en) | 2012-12-25 | 2012-12-25 | Mobile terminal charging device and system thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012207258932U Ceased CN203056658U (en) | 2012-12-25 | 2012-12-25 | Mobile terminal charging device and system thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921208A (en) * | 2015-12-28 | 2017-07-04 | 小米科技有限责任公司 | Method, device and charger that control charger charges |
| CN107132949A (en) * | 2017-04-28 | 2017-09-05 | 北京小米移动软件有限公司 | anti-interference method, device, terminal and storage medium |
| WO2017202315A1 (en) * | 2016-05-26 | 2017-11-30 | 华为技术有限公司 | Control method and control device for power adapter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103001301A (en) * | 2012-12-25 | 2013-03-27 | 北京小米科技有限责任公司 | Mobile terminal charging device, system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101025636A (en) * | 2006-02-24 | 2007-08-29 | 李上灿 | Transformer coupled purallel switch type voltage-stabilized source |
| US20100202164A1 (en) * | 2006-01-25 | 2010-08-12 | Lin Sicong | Switching power converter for suppressing common mode noise |
| CN203056658U (en) * | 2012-12-25 | 2013-07-10 | 北京小米科技有限责任公司 | Mobile terminal charging device and system thereof |
-
2012
- 2012-12-25 CN CN2012105729080A patent/CN103001301A/en active Pending
- 2012-12-25 CN CN2012207258932U patent/CN203056658U/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100202164A1 (en) * | 2006-01-25 | 2010-08-12 | Lin Sicong | Switching power converter for suppressing common mode noise |
| CN101025636A (en) * | 2006-02-24 | 2007-08-29 | 李上灿 | Transformer coupled purallel switch type voltage-stabilized source |
| CN203056658U (en) * | 2012-12-25 | 2013-07-10 | 北京小米科技有限责任公司 | Mobile terminal charging device and system thereof |
Non-Patent Citations (1)
| Title |
|---|
| 黄振军等: "充电器电磁干扰的抑制技术", 《安全与电磁兼容》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921208A (en) * | 2015-12-28 | 2017-07-04 | 小米科技有限责任公司 | Method, device and charger that control charger charges |
| WO2017202315A1 (en) * | 2016-05-26 | 2017-11-30 | 华为技术有限公司 | Control method and control device for power adapter |
| US11126301B2 (en) | 2016-05-26 | 2021-09-21 | Honor Device Co., Ltd. | Power adapter control method and control apparatus |
| CN107132949A (en) * | 2017-04-28 | 2017-09-05 | 北京小米移动软件有限公司 | anti-interference method, device, terminal and storage medium |
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| CN203056658U (en) | 2013-07-10 |
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Address after: 100085, Qinghe street, Beijing, Huarun colorful city shopping center, two, 13, 68 Applicant after: Xiaomi Technology Co., Ltd. Address before: 100102, No. 50, block A, building No. 12, winding stone world building, Wangjing West Road, Beijing, Chaoyang District Applicant before: Beijing Xiaomi Technology Co., Ltd. |
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Application publication date: 20130327 |