CN101630859A - Mobile terminal charger - Google Patents
Mobile terminal charger Download PDFInfo
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- CN101630859A CN101630859A CN200910109411A CN200910109411A CN101630859A CN 101630859 A CN101630859 A CN 101630859A CN 200910109411 A CN200910109411 A CN 200910109411A CN 200910109411 A CN200910109411 A CN 200910109411A CN 101630859 A CN101630859 A CN 101630859A
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- portable terminal
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- charger
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Abstract
The invention relates to a mobile terminal charger comprising a transformer, a charging module, a first alternating current switch, a control module, an internal power source and a connecting device. The transformer transforms alternating current on a power network into suitable charging voltage; the charging module is connected with one end of the secondary side of the transformer for charging a mobile terminal; the output of the charging module is connected with a charging terminal of the mobile terminal; the other end of the secondary side of the transformer is grounded; the first alternating current switch is connected in series with an alternating phase line; the control module is used for controlling the first alternating current switch to switch on or off; the internal power source supplies power for the control module; and the connecting device enables the charging module and the control module to work when the mobile terminal charger is connected with the mobile terminal so as to switch on the first alternating current switch. The mobile terminal charger has the advantage that no power is consumed when the mobile terminal charger is not connected with the mobile terminal.
Description
Technical field
The present invention relates to circuit field, more particularly, relate to a kind of portable terminal charger.
Background technology
Generally speaking, portable terminal (for example mobile phone) uses battery as power supply, and certainly, these batteries normally can charge repeatedly and use, and after the battery electric quantity in the portable terminal uses, can re-use after its charging.Usually can be by being arranged on a special connector on the portable terminal, make charger power end and ground end respectively with portable terminal on the positive pole of battery be connected with negative pole, reach the purpose of charging.In the prior art, above-mentioned charger is equivalent to a DC power supply haply, when portable terminal connects thereon, can be the battery charge of portable terminal; When above-mentioned portable terminal was not connected on the above-mentioned charger, still in work, only its electric current was less, but still has certain power consumption for this charger.Be that existing charger still has certain power consumption when standby.
Summary of the invention
The technical problem to be solved in the present invention is, still has certain power to consume defective at the above-mentioned of prior art when the standby, and a kind of portable terminal charger that does not have power consumption when standby is provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of portable terminal charger, comprise alternating current on the electrical network is converted to the transformer that is suitable for charging voltage, be connected the charging module that is used on described transformer secondary output one end described portable terminal charging, the output that connects described charging module is connected on the charging terminal of described portable terminal, described transformer secondary output other end ground connection, also comprise first alternating-current switch that is serially connected on the described interchange phase line, be used to control the control module of the described first alternating-current switch break-make, for the built-in power of described control module power supply and when described portable terminal charger is connected with portable terminal, make described charging module, control module is worked, thereby makes the jockey of the first alternating-current switch conducting.
In portable terminal charger of the present invention, described transformer secondary output end of the same name is connected with described charging module, and its non-same polarity is connected with ground.
In portable terminal charger of the present invention, described jockey comprises first contact, second contact that is connected with ground connection one end of described transformer secondary output that is connected with described battery of mobile terminal negative pole and is arranged on when it is connected with ground on the described control module current supply circuit makes described control module get the 3rd contact of electric work; When described portable terminal was connected described portable terminal charger, described first contact, second contact and the 3rd contact interconnected.
In portable terminal charger of the present invention, described the first terminal, second terminal and the 3rd terminal by with portable terminal that described charger is connected on contact chip be communicated with.
In portable terminal charger of the present invention, described control module comprises photoelectrical coupler, and the positive pole of the light-emitting tube of described photoelectrical coupler is connected described built-in power anode, and the negative pole of described light-emitting tube is connected with described the 3rd contact; Its light receiving tube one end is electrically connected with the described input zero line that exchanges, and the other end is connected the control of described first alternating-current switch and extremely goes up.
In portable terminal charger of the present invention, described first alternating-current switch comprises controllable silicon, the described silicon controlled control utmost point is connected with light receiving tube one end of described photoelectrical coupler, and its switch terminals is connected to described alternating current phase line and described primary one end.
In portable terminal charger of the present invention, described built-in power comprises rechargeable battery, and described rechargeable battery is anodal to be connected with described control module power end, and its negative pole is connected with described transformer secondary output non-same polarity., described first alternating-current switch comprises controllable silicon, and the described silicon controlled control utmost point is connected with light receiving tube one end of described photoelectrical coupler, and its switch terminals is connected to described alternating current phase line and described primary one end.
In portable terminal charger of the present invention, described built-in power comprises rechargeable battery, and described rechargeable battery is anodal to be connected with described control module power end, and its negative pole is connected with described transformer secondary output non-same polarity.
In portable terminal charger of the present invention, also comprise the hand switch that is attempted by on described first alternating-current switch.
In portable terminal charger of the present invention, described charging module comprises the rectification unit that described transformer secondary output alternating current is converted to direct current and is provided to described charhing unit.
In portable terminal charger of the present invention, described charging module comprises the rectification unit that described transformer secondary output alternating current is converted to direct current and is provided to described charhing unit.
In portable terminal charger of the present invention, described charging module comprises the rectification unit that described transformer secondary output alternating current is converted to direct current and is provided to described charhing unit.
Implement portable terminal charger of the present invention, have following beneficial effect: owing to be serially connected with first alternating-current switch in the charger ac circuit, and this first alternating-current switch is connected when this charger is connected with portable terminal and is made its ac circuit connection; And when this charger was not connected with portable terminal, its ac circuit disconnected owing to the disconnection of first alternating-current switch, therefore, did not have power consumption when charger is not connected with portable terminal.
Description of drawings
Fig. 1 is the structured flowchart of a kind of portable terminal charger of the present invention embodiment;
Fig. 2 is the circuit theory diagrams of described embodiment.
Embodiment
Embodiments of the present invention is further illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, in a kind of portable terminal charger of the present invention embodiment, described charger comprises transformer T1, first alternating-current switch 1, hand switch 2, control module 3, built-in power 4, rectification unit 5, charging module 6, central controller 7 and charge switch 7, and this charger also comprises charging terminal 10, the first terminal 11, second terminal 12 and the 3rd terminal 13 (above-mentioned four terminals are labeled as P0, P1, P2 and P3 respectively in Fig. 1) in addition.In the present embodiment, the elementary end of transformer T1 is connected with the zero line N of alternating current; The elementary other end of transformer T1 is connected with the phase line L of alternating current by first alternating-current switch 1, hand switch 2 is attempted by on above-mentioned first alternating-current switch 1, when above-mentioned first alternating-current switch 1 lost efficacy, can manually connect the other end of alternating current phase line L and transformer T1.First alternating-current switch 1 comprises three terminals, two switch terminals and a control end, and two switch terminals are connected on the above-mentioned alternating current phase line L and the other end of transformer T1, and under the effect of above-mentioned control end, two switch terminals disconnects or is closed.The secondary end ground connection of transformer T1, and be connected with above-mentioned second terminal 12, promptly second terminal 12 is exactly an earth terminal; The secondary other end of transformer T1 is connected with charging terminal 10 with charging module 6 through rectification unit 5; The negative terminal of built-in power 4 links to each other with ground, and its anode is connected respectively to the power end of central processing unit 7 and control module 3, is described central processing unit 7 and control module 3 power supplies; Central processing unit 7 detects the voltage of above-mentioned built-in power 4, and according to this voltage output control signal, control charge switch 8; When the voltage of above-mentioned built-in power 4 was lower than set point, the control signal of central processing unit 7 outputs was controlled above-mentioned charge switch 8 conductings, makes built-in power 4 anodes be connected with above-mentioned charging terminal 10, was above-mentioned built-in power 4 chargings; When the voltage of above-mentioned built-in power 4 was higher than another set point, the control signal of central processing unit 7 outputs was controlled above-mentioned charge switch 8 and is disconnected, and made built-in power 4 anodes and above-mentioned charging terminal 10 disconnect, and stopped the charging to built-in power 4.The power end of control module 3 is connected with the anode of built-in power 4, the earth terminal of control module 3 is connected with the 3rd terminal 13, when above-mentioned the 3rd terminal 13 is connected when falling down to the ground, control module 3 is just by built-in power 4 power supplies, start working, output signal makes alternating-current switch 1 conducting of winning to the control end of above-mentioned first alternating-current switch 1.In the present embodiment, above-mentioned built-in power is a rechargeable battery.
In the present embodiment, above-mentioned first alternating-current switch 1 comprises controllable silicon, and control module 3 comprises photoelectrical coupler, and central processing unit 7 is MCU, and charge switch 8 field effect transistor.Above-mentioned charging terminal 10, the first terminal 11, second terminal 12 and the 3rd terminal 13 are arranged on the connector, and this connector is used for cooperating with connector on the portable terminal when above-mentioned charger is connected with portable terminal, connects charger and portable terminal.When above-mentioned connection, charging terminal 10 links to each other with anode in the portable terminal, and the first terminal 11 links to each other with the battery cathode of portable terminal.Simultaneously, the first terminal 11, second terminal 12 and the 3rd terminal 13 link together by the connector on the portable terminal or other elements, be that the first terminal 11, second terminal 12 and the 3rd terminal 13 are all held with being connected, so the electric power loop of control module 3 is switched on, power module 3 gets electric work.
Fig. 2 is the electrical schematic diagram of present embodiment, in Fig. 2, the elementary end of the same name of transformer T1 is connected on the alternating current zero line, alternating current phase line L is connected to the non-same polarity of above-mentioned transformer T1 by two switch terminals of controllable silicon Q1, on two switch terminals of above-mentioned controllable silicon Q1, also be parallel with hand switch SW1, the trigger end of controllable silicon Q1 links to each other with the output of accepting the light part of photoelectrical coupler U1, and the input of accepting the light part of photoelectrical coupler U1 is connected on the above-mentioned alternating current zero line N by resistance R 1; The non-same polarity ground connection of T1 level of transformer, the end of the same name of T1 level of transformer is connected with the positive pole of diode D1, and the negative pole of diode D1 is connected the input of above-mentioned charging module, and the output of charging module is connected on the above-mentioned charging port; In the present embodiment, above-mentioned control module 4 is photoelectrical coupler U1, and be that the internal electric source 4 that control module 3 is powered is batteries, the minus earth of this battery, its positive pole is connected the positive pole of the light-emitting diode of above-mentioned photoelectrical coupler, and the negative pole of the light-emitting diode of above-mentioned photoelectrical coupler is connected with above-mentioned the 3rd contact 13.In addition, in the present embodiment, also comprise and detect cell voltage and when described supply voltage is lower than set point, export control signal, the central processing unit that makes field effect transistor Q2 conducting; The source electrode of this field effect transistor Q2 is connected with above-mentioned charging terminal 10, and its drain electrode is held with being connected.
In the present embodiment, above-mentioned charger operation principle is as follows: after portable terminal connects the portable terminal charger, the first terminal 11, second terminal 12 and the 3rd terminal 13 link together, form the loop, operating voltage is provided for photoelectrical coupler U1 interior light emitting diodes as the battery (BT1) of internal electric source, makes photoelectrical coupler U1 operate as normal; Input supply voltage is through R1, and photoelectrical coupler U1 makes controllable silicon Q1 conducting work for controllable silicon Q1 provides starting resistor, and charger for mobile phone is communicated with the AC supply voltage loop, and portable terminal is charged normal management;
When mobile phone leaves charger, (P1, P2, P3) disconnect mutually, photoelectrical coupler U1, controllable silicon Q1 quit work, and cut off input supply voltage, charger for mobile phone quits work, stop cell-phone charging, realized the purpose of zero-power, prevent to forget the unusual security incident generation of cutting off the electricity supply and bringing again.
In the present embodiment, when central controller U2 (single-chip microcomputer) detected its voltage and is lower than 3.5V, central controller U2 exported a control signal, makes field effect transistor Q2 conducting, and charger for mobile phone charges to battery BT1; When central controller U2 (battery voltage detection control mould is fast) detection battery BT1 voltage equaled 5V, central controller U2 exported a control signal, and field effect transistor Q2 is turn-offed, and charger for mobile phone stops charging to battery BT1; If battery BT1 lost efficacy, and normal operating voltage can not be provided, and pressed mains switch button SW1, can form the loop, finished that mobile phone is charged normal management.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1, a kind of portable terminal charger, comprise alternating current on the electrical network is converted to the transformer that is suitable for charging voltage, be connected the charging module that is used on described transformer secondary output one end described portable terminal charging, the output that connects described charging module is connected on the charging terminal of described portable terminal, described transformer secondary output other end ground connection, it is characterized in that, also comprise first alternating-current switch that is serially connected on the described interchange phase line, be used to control the control module of the described first alternating-current switch break-make, for the built-in power of described control module power supply and when described portable terminal charger is connected with portable terminal, make described charging module, control module is worked, thereby makes the jockey of the first alternating-current switch conducting.
2, portable terminal charger according to claim 1 is characterized in that, described transformer secondary output end of the same name is connected with described charging module, and its non-same polarity is connected with ground.
3, portable terminal charger according to claim 2, it is characterized in that described jockey comprises first contact, second contact that is connected with ground connection one end of described transformer secondary output that is connected with described battery of mobile terminal negative pole and is arranged on when it is connected with ground on the described control module current supply circuit makes described control module get the 3rd contact of electric work; When described portable terminal was connected described portable terminal charger, described first contact, second contact and the 3rd contact interconnected.
4, portable terminal charger according to claim 3 is characterized in that, described the first terminal, second terminal and the 3rd terminal by with portable terminal that described charger is connected on contact chip be communicated with.
5, portable terminal charger according to claim 4, it is characterized in that, described control module comprises photoelectrical coupler, and the positive pole of the light-emitting tube of described photoelectrical coupler is connected described built-in power anode, and the negative pole of described light-emitting tube is connected with described the 3rd contact; Its light receiving tube one end is electrically connected with the described input zero line that exchanges, and the other end is connected the control of described first alternating-current switch and extremely goes up.
6, portable terminal charger according to claim 5, it is characterized in that, described first alternating-current switch comprises controllable silicon, the described silicon controlled control utmost point is connected with light receiving tube one end of described photoelectrical coupler, and its switch terminals is connected to described alternating current phase line and described primary one end.
7, portable terminal charger according to claim 6 is characterized in that, described built-in power comprises rechargeable battery, and described rechargeable battery is anodal to be connected with described control module power end, and its negative pole is connected with described transformer secondary output non-same polarity.
8, portable terminal charger according to claim 7, it is characterized in that, also comprise the charging device that is used to the charging of described built-in power, described charging device comprises and is used to central controller that detects the built-in power magnitude of voltage and export control signal and the field effect transistor that is switched on or switched off the output of described built-in power anode and described charging module under described control signal.
9, according to any described portable terminal charger of claim 1-8, it is characterized in that, also comprise the hand switch that is attempted by on described first alternating-current switch.
According to any described portable terminal charger of claim 1-8, it is characterized in that 10, described charging module comprises the rectification unit that described transformer secondary output alternating current is converted to direct current and is provided to described charhing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910109411A CN101630859B (en) | 2009-08-14 | 2009-08-14 | Mobile terminal charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910109411A CN101630859B (en) | 2009-08-14 | 2009-08-14 | Mobile terminal charger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101630859A true CN101630859A (en) | 2010-01-20 |
| CN101630859B CN101630859B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910109411A Expired - Fee Related CN101630859B (en) | 2009-08-14 | 2009-08-14 | Mobile terminal charger |
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| Country | Link |
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| CN (1) | CN101630859B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097841A (en) * | 2010-12-31 | 2011-06-15 | 崧顺电子（深圳）有限公司 | Battery charger |
| CN102148526A (en) * | 2010-02-05 | 2011-08-10 | 苏州宝时得电动工具有限公司 | Charger |
| CN102148512A (en) * | 2010-02-05 | 2011-08-10 | 苏州宝时得电动工具有限公司 | Charger and charging method thereof |
| CN102148524A (en) * | 2010-02-05 | 2011-08-10 | 苏州宝时得电动工具有限公司 | Charger |
| WO2011095132A1 (en) * | 2010-02-05 | 2011-08-11 | 苏州宝时得电动工具有限公司 | Charger |
| CN103701182A (en) * | 2013-12-16 | 2014-04-02 | 小米科技有限责任公司 | Charger, electronic equipment and charging system |
| CN104993561A (en) * | 2015-07-28 | 2015-10-21 | 徐美琴 | Charging circuit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539336Y (en) * | 2002-04-08 | 2003-03-05 | 王寅生 | Automatic charger with multiple protection function |
| CN200959529Y (en) * | 2006-09-29 | 2007-10-10 | 林志超 | Charger with automatic power-off function |
| CN201247963Y (en) * | 2008-07-08 | 2009-05-27 | 王晓航 | Energy-saving mobile phone charger with auto-power-off function |
| CN201219207Y (en) * | 2008-07-09 | 2009-04-08 | 张兵 | Automatic power-off energy-saving apparatus of charger |
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2009
- 2009-08-14 CN CN200910109411A patent/CN101630859B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102148526A (en) * | 2010-02-05 | 2011-08-10 | 苏州宝时得电动工具有限公司 | Charger |
| CN102148512A (en) * | 2010-02-05 | 2011-08-10 | 苏州宝时得电动工具有限公司 | Charger and charging method thereof |
| CN102148524A (en) * | 2010-02-05 | 2011-08-10 | 苏州宝时得电动工具有限公司 | Charger |
| WO2011095132A1 (en) * | 2010-02-05 | 2011-08-11 | 苏州宝时得电动工具有限公司 | Charger |
| CN102148512B (en) * | 2010-02-05 | 2013-10-16 | 苏州宝时得电动工具有限公司 | Charger and charging method thereof |
| CN102148526B (en) * | 2010-02-05 | 2014-07-02 | 苏州宝时得电动工具有限公司 | Charger |
| CN102148524B (en) * | 2010-02-05 | 2014-12-17 | 苏州宝时得电动工具有限公司 | Charger |
| CN102097841A (en) * | 2010-12-31 | 2011-06-15 | 崧顺电子（深圳）有限公司 | Battery charger |
| CN102097841B (en) * | 2010-12-31 | 2014-12-03 | 崧顺电子（深圳）有限公司 | Battery charger |
| CN103701182A (en) * | 2013-12-16 | 2014-04-02 | 小米科技有限责任公司 | Charger, electronic equipment and charging system |
| CN104993561A (en) * | 2015-07-28 | 2015-10-21 | 徐美琴 | Charging circuit |
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| Publication number | Publication date |
|---|---|
| CN101630859B (en) | 2012-09-05 |
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Granted publication date: 20120905 Termination date: 20190814 |