CN101630859B - Mobile terminal charger - Google Patents

Mobile terminal charger Download PDF

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Publication number
CN101630859B
CN101630859B CN200910109411A CN200910109411A CN101630859B CN 101630859 B CN101630859 B CN 101630859B CN 200910109411 A CN200910109411 A CN 200910109411A CN 200910109411 A CN200910109411 A CN 200910109411A CN 101630859 B CN101630859 B CN 101630859B
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CN
China
Prior art keywords
portable terminal
terminal
charging
charger
alternating
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN200910109411A
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Chinese (zh)
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CN101630859A (en
Inventor
首召兵
彭原
郭建
刘建伟
龙逸
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Shenzhen H&T Intelligent Control Co Ltd
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Shenzhen H&T Intelligent Control Co Ltd
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Priority to CN200910109411A priority Critical patent/CN101630859B/en
Publication of CN101630859A publication Critical patent/CN101630859A/en
Application granted granted Critical
Publication of CN101630859B publication Critical patent/CN101630859B/en
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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

A kind of portable terminal charger
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, after the battery electric quantity in the portable terminal uses, and can be with re-using after its charging.Usually can be through 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 above that, 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 that the present invention will solve is, still has certain power to consume defective to the above-mentioned of prior art when the standby, and a kind of portable terminal charger that when standby, does not have power consumption is provided.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of portable terminal charger; Comprise and convert alternating current on the electrical network into be suitable for charging voltage transformer; Be connected the charging module that is used on said transformer secondary output one end said portable terminal charging; The output that connects said charging module is connected on the charging terminal of said portable terminal; Said transformer secondary output other end ground connection;, also comprise first alternating-current switch that is serially connected on the said interchange phase line, the control module that is used to control the said first alternating-current switch break-make, for the built-in power of said control module power supply and when said portable terminal charger is connected with portable terminal, make said charging module, control module work, thereby make the jockey of the first alternating-current switch conducting.
In portable terminal charger of the present invention, said transformer secondary output end of the same name is connected with said charging module, and its non-same polarity is connected with ground.
In portable terminal charger of the present invention, said jockey comprises first contact, second contact that is connected with ground connection one end of said transformer secondary output that is connected with said battery of mobile terminal negative pole and is arranged on when it is connected with ground on the said control module current supply circuit makes said control module get the 3rd contact that the electrician does; When said portable terminal was connected said portable terminal charger, said first contact, second contact and the 3rd contact interconnected.
In portable terminal charger of the present invention, said the first terminal, second terminal and the 3rd terminal through with portable terminal that said charger is connected on contact chip be communicated with.
In portable terminal charger of the present invention, said control module comprises photoelectrical coupler, and the positive pole of the light-emitting tube of said photoelectrical coupler is connected said built-in power anode, and the negative pole of said light-emitting tube is connected with said the 3rd contact; Its light receiving tube one end is electrically connected with the said input zero line that exchanges, and the other end is connected the control of said first alternating-current switch and extremely goes up.
In portable terminal charger of the present invention; Said first alternating-current switch comprises controllable silicon; The said silicon controlled control utmost point is connected with light receiving tube one end of said photoelectrical coupler, and its switch terminals is connected to said alternating current phase line and said primary one end.
In portable terminal charger of the present invention, said built-in power comprises rechargeable battery, and said rechargeable battery is anodal to be connected with said control module power end, and its negative pole is connected with said transformer secondary output non-same polarity., said first alternating-current switch comprises controllable silicon, and the said silicon controlled control utmost point is connected with light receiving tube one end of said photoelectrical coupler, and its switch terminals is connected to said alternating current phase line and said primary one end.
In portable terminal charger of the present invention, said built-in power comprises rechargeable battery, and said rechargeable battery is anodal to be connected with said control module power end, and its negative pole is connected with said transformer secondary output non-same polarity.
In portable terminal charger of the present invention, also comprise the hand switch that is attempted by on said first alternating-current switch.
In portable terminal charger of the present invention, said charging module comprises said transformer secondary output alternating current is converted into direct current and is provided to the rectification unit of said charhing unit.
In portable terminal charger of the present invention, said charging module comprises said transformer secondary output alternating current is converted into direct current and is provided to the rectification unit of said charhing unit.
In portable terminal charger of the present invention, said charging module comprises said transformer secondary output alternating current is converted into direct current and is provided to the rectification unit of said charhing unit.
The portable terminal charger of embodiment of the present invention has following beneficial effect: owing in the charger ac circuit, be serially connected with first alternating-current switch, 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 broke off owing to the disconnection of first alternating-current switch, therefore, when charger is not connected with portable terminal, did not have power consumption.
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 said embodiment.
Embodiment
To combine accompanying drawing that the embodiment of the invention is described further below.
As shown in Figure 1; In a kind of portable terminal charger of the present invention embodiment; Said 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 through 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, its two switch terminals are broken off or are 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 said 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 broken off, and made built-in power 4 anodes and above-mentioned charging terminal 10 break off, 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 was fallen down to the ground by connection, control module 3 just by built-in power 4 power supplies, was started working; The 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 FETs.Above-mentioned charging terminal 10, the first terminal 11, second terminal 12 and the 3rd terminal 13 are arranged on the connector, this connector when above-mentioned charger is connected with portable terminal, be used for portable terminal on connector cooperate, connect 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 GND of portable terminal.Simultaneously; The first terminal 11, second terminal 12 and the 3rd terminal 13 link together through 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 the electrician and does.
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 through two switch terminals of controllable silicon Q1, on two switch terminals of above-mentioned controllable silicon Q1, also is 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 through 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 supplied power 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 said supply voltage is lower than set point, export control signal, the central processing unit that makes FET Q2 conducting; The source electrode of this FET 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 following: 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, make photoelectrical coupler U1 operate as normal as the battery (BT1) of internal electric source; 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) break off each other, 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 FET 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 FET 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, accomplish mobile phone is charged normal management.
The above embodiment has only expressed several kinds of execution modes 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 under the prerequisite that does not break away from the present invention's design, 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 accompanying claims.

Claims (8)

1. portable terminal charger; Comprise and convert alternating current on the electrical network into be suitable for charging voltage transformer; Be connected the charging module that is used on said transformer secondary output one end said portable terminal charging; The output of said charging module is connected on the charging terminal of said portable terminal; Said transformer secondary output other end ground connection; It is characterized in that, also comprise be serially connected in first alternating-current switch that exchanges on the phase line, the control module that is used to control the said first alternating-current switch break-make, for the built-in power of said control module power supply and when said portable terminal charger is connected with portable terminal, make said charging module, control module work, thereby make the jockey of the first alternating-current switch conducting;
Said jockey comprises the first terminal, second terminal that is connected with ground connection one end of said transformer secondary output that is connected with said battery of mobile terminal negative pole and is arranged on when it is connected with ground on the said control module current supply circuit makes said control module get the 3rd terminal that the electrician does; When said portable terminal was connected said portable terminal charger, said the first terminal, second terminal and the 3rd terminal interconnected.
2. portable terminal charger according to claim 1 is characterized in that, said the first terminal, second terminal and the 3rd terminal through with portable terminal that said charger is connected on contact chip be communicated with.
3. portable terminal charger according to claim 2; It is characterized in that; Said control module comprises photoelectrical coupler, and the positive pole of the light-emitting tube of said photoelectrical coupler is connected said built-in power anode, and the negative pole of said light-emitting tube is connected with said the 3rd terminal; Its light receiving tube one end is electrically connected with exchanging the input zero line, and the other end is connected the control of said first alternating-current switch and extremely goes up.
4. portable terminal charger according to claim 3; It is characterized in that; Said first alternating-current switch comprises controllable silicon, and the said silicon controlled control utmost point is connected with light receiving tube one end of said photoelectrical coupler, and its switch terminals is connected to alternating current phase line and said primary one end.
5. portable terminal charger according to claim 4 is characterized in that said built-in power is a rechargeable battery, and said rechargeable battery is anodal to be connected its minus earth with said control module power end.
6. portable terminal charger according to claim 5; It is characterized in that; Also comprise the charging device that is used to the charging of said built-in power, said charging device comprises and is used to central controller that detects the built-in power magnitude of voltage and export control signal and the FET that under said control signal, is switched on or switched off the output of said built-in power anode and said charging module.
7. according to any described portable terminal charger of claim 1-6, it is characterized in that, also comprise the hand switch that is attempted by on said first alternating-current switch.
8. according to any described portable terminal charger of claim 1-6, it is characterized in that said charging module comprises said transformer secondary output alternating current is converted into direct current and is provided to the rectification unit of said charhing unit.
CN200910109411A 2009-08-14 2009-08-14 Mobile terminal charger Expired - Fee Related CN101630859B (en)

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Application Number Priority Date Filing Date Title
CN200910109411A CN101630859B (en) 2009-08-14 2009-08-14 Mobile terminal charger

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Application Number Priority Date Filing Date Title
CN200910109411A CN101630859B (en) 2009-08-14 2009-08-14 Mobile terminal charger

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CN101630859B true CN101630859B (en) 2012-09-05

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102148526B (en) * 2010-02-05 2014-07-02 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
CN102148524B (en) * 2010-02-05 2014-12-17 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
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

Citations (4)

* Cited by examiner, † Cited by third party
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
CN201219207Y (en) * 2008-07-09 2009-04-08 张兵 Automatic power-off energy-saving apparatus of charger
CN201247963Y (en) * 2008-07-08 2009-05-27 王晓航 Energy-saving mobile phone charger with auto-power-off function

Patent Citations (4)

* Cited by examiner, † Cited by third party
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP特开2003-32332A 2003.01.31

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