CN201113516Y - Emergency charger for mobile telephone charged by batteries - Google Patents
Emergency charger for mobile telephone charged by batteries Download PDFInfo
- Publication number
- CN201113516Y CN201113516Y CNU2007201764910U CN200720176491U CN201113516Y CN 201113516 Y CN201113516 Y CN 201113516Y CN U2007201764910 U CNU2007201764910 U CN U2007201764910U CN 200720176491 U CN200720176491 U CN 200720176491U CN 201113516 Y CN201113516 Y CN 201113516Y
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- circuit
- voltage
- batteries
- battery
- mobile phone
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- Expired - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an emergency charger for a mobile phone charged by a battery, comprising a direct current boosted circuit, a voltage regulator circuit and a charging indication circuit, which are connected one another in series, wherein, the direct current boosted circuit has an input end connected with three batteries which are connected in series, and is provided with an MC 34063 direct current boosting chip; the voltage regulator circuit is provided with a triode and a TL431 precision voltage regulator module which are connected with each other in series. The emergency charger for the mobile phone has a simple structure and low cost, can charge a lithium battery of the mobile phone by using three batteries at quick charging speed, and is particularly applicable to outdoors and long journeys.
Description
Technical field
The utility model relates to a kind of emergent charger for cell phone with battery charge, can charge to mobile phone by battery.
Background technology
At present, the stand-by time of mobile phone when normal the use was generally about 2-5 days, just need charge to it by mains supply then.But (as in the open air, train first-class) just can't use charger for mobile phone to charge under the situation of no 220V power supply.For this reason, the someone has developed the charger for mobile phone that charges with battery, this charger cost height, and generally more than 2,300 yuan, charging rate is slow, and the scope of application is limited.
The utility model content
The purpose of this utility model is to provide a kind of emergent charger for cell phone with battery charge, and it is simple in structure, and cost is very cheap, uses three batteries just can be to cell-phone charging, and charging rate is fast.
The purpose of this utility model is achieved in that a kind of emergent charger for cell phone with battery charge, comprise the DC voltage booster circuit, voltage stabilizing circuit and the charging indication that are cascaded mutually, the input of DC voltage booster circuit links to each other with the battery that three joints are cascaded, and DC voltage booster circuit is equipped with a MC34063 DC boosting chip; Voltage stabilizing circuit is equipped with a triode and the accurate regulator block of TL431 that is cascaded mutually.
The utility model circuit structure is simple, wherein used DC boosting chip and accurate regulator block cost are all very cheap, only be several yuans, voltage can reach 10V after using three batteries to boost by the DC boosting chip, again through just exporting the cell-phone charging voltage of 4.2 ± 0.05V after the voltage stabilizing circuit voltage stabilizing.So just can under the situation of civil power cellular li-ion battery be charged not having, charging rate is fast, is particularly suitable in the open air and uses during long-distance travel.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a circuit diagram of the present utility model.
Embodiment
A kind of emergent charger for cell phone with battery charge as shown in drawings, comprises the DC voltage booster circuit, voltage stabilizing circuit and the charging indication that are cascaded mutually.The input of DC voltage booster circuit links to each other with the battery that three joints are cascaded, and DC voltage booster circuit is equipped with the MC34063 DC boosting chip of a DC/DC, boosts through this DC boosting chip, and the output terminals A of DC voltage booster circuit, B terminal voltage can reach 10V; Voltage stabilizing circuit is equipped with a S8050 triode and the accurate regulator block of TL431 that is cascaded mutually, and the collector electrode of this triode is connected the A end of DC voltage booster circuit, and the base stage of triode links to each other with accurate regulator block.The cell-phone charging voltage of the exportable 4.2 ± 0.05V of this voltage stabilizing circuit.
Charging indication is made up of LM358 voltage comparator and light-emitting diode D2, D3, D4.It is 2.09V that adjusting precision resistance R9 makes 3 pin magnitudes of voltage of LM358 voltage comparator.After connecting, circuit is lower than 4.20V because of lithium ion battery side voltage.The voltage sample circuit of being made up of R10, R11 is lower than 2.09V voltage in the 2 pin generation of LM358, the 1 pin output high level of LM358, and the luminous indicating circuit of light-emitting diode D3 charges.When Li-Ion rechargeable battery voltage is full of when reaching 4.20V, the 2 pin current potentials of LM358 are higher than 3 pin current potentials, this moment LM358 1 pin output low level, light-emitting diode D2 is luminous, D3 extinguishes, pilot cell is full of.
When 3 joint series connected battery voltages drop to 2.7V, forming voltage sample circuit by R1, R2 will obtain on 5 pin that magnitude of voltage is placed on LM358 and compare with the 6 pin current potentials of LM358 that (it is identical with 3 pin current potentials to annotate 6 pin current potentials, be 2.09V), when 3 batteries series voltages are higher than 2.7V, 5 pin current potentials are lower than 6 pin current potentials, 7 pin output low levels, light-emitting diode D4 does not work.Otherwise when battery terminal voltage drops to 2.7V when following, 5 pin current potentials are higher than 6 pin current potentials, 7 pin output high level, and the luminous pilot cell voltage of light-emitting diode D4 is low, needs change battery.
The charging plug that the output of charging indication connects is the general-purpose charging plug, can enlarge the scope of application of the present utility model like this, helps promoting.
Claims (2)
1, a kind of emergent charger for cell phone with battery charge, comprise the DC voltage booster circuit, voltage stabilizing circuit and the charging indication that are cascaded mutually, it is characterized in that: the input of DC voltage booster circuit links to each other with the battery that three joints are cascaded, and DC voltage booster circuit is equipped with a MC34063 DC boosting chip; Voltage stabilizing circuit is equipped with a triode and the accurate regulator block of TL431 that is cascaded mutually.
2, the emergent charger for cell phone with battery charge according to claim 1, it is characterized in that: the charging plug that the output of charging indication connects is the general-purpose charging plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201764910U CN201113516Y (en) | 2007-09-10 | 2007-09-10 | Emergency charger for mobile telephone charged by batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201764910U CN201113516Y (en) | 2007-09-10 | 2007-09-10 | Emergency charger for mobile telephone charged by batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113516Y true CN201113516Y (en) | 2008-09-10 |
Family
ID=39965261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201764910U Expired - Fee Related CN201113516Y (en) | 2007-09-10 | 2007-09-10 | Emergency charger for mobile telephone charged by batteries |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113516Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789615B (en) * | 2010-01-09 | 2012-08-29 | 黄宇嵩 | Outfield special constant-current power compensating device for model airplane battery |
| CN103701172A (en) * | 2013-12-27 | 2014-04-02 | 普天新能源车辆技术有限公司 | Charging gun |
| CN104734297A (en) * | 2015-03-31 | 2015-06-24 | 无锡市崇安区科技创业服务中心 | Battery charging control device based on voltage-stabilizing circuit |
-
2007
- 2007-09-10 CN CNU2007201764910U patent/CN201113516Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789615B (en) * | 2010-01-09 | 2012-08-29 | 黄宇嵩 | Outfield special constant-current power compensating device for model airplane battery |
| CN103701172A (en) * | 2013-12-27 | 2014-04-02 | 普天新能源车辆技术有限公司 | Charging gun |
| CN103701172B (en) * | 2013-12-27 | 2016-08-17 | 普天新能源车辆技术有限公司 | A kind of charging gun |
| CN104734297A (en) * | 2015-03-31 | 2015-06-24 | 无锡市崇安区科技创业服务中心 | Battery charging control device based on voltage-stabilizing circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080910 |