CN103151818A - Charging indicating system - Google Patents
Charging indicating system Download PDFInfo
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- CN103151818A CN103151818A CN2013100925525A CN201310092552A CN103151818A CN 103151818 A CN103151818 A CN 103151818A CN 2013100925525 A CN2013100925525 A CN 2013100925525A CN 201310092552 A CN201310092552 A CN 201310092552A CN 103151818 A CN103151818 A CN 103151818A
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- indication mechanism
- charging indication
- sampling resistor
- charged
- voltage
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Abstract
The invention discloses a charging indicating system, which is provided with an input end and an output end and comprises a sampling resistor, an ADC (analog to digital converter) voltage collecting module, a MCU (micro control unit) analysis and processing module and an indicating module, wherein the ADC voltage collecting module collects the voltage at two ends of the sampling resistor, the MCU analysis and processing module is used for analyzing and processing the voltage collected by the ADC voltage collecting module, the indicating module is connected with the MCU analysis and processing module and displays the charging state. As shown in Figure 3, the input end is connected with an output end of a charger, and the output end is connected with a mobile terminal to be charged. The charging indicating system has the advantages that economy and practicability are realized, and the applicability is wide.
Description
Technical field
The present invention relates to a kind of indication mechanism, relate in particular to a kind of mobile terminal charging indication mechanism.
Background technology
Charger is commonly referred to as a kind of equipment that alternating current is converted to low-voltage DC.Charger is of many uses in every field, particularly is widely used in the consumer electronics products such as mobile phone, camera at sphere of life.Charger is to adopt power electronics semiconductor device, and voltage and the changeless alternating current of frequency are transformed to galvanic a kind of static ac dc converter device.Under prior art, the charger of most of mobile terminals only has power supply indicator, no matter whether the access of mobile terminal is arranged, as long as charging head inserts supply socket, power supply indicator all can be bright, whether do not accessed the prompting of mobile terminal.And mobile terminal in the market is not because the restriction of structure etc. is provided with charging indicator light on mobile terminal main body, and judges whether the phase just only see in charging the charging icon that shows on screen.But so just there is a problem, in the time of battery over-discharge, when plugging charger, mobile terminal can't show charge information due to cell voltage lower (lower than its operating voltage), this just causes a lot of users to think that mobile terminal damages or charger has damaged by mistake, cause the unnecessary trouble of user, even battery of mobile terminal reaches operating voltage, when can show charge information on screen, also need to go to juice point in the time of charged state need to being checked at every turn, pick up mobile terminal and check, waste time and energy.
Summary of the invention
The object of the invention is to for above-mentioned deficiency, provide a kind of convenient and practical charging indication mechanism, the life that is convenient for people to.
A kind of charging indication mechanism of the present invention, described charging indication mechanism has an input and an output, described charging indication mechanism comprises that a sampling resistor, gathers MCU analysis and processing module and an indicating module that is connected with described MCU analysis and processing module that the ADC voltage acquisition module of sampling resistor both end voltage, voltage that a pair of described ADC voltage acquisition module collects carry out analyzing and processing, described indicating module demonstration charged state.
Described input is connected with a charger output; Described output is connected with a mobile terminal to be charged.
Described indicating module shows the charged state of described mobile terminal to be charged according to the Output rusults of described MCU analysis and processing module, described charged state is a kind of in successful charged state or not successful charged state.
Described indicating module comprises the triode that a diode, an end and current-limiting resistance and a collector electrode of described diode series connection are connected with the described current-limiting resistance other end; Described current-limiting resistance resistance value determines according to the parameter of the light-emitting diode of selecting; The rated current that is no more than Light-Emitting Diode with electric current is limited; The base stage of described triode is connected with described MCU analysis and processing module; The grounded emitter of described triode.
The other end of described diode is connected with described charger output.
Described sampling resistor module resistance value is 1～10 Ω; One end of described sampling resistor is connected with described charger output.
Described MCU analysis and processing module Output rusults is a level, and described level value is a kind of in high level or low level.
According to described low level, the not conducting of described triode, described diode goes out, and described mobile terminal to be charged is not successful charged state; According to described high level, described triode conducting, described diode is lighted, and described mobile terminal to be charged is successful charged state.
Wherein, when described charging indication mechanism and described mobile terminal to be charged were not successfully connected, described sampling resistor was unloaded, and the voltage that described ADC voltage acquisition module collects sampling resistor two ends is the same, voltage difference is 0, and described MCU analysis and processing module Output rusults is low level; When described charging indication mechanism and described mobile terminal to be charged are successfully connected, on described sampling resistor, load is arranged, described ADC voltage acquisition module collects that the voltage at sampling resistor two ends is different, and voltage difference is greater than 0, and described MCU analysis and processing module Output rusults is high level.
Charging indication mechanism of the present invention is economical and practical, and applicability is wide.
Description of drawings
Fig. 1 is the system architecture schematic diagram of charging indication mechanism better embodiment of the present invention;
Fig. 2 is the electrical block diagram of charging indication mechanism better embodiment of the present invention;
Fig. 3 is the use status architecture schematic diagram of charging indication mechanism better embodiment of the present invention.
Embodiment
The present invention in brief, MCU has judged whether that by the comparative voltage size electric current flows through by the voltage at ADC voltage acquisition IC sampling resistor R1 two ends.If sampling resistor R1 both end voltage is consistent, voltage difference is 0, and MCU is judged as charger zero load this moment, and the base stage that the MCU output low level is controlled triode Q1 makes the cut-off of Q1 triode, and charging indicator light D1 extinguishes.
The mobile terminal devices such as mobile phone charge if charger is external, have electric current to flow through sampling resistor R1 this moment, input terminal voltage is higher than output end voltage, sampling resistor R1 both end voltage is poor greater than 0, MCU is judged as testing charger and charges, the base stage that MCU output high level is controlled triode Q1 makes the conducting of Q1 triode, and charging indicator light D1 is bright.
As illustrated in fig. 1 and 2, a kind of charging indication mechanism of the present invention, described charging indication mechanism has an input and an output, described charging indication mechanism comprises that a sampling resistor, gathers MCU analysis and processing module and an indicating module that is connected with described MCU analysis and processing module that the ADC voltage acquisition module of sampling resistor both end voltage, voltage that a pair of described ADC voltage acquisition module collects carry out analyzing and processing, described indicating module demonstration charged state.As shown in Figure 3, described input is connected with a charger output; Described output is connected with a mobile terminal to be charged.
Described indicating module shows the charged state of described mobile terminal to be charged according to the Output rusults of described MCU analysis and processing module, described charged state is a kind of in successful charged state or not successful charged state.
Described indicating module comprises the triode that a diode, an end and current-limiting resistance and a collector electrode of described diode series connection are connected with the described current-limiting resistance other end; Described current-limiting resistance resistance value determines according to the parameter of the light-emitting diode of selecting; The rated current that is no more than Light-Emitting Diode with electric current is limited; The base stage of described triode is connected with described MCU analysis and processing module; The grounded emitter of described triode.
The other end of described diode is connected with described charger output.
Described sampling resistor module resistance value is 1～10 Ω; One end of described sampling resistor is connected with described charger output.
Described MCU analysis and processing module Output rusults is a level, and described level value is a kind of in high level or low level.
According to described low level, the not conducting of described triode, described diode goes out, and described mobile terminal to be charged is not successful charged state; According to described high level, described triode conducting, described diode is lighted, and described mobile terminal to be charged is successful charged state.
Wherein, when described charging indication mechanism and described mobile terminal to be charged were not successfully connected, described sampling resistor was unloaded, and the voltage that described ADC voltage acquisition module collects sampling resistor two ends is the same, voltage difference is 0, and described MCU analysis and processing module Output rusults is low level; When described charging indication mechanism and described mobile terminal to be charged are successfully connected, on described sampling resistor, load is arranged, described ADC voltage acquisition module collects that the voltage at sampling resistor two ends is different, and voltage difference is greater than 0, and described MCU analysis and processing module Output rusults is high level.
Charging indication mechanism of the present invention is economical and practical, and applicability is wide.User's mobile phone that need not to leaf through is just known whether mobile terminal to be charged is normally connected and is entered charged state, has avoided misoperation, has also saved the time, has facilitated people's life.
The above; only be the better embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (9)
- One kind the charging indication mechanism, it is characterized in that, described charging indication mechanism has an input and an output, described charging indication mechanism comprises that a sampling resistor, gathers MCU analysis and processing module and an indicating module that is connected with described MCU analysis and processing module that the ADC voltage acquisition module of sampling resistor both end voltage, voltage that a pair of described ADC voltage acquisition module collects carry out analyzing and processing, described indicating module demonstration charged state.
- 2. charging indication mechanism according to claim 1, is characterized in that,Described input is connected with a charger output; Described output is connected with a mobile terminal to be charged.
- 3. charging indication mechanism according to claim 2, is characterized in that,Described indicating module shows the charged state of described mobile terminal to be charged according to the Output rusults of described MCU analysis and processing module, described charged state is a kind of in successful charged state or not successful charged state.
- 4. charging indication mechanism according to claim 3, is characterized in that,Described indicating module comprises the triode that a diode, an end and current-limiting resistance and a collector electrode of described diode series connection are connected with the described current-limiting resistance other end;Described current-limiting resistance resistance value determines according to the parameter of the light-emitting diode of selecting; The rated current that is no more than Light-Emitting Diode with electric current is limited;The base stage of described triode is connected with described MCU analysis and processing module;The grounded emitter of described triode.
- 5. charging indication mechanism according to claim 4, is characterized in that,The other end of described diode is connected with described charger output.
- 6. charging indication mechanism according to claim 5, is characterized in that,Described sampling resistor module resistance value is 1～10 Ω; One end of described sampling resistor is connected with described charger output.
- 7. to require 6 described charging indication mechanism systems according to right, it is characterized in that,Described MCU analysis and processing module Output rusults is a level, and described level value is a kind of in high level or low level.
- 8. charging indication mechanism according to claim 7, is characterized in that,According to described low level, the not conducting of described triode, described diode goes out, and described mobile terminal to be charged is not successful charged state;According to described high level, described triode conducting, described diode is lighted, and described mobile terminal to be charged is successful charged state.
- 9. charging indication mechanism according to claim 8, is characterized in that,Described charging indication mechanism and described mobile terminal to be charged are successfully connected, and described sampling resistor is unloaded, and the voltage that described ADC voltage acquisition module collects sampling resistor two ends is the same, and voltage difference is 0, and described MCU analysis and processing module Output rusults is low level;Described charging indication mechanism and described mobile terminal to be charged are successfully connected, on described sampling resistor, load is arranged, described ADC voltage acquisition module collects that the voltage at sampling resistor two ends is different, and voltage difference is greater than 0, and described MCU analysis and processing module Output rusults is high level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100925525A CN103151818A (en) | 2013-03-21 | 2013-03-21 | Charging indicating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100925525A CN103151818A (en) | 2013-03-21 | 2013-03-21 | Charging indicating system |
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| Publication Number | Publication Date |
|---|---|
| CN103151818A true CN103151818A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100925525A Pending CN103151818A (en) | 2013-03-21 | 2013-03-21 | Charging indicating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201734A (en) * | 2014-08-13 | 2014-12-10 | 惠州Tcl移动通信有限公司 | Charging system, charging bearing device and wearing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421955A (en) * | 2001-11-22 | 2003-06-04 | 日立工机株式会社 | Battery group for power supply of portable equipment |
| JP2005341773A (en) * | 2004-05-31 | 2005-12-08 | Sanyo Electric Co Ltd | Battery charger |
| US20080012533A1 (en) * | 2005-09-30 | 2008-01-17 | Guang Huang T | Rapid charge lithium ion battery charger |
| CN202309135U (en) * | 2011-10-26 | 2012-07-04 | 张清连 | Lithium battery charging prompter |
| CN202535574U (en) * | 2012-03-30 | 2012-11-14 | 上海市电力公司 | Charging indication lamp circuit |
| CN102856940A (en) * | 2011-06-30 | 2013-01-02 | 鸿富锦精密工业（深圳）有限公司 | Electronic device and charger capable of indicating battery charging state |
-
2013
- 2013-03-21 CN CN2013100925525A patent/CN103151818A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421955A (en) * | 2001-11-22 | 2003-06-04 | 日立工机株式会社 | Battery group for power supply of portable equipment |
| JP2005341773A (en) * | 2004-05-31 | 2005-12-08 | Sanyo Electric Co Ltd | Battery charger |
| US20080012533A1 (en) * | 2005-09-30 | 2008-01-17 | Guang Huang T | Rapid charge lithium ion battery charger |
| CN102856940A (en) * | 2011-06-30 | 2013-01-02 | 鸿富锦精密工业（深圳）有限公司 | Electronic device and charger capable of indicating battery charging state |
| CN202309135U (en) * | 2011-10-26 | 2012-07-04 | 张清连 | Lithium battery charging prompter |
| CN202535574U (en) * | 2012-03-30 | 2012-11-14 | 上海市电力公司 | Charging indication lamp circuit |
Non-Patent Citations (1)
| Title |
|---|
| 郭光立: "具有电压指示的蓄电池保护电路", 《家庭电子》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201734A (en) * | 2014-08-13 | 2014-12-10 | 惠州Tcl移动通信有限公司 | Charging system, charging bearing device and wearing equipment |
| CN104201734B (en) * | 2014-08-13 | 2017-08-11 | 惠州Tcl移动通信有限公司 | Charging system, charging bogey and wearable device |
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Application publication date: 20130612 |