CN102082868A - Mobile phone abnormal temperature charging control alarm system - Google Patents
Mobile phone abnormal temperature charging control alarm system Download PDFInfo
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- CN102082868A CN102082868A CN2010105906175A CN201010590617A CN102082868A CN 102082868 A CN102082868 A CN 102082868A CN 2010105906175 A CN2010105906175 A CN 2010105906175A CN 201010590617 A CN201010590617 A CN 201010590617A CN 102082868 A CN102082868 A CN 102082868A
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Abstract
The invention discloses a mobile phone abnormal temperature charging control alarm system, which comprises a baseband chip, an analogue switch, an abnormality alarm module and a temperature control module arranged in a mobile phone body, wherein the abnormality alarm module comprises a light-emitting diode (LED) lamp and a current-limiting resistor which are connected in series; the temperature control module comprises a high temperature comparison module and a low temperature comparison module which are connected in parallel to a NOR gate; and a VIN pin of the analog switch is connected with the baseband chip, the VOUT pin is connected with a mobile phone cell switch, and the CE pin is connected with a node between the abnormality alarm module and the temperature control module. The mobile phone abnormal temperature charging control alarm system can be completely controlled by hardware, the mobile phone is normally charged in a specific temperature range, and in the abnormal temperature state, the charging system is cut off by the hardware, the potential danger and harm to mobile phone cell and circuit are eliminated, and an alarm signal is sent.
Description
Technical field
The present invention relates to cell phone apparatus, the non-normal temperature charging of particularly a kind of mobile phone control warning system.
Background technology
Mobile phone is the invention of American I T giant Motorola Inc. the earliest, using the widest in the world at present is so-called second generation mobile phone (2G), based on the GSM standard in Europe and the CDMA of the U.S., also have the IDEN network formats of Motorola, the PDC that Japan Area uses etc. in addition.They all are digital standards, except can carrying out voice communication, can also receive and dispatch note, WAP (wireless application protocol) etc.In the China's Mainland and Taiwan the most universal with GSM, the CDMA mobile phone is also very popular.Present whole industry is in third generation mobile phone (3G) transition process.
Telephone keypad part mobile phone has also comprised more function such as PDA, game machine, MP3, camera, photography, recording, GPS, online except typical telephony feature, the oriented trend that has the PDA development of cell-phone function.The mouthpiece of phone, earpiece and corresponding microphone, receiver all are contained on the single handle.Being once called as and being mobile phone, portable, mobile telephone, is telephone terminal portable, that can move in a big way.
Present existing mobile phone; nearly all do not consider the charging safety under the temperature anomaly environment; perhaps only with the built-in simple OTP control of chip internal; and utilize software to go to realize; and the charging control problem when generally not considering temperature low excessively (for example subzero 20 degrees centigrade); if when solar recharging; temperature is crossed when hanging down; charging effect can be very low, on the contrary to battery of mobile phone and internal circuit by damage, this patent can guarantee to allow mobile phone charge normal in the time of subzero 20 degrees centigrade to 60 degrees centigrade; when temperature during not in this scope; charging ends, and makes the unusual indicator light of charging bright, sends alarm signal.And these processes all are to be realized by hardware fully, do not take the software resource space.
In view of this, those skilled in the art provide the non-normal temperature charging of a kind of mobile phone control warning system at the problems referred to above.
Summary of the invention
The invention provides the non-normal temperature charging of a kind of mobile phone control warning system, overcome the difficulty of prior art, can finish by hardware controls fully, in specific temperature range, just allow mobile phone charge normal, and under unusual temperature state, cut off charging system by hardware, gets rid of potential danger and, and send alarm signal (the LED lamp is bright) the harm of battery of mobile phone and circuit.
The present invention adopts following technical scheme:
The invention provides the non-normal temperature charging of a kind of mobile phone control warning system, comprise the baseband chip, analog switch, abnormal alarm module and the temperature control modules that are arranged in the mobile phone body;
Described abnormal alarm module comprises the LED lamp and the current-limiting resistance of series connection, and described temperature control modules comprises high temperature comparison module and the low temperature comparison module that is connected in parallel on the NOR gate;
The VIN pin of described analog switch connects described baseband chip, and the VOUT pin connects battery of mobile phone and closes, and the CE pin connects the node between abnormal alarm module pass and the temperature control modules pass.
Preferably, described high temperature comparison module is output as low temperature comparator for to be output as high level when temperature is higher than 60 degrees centigrade when temperature is lower than 60 degrees centigrade.
Preferably, described low temperature comparison module is output as high level for being lower than subzero 20 when spending when temperature, when temperature is higher than subzero 20 when spending, is output as low temperature comparator.
Owing to adopted above-mentioned technology, compared with prior art, the non-normal temperature charging of mobile phone of the present invention control warning system can be finished by hardware controls fully, in specific temperature range, just allow mobile phone charge normal, and under unusual temperature state, cut off charging system by hardware, gets rid of potential danger and, and send alarm signal (the LED lamp is bright) the harm of battery of mobile phone and circuit.
Further specify the present invention below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the circuit theory diagrams of the non-normal temperature charging of mobile phone of the present invention control warning system.
Embodiment
Introduce a kind of specific embodiment of the present invention below by Fig. 1.
As shown in Figure 1, the non-normal temperature charging of a kind of mobile phone of the present invention control warning system comprises the baseband chip 1, analog switch 2, abnormal alarm module 4 and the temperature control modules 5 that are arranged in the mobile phone body; Described abnormal alarm module 4 comprises the LED lamp 6 and the current-limiting resistance 7 of series connection, and described temperature control modules 5 comprises high temperature comparison module 8 and the low temperature comparison module 9 that is connected in parallel on the NOR gate 10; The VIN pin of described analog switch 2 connects described baseband chip, and the VOUT pin connects battery of mobile phone and closes 3, and the CE pin connects the node between abnormal alarm module pass 4 and the temperature control modules pass 5.
Described high temperature comparison module 8 is output as low temperature comparator for to be output as high level when temperature is higher than 60 degrees centigrade when temperature is lower than 60 degrees centigrade.Described low temperature comparison module 9 is output as high level for being lower than subzero 20 when temperature when spending, and when temperature is higher than subzero 20 when spending, is output as low temperature comparator.
Actual operating position of the present invention is as follows:
The present invention is a kind of cell-phone charging control circuit, and it is made up of an analog switch, an abnormal alarm module and a temperature anomaly control module.The analog switch string is on the cell-phone charging main line, and it controls the folding of this switch by a CE chip select pin, and CE is effectively high, analog switch closure during high level; During low level, analog switch is opened.Alarm module is made up of LED lamp and a current-limiting resistance of a redness, the anodal termination Vchg of LED lamp, negative pole end meets CE by current-limiting resistance, when the CE end when high, lamp does not work; When CE when low, the expression charging temperature is unusual, red LED lamp is bright, sends alarm signal.The temperature anomaly control module is made up of two temperature comparators and a NOR gate, and the cryogenic temperature comparator is output as high level when temperature is lower than subzero 20 when spending, and when temperature is higher than subzero 20 when spending, is output as low.The high-temperature temperature comparator is output as high level when temperature is higher than 60 degrees centigrade, be output as low when temperature is lower than 60 degrees centigrade.The input of the output termination NOR gate of two temperature comparators, the CE end of the output termination analog switch of NAND gate.Like this when temperature normal (20--60 degree centigrade), it is low that two temperature comparators all are output as, and NAND gate is output as height, and this moment, CE be high, the analog switch conducting, and red LED lamp does not work, and charges this moment and normally carries out; When temperature anomaly, two temperature comparators export high level for a moment, NOR gate is output as lowly like this, this moment, CE was low, and analog switch is opened, charging circuit is disconnected, charging can not be carried out, red LED lamp is bright, sends the temperature anomaly signal.
The present invention is when cell-phone charging during at the abnormal temperature environment, two temperature comparators export high level for a moment, it is low to cause NOR gate to be output as, CE is low, this moment, analog switch was opened, charging circuit is disconnected, red LED lamp is bright simultaneously, sends abnormal signal.When mobile phone charged under the normal temperature environment, two temperature comparators are output low level all, causes NOR gate to be output as height, and CE is high, and this moment, analog switch cut out, the charging circuit conducting, and red LED lamp does not work, the cell phone charging circuit operate as normal.
In summary, owing to adopted above-mentioned technology, the non-normal temperature charging of mobile phone of the present invention control warning system can be finished by hardware controls fully, in specific temperature range, just allow mobile phone charge normal, and under unusual temperature state, cut off charging system by hardware, gets rid of potential danger and, and send alarm signal (the LED lamp is bright) the harm of battery of mobile phone and circuit.
Above-described embodiment only is used to illustrate technological thought of the present invention and characteristics, its purpose is to make those skilled in the art can understand content of the present invention and implements according to this, can not only limit claim of the present invention with present embodiment, be all equal variation or modifications of doing according to disclosed spirit, still drop in the claim of the present invention.
Claims (3)
1. the non-normal temperature charging of a mobile phone control warning system is characterized in that: comprise the baseband chip (1), analog switch (2), abnormal alarm module (4) and the temperature control modules (5) that are arranged in the mobile phone body;
Described abnormal alarm module (4) comprises the LED lamp (6) and the current-limiting resistance (7) of series connection, and described temperature control modules (5) comprises high temperature comparison module (8) and the low temperature comparison module (9) that is connected in parallel on the NOR gate (10);
The VIN pin of described analog switch (2) connects described baseband chip, and the VOUT pin connects battery of mobile phone and closes (3), and the CE pin connects the node between abnormal alarm module pass (4) and the temperature control modules pass (5).
2. the non-normal temperature charging of mobile phone as claimed in claim 1 control warning system, it is characterized in that: described high temperature comparison module (8) is output as low temperature comparator for to be output as high level when temperature is higher than 60 degrees centigrade when temperature is lower than 60 degrees centigrade.
3. the non-normal temperature charging of mobile phone as claimed in claim 1 or 2 control warning system, it is characterized in that: described low temperature comparison module (9) is for being lower than subzero 20 when spending when temperature, be output as high level,, be output as low temperature comparator when temperature is higher than subzero 20 when spending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105906175A CN102082868A (en) | 2010-12-15 | 2010-12-15 | Mobile phone abnormal temperature charging control alarm system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105906175A CN102082868A (en) | 2010-12-15 | 2010-12-15 | Mobile phone abnormal temperature charging control alarm system |
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| CN102082868A true CN102082868A (en) | 2011-06-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694913A (en) * | 2012-05-14 | 2012-09-26 | 广东欧珀移动通信有限公司 | Implementing method for carrying out alarming on abnormal temperature inside mobile phone |
| CN107565639A (en) * | 2017-09-15 | 2018-01-09 | 维沃移动通信有限公司 | A kind of charging reminding method and mobile terminal |
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| KR20050048364A (en) * | 2003-11-19 | 2005-05-24 | 엘지전자 주식회사 | Apparatus for protecting battery |
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| EP2043224A2 (en) * | 2007-09-27 | 2009-04-01 | Samsung SDI Co., Ltd. | Protection circuit for a battery pack |
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| CN201616664U (en) * | 2010-01-11 | 2010-10-27 | 李琪 | Mobile phone charger overheating alarm and protection device |
| CN201928343U (en) * | 2010-12-15 | 2011-08-10 | 上海华勤通讯技术有限公司 | Non-normal-temperature charging control alarming system of mobile phone |
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2010
- 2010-12-15 CN CN2010105906175A patent/CN102082868A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2150659Y (en) * | 1993-03-29 | 1993-12-22 | 潘峰 | Quick-acting charger for battery |
| KR20050048364A (en) * | 2003-11-19 | 2005-05-24 | 엘지전자 주식회사 | Apparatus for protecting battery |
| CN1812220A (en) * | 2005-01-26 | 2006-08-02 | 乐金电子(中国)研究开发中心有限公司 | Mobile telephone battery charging controlling method and apparatus thereof |
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| US20090051326A1 (en) * | 2007-08-24 | 2009-02-26 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd . | Battery overheating protection circuit |
| EP2043224A2 (en) * | 2007-09-27 | 2009-04-01 | Samsung SDI Co., Ltd. | Protection circuit for a battery pack |
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| CN201616664U (en) * | 2010-01-11 | 2010-10-27 | 李琪 | Mobile phone charger overheating alarm and protection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694913A (en) * | 2012-05-14 | 2012-09-26 | 广东欧珀移动通信有限公司 | Implementing method for carrying out alarming on abnormal temperature inside mobile phone |
| CN107565639A (en) * | 2017-09-15 | 2018-01-09 | 维沃移动通信有限公司 | A kind of charging reminding method and mobile terminal |
| CN107565639B (en) * | 2017-09-15 | 2020-07-14 | 维沃移动通信有限公司 | Charging reminding method and mobile terminal |
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Application publication date: 20110601 |