CN102214941A - Power source management system and portable electronic device with same - Google Patents
Power source management system and portable electronic device with same Download PDFInfo
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- CN102214941A CN102214941A CN2010101437652A CN201010143765A CN102214941A CN 102214941 A CN102214941 A CN 102214941A CN 2010101437652 A CN2010101437652 A CN 2010101437652A CN 201010143765 A CN201010143765 A CN 201010143765A CN 102214941 A CN102214941 A CN 102214941A
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- controlling chip
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Abstract
The invention relates to a power source management system which comprises a power source device, a detection module and an output power control module, wherein the power source device comprises a battery and a power source input module; the detection module comprises a charging control chip; the charging control chip is electrically connected with the battery, the power source input module and the output power control module; the charging control chip controls the charging current of the battery and detects the output current of the power source device; and the power source device corresponding to the charging control chip is also respectively provided with an over-current protection point, and when the current output by the power source device is detected to exceed the corresponding over-current protection point, the charging control chip can be used for reducing the charging current of the battery or the output power control module can be used for reducing the working frequency of the portable electronic device so as to reduce the output current of the battery or the power source input module. The invention also provides a portable electronic device with the power source management system.
Description
Technical field
The present invention relates to a kind of power-supply management system, relate in particular to a kind of portable electron device that is used for the power-supply management system of portable electron device such as hand-held computer and has this power-supply management system.
Background technology
The supply unit of portable electron devices such as hand-held computer generally comprises battery and the power supply output module that himself carries, and makes described hand-held computer to provide power supply by battery, also can insert external power source by Power Entry Module.Along with people are more and more higher to the performance requirement of hand-held computer; element work desired power such as core processor that described hand-held computer is built-in and display chip are also more and more higher; and all be in heavily loaded situation following time when elements such as the hard disk of hand-held computer, CD-ROM drive, interfaces; described supply unit may cause temperature to cross high reason under the high power work state to enter the self-protection pattern automatically owing to bigger energy load being provided for a long time or being in for a long time, stops described laptop computer power supply suddenly and causes laptop computer to shut down automatically.
Summary of the invention
In view of above situation, be necessary to provide a kind of power-supply management system that makes the supply unit normal power supply of hand-held computer.
In addition, also be necessary to provide a kind of portable electron device with above-mentioned power-supply management system.
A kind of power-supply management system; it is installed in the portable electron device; this power-supply management system comprises a supply unit; one detecting module and a power output control module; this supply unit comprises a battery and a Power Entry Module; described detecting module comprises a charge controlling chip; described charge controlling chip and battery; Power Entry Module and power output control module all electrically connect; the charging current of described charge controlling chip control battery also can be detected the output current of described supply unit; corresponding described battery of this charge controlling chip and Power Entry Module also are respectively equipped with overcurrent protection point; when the electric current that detects supply unit output exceeds corresponding overcurrent protection point; described charge controlling chip reduces the charging current of battery or the operating frequency that the power output control module reduces portable electron device, to reduce the output current of battery or Power Entry Module.
A kind of portable electron device; it comprises that an operating circuit and is installed in the power-supply management system in this portable electron device; described power-supply management system comprises that one is used to the supply unit of operating circuit power supply; one detecting module and a power output control module; this supply unit comprises a battery; one charge controlling chip and a Power Entry Module; described charge controlling chip and battery; Power Entry Module; power output control module and operating circuit all electrically connect; described power output control module and operating circuit also electrically connect; the charging current of described charge controlling chip control battery also can be detected the output current of described supply unit; corresponding described battery of this charge controlling chip and Power Entry Module also are respectively equipped with overcurrent protection point; when the electric current that detects supply unit output exceeds corresponding overcurrent protection point; described charge controlling chip reduces the charging current of battery or triggers the operating frequency that the power output control module reduces operating circuit, to reduce the output current of battery or Power Entry Module.
With respect to prior art; described portable electron device with power-supply management system; whether the output current when it utilizes a detecting module to detect battery and Power Entry Module respectively operating circuit is powered exceeds its corresponding overcurrent protection point; and the charging current by reducing battery or the method that reduces the operating frequency of operating circuit reduce the output current of this battery and Power Entry Module; can guarantee described supply unit operate as normal, thereby avoid it directly to enter the self-protection pattern and cause automatic shutdown.
Description of drawings
Fig. 1 is the functional block diagram of the portable electron device with power-supply management system that provides of better embodiment of the present invention.
The main element symbol description
Hand-held computer 200
Power-supply management system 100
Supply unit 10
Battery 11
Power Entry Module 13
Detecting module 30
Detecting resistance 31
Charge controlling chip 33
Switch element 35
Power output control module 50
Operating circuit 70
Embodiment
See also Fig. 1, the power-supply management system 100 that the embodiment of the present invention example provides can be installed in for example existing hand-held computer 200 of a portable electron device, and is used for operating circuit 70 power supplies to hand-held computer 200.This power-supply management system 100 comprises a supply unit 10, a detecting module 30 and a power output control module 50.Described detecting module 30 all electrically connects with described supply unit 10 and power output control module 50, and described power output control module 50 also electrically connects with operating circuit 70.
Described supply unit 10 comprises a battery 11 and a Power Entry Module 13, and described battery 11 and Power Entry Module 13 all are electrically connected with described detecting module 30.Described battery 11 can be directly to hand-held computer 200 power supplies, and its operating current can change accordingly along with the electric energy of its storage inside, and has a maximum output current that limits.In the present embodiment, described Power Entry Module 13 is a power supply adaptor, and it can convert external power source to the required voltage of hand-held computer and input to described hand-held computer 200 as working power, simultaneously also can be to battery 11 chargings.
Described detecting module 30 comprises detecting resistance 31, a charge controlling chip 33 and a switch element 35 that electrically connects successively.Described detecting resistance 31 all electrically connects with battery 11 Power Entry Modules 13 and charge controlling chip 33.
Described charge controlling chip 33 all electrically connects with switch element 35 and power output control module 50.This charge controlling chip 33 is an existing battery charge control integrated circuit, and it has the input current limitation function.In the present embodiment, this charge controlling chip 33 is the chip of a MAX8724 model, it can detect the signal of Power Entry Module 13, and the charging current size of control battery 11, and described charge controlling chip 33 detects the voltage of battery 11 in the charging process of battery 11, be higher than preset threshold voltage if detect the voltage of battery 11, then described charge controlling chip 33 will stop battery 11 chargings.This charge controlling chip 33 can be measured the electric current on the detecting resistance 31, and this electric current is the output current of battery 11 or Power Entry Module 13.These charge controlling chip 33 corresponding batteries 11 are the default overcurrent protection point of prerequisite with the maximum output current that does not exceed battery 11, and corresponding power input module 13 is the default overcurrent protection point of prerequisite with the rated current that does not exceed this Power Entry Module 13.When having exceeded corresponding overcurrent protection point, described charge controlling chip 33 will reduce the charging current of battery 11 or send a signal to trigger described power output control module 50 when charge controlling chip 33 detects the electric current of detecting on the resistance 31 (being the electric current of supply unit 10 outputs).
In the present embodiment, when 11 pairs of hand-held computer power supplies of described battery, described switch element 35 is in order to control the power supply of this charge controlling chip 33.When starting described hand-held computer 200, switch element 35 is triggered and power supply is connected to described charge controlling chip 33, and starts this charge controlling chip 33; When closing described hand-held computer, described switch element 35 is triggered and is closed described charge controlling chip 33, the effectively electric energy of conserve batteries 11.
Described power output control module 50 is in order to the power output of Control work circuit 70.When this power output control module 50 receives the triggering signal that detecting module 30 sends; it is with Control work circuit 70; make it enter battery saving mode and reduce power; accordingly; supply unit 10 will need not bigger power output; make the electric current of its output be decreased to, can guarantee that described supply unit 10 continues operate as normal under battery saving mode, thereby avoid it directly to enter the self-protection pattern and cause automatic shutdown less than corresponding overcurrent protection point.
In the present embodiment, described operating circuit 70 can comprise CPU, hard disk, internal memory etc.By the operating frequency that reduces described CPU, hard disk, internal memory hand-held computer 200 is operated under the battery saving mode.In the present embodiment; described operating circuit 70 reaches battery saving mode in the operating frequency that reduces CPU under the control of power output control module 50 under with the prerequisite that does not influence operate as normal such as hard disk and internal memory; so that the output current of described supply unit 10 is less than its overcurrent protection point; guarantee that described supply unit 10 continues operate as normal under battery saving mode, thereby avoid it directly to enter the self-protection pattern and cause automatic shutdown.
When using described power-supply management system 100, it comprises following two kinds of situations: when 200 power supplies of 11 pairs of hand-held computers of described battery, start described hand-held computer 200, described switch element 35 is subjected to trigger to start this charge controlling chip 33.Described then charge controlling chip 33 is by detecting the output current that the electric current of detecting on the resistance 31 records this battery 11; and the overcurrent protection point of itself and battery 11 compared; if exceed this overcurrent protection point; charge controlling chip 33 will send a signal makes its CPU be in the battery saving mode operating state in Control work circuit 70 to trigger power output control module 50, to reduce the output current of battery 11.When 200 power supplies of 13 pairs of hand-held computers of described Power Entry Module; described charge controlling chip 33 obtains electric energy from Power Entry Module 13; and the current value on the detection detecting resistance 31; same; with this current value and corresponding overcurrent protection point comparison; if exceed this overcurrent protection point; then charge controlling chip 33 will reduce the electric current of 13 pairs of batteries of Power Entry Module, 11 chargings; to reduce the output current of Power Entry Module 13, up to the output current that detects this Power Entry Module 13 less than its overcurrent protection point.And if the charging current of battery 11 has been decreased to zero and the output current that still can't make Power Entry Module 13 during less than its overcurrent protection point; then charge controlling chip 33 will trigger power output control module 50; power output control module 50 makes it be in the battery saving mode operating state in Control work circuit 70 then; to reduce the output current of Power Entry Module 13; guarantee supply unit 10 operate as normal under battery saving mode, and avoid it directly to enter the self-protection pattern and cause automatic shutdown.
Described power-supply management system 100; it utilizes a detecting module 30 can detect the output current of described battery 11 and Power Entry Module 13 respectively; and its electric current that detects done contrast with corresponding overcurrent protection point; then reduce the charging current of battery 11 or the operating frequency of operating circuit 70 if exceed overcurrent protection point; to reduce the output current of this battery 11 and Power Entry Module 13; guarantee the normal power supply of this battery 11 and Power Entry Module 13, and avoid it directly to enter the self-protection pattern and cause automatic shutdown.
Be appreciated that this power-supply management system 100 also can be used in other portable electron device, to guarantee this portable electron device operate as normal.
In addition, those skilled in the art also can make various modifications, interpolation and the replacement on other forms and the details in claim of the present invention scope of disclosure and spirit.Certainly, these all should be included within the present invention's scope required for protection according to the variations such as various modifications, interpolation and replacement that spirit of the present invention is made.
Claims (12)
1. power-supply management system; be installed in the portable electron device; this power-supply management system comprises a supply unit; this supply unit comprises a battery and a Power Entry Module; it is characterized in that: described power-supply management system also comprises a detecting module and a power output control module; described detecting module comprises a charge controlling chip; described charge controlling chip and battery; Power Entry Module and power output control module all electrically connect; the charging current of described charge controlling chip control battery also can be detected the output current of described supply unit; corresponding described battery of this charge controlling chip and Power Entry Module also are respectively equipped with overcurrent protection point; when the electric current that detects supply unit output exceeds corresponding overcurrent protection point; described charge controlling chip reduces the charging current of battery or triggers the operating frequency that the power output control module reduces portable electron device, to reduce the output current of battery or Power Entry Module.
2. power-supply management system as claimed in claim 1 is characterized in that: when charge controlling chip detected battery powered output current and exceeds corresponding overcurrent protection point, the power output control module reduced the operating frequency of portable electron device; When the electric current that detects Power Entry Module output when charge controlling chip exceeded corresponding overcurrent protection point, charge controlling chip reduced the charging current to battery; And if battery charge is decreased to zero, detects output current and still exceed the overcurrent protection point, then the power output control module reduces the operating frequency of portable electron device.
3. power-supply management system as claimed in claim 1, it is characterized in that: described detecting module also comprises a detecting resistance, described charge controlling chip is by detecting resistance and described battery and Power Entry Module electric connection, and described charge controlling chip is measured the output current of supply unit by measuring the ohmically electric current of detecting.
4. power-supply management system as claimed in claim 1 is characterized in that: described charge controlling chip is the overcurrent protection point of default this Power Entry Module of prerequisite with the rated current that does not exceed described Power Entry Module.
5. power-supply management system as claimed in claim 1 is characterized in that: described charge controlling chip is the overcurrent protection point of the default described battery of prerequisite with the maximum output current that does not exceed battery.
6. power-supply management system as claimed in claim 1, it is characterized in that: described detecting module also comprises a switch element that is electrically connected with charge controlling chip, when battery is powered to portable electron device, start described portable electron device trigger switch element and start charge controlling chip, close described portable electron device trigger switch element charge closing control chip.
7. power-supply management system as claimed in claim 1 is characterized in that: described Power Entry Module is an adapter, in order to external power source is converted to the required rated voltage of portable electron device.
8. portable electron device; it comprises an operating circuit and a power-supply management system; described power-supply management system comprises that one is used to the supply unit of operating circuit power supply; this supply unit comprises a battery and a Power Entry Module; it is characterized in that: described power-supply management system also comprises a detecting module and a power output control module; described detecting module comprises a charge controlling chip; described charge controlling chip and battery; Power Entry Module and power output control module all electrically connect; described power output control module and operating circuit also electrically connect; the charging current of described charge controlling chip control battery also can be detected the output current of described supply unit; corresponding described battery of this charge controlling chip and Power Entry Module also are respectively equipped with overcurrent protection point; when the electric current that detects supply unit output exceeds corresponding overcurrent protection point; described charge controlling chip reduces the charging current of battery or triggers the operating frequency that the power output control module reduces operating circuit, to reduce the output current of battery or Power Entry Module.
9. portable electron device as claimed in claim 8, it is characterized in that: described detecting module also comprises a detecting resistance, described charge controlling chip is by detecting resistance and described battery and Power Entry Module electric connection, and described charge controlling chip is measured the electric current of supply unit to operating circuit output by measuring the ohmically electric current of detecting.
10. portable electron device as claimed in claim 8; it is characterized in that: described charge controlling chip is a battery charge control integrated circuit; this charge controlling chip has the input current limitation function; in order to the charging current of restriction Power Entry Module to battery charge, this charge controlling chip is the overcurrent protection point of default this Power Entry Module of prerequisite with the rated current that does not exceed described Power Entry Module.
11. portable electron device as claimed in claim 9 is characterized in that: described charge controlling chip is the overcurrent protection point of the default described battery of prerequisite with the maximum output current that does not exceed battery.
12. portable electron device as claimed in claim 8 is characterized in that: when charge controlling chip detected battery powered output current and exceeds corresponding overcurrent protection point, the power output control module reduced the operating frequency of portable electron device; When the electric current that detects Power Entry Module output when charge controlling chip exceeded corresponding overcurrent protection point, charge controlling chip reduced the charging current to battery; And if battery charge is decreased to zero, detects output current and still exceed the overcurrent protection point, then the power output control module reduces the operating frequency of portable electron device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101437652A CN102214941A (en) | 2010-04-12 | 2010-04-12 | Power source management system and portable electronic device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101437652A CN102214941A (en) | 2010-04-12 | 2010-04-12 | Power source management system and portable electronic device with same |
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| Publication Number | Publication Date |
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| CN102214941A true CN102214941A (en) | 2011-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101437652A Pending CN102214941A (en) | 2010-04-12 | 2010-04-12 | Power source management system and portable electronic device with same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401035A (en) * | 2013-07-09 | 2013-11-20 | 联宝(合肥)电子科技有限公司 | Charging method of mobile equipment battery pack |
| CN103532174A (en) * | 2012-07-06 | 2014-01-22 | 纬创资通股份有限公司 | Dynamic charging device, system and method |
| WO2015113334A1 (en) * | 2014-01-28 | 2015-08-06 | 广东欧珀移动通信有限公司 | Terminal and battery charging control device and method therefor |
| US10211656B2 (en) | 2014-01-28 | 2019-02-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Power adapter, terminal, and method for processing exception of charging loop |
| CN109840006A (en) * | 2019-02-19 | 2019-06-04 | 上海闻泰信息技术有限公司 | Main control chip power supply unit |
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| CN1790861A (en) * | 2004-11-12 | 2006-06-21 | 惠普开发有限公司 | Power management system and method |
| US20090102426A1 (en) * | 2007-10-23 | 2009-04-23 | Inventec Corporation | Charging system and method for electronic device |
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| CN1527214A (en) * | 2003-03-06 | 2004-09-08 | 华硕电脑股份有限公司 | Portable computer with desk top computer processor and its power supply managing method |
| CN1790861A (en) * | 2004-11-12 | 2006-06-21 | 惠普开发有限公司 | Power management system and method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532174A (en) * | 2012-07-06 | 2014-01-22 | 纬创资通股份有限公司 | Dynamic charging device, system and method |
| US9368994B2 (en) | 2012-07-06 | 2016-06-14 | Wistron Corporation | Dynamic charging device and method thereof |
| CN103532174B (en) * | 2012-07-06 | 2016-06-15 | 纬创资通股份有限公司 | Dynamic charging device, system and method |
| CN103401035A (en) * | 2013-07-09 | 2013-11-20 | 联宝(合肥)电子科技有限公司 | Charging method of mobile equipment battery pack |
| CN103401035B (en) * | 2013-07-09 | 2016-04-27 | 联宝(合肥)电子科技有限公司 | A kind of charging method of mobile device battery pack |
| WO2015113334A1 (en) * | 2014-01-28 | 2015-08-06 | 广东欧珀移动通信有限公司 | Terminal and battery charging control device and method therefor |
| US9935490B2 (en) | 2014-01-28 | 2018-04-03 | Guangdong Oppo Mobile Telelcommunications Corp., Ltd. | Terminal and battery charging control device and method thereof for realizing overcurrent and/or overvoltage protection |
| US10186895B2 (en) | 2014-01-28 | 2019-01-22 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal and battery charging control device and method thereof for overcurrent and/or overvoltage protection |
| US10211656B2 (en) | 2014-01-28 | 2019-02-19 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Power adapter, terminal, and method for processing exception of charging loop |
| US11342765B2 (en) | 2014-01-28 | 2022-05-24 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal, power adapter and method for handling charging anomaly |
| CN109840006A (en) * | 2019-02-19 | 2019-06-04 | 上海闻泰信息技术有限公司 | Main control chip power supply unit |
| CN109840006B (en) * | 2019-02-19 | 2020-10-16 | 无锡闻泰信息技术有限公司 | Main control chip power supply device |
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Application publication date: 20111012 |