CN1426151A - Charging device capable of dynamically adjusting charge power - Google Patents
Charging device capable of dynamically adjusting charge power Download PDFInfo
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- CN1426151A CN1426151A CN 01143582 CN01143582A CN1426151A CN 1426151 A CN1426151 A CN 1426151A CN 01143582 CN01143582 CN 01143582 CN 01143582 A CN01143582 A CN 01143582A CN 1426151 A CN1426151 A CN 1426151A
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Abstract
A charging set capabel of dynamically adjusting charging power includes DC-DC converter power conversion level for supplying charging current; current error amplifier designing current charging adjusting signal to be fed into the DC-DC converter power conversion level for adjusting charging current; a first quantity of electricity detectino device used for designing charging current signal to be fed into the current error amplifier and output charging current to charge cell; quantity detection computation device designing and outputting working current operation signal, increasing applied efficiency of external power output power and shortening charging time.
Description
Technical field
The present invention relates to a kind of charging device, particularly relate to a kind of battery charger that is applicable to mancarried device.
Background technology
Development of science and technology is maked rapid progress, and the appearance of digital electronic product brings the mankind and lives more easily.And various portable digital devices, for example: mobile phone, notebook computer or personal digital assistant (Personal Digital Assistance) ... or the like fast development, improve the efficient of the convenient of human lives and work more widely.For notebook computer, because notebook computer has portability, under the situation of external power supply not, whole notebook computer just provides electric power by its reserve battery of installing, so keep the lasting and stable supply of electric power of battery supply, extremely important to the running of whole notebook-computer system.And the length in the quality of battery charging function and charging interval often also is listed in one of important reference of assessment notebook computer function.
Please refer to Fig. 1, what it illustrated is the circuit block diagram of the system and device 100 of traditional notebook computer.Legacy system device 100 couples with external power supply 102.Comprising charging device 103 and main functional device 104.The electric power that tradition charging device 103 utilizes external power supply 102 to be provided charges for rechargeable battery 106.Tradition charging device 103 has an electric quantity detection apparatus 108, in order to the size of the charging current that detects feed-in rechargeable battery 106, and according to the size output charging current signal of charging current.Please refer to Fig. 2, what it illustrated is the circuit block diagram of electric quantity detection apparatus 200 in traditional charging device.Electric quantity detection apparatus 200 is made up of 204 of voltage conversion circuits (current to voltage convert circuit) current sense resistor 202 and electric current, and it couples relation as shown in Figure 2.When traditional charging device 103 begins to charge, the charging current current sense resistor 202 of flowing through, and on current sense resistor 202, produce voltage.When charging current was big more, its voltage that is produced at current sense resistor 202 can be big more.Therefore, electric current is learnt the size of charging current by the voltage on the detection current sense resistor 202 to voltage conversion circuit 204.And according to the suitable magnitude of voltage of the size of charging current output, this magnitude of voltage is defined as a charging current signal, its representative be the size of charging current in traditional charging device 103.
Referring again to Fig. 1, the charging current signal that electric quantity detection apparatus 108 is exported can be fed in the current error amplifier (error amplifier) 110.Current error amplifier 110 couples with electric quantity detection apparatus 108, receives the setting charging current signal Cs that presets from charging current signal and traditional charging device 103 of electric quantity detection apparatus 108 respectively.Current error amplifier 110 relatively these two signal values produces charge-current adjustment signal, in order to set and to adjust the charge condition of traditional charging device 103.Direct current couples direct current transducer power conversion stage (DC-DC Converter Power Stage) 112 and current error amplifier 110, go to adjust the size of the charging current of feed-in electric quantity detection apparatus 108 according to the charging conditioning signal, in order to adjust the charge condition of traditional charging device 103.In addition, the voltage of rechargeable battery 106 also can be feedback to voltage error amplifier 114.Voltage error amplifier 114 can receive the charging voltage signal of rechargeable battery and the setting charging voltage signal Vs that traditional charging device 103 is preset respectively, produce the charging voltage conditioning signal according to these two signals, the feed-in direct current is in the direct current transducer power conversion stage 112.Direct current is adjusted the size of the charge capacity of output respectively from the charging conditioning signal of current error amplifier 110 and voltage error amplifier 114 to direct current transducer power conversion stage 112 foundations.In other words, the charge condition between charge period can be adjusted and determine to traditional charging device 103 respectively according to the rechargeable battery of importing rechargeable battery 106 and rechargeable battery 106 charging voltages own.
Please refer to Fig. 3 A～Fig. 3 C, what it illustrated is when traditional charging device 103 setting full-load currents charge, the sequential chart that charging voltage and charging current changed with the charging interval.The initial voltage of supposing rechargeable battery 106 is Vi, and its value is less than the full-load voltage Vs of rechargeable battery 106.Wherein, the size of the setting charging voltage signal of traditional charging device 103 by preestablishing input voltage error amplifier 114 decides the size of the full-load voltage Vs of rechargeable battery 106.When beginning to charge, the charging voltage conditioning signal that charge-current adjustment signal that current error amplifier 110 is exported and voltage error amplifier 114 are exported all is fed into direct current simultaneously in the direct current transducer power conversion stage 112.Be noted that these two kinds of signals all come the size of representation signal with the size of magnitude of voltage.The voltage Vi of rechargeable battery 106 is less than its full-load voltage Vs, so the charge-current adjustment signal that its voltage of charging voltage conditioning signal that voltage error amplifier 114 is exported is exported less than current error amplifier 110 thus.So direct current can be adjusted charge condition according to the charge-current adjustment signal that is received to direct current transducer power adjustment level 112.Tradition charging device 103 will charge to rechargeable battery 106 with a full-load current Is.Wherein, the size of the setting charging current signal of traditional charging device 103 by preestablishing input current error amplifier 110 decides the size of the full-load current Is of input rechargeable battery 106.For example: as shown in Figure 3A, the full-load current signal of setting input rechargeable battery 106 is Is1.
Referring again to Fig. 3 A, along with the increase in charging interval, the voltage of rechargeable battery 106 raises gradually.At this moment, its voltage of charging voltage conditioning signal that voltage error amplifier 114 is exported also can raise with the increase of the voltage of rechargeable battery 106, but still the signal strength signal intensity of the charge-current adjustment signal of being exported less than current error amplifier 110.So direct current can be adjusted charge condition according to the charge-current adjustment signal that is received to direct current transducer power adjustment level 112.That the size of its charging current is kept always is charging device 103 predefined full-load current Is1.
With Fig. 3 A is example, and when charging proceeded to time t3, the charging voltage value of rechargeable battery 106 equaled the full-load voltage Vs of predefined rechargeable battery 106.Afterwards, the charge-current adjustment signal that can be exported greater than current error amplifier 110 of its magnitude of voltage of charging voltage conditioning signal of being exported of voltage error amplifier 114.So can becoming according to the charging voltage conditioning signal that is received direct current transducer power adjustment level 112, direct current adjusts charge condition.At this moment, the big young pathbreaker of the charging current of rechargeable battery 106 in time increase and reduce.And the voltage swing of rechargeable battery 106 will be maintained full-load voltage value Vs.
Described by preamble, the size of the full-load current Is of input rechargeable battery 106 is to be decided by the setting in advance of traditional charging device 103.It sets the size of full-load current Is, can determine the quality of charge efficiency, i.e. the time length of the required cost of charging process.Please refer to Fig. 3 B, when the full-load current of setting input rechargeable battery 106 was Is2, in charging process, the situation that the charging voltage of rechargeable battery 106 increases at any time was shown in Fig. 3 B.Please be simultaneously with reference to Fig. 3 C and Fig. 3 B, because its its value of full-load current Is2 that sets input rechargeable battery 106 is greater than full-load current Is1, so lack than the time t1 of the required cost of charging with full-load current Is1 with the charge time t2 of required cost of full-load current Is2.In like manner, please be simultaneously with reference to Fig. 3 A, Fig. 3 B and Fig. 3 C, when setting is charged to rechargeable battery 106 with the full-load current Is3 also bigger than its value of full-load current Is1, Is2, its required time t3 also can be than the time t2 of the required cost of charging with full-load current Is2, and all little with the charge time t1 of required cost of full-load current Is1.In other words, its value of full-load current Is is big more when preestablishing, and then the charge efficiency of charging device 103 is good more, i.e. the time of the required cost of charging process is short more.
In sum, tradition charging device 103 is to preestablish the mode of charging current signal and charging voltage signal, full-load current Is when deciding charging and the size of full-load voltage Vs, so traditional charging device 103 is in the process of charging, the value of full-load current Is and full-load voltage Vs is all fixed.In other words, when traditional charging device 103 charged, its maximum power loss can be considered a fixed value.
When traditional charging device 103 charged, external power supply 102 is the supply section electric power main functional device 104 of giving notebook computer also.Wherein, power hybrid circuit (power source mixcircuit) 116 couples with external power supply 102 and rechargeable battery 106 respectively, in order to the power supply supply of main functional device 104 that notebook computer is provided, to keep the normal operation of its main functional device 104.
As can be known described by preamble, traditional charging device and external power supply couple.External power supply except the required energy (being referred to as operating power) of the main functional device work that must supply notebook computer at any time, required energy (being referred to as charge power) in the time of also will supplying the charging of traditional charging device at any time.The power size that external power supply can provide is fixed, so notebook computer is when carrying out work, must do suitable distribution to power, can keep the normal operation of main functional device on the one hand, can carry out the charging action of rechargeable battery on the other hand again efficiently.The tradition charging device is to preestablish the mode of charging current and charging voltage, the full-load current when deciding charging and the size of full-load voltage.In other words, allocate in advance with keeping the power that rechargeable battery charges is fixed to traditional charging device.But the watt level that the main functional device of notebook computer is consumed when running is to change at any time along with the difference of carrying out action, does not have a fixing value.So must suitably set the size of the full-load current and the full-load voltage of traditional charging device, the operating power sum of loss was greater than the power output of external power supply when the charge power of loss added the main functional device running when avoiding charging, and the situation of overload just (overloading) takes place.General conventional practice is the maximum service rating during according to the main functional device work of notebook computer, decides the size of the charge power that traditional charging device sets.That is to say, the maximum service rating when available external power supply power output is deducted main functional device work, the difference of gained is the maximum charge watt level that traditional charging device can use.So, even notebook computer carries out work with maximum service rating, the situation that external power supply does not have overload yet takes place.
The tradition charging device problem that can suffer from is: traditional charging device is the size that the maximum service rating size during according to working with notebook computer is set its charge power.Please refer to Fig. 4, it illustrated is that the power output of external power supply is distributed to the charge power of charging device, the operating power of main functional device and the sequential chart of reactance capacity.The power output utilized of external power supply is distributed to the sequential chart of the operating power of the charge power of traditional charging device and main functional device.Transverse axis is represented the time, and longitudinal axis representative is set at when the power output size of external power supply under 100% the situation, the percentage of the power output of the shared external power supply of operating power of charge power that traditional charging device spent and main functional device.Be noted that the power output of external power supply can't absolutely offer main functional device or charging device, and have the power loss of small part.So the charge power that spent of traditional charging device and the operating power sum of main functional device, less than the size of the power output of external power supply, as shown in Figure 4.Because notebook computer is when work, its operating power can't be in the state of maximum power often.Therefore, if the charge power of unchangable traditions charging device, then when notebook computer does not carry out work with its maximum service rating, just have the power output of part external power supply, as the part of the diagonal line hatches among Fig. 4, do not utilized and waste by system, be referred to as reactance capacity.In other words, the power output utilized of external power supply is not fully utilized.So, with regard to traditional charging device, its rechargeable battery just needs the long time charge, so that charge efficiency also becomes is relatively poor.
In sum, traditional charging device has following problem:
1. the power output of external power supply is not utilized fully.
Charging interval longer, charge efficiency is relatively poor.
Summary of the invention
The object of the present invention is to provide a kind of charging device that can dynamically adjust charge power, to reach utilance, the shortening charging interval of improving the external power supply power output, the purpose that improves charge efficiency.
The object of the present invention is achieved like this, a kind of charging device that can dynamically adjust charge power promptly is provided, be arranged in a system and device of portable system, wherein, this system and device is made of this charging device and a main functional device, and this system and device and an external power supply couple, wherein, this external power supply operates a required operating current in order to this main functional device to be provided, and for the rechargeable battery in this charging device charges, this charging device comprises:
One direct current couples with this external power supply the direct current transducer power conversion stage, in order to supply this rechargeable battery charging a required charging current;
One current error amplifier, with this direct current the direct current transducer power conversion stage is coupled, in order to adjust signal according to a charging current signal and an operating current computing signal sets one current charges, and this current charges adjusted this direct current of signal feed-in to the direct current transducer power conversion stage, to adjust the size of this charging current;
One first electric quantity detection apparatus, with this direct current direct current transducer power conversion stage, this error amplifier and this rechargeable battery are coupled respectively, in order to export this charging current signal according to this charging current, and with this this rechargeable battery of charging current feed-in, in order to this rechargeable battery is charged; And
One electric weight detection calculations device couples with this external power supply and this error amplifier, exports this operating current computing signal in order to set the operating current signal according to this operating current and.
Furtherly, this first electric quantity detection apparatus, with direct current direct current transducer power conversion stage, error amplifier and rechargeable battery are coupled respectively, in order to detecting the charging current size and to convert the charging current signal to, and with charging current signal feed-in current error amplifier.In addition, first electric quantity detection apparatus also can be with charging current feed-in rechargeable battery, in order to rechargeable battery is charged.Electric weight detection calculations device couples with external power supply and error amplifier, in order to foundation operating current and setting operating current signal is made comparisons and computing, and with the output of operating current computing signal, is couple to the current error amplifier.
Description of drawings
Fig. 1 is the circuit block diagram of the legacy system device of notebook computer;
Fig. 2 is the circuit block diagram of electric quantity detection apparatus in traditional charging device;
Fig. 3 A is for when traditional charging device setting full-load current being IS1 when charging, the sequential chart that charging voltage and charging current changed with the charging interval;
Fig. 3 B is for when traditional charging device setting full-load current being IS2 when charging, the sequential chart that charging voltage and charging current changed with the charging interval;
Fig. 3 C is for when traditional charging device setting full-load current being IS3 when charging, the sequential chart that charging voltage and charging current changed with the charging interval;
Fig. 4 distributes to the charge power of charging device, the operating power of main functional device and the sequential chart of reactance capacity for the power output of external power supply;
The circuit block diagram that can dynamically adjust the system and device of charge power that Fig. 5 proposes for the present invention.
Embodiment
The charging device that can dynamically adjust charge power proposed by the invention, its spirit is under the situation that the power output of external power supply is fixed, the operating power of visual notebook computer is dynamically adjusted the charge power of charging device, makes the power output of external power supply to be utilized more efficiently.Simultaneously, also can shorten the charging interval and the raising charge efficiency of rechargeable battery.
Please refer to Fig. 5, what it illustrated is a kind of circuit block diagram that can dynamically adjust the system and device 500 of charge power that the present invention carries.System and device 500 of the present invention couples with external power supply 502.Comprising charging device 503 of the present invention and main functional device 504.Charging device 503 of the present invention is rechargeable battery 506 chargings in order to the electric power that utilizes external power supply 502 and provided.The relation that couples of each circuit element as shown in Figure 5 in the charging device 503 of the present invention.Please be simultaneously with reference to Fig. 1 and Fig. 5, the present invention and traditional charging device difference are that charging device 503 of the present invention has increased electric weight detection calculations device 507.Wherein, electric weight detection calculations device 507 includes electric quantity detection apparatus 508 and electric weight arithmetic unit 512.In addition, charging device 503 of the present invention has electric quantity detection apparatus 508 and 510 two electric quantity detection apparatus of electric quantity detection apparatus, as shown in Figure 5.
Electric quantity detection apparatus 508 couples with external power supply 502, and external power supply 502 can be exported an operating current to electric quantity detection apparatus 508.This operating current will be imported the main functional device 504 of notebook computer, in order to keep the normal operation of main functional device 504.The operating principle of electric quantity detection apparatus 508 its circuit elements is identical with the electric quantity detection apparatus 108 of traditional charging device 103, and detailed content please refer to the explanation of Fig. 2 and preamble.Electric quantity detection apparatus 508 is in order to the size of the operating current of the main functional device 504 that detects the input notebook computer, i.e. the size of the operating power of main functional device 504, and export an operating current signal according to the size of operating current.
Electric weight arithmetic unit 512 couples with electric quantity detection apparatus 508, in the operating current signal meeting feed-in electric weight arithmetic unit 512 of electric quantity detection apparatus 508 outputs.Electric weight arithmetic unit 512 receives respectively from the default setting operating current signal Ct of the operating current signal of electric quantity detection apparatus 508 and charging device of the present invention 503.Described by preamble, the operating power of main functional device 504 can change to some extent along with the difference of operating state, so its signal magnitude of operating current signal of electric quantity detection apparatus 508 detected operating currents, output all can change thereupon.Electric weight arithmetic unit 512 is a benchmark with the predefined setting operating current signal Ct of system, makes comparisons and computing with the operating current signal, in order to learn the size of the operating power of main functional device 504 at that time.Electric weight arithmetic unit 512 is exported an operating current computing signal to current error amplifier 514 according to these two signals.
Current error amplifier 514 couples with electric weight arithmetic unit 512, except receiving operating current computing signal.Electric quantity detection apparatus 510 is also exported a charging current signal to current error amplifier 514.Wherein, the circuit element operation principles of electric quantity detection apparatus 510 is identical with the electric quantity detection apparatus 108 of traditional charging device 103, all in order to the flow through charging current size of electric quantity detection apparatus 510 of detection, does not repeat them here.The charging current signal value of electric quantity detection apparatus 510 outputs is represented the size of charging device 503 charge powers, and the operating current computing signal of electric weight arithmetic unit 512 outputs is represented the size of main functional device 504 operating powers of notebook ionization.Current error amplifier 514 is in order to determine under the condition of present main functional device 504 operating powers the size of charge power when charging device 503 charges work.Under the situation that the power output of known external power supply 502 is fixed, current error amplifier 514 can dynamically determine the size of charging device 503 charge powers according to the operating power of main functional device 504.Described by preamble, under the situation that the power output of external power supply 502 is fixed, if the operating power of main functional device 504 can be detected at any time, and charging device 503 is dynamically adjusted the charge power size to rechargeable battery 506 chargings, and then charging device 503 can be adjusted the size of rechargeable battery 506 charge powers at any time according to the difference of main functional device 504 operating powers.For the power output that makes external power supply 502 obtains the most effective utilization, power dissipation is reduced to minimum, the charge power that charging device 503 can be set input rechargeable battery 506 is operating power poor of the power output utilized and the main functional device 504 of external power supply 502.So, the power output utilized of external power supply 502 can absolutely be utilized, and can not fix because of the charge power of charging device 503, if the operating power of main functional device 504 reduces, then can cause the power loss of the power output of part external power supply.
After current error amplifier 514 carries out computing relatively to these two signals, export a current charges adjust signal to direct current to direct current transducer power conversion stage 516, to adjust the size of charging current.
The voltage charging that direct current is adjusted signal, voltage error amplifier 518 feed-ins to the current charges of direct current transducer power conversion stage 516 difference received current error amplifiers 514 feed-ins is adjusted signal, and couples with external power supply 502.Direct current can be selected to adjust signal according to current charges adjustment signal or voltage charging to direct current transducer power conversion stage 516 and adjust from external power supply 502 through the size of direct current to the charging current of direct current transducer power conversion stage 516 outputs.The charging current of output direct current transducer power conversion stage 516 can be charged via 510 pairs of rechargeable batteries 506 of electric quantity detection apparatus.Because charging device 503 of the present invention can be with after deducting the operating power of main functional device 504, the power output utilized of all the other external power supplys 502 is all brought the usefulness of doing rechargeable battery 506 chargings.So the time charging current should be bigger than the charging current of legacy system device 100.So, also make the 506 required charging intervals of rechargeable battery lack than traditional 103 required charging intervals of charging device.Be noted that, in the charging device 503 of the present invention, all the voltage error amplifier 114 with traditional charging device 103 is identical to direct current transducer power conversion stage 112 and power hybrid circuit 116 with direct current to the operation principle of direct current transducer power conversion stage 516 and power hybrid circuit 502 and purposes for voltage error amplifier 518, direct current, please, repeat no more herein voluntarily with reference to the explanation of preamble.
Electric weight detection calculations device 508 more couples with main functional device 504, when detecting (detecting), electric weight detection calculations device 508 has when unusual to the operating current of exporting from external power supply 502, electric weight detection calculations device 508 can be exported a warning signal to main functional device 504, in order to notice main functional device 504 abnormal current input is arranged.Main functional device 504 can be provided with protective device in addition, preventing abnormal work electric current input, the circuit element of main functional device 504 is caused damage, and influences its operate as normal.
Charging device 503 of the present invention is except being applicable to notebook computer, and other mancarried devices comprise: and mobile phone, personal digital aid (PDA) (Personal Digital Assistance, PDA) all applicable.
The disclosed a kind of charging device that can dynamically adjust charge power of the above embodiment of the present invention, its advantage and effect are:
1. improve the utilance of external power supply power output: charging device of the present invention is dynamically adjusted the charge power of input rechargeable battery, so can fix in the power output of external power supply, and under the situation that the operating power of main functional device can be detected at any time, adjust the size of rechargeable battery charge power at any time according to the difference of main functional device operating power.For the power output that makes external power supply obtains the most effective utilization, power dissipation to be reduced to minimum, the charge power that charging device can be set the input rechargeable battery is operating power poor of the power output utilized and the main functional device of external power supply.So, the power output utilized of external power supply can absolutely be utilized, and can not fix because of the charge power of charging device, if the operating power of main functional device reduces, then can cause the power loss of the power output of part external power supply.
2. shorten the charging interval, improve charge efficiency: charging device of the present invention is dynamically adjusted the charge power of charging device, under the situation that the power output utilized of external power supply is fixed, the operating power of visual main functional device is dynamically adjusted the charge power of charging device, makes the power output utilized of external power supply to be utilized more efficiently.Charging device of the present invention can be with after deducting the operating power of main functional device, and the power output utilized of all the other external power supplys is all brought the usefulness of doing the rechargeable battery charging.So the time charging current can be bigger than the charging current of traditional charging device.Make that so, also the charging interval more required than traditional charging device in required charging interval of rechargeable battery is short.Charge efficiency is also higher.
3. avoid abnormal work electric current input main functional device: charging device of the present invention, its electric weight detection calculations device more couples with main functional device, when detecting operating current from external power supply output, electric weight detection calculations device has when unusual, electric weight detection calculations device can be exported a warning signal to main functional device, in order to the notice main functional device abnormal current input is arranged.Main functional device can be provided with safeguard measure in addition, prevents abnormal work electric current input, and the circuit element of main functional device is caused damage, and influences its operate as normal.
In sum; though disclosed the present invention in conjunction with an above preferred embodiment; yet it is not in order to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can be used for a variety of modifications and variations, so protection scope of the present invention should be with being as the criterion that claim was defined.
Claims (6)
1. the charging device that can dynamically adjust charge power, be arranged in a system and device of portable system, wherein, this system and device is made of this charging device and a main functional device, and this system and device and an external power supply couple, and wherein, this external power supply is in order to provide this main functional device running a required operating current, and for the rechargeable battery in this charging device charges, this charging device comprises:
One direct current couples with this external power supply the direct current transducer power conversion stage, in order to supply this rechargeable battery charging a required charging current;
One current error amplifier, with this direct current the direct current transducer power conversion stage is coupled, in order to adjust signal according to a charging current signal and an operating current computing signal sets one current charges, and this current charges adjusted this direct current of signal feed-in to the direct current transducer power conversion stage, to adjust the size of this charging current;
One first electric quantity detection apparatus, with this direct current direct current transducer power conversion stage, this error amplifier and this rechargeable battery are coupled respectively, in order to export this charging current signal according to this charging current, and with this this rechargeable battery of charging current feed-in, in order to this rechargeable battery is charged; And
One electric weight detection calculations device couples with this external power supply and this error amplifier, exports this operating current computing signal in order to set the operating current signal according to this operating current and.
2. charging device as claimed in claim 1, wherein this electric weight detection calculations device also comprises:
One second electric quantity detection apparatus couples with this external power supply, exports an operating current signal according to this operating current, in order to detect this operating current of this mancarried device of input; And
One electric weight arithmetic unit couples with this second electric quantity detection apparatus, in order to according to this operating current signal and should set this operating current computing signal of operating current signal sets, and with this operating current computing signal output.
3. charging device as claimed in claim 1, wherein, this electric weight detection calculations device also couples with this main functional device, when this electric weight detection calculations device detects an abnormal work electric current, this electric weight detection calculations device is exported a warning signal this main functional device to this portable set, in order to notify this main functional device the input of one abnormal work electric current is arranged.
4. charging device as claimed in claim 1, wherein, this mancarried device is a notebook computer.
5. charging device as claimed in claim 1, wherein, this mancarried device is a mobile phone.
6. charging device as claimed in claim 1, wherein, this mancarried device be a personal digital aid (PDA) (Personal Digital Assistance, PDA).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01143582 CN1249877C (en) | 2001-12-13 | 2001-12-13 | Charging device capable of dynamically adjusting charge power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01143582 CN1249877C (en) | 2001-12-13 | 2001-12-13 | Charging device capable of dynamically adjusting charge power |
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| Publication Number | Publication Date |
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| CN1426151A true CN1426151A (en) | 2003-06-25 |
| CN1249877C CN1249877C (en) | 2006-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01143582 Expired - Lifetime CN1249877C (en) | 2001-12-13 | 2001-12-13 | Charging device capable of dynamically adjusting charge power |
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| CN (1) | CN1249877C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923756B (en) * | 2009-06-10 | 2012-11-07 | 广达电脑股份有限公司 | Power management device and sales terminal apparatus using same |
| CN103051016A (en) * | 2011-10-13 | 2013-04-17 | 福特全球技术公司 | Variable output current battery charger and method of operating same |
| CN103078359A (en) * | 2011-10-25 | 2013-05-01 | 三星电子株式会社 | Apparatus and method for controlling charge current in portable terminal |
| CN103219783A (en) * | 2013-04-11 | 2013-07-24 | 重庆邮电大学 | Frequency converting control method appropriate for charging process of electric automobile |
| CN103683988A (en) * | 2012-09-13 | 2014-03-26 | 广达电脑股份有限公司 | Power conversion system and method |
| US9219376B2 (en) | 2009-09-03 | 2015-12-22 | Koninklijke Philips N.V. | Charging circuit with current regulation |
| CN105680491A (en) * | 2014-11-18 | 2016-06-15 | 李文杰 | Method for controlling output power of charging equipment and intelligent charging equipment |
| CN104184304B (en) * | 2013-05-24 | 2017-12-26 | 联想(北京)有限公司 | A kind of method for power conversion and device |
-
2001
- 2001-12-13 CN CN 01143582 patent/CN1249877C/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923756B (en) * | 2009-06-10 | 2012-11-07 | 广达电脑股份有限公司 | Power management device and sales terminal apparatus using same |
| US9219376B2 (en) | 2009-09-03 | 2015-12-22 | Koninklijke Philips N.V. | Charging circuit with current regulation |
| CN103051016A (en) * | 2011-10-13 | 2013-04-17 | 福特全球技术公司 | Variable output current battery charger and method of operating same |
| CN103051016B (en) * | 2011-10-13 | 2016-04-13 | 福特全球技术公司 | The method of variable output current battery charger and the described charger of operation |
| US9509165B2 (en) | 2011-10-25 | 2016-11-29 | Samsung Electronics Co., Ltd. | Apparatus and method for controlling charge current in portable terminal |
| CN103078359A (en) * | 2011-10-25 | 2013-05-01 | 三星电子株式会社 | Apparatus and method for controlling charge current in portable terminal |
| CN103078359B (en) * | 2011-10-25 | 2018-04-06 | 三星电子株式会社 | Apparatus and method for controlling the charging current in portable terminal |
| CN103683988A (en) * | 2012-09-13 | 2014-03-26 | 广达电脑股份有限公司 | Power conversion system and method |
| CN103683988B (en) * | 2012-09-13 | 2016-07-06 | 广达电脑股份有限公司 | power conversion system and method |
| CN103219783A (en) * | 2013-04-11 | 2013-07-24 | 重庆邮电大学 | Frequency converting control method appropriate for charging process of electric automobile |
| CN104184304B (en) * | 2013-05-24 | 2017-12-26 | 联想(北京)有限公司 | A kind of method for power conversion and device |
| CN105680491A (en) * | 2014-11-18 | 2016-06-15 | 李文杰 | Method for controlling output power of charging equipment and intelligent charging equipment |
| CN105680491B (en) * | 2014-11-18 | 2018-07-06 | 李文杰 | A kind of control method of charging equipment output power and intelligent charge equipment |
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