CN101162848A - Resolving scheme of charger and charging equipment - Google Patents
Resolving scheme of charger and charging equipment Download PDFInfo
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- CN101162848A CN101162848A CNA2007100766449A CN200710076644A CN101162848A CN 101162848 A CN101162848 A CN 101162848A CN A2007100766449 A CNA2007100766449 A CN A2007100766449A CN 200710076644 A CN200710076644 A CN 200710076644A CN 101162848 A CN101162848 A CN 101162848A
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Abstract
The present invention relates to a solution proposal for a charger and a charging device after executing standard (YD/T-1591-2006 mobile communication handheld charger and interface technique specifications and testing method), which comprises a charger and is characterized in that: the step multiple voltage output is that the voltage is lower if the output current is larger and the current is constant output when reaching maximum limiting value. The present invention comprises a charging device and is characterized in that: a voltage detection comparison amplification circuit is arranged on the input end of the charging device to compare the input voltage, the charging device pulls down the output voltage of the charger or USB when the maximum output current of the output current from the charger or USB is smaller than the constant current defined by the charging device, to such a lower degree that the charging device is controlled to decrease the charging current if the input end defines voltage so that the input voltage is stabilized on the defined voltage, and then the charging device is changed to parallel connected stabilizer, thereby capturing the maximum output current of the output current from the charger or USB as the constant current charging current and realizing fastest charging.
Description
Affiliated technical field
The present invention relates to charger (power supply adaptor) and charging device (hand-held pusher side charging control circuit), especially charger and the charging device behind (YD/T-1591-2006 mobile phone charger and interfacing require and method of testing) standard implementation.
Background technology
In YD/T-1591-2006 mobile phone charger and interfacing requirement and the method for testing: the hand-held pusher side connecting interface electric property of 4.2.3.1 requires:
(1) hand-held set charging inlet DC input voitage is: 5V ± 5%; The absorption maximum electric current is: 1800mA.Regardless of the power output of charger, hand-held pusher side charging control circuit should be able to be implemented safe charging according to self-demand, the phenomenon that overheated, burning, blast and other circuit damage should not occur.
(2) hand-held pusher side charging control circuit should possess protective arrangement for limiting output voltage.The hand-held set charging inlet if can not guarantee safe charging, should start protection when importing the above voltage of 6Vdc, under unexpected voltage condition, the phenomenon that overheated, burning, blast and other circuit damage should not occur.After the recovery, hand-held set should be able to operate as normal.
(3) when the electric supply installation that is connected was the charger (as computer or the built-in USB A series interfaces of pocket computer) of non-standard code, it was 500mA that hand-held pusher side should limit the absorption maximum electric current.
Absorption current is to the fail safe of electric supply installation when (4) considering the hand-held set charging of having produced and sold before this standard implementation, if the designer should consider the safe charging measure that the hand-held set of having sold does not possess this standard code carefully, the designer is when this standard of employing, should select the physical Design of hand-held set and the connection cable charging inlet different with former design, or on connection cable, install identification, current limiting control apparatus additional, the misoperation generation is dangerous in use to prevent the user.
4.2.3.2 charger side interface requirement
(1) USB (universal serial bus) of charger side (with reference to USB A series) as shown in Figure 5.Wherein VBus is the positive pole in output DC source, GND be the output DC source negative pole ().D+ should and not be connected with other any part of charger at the inner short circuit of charger with D-.As a specific connection,, hand-held pusher side is the charger apparatus of this standard definition so that can discerning the USB (universal serial bus) (with reference to USB A series) that is connected.
(2) rated voltage of charger output is 5V; Output current scope: 300mA-1800mA, the charger product should identify concrete rated output voltage, current value.
This standard code is to deviate from mutually with " power supply adaptor current-limiting type " charging of conventional portable product, and the rated voltage of charger output is 5V ± 5%; Output current scope 300mA-1800mA deviates from mutually with constant current charge.Therefore the problem that produces in this standard procedure of using is: charger and USB output current that this charging device must be adapted to the current limliting output of 300mA-1800mA have 100mA and 500mA energy operate as normal, and the power that bears of the switching tube in this charging device (adjusting pipe) might be up to 4 watts (1.8A* (5.25V-3V) V=4.05W), and design brings difficulty to large current charge.
The charging device solution is that three kinds of constant current modes of 100mA, 500mA and self-defined electric current are changed automatically, cooperated with voltage, temperature and chip thermostatic control electric current etc. and finish by testing circuit at present, when the power supply adaptor output current between 100mA and 500mA or 500mA and self-defined between the time select smaller value charging or pulse current charge and chip thermostatic control electric current automatically, the capital prolongs the charging interval, reduces charge efficiency.Chip thermostatic control electric current is difficult to realize large current charge.
Summary of the invention
The technical problem to be solved in the present invention: the deficiencies in the prior art part, and solution is proposed.Automatically change current charge and pulse current charge deficiency in order to overcome charging device multi-stage constant current pattern, propose when charger or USB output current during less than the constant current charge electric current of charging device setting, the maximum current that can catch charger or USB output current is the charging device of charging current.In order to solve large current charge, the charger of staged multivoltage output current restriction is proposed, the big more voltage of output current is just low more, exports with regard to constant current when electric current reaches maximum current limit value.
The technical solution adopted for the present invention to solve the technical problems is: the input at charging device is provided with relatively input terminal voltage of a voltage detecting comparison amplifying circuit, when continuous current that the maximum output current of charger or USB output current is provided with less than charging device, charging device drags down charger or USB output voltage, low when input is provided with voltage, control this charging device and begin to reduce charging current, making input terminal voltage be stabilized in this is provided with on the voltage, this moment, charging device became shunt regulator, thereby the maximum output current that captures charger or USB output current is the constant current charge electric current, realizes the fastest charging.In charger, a plurality of current detecting points (I1-In) and a maximum current limit constant current point (Icc) are set, the corresponding respectively control output voltage (V1-Vn) of current detecting point, the big more voltage of electric current is just low more, exports with regard to constant current when electric current reaches maximum current limit point.Realize little electric current high voltage output and big current low voltage output.The power that bears of the switching tube in the charging device (adjusting pipe) is controlled in the safe range.Make the power that bears of switching tube in the charging device (adjusting pipe) drop to minimumly, it is maximum that chip thermostatic control charging current reaches, and realize charging the fastest, maximal efficiency.
Adopt such scheme, the maximum output current that charging device can capture charger or USB output current automatically is a charging current, realizes the fastest charging.Charger is from motion tracking output current size when large current charge, automatically key is put in order output voltage, make the power that bears of switching tube in the charging device (adjusting pipe) drop to minimumly, it is maximum that chip thermostatic control charging current reaches, and realize charging the fastest, maximal efficiency.
Claims (4)
- After 1. enforcement (YD/T-1591-2006 mobile phone charger and interfacing require and method of testing) standard, the solution of a kind of charger and charging device:Comprise charger, it is characterized in that: the output of staged multivoltage, the big more voltage of output current is just low more, exports with regard to constant current when electric current reaches maximum current limit value.Comprise charging device, it is characterized in that: the input at charging device is provided with relatively input terminal voltage of a voltage detecting comparison amplifying circuit, when continuous current that the maximum output current of charger or USB output current is provided with less than charging device, charging device drags down charger or USB output voltage, low when input is provided with voltage, control this charging device and begin to reduce charging current, making input terminal voltage be stabilized in this is provided with on the voltage, this moment, charging device became shunt regulator, thereby the maximum output current that captures charger or USB output current is the constant current charge electric current, realizes the fastest charging.
- 2. according to the described charger of claim 1, it is characterized in that: comprise the above staged multivoltage output in two rank and two rank, the big more voltage of output current is just low more, exports with regard to constant current when electric current reaches maximum current limit value.
- 3. according to the described charging device of claim 1, it is characterized in that: when the continuous current that is provided with less than charging device when the maximum output current of charger or USB output current, charging device becomes shunt regulator.
- 4. according to the described charging device of claim 1, it is characterized in that: the maximum output current that can capture charger or USB output current is the constant current charge electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100766449A CN101162848A (en) | 2007-08-31 | 2007-08-31 | Resolving scheme of charger and charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100766449A CN101162848A (en) | 2007-08-31 | 2007-08-31 | Resolving scheme of charger and charging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101162848A true CN101162848A (en) | 2008-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100766449A Pending CN101162848A (en) | 2007-08-31 | 2007-08-31 | Resolving scheme of charger and charging equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN101162848A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015074378A1 (en) * | 2013-11-19 | 2015-05-28 | 惠州Tcl移动通信有限公司 | Quick charging terminal |
| CN104795858A (en) * | 2015-03-27 | 2015-07-22 | 小米科技有限责任公司 | Charging method and device |
| CN105896679A (en) * | 2016-05-31 | 2016-08-24 | 合肥联宝信息技术有限公司 | Charging control method and electronic equipment employing same |
-
2007
- 2007-08-31 CN CNA2007100766449A patent/CN101162848A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015074378A1 (en) * | 2013-11-19 | 2015-05-28 | 惠州Tcl移动通信有限公司 | Quick charging terminal |
| US9509160B2 (en) | 2013-11-19 | 2016-11-29 | Huizhou Tcl Mobile Communication Co., Ltd. | Fast charging terminal |
| CN104795858A (en) * | 2015-03-27 | 2015-07-22 | 小米科技有限责任公司 | Charging method and device |
| CN105896679A (en) * | 2016-05-31 | 2016-08-24 | 合肥联宝信息技术有限公司 | Charging control method and electronic equipment employing same |
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080416 |