CN105429241A - Charging circuit and charging device - Google Patents
Charging circuit and charging device Download PDFInfo
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- CN105429241A CN105429241A CN201511010113.0A CN201511010113A CN105429241A CN 105429241 A CN105429241 A CN 105429241A CN 201511010113 A CN201511010113 A CN 201511010113A CN 105429241 A CN105429241 A CN 105429241A
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- 238000012544 monitoring process Methods 0.000 claims description 16
- 238000013461 design Methods 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000003247 decreasing effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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Classifications
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- H02J7/0072—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- H02J2007/10—
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the technical field of electronic circuits, and particularly relates to a charging circuit and a charging device. The charging circuit comprises a main charging IC and at least one auxiliary charging IC in parallel connection with the main charging IC, wherein the main charging IC is provided with a power input end, a power output end and a charging end; each auxiliary charging IC is provided with a power input end and a charging end; the power output end of the main charging IC is in parallel connection with power input ends of the auxiliary charging ICs respectively; the charging end of the main charging IC is in parallel connection with the charging end of the auxiliary charging IC; and the power input end of the main charging IC is also connected with a connector for being connected with an external power supply for providing power for the charging circuit. The main charging IC is matched with multiple auxiliary charging ICs, each IC has the same voltage due to a parallel connection mode, the auxiliary charging ICs can be increased and decreased flexibly and conveniently according to the charging current of the charged device, over large power on a single IC to result in over high heating can be avoided, and meanwhile, due to the modular design, each device can work at a low power mode.
Description
Technical field
The present invention relates to electronic circuit technology field, be specifically related to a kind of charging circuit and charging device.
Background technology
Existing charging modes be single or two fill integrated circuit (IntegratedCircuit, IC).Single IC is direct step-down charging, if the direct step-down of the direct civil power by 220V is the voltages such as 5V, 9V and 12V, is terminal equipment charging, when for two IC, general employing series system charging, the supply current in each IC is identical, but voltage is distributed by two IC.
But, adopt aforesaid way to be difficult to heating problem when solving high-voltage charging, thus cause charge power not high.Be unfavorable for large current charge, namely quick charge loss is very large.
Summary of the invention
Embodiments provide a kind of charging circuit and charging device, adopt modular patten's design main charging IC and auxiliary charging IC, can add and reduce auxiliary charging IC easily, and can avoid the power on single IC excessive cause heating too high, meanwhile, modular design also can ensure that each devices function is at low-power mode.
In view of this, embodiment of the present invention first aspect provides a kind of charging circuit, can comprise: at least one auxiliary charging IC of main charging IC and main charging IC parallel connection, main charging IC is provided with power input, power output end and charging end, auxiliary charging IC is provided with power input and charging end, the power output end of main charging IC is in parallel with the power input of the auxiliary IC that charges respectively, the charging end of main charging IC is in parallel with the charging end of the auxiliary IC that charges, and it is the connector that charging circuit is powered that the power input of main charging IC is also connected with for connecting external power source.
As optionally, charging circuit also comprises: for controlling the processor of main charging IC and auxiliary charging IC operating state, processor is provided with control end, main charging IC and auxiliary charging IC is equipped with control end, and the control end of processor is in parallel with the control end of the main IC that charges and the control end of auxiliary charging IC respectively.
As optionally, processor is also provided with house dog end, main charging IC and auxiliary charging IC is equipped with house dog end, the control end of processor holds with the house dog of the main IC of charging respectively and the house dog of the auxiliary IC of charging is held in parallel.
As optionally, processor is also provided with the voltage controling end of the voltage for control inputs main charging IC, connector is also provided with the voltage controling end be electrically connected with the voltage controling end of processor.
As optionally, the voltage of processor control inputs main charging IC is 5V, 7V, 9V or 12V.
As optionally, processor being also provided with for monitoring by the monitoring side of the state information of charging device, being provided with the monitoring side be electrically connected with the monitoring side of processor by charging device.
As optionally, the control end of processor comprises universal input and exports (GeneralPurposeInputOutput, GPIO) port or twin wire universal serial bus (Inter-IntegratedCircuit, I
2c) port.
As optionally, main charging IC is also provided with the system power supply end for powering for charging circuit.
As optionally, the charging current of main charging IC and auxiliary charging IC is all not more than 2A, according to by the charging current a of charging device be by charging device distribute (a-2)/2 auxiliary charging IC, wherein, when (a-2)/2 are not integer, (a-2)/2 are rounded and adds integer 1.
Embodiment of the present invention second aspect also provides a kind of charging device, and this charging device comprises above-mentioned charging circuit.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages: adopt the multiple auxiliary charging IC of main charging IC collocation, adopt mode in parallel for be charged by charging device, auxiliary IC all adopts modular design, the voltage of each IC of the mode due to parallel connection is all identical, therefore can easily according to being increased and decreased auxiliary charging IC flexibly by the charging current of charging device, thus avoid that the power on single IC is excessive causes heating too high.Meanwhile, modular design also can ensure that each devices function is at low-power mode.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that of charging circuit in the embodiment of the present invention implements illustration.
Embodiment
Embodiments provide a kind of charging circuit and charging device, adopt modular patten's design main charging IC and auxiliary charging IC, can add and reduce auxiliary charging IC easily, and can avoid the power on single IC excessive cause heating too high, meanwhile, modular design also can ensure that each devices function is at low-power mode.
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Below be described in detail respectively.
Term " first ", " second ", " the 3rd " " 4th " etc. (if existence) in specification of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.The embodiments described herein should be appreciated that the data used like this can be exchanged in the appropriate case, so that can be implemented with the order except the content except here diagram or description.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or module that the process of series of steps or module, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or module.
Refer to Fig. 1, Fig. 1 is that of the charging circuit of the embodiment of the present invention implements illustration, as shown in Figure 1, the embodiment of the present invention provides a kind of charging circuit, can comprise: at least one auxiliary charging IC3 of main charging IC1 and main charging IC parallel connection, main charging IC is provided with power input, power output end and charging end, auxiliary charging IC is provided with power input and charging end, the power output end of main charging IC is in parallel with the power input of the auxiliary IC that charges respectively, the charging end of main charging IC is in parallel with the charging end of the auxiliary IC that charges, it is the connector 5 that charging circuit is powered that the power input of main charging IC is also connected with for connecting external power source.
Wherein, in FIG, the power input on main charging IC is PI end, and power output end is PO end, and charging end is V end; Power input on auxiliary charging IC is PI end, and charging end is V end, and the power input of connector is PI end, and the power output end of connector is PO end.
Can find out, adopt the multiple auxiliary charging IC of main charging IC collocation, adopt mode in parallel for be charged by charging device, auxiliary IC all adopts modular design, the voltage of each IC of the mode due to parallel connection is all identical, therefore can easily according to being increased and decreased auxiliary charging IC flexibly by the charging current of charging device, thus avoid that the power on single IC is excessive causes heating too high.Meanwhile, modular design also can ensure that each devices function is at low-power mode.
It should be understood that in main charging IC and auxiliary charging IC and not only comprise charging chip, also comprise the remaining circuit components and parts supporting this charging chip work, as electric capacity etc., equally, for processor, except chip itself, also comprise the remaining circuit element that all the other support this chip operation.
As optionally, charging circuit also comprises: for controlling the processor 2 of main charging IC and auxiliary charging IC operating state, processor is provided with control end, main charging IC and auxiliary charging IC is equipped with control end, and the control end of processor is in parallel with the control end of the main IC that charges and the control end of auxiliary charging IC respectively.
Wherein, in FIG, the control end on main charging IC is C end, and the control end on auxiliary charging IC is C end, and the control end on processor is C end.
Wherein, the effect of control end is to make processor can open and close main charging IC and auxiliary charging IC, thus realizes the increase and decrease of corresponding auxiliary charging IC.
As optionally, this processor can be micro-control unit (MicrocontrollerUnit, MCU), processor is also provided with house dog end, main charging IC and auxiliary charging IC is equipped with house dog end, the control end of processor holds with the house dog of the main IC of charging respectively and the house dog of the auxiliary IC of charging is held in parallel.
Wherein, in FIG, the house dog end on processor is W end in Fig. 1, and the house dog end of main charging IC is W end, and the house dog end of auxiliary charging IC is W end.
Be understandable that, after being provided with this house dog end, MCU regularly can send the signal of to main charging IC and auxiliary charging IC, as long as receive this signal then represent that MCU is in normal operating conditions, a timer can be set, once not receive the signal of MCU transmission within the predetermined time, then represent that MCU operating state is abnormal, now need to reset to MCU, program generation endless loop can be prevented, cause the situation that MCU crashes.
As optionally, processor is also provided with the voltage controling end of the voltage for control inputs main charging IC, connector is also provided with the voltage controling end be electrically connected with the voltage controling end of processor.
Wherein, in FIG, the voltage controling end of processor is VC end, also to should voltage controling end be had on connector, i.e. and VC end.
As optionally, the voltage of processor control inputs main charging IC is 5V, 7V, 9V or 12V.
Be understandable that, the voltage controling end that processor is arranged makes charging circuit corresponding voltage can be selected to charge according to by the voltage of charging device, the scope of application of intensified charging circuit.
For example, the voltage of control can be 5V, 7V, 9V or 12V etc., and when being 5V or 7V by the voltage of charging device, as the equipment such as mobile phone, MP3, then the voltage of charging circuit can be automatically set as 5V or 7V; When being 9V or 12V by the voltage of charging device, as equipment such as panel computers, then the voltage of charging circuit can be automatically set as 9V or 12V.
As optionally, processor being also provided with for monitoring by the monitoring side of the state information of charging device 4, being provided with the monitoring side be electrically connected with the monitoring side of processor by charging device.
Wherein, in FIG, being V end by the charging end of charging device, is A end by the monitoring side of charging device; The monitoring side of processor is A end.
Be understandable that, if when being only battery by charging device, thering is no the control circuit restriction input responded, then needing by this monitoring side to battery monitoring, as monitored the electricity of battery, automatically stopping power supply after battery electric quantity is filled.
As optionally, the control end of processor comprises universal input and exports GPIO port or I
2c port.
Be understandable that, control end can adopt GPIO port or I
2c port is as the port of sending controling instruction.
As optionally, main charging IC is also provided with the system power supply end for powering for charging circuit.
Wherein, main charging IC, except for being charged by charging device, also can be the system power supply of whole charging circuit, such as, components and parts in processor and other charging circuit.
As optionally, the charging current of main charging IC and auxiliary charging IC is all not more than 2A, according to by the charging current a of charging device be by charging device distribute (a-2)/2 auxiliary charging IC, wherein, when (a-2)/2 are not integer, (a-2)/2 are rounded and adds integer 1.
Wherein, in order to ensure that the power of each charging IC is no more than certain value, namely prevent the heat condition of the too high appearance of charging IC power from having a strong impact on power supply conversion efficiency, therefore the charging current of main charging IC and auxiliary charging IC all can be not more than 2A, to ensure the situation preventing power too high, concrete, can according to being determined the quantity specifically will distributing auxiliary charging IC by the charging current a of charging device, can be such as (a-2)/2, wherein, (a-2)/2 when being integer, then the quantity of the IC of auxiliary charging is (a-2)/2, when (a-2)/2 are not integer, as a be 4.8A time, (a-2)/2 is 1.4, now round 1.4 and obtain 1, then on the basis of 1, add the quantity that 1 obtains final auxiliary charging IC.
The charging circuit of the embodiment of the present invention adopts a main charging IC to be responsible for system power supply, when the quantity sum of main charging IC and auxiliary charging IC is N, main charging IC share 1/N by charging current, when needed by charging device more big current time, can according to the auxiliary charging IC of electric current reallocation increased, these auxiliary charging IC increased share the electric current increased by charging device.Same principle, when charge-current demands continues to increase time, then increases N number of charging IC, and ensures that the charging current on each charging IC can not be greater than 2A.The electric current of single charging IC can be avoided so excessive, be conducive to the difficulty reducing device layout.Ensure that the charge efficiency of device is in highest level simultaneously.Effectively avoid heating.
Be described above the charging circuit of the embodiment of the present invention, introduce the charging device of the charging circuit adopting the embodiment of the present invention below, this charging device comprises aforesaid charging circuit, this charging device can be charger for mobile phone and panel computer charger etc., and charging plug can be two-pin plug or three-pin plug.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a charging circuit, it is characterized in that: described charging circuit comprises at least one auxiliary charging IC of main charge integrated circuit IC and described main charging IC parallel connection, described main charging IC is provided with power input, power output end and charging end, described auxiliary charging IC is provided with power input and charging end, the power output end of described main charging IC is in parallel with the power input of the described auxiliary IC that charges respectively, the charging end of described main charging IC is in parallel with the charging end of the described auxiliary IC that charges, it is the connector that described charging circuit is powered that the power input of described main charging IC is also connected with for connecting external power source.
2. charging circuit according to claim 1, it is characterized in that, described charging circuit also comprises: for controlling the processor of described main charging IC and described auxiliary charging IC operating state, described processor is provided with control end, described main charging IC and described auxiliary charging IC is equipped with control end, and the control end of described processor is in parallel with the control end of the described main IC of charging and the control end of the described auxiliary IC that charges respectively.
3. charging circuit according to claim 2, it is characterized in that: described processor is also provided with house dog end, described main charging IC and described auxiliary charging IC is equipped with house dog end, the control end of described processor holds with the house dog of the described main IC of charging respectively and the house dog of the described auxiliary IC of charging is held in parallel.
4. charging circuit according to claim 2, it is characterized in that: the voltage controling end described processor being also provided with the voltage for charging IC main described in control inputs, described connector is also provided with the voltage controling end be electrically connected with the voltage controling end of described processor.
5. charging circuit according to claim 4, is characterized in that: described in described processor control inputs, the voltage of main charging IC is 5V, 7V, 9V or 12V.
6. charging circuit according to claim 2, is characterized in that: described processor is also provided with for monitoring by the monitoring side of the state information of charging device, is describedly provided with the monitoring side be electrically connected with the monitoring side of described processor by charging device.
7. the charging circuit according to any one of claim 2 to 6, is characterized in that: the control end of described processor comprises universal input and exports GPIO port or I
2c port.
8. charging circuit according to any one of claim 1 to 6, is characterized in that: described main charging IC is also provided with the system power supply end for powering for described charging circuit.
9. charging circuit according to any one of claim 1 to 6, it is characterized in that: the charging current of described main charging IC and auxiliary charging IC is all not more than 2A, according to described by the charging current a of charging device be described by charging device distribute (a-2)/2 auxiliary charging IC, wherein, when described (a-2)/2 are not integer, described (a-2)/2 are rounded and adds integer 1.
10. a charging device, is characterized in that: described charging device comprises the charging circuit according to any one of claim 1 to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511010113.0A CN105429241B (en) | 2015-12-25 | 2015-12-25 | A kind of charging circuit and charging unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511010113.0A CN105429241B (en) | 2015-12-25 | 2015-12-25 | A kind of charging circuit and charging unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105429241A true CN105429241A (en) | 2016-03-23 |
| CN105429241B CN105429241B (en) | 2018-11-02 |
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ID=55507254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511010113.0A Active CN105429241B (en) | 2015-12-25 | 2015-12-25 | A kind of charging circuit and charging unit |
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| Country | Link |
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| CN (1) | CN105429241B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160098A (en) * | 2016-07-28 | 2016-11-23 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN107437828A (en) * | 2016-05-25 | 2017-12-05 | 中兴通讯股份有限公司 | Charging method, device and equipment |
| WO2018018944A1 (en) * | 2016-07-28 | 2018-02-01 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN114336843A (en) * | 2021-12-28 | 2022-04-12 | 歌尔科技有限公司 | Chargeable terminal equipment and charging system thereof |
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|---|---|---|---|---|
| US20120091959A1 (en) * | 2011-10-06 | 2012-04-19 | Ford Global Technologies, Llc | Vehicle guidance system with interface |
| CN103972969A (en) * | 2013-01-29 | 2014-08-06 | 国家电网公司 | Charging pile |
| CN104300630A (en) * | 2014-10-17 | 2015-01-21 | 广东欧珀移动通信有限公司 | Charging control device and method |
-
2015
- 2015-12-25 CN CN201511010113.0A patent/CN105429241B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120091959A1 (en) * | 2011-10-06 | 2012-04-19 | Ford Global Technologies, Llc | Vehicle guidance system with interface |
| CN103972969A (en) * | 2013-01-29 | 2014-08-06 | 国家电网公司 | Charging pile |
| CN104300630A (en) * | 2014-10-17 | 2015-01-21 | 广东欧珀移动通信有限公司 | Charging control device and method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107437828A (en) * | 2016-05-25 | 2017-12-05 | 中兴通讯股份有限公司 | Charging method, device and equipment |
| CN107437828B (en) * | 2016-05-25 | 2022-09-16 | 中兴通讯股份有限公司 | Charging method, device and equipment |
| CN106160098A (en) * | 2016-07-28 | 2016-11-23 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN106160098B (en) * | 2016-07-28 | 2018-01-23 | 广东欧珀移动通信有限公司 | Mobile terminal |
| WO2018018944A1 (en) * | 2016-07-28 | 2018-02-01 | 广东欧珀移动通信有限公司 | Mobile terminal |
| CN114336843A (en) * | 2021-12-28 | 2022-04-12 | 歌尔科技有限公司 | Chargeable terminal equipment and charging system thereof |
| CN114336843B (en) * | 2021-12-28 | 2024-06-07 | 歌尔科技有限公司 | Chargeable terminal equipment and charging system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105429241B (en) | 2018-11-02 |
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