CN103647318A - Communication terminal, and charging control method, apparatus, and circuit - Google Patents
Communication terminal, and charging control method, apparatus, and circuit Download PDFInfo
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- CN103647318A CN103647318A CN201310649049.5A CN201310649049A CN103647318A CN 103647318 A CN103647318 A CN 103647318A CN 201310649049 A CN201310649049 A CN 201310649049A CN 103647318 A CN103647318 A CN 103647318A
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Abstract
The embodiment of the invention discloses a communication terminal, and a charging control method, apparatus, and circuit. The communication terminal comprises a controller a voltage adjusting chip, and a charging management chip; the controller is respectively connected with the voltage adjusting chip and the charging management chip; and the voltage adjusting chip and the charging management chip are connected. The controller is used for detecting the voltage at the input terminal of the charging management chip; if the voltage at the input terminal of the charging management chip is deviated from a rated voltage, the voltage adjusting chip is controlled to adjust the voltage at the output terminal of the voltage adjusting chip to the rated voltage. The voltage adjusting chip is used for adjusting the voltage at the output terminal of the voltage adjusting chip to the rated voltage under the control of the controller and outputting the rated voltage to the input terminal of the charging management chip. And the charging management chip is used for charging a batter at the rated voltage. According to the embodiment of the invention, heavy-current rapid charging can be realized.
Description
Technical field
The present invention relates to communication field, particularly a kind of communicating terminal, charge control method, device and circuit.
Background technology
On market, the function of communicating terminal becomes increasingly abundant now, take smart mobile phone as example, and the function of mobile phone terminal is abundanter, and power consumption is just larger, also more and more higher to the demand of large electric weight battery.Along with the increase of battery electric quantity, the charging interval can increase accordingly.For reducing the charging interval, the method generally adopting is at present to improve charging current.
In prior art, adopt charger to charge the phone, i.e. the electric current of charger output charges to battery after the charging management chip of mobile phone terminal inside.At present, the charging current of mobile phone is generally 1A(peace) left and right, maximum can reach 2.6A, realize larger charging current more difficult, reason is that the impedance comparison between from charger to charging management chip is large, this impedance can only reduce to eliminate, even if optimize best impedance on market now, also this line impedance cannot be controlled in 300m Ω (milliohm).
Because the impedance comparison between from charger to charging management chip is large, voltage causing from charger to the circuit between charging management chip can decline, for example, if adopt the charger of 5V, when electric current increases to 2A when above, more than the pressure drop meeting on circuit increases to 0.5V; If electric current increases to 3A, the pressure drop meeting on circuit reaches 1V left and right.Hence one can see that, due to the existence of pressure drop on circuit, can cause the voltage of charging management chip input to be less than the required rated voltage of its normal work, thereby cause prior art cannot meet the demand of large electric current quick charge.
Summary of the invention
A kind of communicating terminal, charge control method, device and circuit are provided in the embodiment of the present invention, to solve prior art, cannot have carried out the problem of large electric current quick charge.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses following technical scheme:
First aspect, a kind of communicating terminal is provided, it is characterized in that, described communicating terminal comprises: controller, voltage-regulation chip, charging management chip, wherein, described controller is connected with described charging management chip with described voltage-regulation chip respectively, and described voltage-regulation chip is connected with described charging management chip;
Described controller, voltage for detection of described charging management chip input, if the voltage deviation rated voltage of described charging management chip input, control described voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage;
Described voltage-regulation chip, under the control of described controller by the voltage-regulation of described voltage-regulation chip output to described rated voltage, and export described rated voltage to described charging management chip input;
Described charging management chip, for charging the battery by described rated voltage.
In conjunction with first aspect, in the possible implementation of the first of first aspect,
Described controller, if be less than described rated voltage specifically for the voltage of described charging management chip input, controls the processing of boosting of described voltage-regulation chip, so that described voltage-regulation chip output is exported described rated voltage; If the voltage of described charging management chip input is greater than described rated voltage, controls described voltage-regulation chip and carry out step-down processing, so that described voltage-regulation chip output is exported described rated voltage.
In conjunction with first aspect, or the first of first aspect possibility implementation, in the possible implementation of the second of first aspect, described communicating terminal also comprises: charger, described charger is connected with described voltage-regulation chip, the received power that the power output of described charger is described communicating terminal.
In conjunction with first aspect, or the first of first aspect possibility implementation, or the second of first aspect possibility implementation, in the third possible implementation of first aspect, the received power of described communicating terminal is greater than the power output of described voltage-regulation chip.
Second aspect, provides a kind of charge control method, and described charge control method comprises:
Detect the voltage of charging management chip input;
If the voltage deviation rated voltage of described charging management chip input, control described voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage, so that described voltage-regulation chip exports described rated voltage to charging management chip input, and described charging management chip is charged the battery by described rated voltage.
In conjunction with second aspect, in the possible implementation of the first of second aspect, the described voltage-regulation chip of described control to described rated voltage, comprises the voltage-regulation of described voltage-regulation chip output:
If the voltage of described charging management chip input is less than described rated voltage, control the processing of boosting of described voltage-regulation chip, so that described voltage-regulation chip output is exported described rated voltage;
If the voltage of described charging management chip input is greater than described rated voltage, controls described voltage-regulation chip and carry out step-down processing, so that described voltage-regulation chip output is exported described rated voltage.
The third aspect, also provides a kind of battery charge controller, and described battery charge controller comprises:
Detecting unit, for detection of the voltage of charging management chip input;
Control unit, if the voltage deviation rated voltage of described charging management chip input detected for described detecting unit, control described voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage, so that described voltage-regulation chip exports described rated voltage to charging management chip input, and described charging management chip is charged the battery by described rated voltage.
In conjunction with the third aspect, in the possible implementation of the first of the third aspect, described control unit comprises:
Boosting rectifier control subelement, if the voltage of described charging management chip input detected for described detecting unit, be less than described rated voltage, control the processing of boosting of described voltage-regulation chip, so that described voltage-regulation chip output is exported described rated voltage;
Subelement is controlled in step-down, if the voltage of described charging management chip input detected for described detecting unit, be greater than described rated voltage, control described voltage-regulation chip and carry out step-down processing, so that described voltage-regulation chip output is exported described rated voltage.
Fourth aspect, a kind of charging control circuit is provided, described charging control circuit comprises: control module, Voltage Regulator Module and charge management module, wherein, described control module is connected with described charge management module with described Voltage Regulator Module respectively, and described Voltage Regulator Module is connected with described charge management module;
Described control module, voltage for detection of described charge management module input, if the voltage deviation rated voltage of described charge management module input, control described Voltage Regulator Module by the voltage-regulation of described Voltage Regulator Module output to described rated voltage;
Described Voltage Regulator Module, under the control of described control module by the voltage-regulation of described Voltage Regulator Module output to described rated voltage, and export described rated voltage to described charge management module input;
Described charge management module, for charging the battery by described rated voltage.
In conjunction with fourth aspect, in the possible implementation of the first of fourth aspect, described control module, if the voltage specifically for described charge management module input is less than described rated voltage, control the processing of boosting of described Voltage Regulator Module, so that described Voltage Regulator Module output is exported described rated voltage; If the voltage of described charge management module input is greater than described rated voltage, controls described Voltage Regulator Module and carry out step-down processing, so that described Voltage Regulator Module output is exported described rated voltage.
In the embodiment of the present invention, controller is for detection of the voltage of charging management chip input, if the voltage deviation rated voltage of charging management chip input, control voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage, voltage-regulation chip is for exporting rated voltage to charging management chip input, charging management chip, for charging the battery by rated voltage.The embodiment of the present invention is by detecting the voltage of charging management chip input, control voltage-regulation chip and carry out voltage-regulation processing, to provide rated voltage to charge management module input, thereby overcome the excessive drawback of line drop causing due to charger to the impedance between charging management chip in prior art, can realize large electric current quick charge; And, due to stable rated voltage being provided to charging management chip, therefore avoided the infringement of high voltage to charging management chip.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1A is an embodiment block diagram of communicating terminal of the present invention;
Figure 1B is another embodiment block diagram of communicating terminal of the present invention;
Fig. 2 is the embodiment block diagram of charging control circuit of the present invention;
Fig. 3 is the embodiment flow chart of charge control method of the present invention;
Fig. 4 A is the embodiment block diagram of battery charge controller of the present invention;
Fig. 4 B is the embodiment block diagram of control unit in Fig. 4 A.
Embodiment
The present invention following embodiment provide a kind of communicating terminal, charge control method, device and circuit, to realize large electric current quick charge.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out to clear, complete description, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Figure 1A, be an embodiment block diagram of communicating terminal of the present invention:
This communicating terminal comprises: controller 101, voltage-regulation chip 102 and charging management chip 103.Wherein, described controller 101 is connected with described charging management chip 103 with described voltage-regulation chip 102 respectively, and described voltage-regulation chip 102 is connected with described charging management chip 103.
Described controller 101, voltage for detection of described charging management chip input, if the voltage deviation rated voltage of described charging management chip input, control described voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage;
Described voltage-regulation chip 102, under the control of described controller by the voltage-regulation of described voltage-regulation chip output to described rated voltage, and export described rated voltage to described charging management chip input;
Described charging management chip 103, for charging the battery by described rated voltage.
Referring to Figure 1B, be another embodiment block diagram of communicating terminal of the present invention:
Consistent with the communicating terminal shown in Figure 1A, this communicating terminal comprises: controller 101, voltage-regulation chip 102, charging management chip 103; Further, this communicating terminal also comprises charger 104 and battery 105.Wherein, described controller 101 is connected with described charging management chip 103 with described voltage-regulation chip 102 respectively, described voltage-regulation chip 102 is connected with described charging management chip 103, described charger 104 is connected with described voltage-regulation chip 102, the power output of described charger 104 is the received power of described communicating terminal, and described charging management chip 103 is connected with battery 105.
Described controller 101, voltage for detection of described charging management chip input, if the voltage deviation rated voltage of described charging management chip input, control described voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage;
Described voltage-regulation chip 102, under the control of described controller by the voltage-regulation of described voltage-regulation chip output to described rated voltage, and export described rated voltage to described charging management chip input;
Described charging management chip 103, for charging the battery by described rated voltage;
Described battery 105, for giving described communicating terminal power supply.
Wherein, described controller 101, if can be less than specifically for the voltage of described charging management chip input described rated voltage, controls the processing of boosting of described voltage-regulation chip, so that described voltage-regulation chip output is exported described rated voltage; If the voltage of described charging management chip input is greater than described rated voltage, controls described voltage-regulation chip and carry out step-down processing, so that described voltage-regulation chip output is exported described rated voltage.
In the embodiment of the present invention, voltage-regulation chip 102 can be specially buck (BUCK & BOOST) chip.
In the present embodiment, the existence of the line loss causing due to line drop, the received power of described communicating terminal can be greater than the power output of described voltage-regulation chip 102, wherein, the received power of described communicating terminal is the received power at A point place in Figure 1A, be the power output that power P that charger 104 provides can be greater than the voltage-regulation chip 102 in communicating terminal, meet following formula:
P> (V
c-V
line drop) * I
out* n%
In the embodiment of the present invention, voltage-regulation chip 102 can be arranged near charging management chip 103, to reduce from voltage-regulation chip 102 to the impedance between charging management chip 103.In embodiments of the present invention, from voltage-regulation chip 102 to the impedance between charging management chip 103, can think to ignore.
The disclosed communicating terminal of the embodiment of the present invention, by detecting the voltage of charging management chip input, control voltage-regulation chip boosts and processes or step-down processing, overcome the excessive drawback of line drop causing due to charger to the impedance between charging management chip, realized large electric current quick charge; And due to stable rated voltage being provided to charging management chip, therefore avoided the infringement of high voltage to charging management chip.
Corresponding with the embodiment of communicating terminal of the present invention, the present invention also provides the embodiment of charging control circuit, charge control method and battery charge controller.
Referring to Fig. 2, be the embodiment block diagram of charging control circuit of the present invention:
This charging control circuit comprises: control module 201, Voltage Regulator Module 202 and charge management module 203.Wherein, described control module 201 is connected with described charge management module 203 with described Voltage Regulator Module 202 respectively, and described Voltage Regulator Module 202 is connected with described charge management module 203.
In the embodiment of the present invention, Voltage Regulator Module 202 can be arranged near charge management module 203, to reduce from Voltage Regulator Module 202 to the impedance between charge management module 203.In embodiments of the present invention, from Voltage Regulator Module 202 to the impedance between charge management module 203, can think to ignore.
Described control module 201, voltage for detection of described charge management module input, if the voltage deviation rated voltage of described charge management module input, control described Voltage Regulator Module by the voltage-regulation of described Voltage Regulator Module output to described rated voltage;
Described Voltage Regulator Module 202, under the control of described control module by the voltage-regulation of described Voltage Regulator Module output to described rated voltage, and export described rated voltage to described charge management module input;
Described charge management module 203, for charging the battery by described rated voltage.
In the embodiment of the present invention, rated voltage is generally 5V.
Wherein, described control module 201, if can be less than specifically for the voltage of described charge management module input described rated voltage, controls the processing of boosting of described Voltage Regulator Module, so that described Voltage Regulator Module output is exported described rated voltage; If the voltage of described charge management module input is greater than described rated voltage, controls described Voltage Regulator Module and carry out step-down processing, so that described Voltage Regulator Module output is exported described rated voltage.
In the embodiment of the present invention, Voltage Regulator Module 202 is buck (BUCK & BOOST) module specifically.
The charging control circuit of the embodiment of the present invention, by detecting the voltage of charge management module input, control described Voltage Regulator Module output voltage is adjusted to rated voltage, overcome the excessive drawback of line drop causing due to charger to the impedance between charge management module, can realize large electric current quick charge, simultaneously; And due to stable rated voltage being provided to charge management module, also therefore avoided the infringement of high voltage to charge management module.
The charging control circuit control Voltage Regulator Module that describes the embodiment of the present invention below in detail is boosted and step-down, to realize the process of large electric current quick charge:
With reference to figure 2, it is that the large current charge module (not shown in Fig. 2) of 5V realizes quick charge that the charging control circuit of the embodiment of the present invention can coordinate rated voltage, and this charging module can be connected with Voltage Regulator Module 202.
If charging module is rated output voltage, be the large current charge device of 5V, the output voltage of charger is actual is 5V ± 5%.Due to from charger to the line impedance between charge management module 203 and use large current charge, line drop is larger, so the voltage of charge management module 203 inputs is less than rated voltage 5V conventionally.
When the voltage that control module 201 detects charge management module 203 inputs is less than rated voltage 5V, control Voltage Regulator Module 202 processing of boosting; Voltage Regulator Module 202 output rated voltage 5V are to charge management module 203; Charge management module 203, by described rated voltage, adopts large electric current to charge the battery.
In the charging control circuit of the embodiment of the present invention, when the output voltage of the charging module adopting is that rated voltage and output current are while being large electric current, Voltage Regulator Module 202 processing of boosting, overcome the excessive drawback of line drop causing due to charging module to the impedance between charge management module 203, realize large electric current quick charge, shortened the charging interval.
With reference to figure 2, when the charging control circuit of the embodiment of the present invention is used in conjunction with rated output voltage and is greater than the charging module of 5V, also can normally work and realize large electric current quick charge, be described as follows:
The charging voltage providing due to charging module is larger, even if consider that, from charging module to the line impedance between charge management module 203, the voltage of charge management module 203 inputs still may be greater than rated voltage 5V; The voltage that control module 201 detects charge management module 203 inputs is greater than rated voltage 5V, controls Voltage Regulator Module 202 and carries out step-down processing; Voltage Regulator Module 202 output rated voltage 5V are to charge management module 203; Charge management module 203 is by described rated voltage and adopt large electric current to charge the battery.
In the charging control circuit of the embodiment of the present invention; when the output voltage of charging module is high voltage; control module 201 is controlled Voltage Regulator Module 202 and is carried out step-down processing; output rated voltage is to charge management module 203; avoided the infringement of high voltage to charge management module 203; also can avoid charge management module 203 under high voltage, to enter overvoltage protection state simultaneously, thereby realize large electric current quick charge, shorten the charging interval.
In the embodiment of the present invention, because Voltage Regulator Module 202 is boosted or has certain power loss when step-down processes, the line loss simultaneously causing due to the existence of line drop, for realizing quick charge, the power P that above-mentioned charging control circuit receives can be greater than the power output of the Voltage Regulator Module 202 in charging control circuit.
If the conversion efficiency of Voltage Regulator Module 202 is n%,
Wherein, V
line dropfor the line drop from charging module to Voltage Regulator Module 202, V
rated voltagefor the output voltage of Voltage Regulator Module 202, I
infor the output current of described Voltage Regulator Module 202, V
cfor the input voltage of described charging control circuit, I
outinput current for described charging control circuit.
If the power P that charging control circuit receives is greater than the power output of the Voltage Regulator Module 202 in charging control circuit, need to meet following formula:
P>V
rated voltage* I
in(2)
By substitution formula (2) after formula (1) distortion, can draw
P> (V
c-V
line drop) * I
out* n% (3)
V
cfor the input voltage of described charging control circuit, can think the output voltage of charging module; I
outfor the input current of described charging control circuit, can think the output current of charging module; V
line dropcan measure, the conversion efficiency n% of Voltage Regulator Module 202 is preset parameters, therefore, can estimate the input power P of charging control circuit by above-mentioned formula (3).In the embodiment of the present invention, the input power of charging control circuit is provided by charging module, therefore the input power of charging control circuit also can be thought and equals the power output of charger, by above-mentioned formula (3), can estimate the power output of charger, so that the charging module being used in combination with the charging control circuit of selection and the embodiment of the present invention.
Referring to Fig. 3, for the embodiment flow chart of charge control method of the present invention, known in conjunction with the description of previous embodiment, this charging control flow is the control procedure of aforementioned controller or control module execution:
Step 301: the voltage that detects charging management chip input.
Step 302: if the voltage deviation rated voltage of charging management chip input, control voltage-regulation chip by the voltage-regulation of voltage-regulation chip output to rated voltage, so that voltage-regulation chip exports rated voltage to charging management chip input, and charging management chip is charged the battery by rated voltage.
Concrete, if the voltage of described charging management chip input is less than described rated voltage, can control the processing of boosting of described voltage-regulation chip, so that described voltage-regulation chip output is exported described rated voltage; If the voltage of described charging management chip input is greater than described rated voltage, can controls described voltage-regulation chip and carry out step-down processing, so that described voltage-regulation chip output is exported described rated voltage.
Above-described embodiment is by detecting the voltage of charging management chip input, control voltage-regulation chip boosts and processes or step-down processing, overcome the excessive drawback of line drop causing due to charger to the impedance between charging management chip, realized large electric current quick charge; And due to stable rated voltage being provided to charging management chip, therefore avoided the infringement of high voltage to charging management chip.
Referring to Fig. 4 A, be the embodiment of battery charge controller of the present invention:
This battery charge controller comprises: detecting unit 410 and control unit 420.
Wherein, detecting unit 410, for detection of the voltage of charging management chip input;
Referring to Fig. 4 B, be the embodiment block diagram of control unit 420 in Fig. 4 A:
This control unit 420 can comprise:
Boosting rectifier control subelement 421, if the voltage of described charging management chip input detected for described detecting unit, be less than described rated voltage, control the processing of boosting of described voltage-regulation chip, so that described voltage-regulation chip output is exported described rated voltage;
As seen from the above-described embodiment, controller is for detection of the voltage of charging management chip input, if the voltage deviation rated voltage of charging management chip input, control voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage, voltage-regulation chip is for exporting rated voltage to charging management chip input, charging management chip, for charging the battery by rated voltage.The embodiment of the present invention is by detecting the voltage of charging management chip input, control voltage-regulation chip and carry out voltage-regulation processing, to provide rated voltage to charge management module input, thereby overcome the excessive drawback of line drop causing due to charger to the impedance between charging management chip in prior art, can realize large electric current quick charge; And, due to stable rated voltage being provided to charging management chip, therefore avoided the infringement of high voltage to charging management chip.
Those skilled in the art can be well understood to the mode that technology in the embodiment of the present invention can add essential common hardware by software and realize, common hardware comprises universal integrated circuit, universal cpu, general-purpose storage, universal elements etc., can certainly comprise that application-specific integrated circuit (ASIC), dedicated cpu, private memory, special-purpose components and parts etc. realize by specialized hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme in the embodiment of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in storage medium, as read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) method described in some part of execution each embodiment of the present invention or embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, each embodiment stresses is the difference with other embodiment.Especially, for system embodiment, because it is substantially similar in appearance to embodiment of the method, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.
Above-described embodiment of the present invention, does not form limiting the scope of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a communicating terminal, it is characterized in that, described communicating terminal comprises: controller, voltage-regulation chip, charging management chip, wherein, described controller is connected with described charging management chip with described voltage-regulation chip respectively, and described voltage-regulation chip is connected with described charging management chip;
Described controller, voltage for detection of described charging management chip input, if the voltage deviation rated voltage of described charging management chip input, control described voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage;
Described voltage-regulation chip, under the control of described controller by the voltage-regulation of described voltage-regulation chip output to described rated voltage, and export described rated voltage to described charging management chip input;
Described charging management chip, for charging the battery by described rated voltage.
2. communicating terminal as claimed in claim 1, is characterized in that,
Described controller, if be less than described rated voltage specifically for the voltage of described charging management chip input, controls the processing of boosting of described voltage-regulation chip, so that described voltage-regulation chip output is exported described rated voltage; If the voltage of described charging management chip input is greater than described rated voltage, controls described voltage-regulation chip and carry out step-down processing, so that described voltage-regulation chip output is exported described rated voltage.
3. communicating terminal as claimed in claim 1 or 2, is characterized in that, described communicating terminal also comprises: charger, described charger is connected with described voltage-regulation chip, the received power that the power output of described charger is described communicating terminal.
4. the communicating terminal as described in claims 1 to 3 any one, is characterized in that, the received power of described communicating terminal is greater than the power output of described voltage-regulation chip.
5. a charge control method, is characterized in that, described charge control method comprises:
Detect the voltage of charging management chip input;
If the voltage deviation rated voltage of described charging management chip input, control described voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage, so that described voltage-regulation chip exports described rated voltage to charging management chip input, and described charging management chip is charged the battery by described rated voltage.
6. method as claimed in claim 5, is characterized in that, the described voltage-regulation chip of described control to described rated voltage, comprises the voltage-regulation of described voltage-regulation chip output:
If the voltage of described charging management chip input is less than described rated voltage, control the processing of boosting of described voltage-regulation chip, so that described voltage-regulation chip output is exported described rated voltage;
If the voltage of described charging management chip input is greater than described rated voltage, controls described voltage-regulation chip and carry out step-down processing, so that described voltage-regulation chip output is exported described rated voltage.
7. a battery charge controller, is characterized in that, described battery charge controller comprises:
Detecting unit, for detection of the voltage of charging management chip input;
Control unit, if the voltage deviation rated voltage of described charging management chip input detected for described detecting unit, control described voltage-regulation chip by the voltage-regulation of described voltage-regulation chip output to described rated voltage, so that described voltage-regulation chip exports described rated voltage to charging management chip input, and described charging management chip is charged the battery by described rated voltage.
8. battery charge controller as claimed in claim 7, is characterized in that, described control unit comprises:
Boosting rectifier control subelement, if the voltage of described charging management chip input detected for described detecting unit, be less than described rated voltage, control the processing of boosting of described voltage-regulation chip, so that described voltage-regulation chip output is exported described rated voltage;
Subelement is controlled in step-down, if the voltage of described charging management chip input detected for described detecting unit, be greater than described rated voltage, control described voltage-regulation chip and carry out step-down processing, so that described voltage-regulation chip output is exported described rated voltage.
9. a charging control circuit, it is characterized in that, described charging control circuit comprises: control module, Voltage Regulator Module and charge management module, wherein, described control module is connected with described charge management module with described Voltage Regulator Module respectively, and described Voltage Regulator Module is connected with described charge management module;
Described control module, voltage for detection of described charge management module input, if the voltage deviation rated voltage of described charge management module input, control described Voltage Regulator Module by the voltage-regulation of described Voltage Regulator Module output to described rated voltage;
Described Voltage Regulator Module, under the control of described control module by the voltage-regulation of described Voltage Regulator Module output to described rated voltage, and export described rated voltage to described charge management module input;
Described charge management module, for charging the battery by described rated voltage.
10. charging control circuit as claimed in claim 9, is characterized in that,
Described control module, if be less than described rated voltage specifically for the voltage of described charge management module input, controls the processing of boosting of described Voltage Regulator Module, so that described Voltage Regulator Module output is exported described rated voltage; If the voltage of described charge management module input is greater than described rated voltage, controls described Voltage Regulator Module and carry out step-down processing, so that described Voltage Regulator Module output is exported described rated voltage.
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| CN106532856A (en) * | 2016-12-23 | 2017-03-22 | 惠州Tcl移动通信有限公司 | Mobile terminal charging method and system |
| WO2017128619A1 (en) * | 2016-01-30 | 2017-08-03 | 乐视控股（北京）有限公司 | Device, apparatus, and method supporting multi-battery quick-charging |
| WO2018028259A1 (en) * | 2016-08-09 | 2018-02-15 | 中兴通讯股份有限公司 | Terminal charging device and method |
| CN109377591A (en) * | 2018-09-14 | 2019-02-22 | 联合汽车电子有限公司 | Keyless gate inhibition system |
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Effective date of registration: 20171027 Address after: Metro Songshan Lake high tech Industrial Development Zone, Guangdong Province, Dongguan City Road 523808 No. 2 South Factory (1) project B2 -5 production workshop Patentee after: HUAWEI terminal (Dongguan) Co., Ltd. Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee before: Huawei Device Co., Ltd. |
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Address after: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee after: Huawei Device Co., Ltd. Address before: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: HUAWEI terminal (Dongguan) Co., Ltd. |