CN105743185A - Mobile terminal and charging method - Google Patents

Mobile terminal and charging method Download PDF

Info

Publication number
CN105743185A
CN105743185A CN 201610279148 CN201610279148A CN105743185A CN 105743185 A CN105743185 A CN 105743185A CN 201610279148 CN201610279148 CN 201610279148 CN 201610279148 A CN201610279148 A CN 201610279148A CN 105743185 A CN105743185 A CN 105743185A
Authority
CN
Grant status
Application
Patent type
Prior art keywords
charging
battery
chip
voltage
processor
Prior art date
Application number
CN 201610279148
Other languages
Chinese (zh)
Inventor
李甫
胡二勐
Original Assignee
青岛海信移动通信技术股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0052Charge circuits only
    • H02J7/0055Charge circuits only adapted for charging from various sources, e.g. AC, DC, multivoltage

Abstract

The invention provides a mobile terminal and a charging method, and relates to the technical field of communication. A battery is charged jointly by an LDO (low dropout regulator) circuit and a charging chip, so that the purpose of rapid charging is fulfilled. The mobile terminal comprises a processor, the charging chip, the LDO circuit and a battery, wherein the charging chip is used for charging the battery until the battery is fully charged; the processor is used for controlling the LDO circuit to charge the battery when the battery voltage is within a first voltage interval in the charging process of the battery by the charging chip; and the LDO circuit is used for charging the battery under the control of the processor.

Description

_种移动终端和充电方法 _ Species mobile terminal and method for charging

技术领域 FIELD

[0001]本发明涉及通信技术领域,尤其涉及一种移动终端和充电方法。 [0001] The present invention relates to communications technologies, and in particular relates to a mobile terminal and a charging method.

背景技术 Background technique

[0002]随着现代电子科技的进步,手机、平板电脑、数码相机等便携式电子产品取得了快速的发展,这些便携式电子设备对设备内电池的要求也越来越高,这些要求主要体现在电池容量越来越大,而终端客户要求的充电时间却越来越短。 [0002] With the advancement of modern electronic technology, phones, tablets, digital cameras and other portable electronic products has achieved rapid development, these portable electronic devices within the requirements of the device's battery is also getting higher and higher, these requirements mainly in battery increasing the capacity, and the end customer charging time is shorter.

[0003]为满足终端客户的要求,目前,业界通常采用下述的双充电芯片进行电池充电:在终端内设置并联的两个充电芯片,一个作为主充电芯片,另一个作为辅充电芯片,且两个充电芯片都通过2线式串行总线(Inter-1ntegrated Circuit,I2C)接口与处理器连接,由控制器对其进行控制。 [0003] In order to meet the requirements of the end customer, at present, the industry is employed a double charge the battery charging chip: two parallel charging chip disposed within a terminal, as a primary charging chip, the other as a secondary charging chip, and charging chip 2 through two-line serial bus (Inter-1ntegrated Circuit, I2C) interface connected to the processor controlled by the controller thereof. 在电池充电过程中,主充电芯片一直为电池充电,处理器需要根据电池的充电阶段控制辅充电芯片的打开和关闭,以使辅充电芯片与主充电芯片一起为电池充电,加快电池充电时间,并且在辅充电芯片为电池充电时,需要控制器通过I2C接口不断调整辅充电芯片的充电电流,以免电池充电电流多大给电池造成不必要的伤害。 The battery is charging, the master has to charge the battery charging chip, the processor needs to open and close the charging stage of the secondary battery charging control chip, the chip so that the auxiliary charge and the main charge the battery charging chip together, the time to charge the batteries, and charging the secondary battery charging chip, the controller needs to constantly adjust the I2C interface chip charging auxiliary charging current, the battery charging current in order to avoid unnecessarily much harm to the battery.

发明内容 SUMMARY

[0004]本发明的主要目的,在于提供一种移动终端和充电方法,通过LDO电路和充电芯片共同对电池充电,以实现快速充电的目的。 [0004] The main object of the present invention is to provide a mobile terminal and a method for charging, the common charging the battery charging chip, and by the LDO circuit to achieve the purpose of rapid charging.

[0005]为达到上述目的,本发明的实施例采用如下技术方案: [0005] To achieve the above object, embodiments of the present invention adopts the following technical solutions:

[0006]第一方面,本发明实施例提供一种移动终端,所述移动终端可以包括:处理器、充电芯片、低压差线性稳压器LDO电路以及电池;充电芯片的输出端与电池的正极连接,充电芯片的通信接口与处理器连接;LDO电路的输出端与电池的正极连接,LDO电路的控制端与处理器连接; [0006] In a first aspect, embodiments of the present invention provides a mobile terminal, the mobile terminal may comprise: a processor, charging chip, low dropout LDO linear regulator circuit and a battery; the positive output terminal of the battery charging chip connection, the charging communication interface with the processor chip is connected; LDO circuit connected to the positive output terminal of the battery, a control terminal of the LDO circuit coupled to the processor;

[0007] 充电芯片,用于对电池进行充电,直至电池充电完成; [0007] charging chip, for charging the battery until the battery is fully charged;

[0008] 处理器,用于在充电芯片对电池充电的过程中,若电池电压处于第一电压区间,则控制LDO电路对电池进行充电; [0008] The processor chip for the charging process of charging the battery, if the battery voltage in a first voltage range, then the LDO circuit to charge the battery;

[0009] LDO电路,用于在处理器的控制下对电池进行充电。 [0009] LDO circuit for charging the battery under control of the processor.

[0010]第二方面,本发明实施例还提供一种充电方法,应用于如第一方面所述的移动终端,所述方法可以包括: [0010] In a second aspect, embodiments of the present invention further provides a charging method, as applied to a first aspect of the mobile terminal, the method may include:

[0011] 充电芯片对电池进行充电,直至电池充电完成; [0011] charging the battery charging chip, until the battery is fully charged;

[0012] 在充电芯片对电池充电的过程中,若电池电压处于第一电压区间,则控制器控制LDO电路对电池进行充电。 [0012] The process of charging the battery, if the battery voltage in a first voltage range, the controller controls LDO circuit to charge the battery charging chip.

[0013]由上可知,本发明实施例提供一种移动终端和充电方法,该移动终端可以包括:处理器、充电芯片、低压差线性稳压器LDO电路以及电池,充电芯片,用于对电池进行充电,直至电池充电完成,处理器,用于在充电芯片对电池充电的过程中,若电池电压处于第一电压区间,则控制LDO电路对电池进行充电。 [0013] From the above, embodiments provide a mobile terminal and a charging method of the present invention, the mobile terminal may comprise: a processor, charging chip, low dropout LDO linear regulator circuit and a battery charging chip, a battery charging until the battery is fully charged, the processor, the process for charging a battery charging chip, when the battery voltage is a first voltage range, then the LDO circuit to charge the battery.

[0014]如此,在移动终端内增设LDO电路,使其在电池充电的某个阶段和充电芯片一起对电池进行充电,由于,LDO电路和充电芯片二者共同输出的电流大于单一充电芯片的输出电流,因此,LDO电路和充电芯片的结合可以很好的实现对电池的快速充电。 [0014] Thus, in the mobile terminal additional LDO circuit, so as to charge the battery with the charging of the battery charging chip and a stage, because both the current and the charging LDO circuit chip common output is greater than the output of the single chip charge current, therefore, in conjunction with the LDO circuit and the charging of the chip can be very good fast charging of the battery.

附图说明 BRIEF DESCRIPTION

[0015]为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。 [0015] In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, briefly introduced hereinafter, embodiments are described below in the accompanying drawings or described in the prior art needed to be used in describing the embodiments the drawings are only some embodiments of the present invention, those of ordinary skill in the art is concerned, without creative efforts, can derive from these drawings other drawings.

[0016]图1为现有LDO电路的原理框图; [0016] FIG. 1 is a block diagram of a conventional LDO circuit;

[0017]图2为现有LDO电流的输出特性曲线图; [0017] FIG 2 is a conventional LDO output current characteristic graph;

[0018]图3为本发明实施例提供的移动终端10的结构示意图; [0018] FIG. 3 provides a schematic structural diagram of a mobile terminal 10 of the embodiment of the present invention;

[0019]图4为本发明实施例提供的一种充电方法的流程示意图。 [0019] FIG 4 flow diagram of a charging method according to an embodiment of the present invention.

具体实施方式 detailed description

[0020]下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。 [0020] below in conjunction with the present invention in the accompanying drawings, technical solutions of embodiments of the present invention are clearly and completely described, obviously, the described embodiments are merely part of embodiments of the present invention, but not all embodiments example. 基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, all other embodiments of ordinary skill in the art without any creative effort shall fall within the scope of the present invention.

[0021]在本发明的描述中,需要理解的是,术语“第一”、“第二”、“另一”等指示的系统或元件为基于实施例描述的具有一定功能的系统或元件,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的系统或元件必须有此命名,因此不能理解为对本发明的限制。 [0021] In the description of the present invention, it is to be understood that the terms "first", "second", system or element "other" and the like based on the indicated system or element having a certain function of the embodiment described, is merely for convenience of description and the present invention is to simplify the description, but does not indicate or imply that a system or element referred to must have this name, it can not be construed as limiting the present invention.

[0022]详细描述本方案之前,为了便于理解本发明所述的技术方案,对本发明涉及的技术名词进行详细解释,需要理解的是,下述技术名词仅是本发明技术人员为了描述方便进行的描述,并不代表或暗示所指的系统或元件必须有此命名,因此不能理解为对本发明的限制: [0022] Before describing in detail the present embodiment, in order to facilitate understanding of the technical solutions of the present invention, the technical terms of the present invention will be explained in detail, it is understood that the following technical terms are merely for purposes of describing the art of the present invention facilitate the description do not represent or imply that a system or element referred to must have this name, it can not be construed as limiting of the present invention:

[0023] LDO(Low Dropout Regulator,低压差线性稳压器)电路,其基本工作原理如图1所示,LDO电路主要有:串联调整管VT、取样电阻Rl、电阻R2、比较放大器A组成,取样电压加在比较放大器A的同相输入端,与加在反相输入端的基准电压(Uref)相比较,两者的差值经过比较放大器A的放大后,控制串联调整管VT的压降,从而稳定输出电压。 [0023] LDO (Low Dropout Regulator, LDO) circuit, the basic working principle shown in Figure 1, the LDO circuits are: the VT series regulator, sampling resistor Rl, a resistor R2, an amplifier A comparative composition, sampling a voltage applied to the comparator inverting input terminal of amplifier a, is compared with the reference voltage applied to the inverting input terminal (Uref), after amplification of the difference between the two comparator amplifier a controls the voltage drop VT of the series regulator, thereby stable output voltage. 可选的,在本发明实施例中,LDO电路可以为:具有输出限流和反向保护特性的电路。 Optionally, in embodiments of the present invention, the LDO circuit may include: an output circuit having a current limiting and reverse protection features.

[0024]例如,图2为LDO电路的输出特性曲线图,在LDO电路为负载供电的过程中,若负载要求LDO电路的输出电流未超过额定电流,则LDO电路处于恒压状态(如图2中A点到B点间的曲线),若负载要求LDO电路的输出流程超过额定电流,则LDO电路处于限流工作状态(如图2中B点到C点间的曲线),在限流工作状态中,负载电压逐渐升高,LDO电路的输出电压会逐步增加,LDO电路的输出电流也会变大(但不会超过额定电流),而负载要求LDO电路的输出电流却逐渐降低,此时,若负载要求LDO电路的输出能力未超过额定电流,则LDO电路会变为不限流状态,处于恒压状态,LDO电路的输出电流会变小。 [0024] For example, FIG. 2 is a graph showing the output characteristic of the circuit LDO, the LDO circuit is in the process of supplying the load, if the load requirements of the LDO circuit output current does not exceed the rated current, the constant pressure in the LDO circuit (FIG. 2 the curve between point a to point B), if the load requirements of the LDO circuit output flow exceeds the rated current, the LDO current limit circuit is in the operating state (FIG. 2 B to the curve between the point C), the work flow restrictor state, the load voltage is gradually increased, the output voltage of the LDO circuit will gradually increase the output current of the LDO circuit also becomes large (but does not exceed the rated current), the LDO circuit and the load required output current is gradually decreased, then , if the load requirements of the LDO circuit output capacity does not exceed the rated current, the circuit becomes LDO Any flow state, in constant voltage, the output current of the LDO circuit becomes small.

[0025] 锂电池充电,其充电过程通常可以分为四个阶段:涓流充电(低压预充)、恒流充电、恒压充电以及充电终止,例如,可以先检测待充电电池的电压,如果电压较低(如低于3V),要先进行预充电,充电电流为设定电流的1/10,电压升到3V后,进入标准充电过程,标准充电过程为:以设定电流进行恒流充电,电池电压升到4.20V时,改为恒压充电,保持充电电压为4.20V,此时,充电电流逐渐下降,当电流下降至设定充电电流的1/10时,充电结束。 [0025] The lithium battery, the charging process can generally be divided into four stages: trickle charge (low voltage pre-charge), constant current charging, constant voltage charging and charge termination, for example, to detect voltage of the battery to be charged, if low voltage (e.g., less than 3V), first pre-charging, the charging current is set to 1/10 of the current, the voltage rises 3V, into the standard charging process, the charging process is standard: to set the current constant charging, the battery voltage is raised to 4.20 V, to constant voltage charging, the charging voltage of 4.20 V remains, at this time, the charge current gradually decreases when the current drops to 1/10 of the charge current, the charging is completed.

[0026]由锂电池充电的过程可知,在恒流充电阶段,可以加大充电电流,以使电池电压快速升至4.20V时,改为恒压充电,直至充电结束,这样才可以降低充电时间,实现快速充电。 [0026] apparent from the process of charging the lithium battery, constant-current charging phase, the charging current can be increased, so that the battery voltage is 4.20 V when the rapid rise, to the constant voltage charging until the end of charging, so that it can reduce the charging time for fast charging. 基于此,本发明在恒流充电阶段,采用LDO电路和充电芯片共同对电池进行充电,以提高充电速度。 Based on this, the present invention is in the constant current charging phase, charging the LDO circuit chip and common to charge a battery, to increase the charging speed.

[0027]图3为本发明实施例提供的移动终端10的结构图,所述移动终端10可以为手机、平板电脑等设备,如图3所示,所述移动终端10可以包括:处理器101、充电芯片102、LD0电路103、以及电池104;所述充电芯片102的输出端与所述电池104的正极连接,所述充电芯片1 2的通信接口与所述处理器1I连接;所述LDO电路1 3的输出端与所述电池104的正极连接,所述LDO电路13的控制端与所述处理器1I连接。 Processor 101: The terminal 10 may be a mobile phone, a tablet computer, etc., shown in Figure 3, the mobile terminal 10 may include a configuration diagram of a mobile terminal 10 provided in the embodiment of [0027] the present invention. FIG. 3, the mobile charging chip 102, the LD0 circuit 103, and a battery 104; connected to the positive output terminal of the charging chip 102 of the battery 104, the charging chip communication interface with the processor of 1I 1 2; said LDO connected to the positive output of the circuit 13 to the battery 104, the control terminal of the LDO circuit 13 and the processor is connected to 1I.

[0028] 其中,处理器101可以为:一个中央处理器(central processing unit,简称为CPU),也可以是特定集成电路(Applicat1n Specific Integrated Circuit,ASIC),或者是被配置成实施本发明实施例的一个或多个集成电路,例如:一个或多个微处理器(digital singnal processor,DSP),或,一个或者多个现场可编程门阵列(FieIdProgrammable Gate Array,FPGA)。 [0028] wherein, the processor 101 may be: a central processing unit (central processing unit, referred to as the CPU), or may be specific integrated circuit (Applicat1n Specific Integrated Circuit, ASIC), or configured to implement the embodiments of the present invention, one or more integrated circuits, such as: one or more microprocessors (digital singnal processor, DSP), or one or more field programmable gate arrays (FieIdProgrammable gate array, FPGA).

[0029] 充电芯片102,可以为开关型充电芯片,主要功能就是对电池进行充电及管理。 [0029] charging chip 102, the main function is to charge the battery and switching the charging management chip.

[0030] LDO电路103,可以为如图1所述的LDO电路。 [0030] LDO circuit 103, may be a LDO circuit of FIG.

[0031] 电池104,可以为锂电池。 [0031] The battery 104, may be a lithium battery.

[0032]具体的,在本发明实施例中,充电芯片102,可以用于对电池进行充电,直至电池充电完成; [0032] Specifically, in the embodiment of the present invention, the charging chip 102, can be used to charge the battery until the battery is fully charged;

[0033] 处理器101,可以用于在充电芯片对电池充电的过程中,若电池电压处于第一电压区间,则控制LDO电路对电池进行充电; [0033] processor 101, the chip can be used during charging of charging the battery, if the battery voltage at a first voltage range, then the LDO circuit to charge the battery;

[0034] LDO电路,用于在处理器的控制下对电池进行充电。 [0034] LDO circuit for charging the battery under control of the processor.

[0035] 如此,可以在移动终端内增设LDO电路,使LDO电路和充电芯片一起对电池进行充电,实现对电池的快速充电。 [0035] As may be additional circuitry in the mobile terminal LDO, the LDO circuit chip with the charge and the battery is charged, fast charging of the battery.

[0036]可选的,第一电压区间可以为:从第一预设电压值到第二预设电压值的电压区间,第二预设电压值大于第一预设电压值,且第一预设电压值和第二预设电压值的具体取值可以根据需要进行设置,本发明实施例对此不进行限定。 [0036] Optionally, the first voltage interval may be: the first preset voltage value to the second voltage interval predetermined voltage value, the second predetermined voltage is greater than a first predetermined voltage value, and the first pre- specific value set voltage value and a second predetermined voltage value may be set according to needs, embodiments of the present invention which is not limited.

[0037] 处理器101,具体可以用于当处理器101检测到电池104开始充电时,向充电芯片102发送充电指令,充电指令用于通知充电芯片102开始对电池104进行充电; [0037] processor 101, specifically processor 101 may be used to detect when the battery 104 starts charging, a charging instruction sent to the charging chip 102, a charging command for notifying chip 102 starts charging the battery 104 is charged;

[0038] 充电芯片102,具体可以用于根据处理器101发送的充电指令以及电池104的电压,开始对电池104进行充电; [0038] charging chip 102, may be used in accordance with the specific charging voltage of the battery 104 and the command processor 101 transmits a start charging the battery 104;

[0039] 若电池104电压达到第一预设电压值,则处理器101开启LDO电路103,由LDO电路103和充电芯片102共同为电池104充电; [0039] When the battery 104 voltage reaches a first predetermined voltage value, the processor 101 of the LDO circuit 103 is turned on, the common circuit 103 is charged by the LDO 102 and the battery charging chip 104;

[0040] 若电池104电压达到第二预设电压值,则处理器101关闭LDO电路103,仅由充电芯片102对电池充电,直至电池104充电完成。 [0040] When the voltage of the battery 104 voltage reaches a second predetermined value, the processor 101 off the LDO circuit 103, only the chip 102 charged by the charging the battery, the battery 104 until the completion of charging.

[0041]可选的,充电芯片102可以将检测到的电池104的电压存储在充电芯片102中,由处理器101读取充电芯片102中存储的电池104的电压,根据读取到的电压值控制LDO电路103的开启或关闭。 [0041] Alternatively, the chip 102 may detect the charging voltage to the charging the storage battery 104 in chip 102, the voltage read by the processor 101 of the battery charging chip 102 in the storage 104, according to the read voltage value LDO open or close the control circuit 103.

[0042]需要说明的是,在本发明实施例中,充电芯片102具体可以用于采用下述方案一或方案二对电池104进行充电: [0042] Incidentally, in the embodiment of the invention, the charging chip 102 may be specifically configured using the following scheme or a second scheme to charge the battery 104:

[0043]方案一: [0043] Scheme I:

[0044]若电池电压小于第一预设电压值,则采用涓流充电方式对电池104进行充电;若电池电压达到第一预设电压值,则采用恒流充电方式对电池104进行充电,且在充电芯片102的恒流充电过程中,充电芯片102的输出电流和LDO电路103的输出电流之和不超过电池104所承受的最大电流值;若电池电压达到第二预设电压值,则采用恒压充电方式对电池104进行充电,直至电池充电完成。 [0044] If the battery voltage is less than a first predetermined voltage value, the trickle charge mode to charge the battery 104; if the battery voltage reaches a first predetermined voltage value, the constant current charging mode of the battery 104 is charged, and in the constant current charging during the charging of the chip 102, the output current of the charging current and the output chip 102 and the LDO circuit 103 does not exceed the maximum current value of the battery 104 is subjected; if the battery voltage reaches a second predetermined voltage value, is used constant voltage charging to charge the battery 104 until the battery is fully charged.

[0045]方案二: [0045] Scheme II:

[0046]若电池电压小于第一预设电压值,则采用涓流充电方式对电池104进行充电;若电池电压达到第一预设电压值,则采用可变电流对电池104进行充电,且在充电芯片102采用可变电流充电的过程中,充电芯片102的输出电流和LDO电路103的输出电流之和可以为恒定电流,恒定电流不超过电池104所承受的最大电流值;若电池电压达到第二预设电压值,则采用恒压充电方式对电池104进行充电,直至电池充电完成。 [0046] If the battery voltage is less than a first predetermined voltage value, the trickle charge mode to charge the battery 104; if the battery voltage reaches a first predetermined voltage value, the variable current is used to charge the battery 104 and the chip 102 using the charging process variable current charging, the charging current chip output 102 of circuit 103 and the LDO output current and the maximum current value may be a constant current, constant current does not exceed the battery 104 is subjected; if the battery voltage reaches the first two predetermined voltage value, the constant voltage charging mode of the battery 104 is charged until the battery is fully charged.

[0047] 进一步可选的,如图3所示,所述移动终端10还可以包括:充电接口105;充电接口105的一端可以用于与充电器连接,所述充电接口105的另一端可以用于与所述充电芯片1 2的输入端、LDO电路1 3的输入端连接; [0047] Further, optionally, as shown in FIG. 3, the mobile terminal 10 may further comprise: a charging interface 105; end of the charging interface 105 may be used in connection with a charger, charging the other end of the interface 105 can be used chip charge at the input terminal 12, the input terminal of the LDO circuit 13 is connected;

[0048] 所述处理器101,具体可以用于当处理器101检测到充电器插入充电接口105时,确定电池104开始充电,向充电芯片102发送充电指令。 [0048] The processor 101 may specifically be used when the processor 101 detects the charger 105 is inserted into charging port, the battery 104 starts charging determination, sending an instruction to the charging charger IC 102.

[0049] 进一步可选的,所述处理器101可以通过2线式串行总线(Inter-1ntegratedCircuit,I2C)与所述充电芯片102的通信接口连接;所述处理器101可以通过通用输入/输出(General Purpose Input Output,GP10)总线与所述LDO电路103的控制端连接。 [0049] Further, optionally, the processor 101 can be two-line serial bus (Inter-1ntegratedCircuit, I2C) communication interface connecting with the charging of the chip 102; the processor 101 may be a general purpose input / output (General Purpose Input Output, GP10) to the bus control terminal of the LDO circuit 103 is connected.

[0050] 进一步可选的,为了避免LDO电路103和充电芯片102同时对电池104充电时,电流过大对电池104造成的危害,在本发明实施例中,所述LDO电路1 3的输出端的输出电流不可超过所述LDO电路的额定电流;此外,由于随着LDO电路103的额定输出电压与电池104电压之间的压差逐步降低,LDO电路103的输出电流逐步降低至零,此时,为了避免电池104内的电流逆流进LDO电路103中,所述LDO电路103还可以设置有反向保护模块,所述反向保护模块可以用于避免所述LDO电路的输出端吸收从所述电池流出的电流。 [0050] Further alternatively, in order to avoid the LDO circuit 103 and the chip 102 while charging the battery 104 when the charging current is too large due to damage to the battery 104, in the embodiment of the present invention, the output of the LDO circuit 13 is output current not exceed the rated current of the LDO circuit; in addition, due to the gradual decrease as the pressure differential between the rated output voltage of the LDO circuit 103 to the battery 104 voltage, the output current of the LDO circuit 103 is gradually reduced to zero, and, in order to prevent reverse current flow in the battery 104 into the LDO circuit 103, the LDO circuit 103 may also be provided with a reverse protection module, the protection module can be used to avoid the reverse of the output terminal of the LDO circuit absorbed from the battery current flowing.

[0051 ] 进一步可选的,如图3所示,所述移动终端10还可以包括:设置在所述充电芯片102的输出端和所述电池104的正极之间的电阻; [0051] Further, optionally, as shown in FIG. 3, the mobile terminal 10 may further comprises: a resistor provided between said positive electrode charging chip 102 and an output terminal of the battery 104;

[0052] 所述充电芯片102还可以用于:检测所述电阻两边的电压,若所述电阻两边的电压大于第三预设阈值,则关闭所述充电芯片102的充电通道。 [0052] The chip 102 may also charge for: detecting a voltage of the resistor on both sides, if the sides of the resistor voltage greater than a third predetermined threshold value, the charging chip charging passage 102 is closed.

[0053]其中,第三预设阈值可以根据需要进行设置,本发明实施例对此不进行限定,当电阻两边的电压大于第三预设阈值,则表示对电池104的充电电流过大,很可能充电芯片102内部出现问题,为了避免对电池104的伤害,则关闭充电芯片102的充电通道,停止充电。 [0053] wherein the third predetermined threshold value may be set according to needs, embodiments of the present invention is not limited in this embodiment, when the voltage of the resistor sides greater than a third predetermined threshold value, it indicates that the charging current to the battery 104 is too large, it problems may occur inside the charging chip 102, in order to avoid damage to the battery 104, the charging chip off the charging passage 102, the charging is stopped.

[0054] 其中,所述电阻可以为10毫欧精密电阻。 [0054] wherein, the resistor 10 may be a precision resistor milliohms.

[0055]需要说明的是,为了提高移动终端10中各器件的稳定性,图3中所述的各器件均可以焊接在印刷电路(PCB)板上。 [0055] Incidentally, the mobile terminal 10 in order to improve the stability of each device, each device described in FIG. 3 can be soldered printed circuit (PCB) plate.

[0056]下面基于图3对移动终端中各单元的执行功能进行详细说明: [0056] described in detail below based on FIG. 3 perform the functions of each unit in the mobile terminal:

[0057]在电池104充电开始前,LDO电路103默认处于关闭状态; [0057] Before starting the charging, LDO circuit 103 is off by default in the battery 104;

[0058]当处理器101检测到有充电器插入充电接口 105时,向充电芯片102发送充电指令; [0058] When the processor 101 detects the charger 105 is inserted into charging port, a charging instruction sent to the charging chip 102;

[0059] 充电芯片102读取电池104电压,如果电池104电压在第一预设阈值Vthl (本例中可设置为3V)以下时,不开启LDO电路103,仅使用充电芯片102来给电池104充电,本例中为了保护电池104,当电池104电压低于Vthl时,充电芯片102采用涓流充电模式给电池104充电,充电电流限制在200晕安以下; [0059] chip 102 reads the battery 104 charging voltage, if the battery 104 in a first predetermined threshold voltage VthL (of the present embodiment may be set to 3V) or less, the LDO circuit 103 is not turned on, only the chip 102 to charge the battery 104 charging, in the present embodiment in order to protect the battery 104, when the battery voltage is lower than 104 VthL, charging chip 102 trickle charge mode, the battery 104 is charged, the charging current is limited to 200 or less security halo;

[0060] 当电池104电压升高到Vthl以上时,处理器101通过使能LDO电路103的控制端开启LDO电路103,由LDO电路103和充电芯片102—起给电池104充电,此时,由于此时电池104电压较低,LDO电路处于正常工作状态,LDO电路的输出电压减去电池电压压差较大,除以通路阻抗后,LDO电路的输出电流会大超过LDO电路的输出能力,所以LDO电路处于限流工作状态(此时LDO电路103的输出电流可以在300〜500毫安左右),加上充电芯片102的充电电路,此时给电池104的充电电流在1.8安(A)〜2A之间; [0060] When the battery 104 voltage rises above Vthl, processor 101 LDO circuit 103 is turned on by the enable control terminal of the LDO circuit 103, the battery 104 is charged by the charging circuit 103 and the LDO chip from 102- In this case, since the at this low voltage battery 104, the LDO circuit in normal working condition, the output voltage of the LDO circuit battery voltage minus the larger pressure, divided by the impedance channel, the output current of the LDO circuit will be larger than the output capacity of the LDO circuit, so LDO current limit circuit is in the operating state (when the output current of the LDO circuit 103 may be about 300~500 mA), plus the charge of the charging circuit chip 102, when the battery 104 charge current 1.8 amps (a) ~ between. 2A;

[0061 ] 当电池104电压逐步升高时,LDO电路103的输出电流也逐步增加,输出电流也会逐步增大,直至到LDO电路103的最大输出电流(即额定输出电流,本例中可设置为500毫安),此时,根据下述公式可知电池104的电压Vl为: [0061] When the battery 104 voltage gradually increased, the output current of the LDO circuit 103 is gradually increased, the output current will gradually increase until the LDO circuit 103 to the maximum output current (i.e., the rated output current, the present embodiment may be provided to 500 mA), this time according to the following formula indicates the battery 104 is voltage Vl:

[0062] VI—VlDO—out-( ILDO—rate+Ichgic ) X (Rboardl+Rl )_lLD0—rate X Rboard2 [0062] VI-VlDO-out- (ILDO-rate + Ichgic) X (Rboardl + Rl) _lLD0-rate X Rboard2

[0063] 其中,VLDQ—mjt为LDO电路103的额定输出电压(本例中可设置为4伏(V)) ,iLDQ—rate为LDO电路13的额定输出电流,Rbciardl为图1中节点I和节点2之间的PCB板走线等效阻抗,Rb—2为从LDO电路103的输出节点到图1中节点I处的PCB板引线等效阻抗,Rl为电阻的电阻值; [0063] wherein, VLDQ-mjt rated output voltage of the LDO circuit 103 (in this case may be set to 4 volts (V)), iLDQ-rate rated output current of the LDO circuit 13, Rbciardl FIG. 1 nodes I and the PCB trace between node 2 equivalent resistance, Rb-2 from the output node of the LDO circuit 103 to the PCB lead node I at equivalent impedance in FIG. 1, Rl is the resistance of the resistor;

[0064] 随着电池电压的上升,当电池104电压超过Vl后,由于LDO电路103的额定输出电压与电池104电压之间的压差逐步降低,LDO的额定输出电压减去电池电压,再除以通路阻抗后,得到的电流值小于LDO的额定输出能力后,LDO会变为不限流状态,此时LDO的输出电压变为恒定值,这样随着电池电压上升,LDO的输出电压与电池电压的差值越来越小,所以LDO的输出电流也会逐步降低,当LDO电路103的输出电流基本上接近O毫安时,此时,根据下述公式可知电池104电压到达Vth2: [0064] With the increase in the battery voltage when the battery voltage exceeds 104 Vl, due to the gradual reduction of the pressure difference between the voltage of the LDO 104 in the circuit 103 the nominal output voltage of the battery, the rated output voltage of the LDO subtracting the battery voltage, then in addition to after the passage to the impedance, the current value is less than the rated output capacity to obtain the LDO, LDO becomes limited flow state, when the output voltage of the LDO becomes a constant value, such as the battery voltage increases, the LDO output voltage and the battery the smaller the difference voltage, the LDO output current will gradually decrease, when the output current of the LDO circuit 103 is substantially near O mA, this time according to the following formula indicates the battery 104 voltage reaches Vth2:

[0065] Vth2 — VLDO out-1chgic X (Rboardl+Rl) [0065] Vth2 - VLDO out-1chgic X (Rboardl + Rl)

[0066]此时,可以关闭LDO电路,仅使用充电芯片给电池充电,直至充电完成。 [0066] At this time, you can turn off the LDO circuit, using only the battery charging chip until the charging is completed.

[0067]由上可知,本发明实施例提供一种移动终端,包括:处理器、充电芯片、低压差线性稳压器LDO电路、以及电池,当处理器检测到电池开始充电时,向充电芯片发送充电指令,由充电芯片对电池进行充电,若电池的电压达到第一预设阈值时,控制LDO电路开启,由LDO电路和充电芯片一起会电池充电,当电池的电压达到第二预设阈值时,关闭LDO电路,仅有充电芯片对电池进行充电,直至充电完成。 [0067] From the above, embodiments provide a mobile terminal, the present invention comprises: a processor, charging chip, low dropout LDO linear regulator circuit, and a battery, when the processor detects that the battery charging starts, the charging chip sending charge command, the battery is charged by the charging chip, if the voltage of the battery reaches a first predetermined threshold value, the control circuit turns LDO, the LDO will charge the battery with a charging circuit and a chip, when the battery voltage reaches a second predetermined threshold value when closing the LDO circuit, the battery charging chip only until the charging is completed.

[0068]如此,在移动终端内增设LDO电路,使其在电池充电的某个阶段和充电芯片一起对电池进行充电,由于,LDO电路和充电芯片二者共同输出的电流大于单一充电芯片的输出电流,因此,LDO电路和充电芯片的结合可以很好的实现对电池的快速充电。 [0068] Thus, in the mobile terminal additional LDO circuit, so as to charge the battery with the charging of the battery charging chip and a stage, because both the current and the charging LDO circuit chip common output is greater than the output of the single chip charge current, therefore, in conjunction with the LDO circuit and the charging of the chip can be very good fast charging of the battery.

[0069]其次,由于LDO电路价格低廉,其价格低于现有技术中增加的辅充电芯片的价格,所以,与现有技术相比,本案中采用LDO电路和充电芯片来实现快速充电,可以大大降低移动终端的生产成本。 [0069] Next, the LDO circuit because of its low price, the price is lower than the price of the prior art to increase the secondary charging chip, so that compared to the prior art, to implement a fast charge case and charging the LDO circuit chip, greatly reduce the production cost of the mobile terminal. 最后,由于LDO电路可以根据自身的电路特性,很好的控制其输出电流和电压,所以,在LDO电路对电池充电的过程中,处理器不需要去调整其输出电流,仅需要控制其开启或关闭即可,与现有方案中处理器需要不断去调整辅充电芯片的输出电流相比,可以大大降低处理器的控制复杂度。 Finally, since the LDO circuit itself according to circuit characteristics, good control of the output current and voltage, therefore, in the process of the LDO circuit for charging the battery, the processor does not need to adjust its output current is only necessary to control the opening or Close to, the existing program to adjust the secondary processor needs to continue charging current compared to the output of the chip, can greatly reduce the complexity of the control processor.

[0070]为了便于描述,以下以步骤的形式示出并描述了上述移动终端的充电过程,虽然在图中示出了逻辑顺序,但是在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤。 [0070] For ease of description, the following steps as shown and described with the charging process of the mobile terminal, although the logical order is shown in the drawing, but in some cases, may be performed in a different order than shown here the steps shown or described.

[0071]图4为本发明实施例提供的充电方法的流程示意图,该充电方法应用于图3所示的移动终端,如图4所示,所述方法可以包括: [0071] FIG. 4 schematic flowchart of a charging method according to an embodiment of the present invention, the charging method is applied to a mobile terminal shown in FIG. 3, FIG. 4, the method may include:

[0072] SlOl:充电芯片对电池进行充电,直至电池充电完成。 [0072] SlOl: charging the battery charging chip, until the battery is fully charged.

[0073] S102:在充电芯片对电池充电的过程中,若电池电压处于第一电压区间,则控制器控制LDO电路对电池进行充电。 [0073] S102: In the charging process of the battery charging chip, when the battery voltage is a first voltage range, the controller controls LDO circuit to charge the battery.

[0074]如此,可以使LDO电路和充电芯片一起对电池进行充电,实现对电池的快速充电。 [0074] Thus, the LDO circuit and can be charged with the battery charging chip, fast charging of the battery.

[0075]其中,所述第一电压区间可以为:从第一预设电压值到第二预设电压值的电压区间,所述第二预设电压值大于所述第一预设电压值。 [0075] wherein the first voltage interval may be: a value from a first predetermined voltage to the voltage range of the second predetermined voltage, said second predetermined voltage level greater than the first predetermined voltage value.

[0076]具体的,在所述充电芯片对所述电池进行充电之前,所述方法还可以包括: [0076] Specifically, prior to the charging of the battery charging chip, the method may further comprise:

[0077] 若处理器检测到电池开始充电,则处理器向充电芯片发送充电指令,充电指令用于通知充电芯片开始对电池进行充电; [0077] If the processor detects that the battery charging starts, the processor transmits instructions to the charging charging chip, charging the chip charging command for notifying the start of charging the battery;

[0078]充电芯片对电池进行充电包括: [0078] charge the battery charging chip comprising:

[0079] 充电芯片根据处理器发送的充电指令以及电池的电压,对电池充电,直至电池充电完成; [0079] The charging chip charging command sent by the processor and the voltage of the battery to charge the battery until the battery is fully charged;

[0080] 控制器控制LDO电路对电池进行充电包括: [0080] The controller controls LDO circuit to charge the battery comprising:

[0081] 若电池电压达到第一预设电压值,则开启LDO电路; [0081] When the battery voltage reaches a first predetermined voltage value, the open circuit LDO;

[0082]若电池电压达到第二预设电压值,则关闭LDO电路。 [0082] When the battery voltage reaches a second predetermined voltage, turning off the LDO circuit.

[0083]具体的,在本发明实施例中,充电芯片可以采用下述方案一或方案二对电池进行充电: [0083] Specifically, in the embodiment of the present invention, the charging scheme may be adopted in a chip or to charge a battery Scheme II:

[0084]方案一: [0084] Scheme I:

[0085]若电池电压小于第一预设电压值,则采用涓流充电方式对电池进行充电;若电池电压达到第一预设电压值,则采用恒流充电方式对电池进行充电,且在充电芯片的恒流充电过程中,充电芯片的输出电流和LDO电路的输出电流之和不超过电池所承受的最大电流值;若电池电压达到第二预设电压值,则采用恒压充电方式对电池进行充电,直至电池充电完成。 [0085] If the battery voltage is less than a first predetermined voltage value, the trickle charge mode to charge a battery; if the battery voltage reaches a first predetermined voltage value, the constant current charging mode to charge a battery, and the charging during constant current charging chip, and the output current and the output current of the LDO circuit chip charge does not exceed the maximum current value of the battery is subjected; if the battery voltage reaches a second predetermined voltage value, the constant voltage charging to the battery charging until the battery is fully charged.

[0086]方案二: [0086] Scheme II:

[0087]若电池电压小于第一预设电压值,则采用涓流充电方式对电池进行充电;若电池电压达到第一预设电压值,则采用可变电流对电池进行充电,且在充电芯片采用可变电流充电的过程中,充电芯片的输出电流和LDO电路的输出电流之和可以为恒定电流,恒定电流不超过电池所承受的最大电流值;若电池电压达到第二预设电压值,则采用恒压充电方式对电池进行充电,直至电池充电完成。 [0087] If the battery voltage is less than a first predetermined voltage value, the trickle charge mode to charge a battery; if the battery voltage reaches a first predetermined voltage value, the variable current is used to charge the battery, and charging the chip using a variable current charging process, the output current and the output current of the charging and LDO circuit chip may be a constant current, constant current does not exceed the maximum current value of the battery is subjected; if the battery voltage reaches a second predetermined voltage value, the constant voltage charging mode to charge the battery until the battery is fully charged.

[0088]进一步的可选的,移动终端还可以包括:充电接口;充电接口的一端与所述充电芯片的输入端连接,所述充电接口的另一端与所述LDO电路的输入端连接; [0088] Further alternatively, the mobile terminal may further comprise: a charging interface; end of the charging with the charging interface chip is connected to the input terminal, the other end of the charging interface is connected to the input of the LDO circuit;

[0089]当处理器检测到充电器插入充电接口时,处理器向所述充电芯片发送充电指令。 [0089] When the processor detects that the charger is inserted into the charging port, the processor sends an instruction to charge the charging chip.

[0090]进一步可选的,所述移动终端还可以包括:设置在所述充电芯片的输出端和所述电池的正极之间的电阻;所述充电方法还可以包括: [0090] Further, optionally, the mobile terminal may further comprise: a resistor provided between the positive output terminal of the chip and charging the battery; the charging method may further comprise:

[0091] 所述充电芯片检测所述电阻两边的电压,若所述电阻两边的电压大于第三预设阈值,则关闭充电芯片的充电通道,停止对电池充电。 [0091] The charging voltage detecting resistor on both sides of the chip, if the voltage of the resistor is greater than a third predetermined threshold sides, turning off a charging path charging chip, stop charging the battery.

[0092]其中,所述第三预设阈值可以根据需要进行设置,本发明实施例对此不进行限定。 [0092] wherein the third predetermined threshold value may be set according to needs, embodiments of the present invention which is not limited.

[0093]由上可知,本发明实施例提供一种充电方法,由充电芯片对所述电池进行充电,直至所述电池充电完成,且在所述充电芯片对所述电池充电的过程中,若所述电池电压处于第一电压区间,则所述控制器控制所述LDO电路对所述电池进行充电。 [0093] From the above, embodiments of the present invention is to provide a charging method, by charging the battery charging chip, until the battery is fully charged, and during the charging of the battery charging chip, when the battery voltage at a first voltage range, the controller controls the LDO circuit to charge the battery. 如此,通过LDO电路和充电芯片一起对电池进行充电,由于,LDO电路和充电芯片二者共同输出的电流大于单一充电芯片的输出电流,因此,LDO电路和充电芯片的结合可以很好的实现对电池的快速充电。 Thus, the battery charging chip, and by LDO circuit with charge, because the charging current and both the LDO circuit chip common output is greater than the output current of the single-chip charge, thus binding the LDO circuit chip and the charging can be achieved very good fast charging of the battery.

[0094]最后应说明的是:以上实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。 [0094] Finally, it should be noted that: the above embodiments are intended to illustrate the present invention, rather than limiting;. Although the present invention has been described in detail embodiments, those of ordinary skill in the art should be understood: may still be made to the technical solutions described in each embodiment of the modified or part of the technical features equivalents; as such modifications or replacements do not cause the essence of corresponding technical solutions to depart from the technical solutions of the embodiments of the present invention and scope.

Claims (15)

  1. 1.一种移动终端,其特征在于,包括:处理器、充电芯片、低压差线性稳压器LDO电路以及电池;所述充电芯片的输出端与所述电池的正极连接,所述充电芯片的通信接口与所述处理器连接;所述LDO电路的输出端与所述电池的正极连接,所述LDO电路的控制端与所述处理器连接; 所述充电芯片,用于对所述电池进行充电,直至所述电池充电完成; 所述处理器,用于在所述充电芯片对所述电池充电的过程中,若所述电池电压处于第一电压区间,则控制所述LDO电路对所述电池进行充电; 所述LDO电路,用于在所述处理器的控制下对所述电池进行充电。 A mobile terminal, comprising: a processor, charging chip, low dropout LDO linear regulator circuit and a battery; charging the chip connected to the positive output terminal of the battery, charging the chip a communication interface coupled to the processor; the LDO circuit connected to the positive output terminal of the battery, the control terminal of the LDO circuit is connected to the processor; the charging chip, for the battery charging until the battery is fully charged; the processor chip for charging during the charging of the battery, if the battery voltage at a first voltage range, the control circuit of the LDO charging a battery; the LDO circuit for charging the battery under control of the processor.
  2. 2.根据权利要求1所述的移动终端,其特征在于,所述第一电压区间为:从第一预设电压值到第二预设电压值的电压区间,所述第二预设电压值大于所述第一预设电压值,所述处理器用于: 当所述处理器检测到所述电池开始充电时,向所述充电芯片发送充电指令,所述充电指令用于通知所述充电芯片开始对所述电池进行充电; 若所述电池电压达到第一预设电压值,则开启所述LDO电路; 若所述电池电压达到第二预设电压值,则关闭所述LDO电路; 所述充电芯片,具体用于根据所述处理器发送的充电指令以及所述电池电压,开始对所述电池充电。 The mobile terminal according to claim 1, wherein said first voltage range is: from a first value to a second predetermined voltage of the voltage interval predetermined voltage value, the second predetermined voltage value greater than the first predetermined voltage value, the processor is configured to: when the processor detects the battery charging starts, the charging to the charging command chip transmits a charging command for charging the chip notify start charging the battery; if the battery voltage reaches a first predetermined voltage value, the LDO circuit is open; if the battery voltage reaches a second predetermined voltage value, the LDO circuit is closed; the charging chips, particularly according to the charging command sent by the processor and the battery voltage to start charging the battery.
  3. 3.根据权利要求2所述的移动终端,其特征在于,所述充电芯片用于: 若所述电池电压小于所述第一预设电压值,则采用涓流充电方式对所述电池进行充电; 若所述电池电压达到所述第一预设电压值,则采用恒流充电方式对所述电池进行充电,且在所述充电芯片的充电过程中,所述充电芯片的输出电流和所述LDO电路的输出电流之和不超过所述电池所承受的最大电流值; 若所述电池电压达到所述第二预设电压值,则采用恒压充电方式对所述电池进行充电,直至所述电池充电完成。 3. The mobile terminal according to claim 2, wherein said charging chip configured to: if the battery voltage is less than the first predetermined voltage value, the trickle charge mode for charging the battery ; if the battery voltage reaches the first predetermined voltage value, the constant current charging mode for charging the battery, and during charging of the charging chip, charging the chip and the output current LDO circuit output current does not exceed the maximum current value of the battery is subjected; if the battery voltage reaches the second predetermined voltage value, the constant voltage charging to charge the battery until the battery charging is completed.
  4. 4.根据权利要求2所述的移动终端,其特征在于,所述充电芯片用于: 若所述电池电压小于所述第一预设电压值,则采用涓流充电方式对所述电池进行充电; 若所述电池电压达到所述第一预设电压值,则采用可变电流对所述电池进行充电,且在所述充电芯片的充电过程中,所述充电芯片的输出电流和所述LDO电路的输出电流之和为恒定电流,所述恒定电流不超过所述电池所承受的最大电流值; 若所述电池电压达到所述第二预设电压值,则采用恒压充电方式对所述电池进行充电,直至所述电池充电完成。 The mobile terminal according to claim 2, wherein said charging chip configured to: if the battery voltage is less than the first predetermined voltage value, the trickle charge mode for charging the battery ; if the battery voltage reaches the first predetermined voltage value, the variable current is used to charge the battery, and during charging of the charging chip, charging the chip and the output current LDO and the output current of constant current, the constant current circuit does not exceed the maximum current value of the battery is subjected; if the battery voltage reaches the second predetermined voltage value, the constant voltage charging mode charging the battery until the battery is fully charged.
  5. 5.根据权利要求3或4所述的移动终端,其特征在于,所述移动终端还包括:充电接口;所述充电接口的一端用于与充电器连接,所述充电接口的另一端用于与所述充电芯片的输入端、以及所述LDO电路的输入端连接; 所述处理器,具体用于当所述处理器检测到充电器插入所述充电接口时,向所述充电芯片发送充电指令。 The mobile terminal of claim 3 or claim 4, wherein said mobile terminal further comprising: a charging interface; end of the charging interface for connecting with a charger, the charge for the other end of the interface and charging the chip input terminal, and an input terminal of the LDO circuit; said processor, particularly when the processor detects a charging port, charging the chip to send a charging charger into the instruction.
  6. 6.根据权利要求1-5任一项所述的移动终端,其特征在于, 所述处理器通过2线式串行总线I2C与所述充电芯片的通信接口连接; 所述处理器通过通用输入/输出总线GP1与所述LDO电路的控制端连接。 The mobile terminal according to claim any one of claims 1-5, characterized in that said interface processor through the two-line serial bus I2C communication with the charging chip; the processor via a general purpose input / GP1 output bus and a control terminal of the LDO circuit.
  7. 7.根据权利要求1所述的移动终端,其特征在于, 所述LDO电路的输出端的输出电流不超过所述LDO电路的额定电流。 The mobile terminal according to claim 1, wherein said circuit output current LDO output terminal does not exceed the rated current of the LDO circuit.
  8. 8.根据权利要求1所述的移动终端,其特征在于, 所述LDO电路设置有反向保护模块,所述反向保护模块用于避免所述LDO电路的输出端吸收从所述电池流出的电流。 8. The mobile terminal according to claim 1, wherein said LDO circuit is provided with a backward protection module, the protection module inverted output terminal of said LDO circuit for avoiding the absorption of the effluent from the battery current.
  9. 9.根据权利要求1所述的移动终端,其特征在于,所述移动终端还包括:设置在所述充电芯片的输出端和所述电池的正极之间的电阻; 所述充电芯片,还用于检测所述电阻两边的电压,若所述电阻两边的电压大于第三预设阈值,则停止对所述电池充电。 9. The mobile terminal according to claim 1, wherein the mobile terminal further comprising: a resistor provided between the positive electrode and the charging output of the chip of the battery; the charging chip, further with said voltage detecting resistor on both sides, if the sides of the resistor voltage greater than a third predetermined threshold value, stopping charging the battery.
  10. 10.—种充电方法,其特征在于,应用于移动终端,所述移动终端包括:处理器、充电芯片、低压差线性稳压器LDO电路以及电池;所述充电芯片的输出端与所述电池的正极连接,所述充电芯片的通信接口与所述处理器连接;所述LDO电路的输出端与所述电池的正极连接,所述LDO电路的控制端与所述处理器连接;所述充电方法包括: 所述充电芯片对所述电池进行充电,直至所述电池充电完成; 在所述充电芯片对所述电池充电的过程中,若所述电池电压处于第一电压区间,则所述控制器控制所述LDO电路对所述电池进行充电。 10.- species charging method, characterized in that, applied to a mobile terminal, the mobile terminal comprising: a processor, charging chip, low dropout LDO linear regulator circuit and a battery; charging the chip output terminal of the battery connected to the positive electrode, the charging chip communication interface coupled to the processor; and a control terminal of the LDO circuit is connected to the positive output terminal of the battery, the LDO circuit is coupled to the processor; the charge the method comprises: a chip charging the battery charging until the battery is fully charged; chip during the charging of the battery charge, if the battery voltage at a first voltage range, the control the LDO control circuit for charging the battery.
  11. 11.根据权利要求10所述的方法,其特征在于,所述第一电压区间为:从第一预设电压值到第二预设电压值的电压区间,所述第二预设电压值大于所述第一预设电压值,在所述充电芯片对所述电池进行充电之前,所述方法还包括: 若所述处理器检测到所述电池开始充电,则所述处理器向所述充电芯片发送充电指令,所述充电指令用于通知所述充电芯片开始对所述电池进行充电; 所述充电芯片对所述电池进行充电包括: 所述充电芯片根据所述处理器发送的充电指令以及所述电池的电压,对所述电池充电,直至所述电池充电完成; 所述控制器控制所述LDO电路对所述电池进行充电包括: 若所述电池电压达到第一预设电压值,则开启所述LDO电路; 若所述电池电压达到第二预设电压值,则关闭所述LDO电路。 11. The method according to claim 10, wherein said first voltage range is: from a first value to a second predetermined voltage of the voltage interval predetermined voltage value, the second predetermined voltage is greater than the first predetermined voltage value, the charging before the battery charging chip, the method further comprising: if the processor detects that the battery charging starts, the charging of the processor chip sends a charge command, the charging command for notifying the charging device to begin charging the battery; the charge of the battery charging chip comprising: charging the charging command sent by the processor chip in accordance with well voltage of the battery, charging the battery until the battery is fully charged; the controller controlling the LDO circuit to charge the battery comprising: if the battery voltage reaches a first predetermined voltage value, the LDO circuit open; if the battery voltage reaches a second predetermined voltage value, the LDO circuit is closed.
  12. 12.根据权利要求11所述的方法,其特征在于,所述充电芯片根据所述处理器发送的充电指令以及所述电池的电压,对所述电池充电,包括: 若所述电池电压小于所述第一预设电压值,则采用涓流充电方式对所述电池进行充电; 若所述电池电压达到所述第一预设电压值,则采用恒流充电方式对所述电池进行充电,且在所述充电芯片的充电过程中,所述充电芯片的输出电流和所述LDO电路的输出电流之和不超过所述电池所承受的最大电流值; 若所述电池电压达到所述第二预设电压值,则采用恒压充电方式对所述电池进行充电,直至所述电池充电完成。 12. The method according to claim 11, wherein said charging voltage according to charging chip, and the command sent by the processor battery, charging the battery, comprising: if the battery voltage is less than the said first predetermined voltage value, the trickle charge mode to charge the battery; if the battery voltage reaches the first predetermined voltage value, the constant current charging mode for charging the battery, and during charging of the charging chip, the charging current output of the LDO circuit chip and an output current does not exceed the maximum current value of the battery is subjected; if the battery voltage reaches the second pre- set voltage value, the constant voltage charging mode to charge the battery until the battery is fully charged.
  13. 13.根据权利要求11所述的方法,其特征在于,所述充电芯片根据所述处理器发送的充电指令以及所述电池的电压,对所述电池充电,包括: 若所述电池电压小于所述第一预设电压值,则采用涓流充电方式对所述电池进行充电; 若所述电池电压达到所述第一预设电压值,则采用可变电流对所述电池进行充电,且在所述充电芯片的充电过程中,所述充电芯片的输出电流和所述LDO电路的输出电流之和为恒定电流,所述恒定电流不超过所述电池所承受的最大电流值; 若所述电池电压达到所述第二预设电压值,则采用恒压充电方式对所述电池进行充电,直至所述电池充电完成。 13. The method according to claim 11, wherein said charging voltage according to charging chip, and the command sent by the processor battery, charging the battery, comprising: if the battery voltage is less than the said first predetermined voltage value, the trickle charge mode to charge the battery; if the battery voltage reaches the first predetermined voltage value, the variable current is used to charge the battery, and in the charging process of charging chip, charging the chip and the output current of the LDO circuit and the output current of constant current, the constant current does not exceed the maximum current value of the battery is subjected; if the battery voltage reaches the second predetermined voltage value, the constant voltage charging to charge the battery until the battery is fully charged.
  14. 14.根据权利要求12或13所述的方法,其特征在于,所述移动终端还包括:充电接口;所述充电接口的一端用于与充电器连接,所述充电接口的另一端用于与所述充电芯片的输入端、以及所述LDO电路的输入端连接;所述处理器检测到所述电池开始充电包括: 当所述处理器检测到充电器插入所述充电接口时,则确定所述电池开始充电。 14. The method of claim 12 or claim 13, wherein the mobile terminal further comprising: a charging interface; the charging end of the interface for connecting the charger, the charging end for interfacing with other the charging chip input terminal, and an input terminal of the LDO circuit; the processor detects that the battery will be charged comprising: when the processor detects that the charger is inserted into the charging port, it is determined that said battery begins charging.
  15. 15.根据权利要求10所述的方法,其特征在于,所述移动终端还包括:设置在所述充电芯片的输出端和所述电池的正极之间的电阻;所述充电方法还包括: 所述充电芯片检测所述电阻两边的电压; 若所述电阻两边的电压大于第三预设阈值,则所述充电芯片停止对所述电池充电。 15. The method according to claim 10, wherein said mobile terminal further comprises: a resistor provided between said positive output terminal and the battery charging chip; said charging method further comprising: the said resistor voltage charge on both sides of the microarray; if the voltage is greater than the resistance on both sides of the third preset threshold value, the charging device stops the charging of the battery.
CN 201610279148 2016-04-28 2016-04-28 Mobile terminal and charging method CN105743185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201610279148 CN105743185A (en) 2016-04-28 2016-04-28 Mobile terminal and charging method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201610279148 CN105743185A (en) 2016-04-28 2016-04-28 Mobile terminal and charging method

Publications (1)

Publication Number Publication Date
CN105743185A true true CN105743185A (en) 2016-07-06

Family

ID=56287769

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201610279148 CN105743185A (en) 2016-04-28 2016-04-28 Mobile terminal and charging method

Country Status (1)

Country Link
CN (1) CN105743185A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5477128A (en) * 1993-07-30 1995-12-19 Technical Associates Co., Ltd. Automatic charging apparatus
CN104218622A (en) * 2013-05-30 2014-12-17 德信无线通讯科技(北京)有限公司 Intelligent charging method of battery
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5477128A (en) * 1993-07-30 1995-12-19 Technical Associates Co., Ltd. Automatic charging apparatus
CN104218622A (en) * 2013-05-30 2014-12-17 德信无线通讯科技(北京)有限公司 Intelligent charging method of battery
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

Similar Documents

Publication Publication Date Title
CN101232196A (en) Control circuit of charging mode in USB charging stand and method thereof
US20120139500A1 (en) Method for limiting battery discharging current in battery charger and discharger circuit
CN203166467U (en) Overvoltage protection circuit
CN103986217A (en) Charger outputting different voltages in self-adaptation mode and implementation method thereof
US20130162196A1 (en) Charger
US20080197707A1 (en) Power management unit with battery detection
CN101499670A (en) Charging systems and control methods for charging current
CN202872411U (en) Intelligent mobile power supply
US20090009138A1 (en) Over-voltage protected battery charger with bypass
US20130069600A1 (en) Method and system for optimizing current limiting behavior of charger
CN103633709A (en) Charge recognition system and method
US20130063098A1 (en) Method and system for power switch temperature regulation
CN102280670A (en) A charging method for the realization of automatic power control
CN101902043A (en) The charging circuit and the radio terminal management apparatus
CN201781302U (en) Integrated battery charger and circuit structure of direct current voltage stabilizing power supply
CN101478171A (en) Power management system
CN1881734A (en) Terminal circuit and its charge controlling method
CN102510115A (en) Intelligent charging control circuit and intelligent charging control method
CN103529890A (en) Soft start device and method
US20140360512A1 (en) Charging method of electronic cigarettes and electronic cigarette box
CN102647011A (en) Buck-boost-integrated wide-range-output automatic-load-detection mobile power circuit
CN101520668A (en) Voltage regulator
CN101651356A (en) Power adapter and charging method thereof
CN101110523A (en) Control method for implementing constant-current charging of battery
CN102118052A (en) Power supply management system

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination