WO2018028259A1

WO2018028259A1 - Terminal charging device and method

Info

Publication number: WO2018028259A1
Application number: PCT/CN2017/084393
Authority: WO
Inventors: 曾海军
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-08-09
Filing date: 2017-05-15
Publication date: 2018-02-15
Also published as: CN107706955A

Abstract

A terminal charging device (10) and a terminal charging method. The terminal charging device (10) comprises a main board (11) of a terminal. The main board (11) of the terminal is provided with a pressure regulating chip (12), a charging IC chip (13) electrically connected to the pressure regulating chip (12) and a battery connector (14) electrically connected to the charging IC chip (13). The pressure regulating chip (12) is electrically connected to a charger (20) based on a data line. The battery connector (14) is electrically connected to a battery (15) of the terminal. An output voltage of the pressure regulating chip (12) is greater than or equal to a pre-set voltage of the charging IC chip (13), so that a charging current can maintain a larger current, and the terminal can be charged quickly, thereby improving the charging efficiency of the terminal.

Description

Terminal charging device and method

Technical field

The present disclosure relates to charging technology, and more particularly to a terminal charging apparatus and method.

Background technique

At present, the charging capability of a terminal such as a mobile terminal mainly depends on the output capability of the charger and the impedance of the data line. Once the output capability of the charger is lower than the lower limit or the impedance of the data line is slightly larger, the voltage reaching the charging side becomes smaller. If the charging voltage is lower than the set voltage of the IC (Integrated Circuit) chip in the terminal, according to the charging principle, the charging side reduces the charging current to raise the charging voltage, and the current may be from the original maximum constant current. Such as 3 amps (A) or 2A, 1.5A, etc., reduced to meet the charging conditions of the charging test, such as 1 ampere (A), 0.5A, etc., resulting in the terminal battery can not be fully charged, reducing the terminal's charging efficiency .

Summary of the invention

The main purpose of the embodiments of the present disclosure is to provide a terminal charging apparatus and method, which aim to solve the technical problem of low charging efficiency existing in the current terminal charging mode.

In order to achieve the above object, a terminal charging apparatus according to an embodiment of the present disclosure includes a main board of a terminal, and a main body of the terminal is provided with a voltage regulating chip and a charging IC electrically connected to the voltage regulating chip. a chip, a battery connector electrically connected to the charging IC chip;

The voltage regulating chip is electrically connected to the charger based on the data line, and the battery connector is electrically connected to the battery of the terminal;

The output voltage of the voltage regulating chip is greater than or equal to a set voltage of the charging IC chip.

In an optional embodiment, the input voltage range of the voltage regulating chip includes the input of the charger Into the voltage range.

In an alternative embodiment, the output voltage of the voltage regulating chip is determined by a set voltage of the charging IC chip.

In an alternative embodiment, the voltage regulation chip includes a voltage regulation circuit.

In an optional embodiment, the voltage regulating circuit includes a voltage input terminal, a voltage output terminal, a fault signal output terminal, a current limiting threshold setting terminal, an enable pin, and a ground pin, and the voltage input terminal and the The fault signal output ends are connected by a fixed value resistor, and the current limit threshold setting end and the ground pin are connected by a variable resistor.

In an alternative embodiment, the battery connector is electrically coupled to the battery of the terminal via a flexible circuit board.

In addition, in order to achieve the above object, an embodiment of the present disclosure further provides a terminal charging method, where the terminal is a terminal charging device as described above, and the terminal charging method includes:

When receiving the input voltage transmitted by the charger, the voltage regulating chip adjusts the input voltage according to a preset voltage regulating circuit to obtain an output voltage;

The voltage regulating chip transmits the output voltage to the charging IC chip, so that the charging IC chip transmits the current corresponding to the output voltage to the battery connector, and transmits the battery to the terminal via the battery connector to Charging the battery of the terminal, wherein an output voltage of the voltage regulating chip is greater than or equal to a set voltage of the charging IC chip.

In an optional embodiment, the voltage regulating chip adjusts the input voltage according to a preset voltage regulating circuit when receiving the input voltage transmitted by the charger, and obtaining the output voltage includes:

The voltage regulating chip determines the type of the voltage regulating circuit when receiving the input voltage transmitted by the charger;

The input voltage is adjusted according to the type of the voltage regulating circuit to obtain an output voltage; wherein the type of the voltage regulating circuit includes a boosting circuit and a step-down circuit.

In an optional embodiment, the method for charging a terminal further includes:

When receiving the current adjustment command, the variable resistance in the voltage regulating circuit is adjusted to adjust the output current of the voltage regulating chip.

In an optional embodiment, the terminal charging method further includes: before the adjusting the variable resistance in the voltage regulating circuit when receiving the current adjustment command, the terminal charging method further includes:

The variable resistance in the voltage regulating circuit is adjusted to a minimum value of the resistance to maximize the output current of the voltage regulating chip.

The terminal charging apparatus and method according to the embodiment of the present disclosure, when receiving the input voltage transmitted by the charger, the voltage regulating chip adjusts the input voltage according to a preset voltage regulating circuit to obtain an output voltage, and then outputs the output. Transmitting a voltage into the charging IC chip, wherein the charging IC chip transmits a current corresponding to the output voltage to the battery connector, and transmits the battery to the terminal via the battery connector to charge the battery of the terminal, Since the output voltage of the voltage regulating chip is greater than or equal to the set voltage of the charging IC chip, regardless of the input voltage of the charger, after the adjustment of the voltage regulating chip, the output voltage may be greater than or equal to the charging IC chip. The set voltage allows the charging current to maintain a large current, and the terminal can be quickly charged, thereby improving the charging efficiency of the terminal.

DRAWINGS

1 is a schematic structural view of a preferred embodiment of a terminal charging device of the present disclosure;

2 is a circuit diagram of a voltage regulating circuit in a voltage regulating chip of the present disclosure;

3 is a schematic flow chart of a preferred embodiment of a method for charging a terminal according to the present disclosure;

FIG. 4 is a schematic diagram showing the refinement of the output voltage according to a preset voltage regulating circuit when the input voltage of the voltage regulator chip receives the input voltage transmitted by the charger.

detailed description

It is understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.

In the embodiment of the present disclosure, when receiving the input voltage transmitted by the charger, the voltage regulating chip adjusts the input voltage according to a preset voltage regulating circuit to obtain an output voltage, and then transmits the output voltage to the charging IC chip. And transmitting, by the charging IC chip, the current corresponding to the output voltage to the battery connector, and transmitting the battery to the terminal via the battery connector to charge the battery of the terminal, because the voltage regulating chip The output voltage is greater than or equal to the set voltage of the charging IC chip, no matter how small the input voltage of the charger is transmitted, after the adjustment of the voltage regulating chip, the output voltage can be greater than or equal to the set voltage of the charging IC chip, so that The charging current can maintain a large current, and the terminal can be quickly charged to solve the problem that some chargers or data lines are charged slowly or even not.

At present, the application of terminals, especially mobile terminals, has been very extensive, and the popularity is very high. In order to be fashionable, the design manufacturers are getting thinner and thinner, and the space reserved for the battery is getting smaller and smaller, but the power consumption of the mobile terminal is not There is a significant drop, which puts higher requirements on the battery. In order to meet the demand, a high-voltage (rated voltage) and high-capacity battery is generated, but at the same time the problem arises. Since the standard of the charger has not changed, Therefore, some chargers or some data lines on the market cannot fully charge the high-voltage battery, that is, the output capacity of the charger is lower than the lower limit or the impedance of the data line is slightly larger, and the voltage reaching the charging side becomes smaller. According to the charging principle, the charging side is charged. The charging current is reduced to raise the charging voltage, and the output current is reduced, so that the battery of the terminal cannot reach saturation when charging, and the utilization efficiency of the battery charging will seriously affect the endurance performance of the terminal.

Based on the above problem, an embodiment of the present disclosure provides a terminal charging apparatus.

Referring to FIG. 1, FIG. 1 is a schematic structural diagram of an embodiment of a terminal charging apparatus according to the present disclosure.

In this embodiment, the terminal charging device 10 includes a terminal motherboard 11, and the terminal motherboard 11 is provided with a voltage regulating chip 12, a charging IC chip 13 electrically connected to the voltage regulating chip 12, and the charging IC. a battery connector 14 electrically connected to the chip 13;

The voltage regulating chip 12 is electrically connected to the charger 20 based on the data line 21, the battery connector 14 electrically connected to the battery 15 of the terminal;

The output voltage of the voltage regulating chip 12 is greater than or equal to the set voltage of the charging IC chip 13.

In this embodiment, the charger 20 transmits the input voltage to the voltage regulating chip 12 through the data line 21. The data line 21 in this embodiment may be a universal serial bus (USB) data line. The voltage regulating chip 12 adjusts the input voltage when receiving an input voltage. In this embodiment, the voltage regulating chip includes a voltage regulating circuit, and the voltage regulating circuit includes a boosting circuit and/or The step-down circuit, correspondingly, the voltage regulating chip 12 includes a boost function and/or a buck function.

Therefore, the voltage regulating chip 12 adjusts the input voltage in two ways: boosting and stepping down.

When the voltage regulating chip 12 adjusts and obtains an output voltage, a current is input to the charging IC chip 13 by the output voltage, and the current corresponding to the output voltage is transmitted by the charging IC chip 13 to the battery connector 14. The current is transmitted from the battery connector 14 to the battery 15 of the terminal to charge the battery 15 of the terminal, wherein the output voltage of the voltage regulating chip 12 is greater than or equal to the charging IC chip. 13 set voltage.

It can be understood that, because the output voltage of the voltage output mode provided by the related art is smaller than the set voltage of the charging IC chip 13, the battery 15 of the terminal may be charged too slowly or not, and therefore, in this embodiment, The output voltage of the voltage regulating chip 12 must be greater than or equal to the set voltage of the charging IC chip 13.

For example, the output voltage of the voltage regulating chip 12 is determined by the set voltage of the charging IC chip 13. That is, the output voltage of the voltage regulating chip 12 can be determined by determining the set voltage of the charging IC chip 13, and the output voltage of the voltage regulating chip 12 should also be larger when the setting voltage of the charging IC chip 13 is larger. The larger the setting, of course, the specific value is not limited as long as the output voltage of the voltage regulating chip 12 is greater than or equal to the set voltage of the charging IC chip 13.

Therefore, in the embodiment of the present disclosure, when the terminal charging device is designed, the set voltage of the charging IC chip 13 is determined, and the corresponding voltage regulating chip 12 is selected or designed so that the output voltage of the voltage regulating chip 12 is greater than or It is equal to the set voltage of the charging IC chip 13.

The set voltage of the charging IC chip 13 actually refers to a voltage threshold value for ensuring normal charging of the terminal, which can be expressed by Vin. Only when the output voltage of the voltage regulating chip 12 is greater than or equal to the set voltage of the charging IC chip 13, can the charging speed of the terminal be ensured to meet the normal requirements, not to be too slow, or to fail charging.

In an alternative embodiment, the input voltage range of the voltage regulating chip 12 includes an input voltage range of the charger 20.

In this embodiment, the voltage regulating chip 12 needs to adjust the input voltage transmitted by the charger 20 so that the output voltage is greater than or equal to the set voltage of the charging IC chip 13, and because the voltage of the chip 12 is adjusted. The adjustment range is limited, and the voltage regulating chip 12 can adjust the input voltage only when the input voltage is in the adjustable voltage range of the voltage regulating chip 12. Therefore, in this embodiment, the input voltage of the voltage regulating chip 12 is ensured. The range is greater than the input voltage range of the charger 20.

For example, in a typical charger input voltage range of 4V-5V, in this embodiment, in order to make the input voltage range of the voltage regulating chip 12 include the range of the input voltage of the charger, the voltage regulating chip 12 can be controlled. The input voltage range is 2V-6V. Of course, the specific value is set according to the specific situation, and is not limited herein. The input voltage range of the voltage regulating chip 12 is greater than the input voltage range of the charger 20 to ensure the voltage regulating chip 12 Meet the voltage adjustment of a variety of chargers.

In an optional embodiment, in the voltage regulating circuit corresponding to the voltage regulating chip 12, the voltage regulating circuit includes a voltage input terminal, a voltage output terminal, a fault signal output terminal, a current limiting threshold setting terminal, and an enabling reference. And a grounding pin, the voltage input end and the fault signal output end are connected by a fixed value resistor, and the current limiting threshold setting end and the grounding pin are connected by a variable resistance.

In this embodiment, the voltage regulating circuit of the voltage regulating chip 12 can refer to FIG. 2, wherein the IN table The voltage input terminal, OUT indicates the voltage output terminal, FAULT indicates the fault signal output terminal, ILIM indicates the current limit threshold setting terminal, EN indicates the enable pin, GND indicates the ground pin, Vx indicates the input voltage of the charger transmission, and Vy indicates The voltage regulating chip 12 adjusts the output voltage, R1 represents a constant value resistor, and Rx represents a variable value resistor.

As can be seen from FIG. 2, the voltage input terminal and the fault signal output terminal are connected by a constant value resistor R1, and the current limiting threshold setting terminal and the ground pin are connected by a variable resistor Rx, wherein The value of the fixed value resistor R1 is not limited, and may be set to 10 kΩ. The adjustment mode of the variable resistance Rx may be a software adjustment mode, and the software adjustment mode refers to inputting a corresponding adjustment instruction pair through a terminal. The variable resistor Rx is adjusted in the length of the wire in the circuit. Since the current range can be from 75 mA to 1300 mA, the resistor can be selected from 19.1 kΩ to 232 kΩ with 1% precision resistor. The current required output is 1A, so this resistor is chosen to be a 1% precision resistor of 30.366 kilohms.

At the same time, a capacitor C1 is connected to the wire connected to the outside (charger 20) at the voltage input end. The value of the capacitor C1 is not limited, for example, 10 microfarad (uF). A capacitor C2 is connected to the wire connected to the charging IC chip 13 at the voltage output end. The value of the capacitor C2 is not limited, for example, set to 150 uF. It is worth noting that 10 kΩ of the fixed value resistor R1, 10 uF of the capacitor C1, and 150 uF of the capacitor C2 are merely exemplary, and can be set according to specific conditions.

The fault signal in Figure 2 refers to the signal output when the fault signal output detects the fault of the voltage regulator chip. The control signal refers to the enable signal of the enable pin. The control terminal charging device is turned on and operates. For example, when the control signal is at a high level, the terminal controls the terminal charging device to be in a closed state when the low level signal is not performed, and the charging operation is not performed when the control signal is a high level signal. The control terminal charging device is turned on and works.

In an optional embodiment, the battery connector 14 is electrically connected to the battery 15 of the terminal through a flexible circuit board, that is, when the charging IC chip 13 transmits a current corresponding to the output voltage to the battery. When the connector 14 is connected, the battery connector 14 is powered by a flexible circuit board Streaming to the battery 15 with the terminal to charge the battery 15 of the terminal.

In this embodiment, the voltage regulating chip 12 is disposed between the charger 20 and the charging IC chip 13 for adjusting the input voltage transmitted by the charger 20 so that the output voltage meets the charging requirement, and the final charging IC The current that the chip 13 is charging also meets the charging requirements.

The embodiment of the present disclosure can select or design a suitable voltage regulating circuit, and the input voltage of the charger 20 to the voltage regulating chip 12 can always satisfy the high current charging condition of the charging IC chip 13, and the battery 15 of the terminal is charged, thereby ensuring that the battery 15 of the terminal is charged. The battery 15 of the terminal is fully charged, and the problem that some chargers or data lines are charged for a long time is also solved.

In the terminal charging device according to the embodiment of the present disclosure, when receiving the input voltage transmitted by the charger, the voltage regulating chip adjusts the input voltage according to a preset voltage regulating circuit to obtain an output voltage, and then transmits the output voltage. And charging the IC chip, wherein the charging IC chip transmits a current corresponding to the output voltage to the battery connector, and transmits the battery to the terminal via the battery connector to charge the battery of the terminal; The output voltage of the voltage regulating chip is greater than or equal to the set voltage of the charging IC chip, no matter how small the input voltage of the charger is transmitted, after the adjustment of the voltage regulating chip, the output voltage can be greater than or equal to the setting of the charging IC chip. The constant voltage allows the charging current to maintain a large current, and the terminal battery can be quickly charged to reach saturation, thereby improving the charging efficiency of the terminal.

The embodiment of the present disclosure further provides a terminal charging method.

Referring to FIG. 3, FIG. 3 is a schematic flowchart diagram of an embodiment of a method for charging a terminal according to the present disclosure.

In the embodiment of the present disclosure, the terminal charging method includes:

Step S10, when receiving the input voltage transmitted by the charger, the voltage regulating chip adjusts the input voltage according to a preset voltage regulating circuit to obtain an output voltage;

In this embodiment, when receiving the input voltage transmitted by the charger, the voltage regulating chip adjusts the input voltage according to a preset voltage regulating circuit to obtain an output voltage, and the preset voltage regulating circuit may be liter. The voltage circuit and the step-down circuit, for example, referring to FIG. 4, the step S10 includes:

Step S11, the voltage regulating chip determines the type of the voltage regulating circuit when receiving the input voltage transmitted by the charger;

Step S12, adjusting the input voltage according to the type of the voltage regulating circuit to obtain an output voltage; wherein the type of the voltage regulating circuit includes a boosting circuit and a step-down circuit.

That is, the voltage regulating chip first determines the type of the voltage regulating circuit when receiving the input voltage transmitted by the charger, and if the type of the voltage regulating circuit is a boosting circuit, boosting the input voltage, Obtaining an output voltage; if the type of the voltage regulating circuit is a step-down circuit, stepping down the input voltage to obtain an output voltage.

It should be understood in this embodiment that when the terminal performs charging, the output voltage of the voltage regulating chip is already determined, and needs to be determined when assembling the terminal charging device, specifically, according to the set voltage of the charging IC chip, The larger the set voltage of the charging IC chip, the larger the output voltage selected by the voltage regulating chip is, and the output voltage of the voltage regulating chip is greater than or equal to the set voltage of the charging IC chip.

The type of voltage regulator circuit is determined by the input voltage. That is to say, in the case that the output voltage is determined, if the input voltage transmitted by the charger is smaller than the output voltage, the voltage regulating circuit in the regulating chip is equivalent to the boosting circuit, and the input voltage transmitted by the charger is turned up; If the input voltage of the charger is larger than the output voltage, the voltage regulating circuit in the regulating chip is equivalent to the step-down circuit, and the input voltage transmitted by the charger is turned down, and finally the voltage is adjusted.

For a better understanding of the embodiment, examples are as follows:

Step 1: Set the minimum voltage before using the charger or data cable to reach the charging IC chip on the terminal board is V1;

Assume that a 5 volt (V) standard charger is used to charge the mobile terminal with a current of 1 A. The impedance of the data line with a large impedance is 1 ohm, and the lowest voltage reaching the charging IC chip on the mobile terminal motherboard is 4 V, that is, V1= 4V;

Step 2: Set up a charging IC chip on the terminal board using a part of the charger or data cable. The previous highest voltage is V2 (V2>=V1).

Assume that the 5V standard charger is used, considering that the tolerance of the charger is ±5%, so the upper limit output is 5.25V, the normal data line impedance is 0.3 ohm, and the mobile terminal is charged with 1A current, then the charging to the terminal board is reached. The maximum voltage of the IC chip is 4.95V, that is, V2=4.95V (condition V2>=V1 is satisfied);

Step 3: query the set voltage Vin of the charging IC chip of the mobile terminal;

Take TI's charging IC chip BQ24298 as an example. Query the charging IC chip's specification charging condition Vin for 4.52V, that is, Vin=4.52V (since the charger output voltage V1=4V<Vin=4.52V, this will cause no Charging or charging current is reduced to meet Vin=4.52V, this solution is to solve the problem);

Step 4: Select or design a voltage regulating circuit, set the input voltage range of the voltage regulating circuit to X1-X2, and require the range X1 to be less than or equal to V1, X2 is greater than or equal to V2; set the output voltage of the voltage regulating circuit to V4 , requiring V4 to be greater than or equal to Vin;

According to the above requirements, the input of the voltage regulator circuit should be less than 4V, greater than 4.95V, the output voltage should be greater than 4.52V, the current is greater than 1A, select TI's TPS2553, change the voltage input range of the voltage regulator chip to 2.5-6.5V, meet the above requirements. The output is 5V, 1.3A meets the above requirements, the specific circuit diagram can be seen in Figure 2; (of course, you can also choose other or self-designed boost circuit, as long as the above conditions are met).

Step S20, the voltage regulating chip transmits the output voltage (signal) to the charging IC chip, so that the charging IC chip transmits the current corresponding to the output voltage to the battery connector, and transmits the battery through the battery connector. a battery to the terminal to charge the battery of the terminal, wherein an output voltage of the voltage regulating chip is greater than or equal to a set voltage of the charging IC chip.

In this embodiment, when the voltage regulating chip obtains an output voltage, the output voltage (signal) can be transmitted to the charging IC chip, and when the charging IC chip receives the output voltage (signal), Transmitting a current corresponding to the output voltage to a battery connector, by the battery The connector transmits current to the battery of the terminal to charge the battery of the terminal, thereby completing the charging process of the terminal.

In the terminal charging method of the embodiment of the present disclosure, when receiving the input voltage transmitted by the charger, the voltage regulating chip adjusts the input voltage according to a preset voltage regulating circuit to obtain an output voltage, and then transmits the output voltage. And charging the IC chip, wherein the charging IC chip transmits a current corresponding to the output voltage to the battery connector, and transmits the battery to the terminal via the battery connector to charge the battery of the terminal; The output voltage of the voltage regulating chip is greater than or equal to the set voltage of the charging IC chip, no matter how small the input voltage of the charger is transmitted, after the adjustment of the voltage regulating chip, the output voltage can be greater than or equal to the setting of the charging IC chip. The constant voltage allows the charging current to maintain a large current, and the terminal battery can be quickly charged to a saturated state, thereby improving the charging efficiency of the terminal battery.

In an optional embodiment, the method for charging a terminal further includes:

That is to say, in the voltage regulating circuit of the voltage regulating chip, the adjustment of the output current in the voltage regulating chip can be realized by adjusting the variable value resistor, and adjusting the variable value resistance is actually effective in adjusting the variable value resistance access circuit. The length of the wire changes the resistance of the resistor.

The terminal charging method further includes: before the step of “adjusting the variable resistance in the voltage regulating circuit when receiving the current adjustment command”, the terminal charging method further includes:

That is to say, before adjusting the resistance of the voltage regulating circuit, the variable resistance in the voltage regulating circuit is first adjusted to the minimum value of the resistance to maximize the output current of the voltage regulating chip, and subsequently, when adjusting the resistance Then, the resistance is increased and the current is reduced. It should be understood that the method of adjusting the resistance in this embodiment may adopt a software adjustment mode, that is, adjusting the voltage by adjusting the command. The way the circuit's variable resistance is adjusted.

In this embodiment, by adjusting the variable resistance in the voltage regulating circuit, the current in the voltage regulating circuit is variable, and finally, the current for charging the terminal is changed correspondingly, thereby improving the flexibility of terminal charging.

It is to be understood that the term "comprises", "comprising", or any other variants thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or system that comprises a plurality of elements includes not only those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, item, or system. An element defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in a process, method, article, or system that includes the element, without further limitation.

The above-mentioned serial numbers of the embodiments of the present disclosure are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

The above is only the specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be determined by the scope of the claims.

Industrial applicability

The present disclosure discloses a terminal charging device, the terminal charging device includes a main board of the terminal, and the main board of the terminal is provided with a voltage regulating chip, a charging IC chip electrically connected to the voltage regulating chip, and the charging IC. a battery connector electrically connected to the chip; the voltage regulating chip is electrically connected to the charger based on the data line, the battery connector is electrically connected to the battery of the terminal; wherein an output voltage of the voltage regulating chip is greater than or equal to the charging The set voltage of the IC chip. The present disclosure also discloses a terminal charging method. The disclosure keeps the output voltage of the voltage regulating chip larger than the set voltage of the charging IC chip, so that the terminal can quickly fill the power and improve the efficiency of terminal charging.

Claims

A terminal charging device, the terminal charging device includes a main board of the terminal, and the main board of the terminal is provided with a voltage regulating chip, a charging integrated circuit IC chip electrically connected to the voltage regulating chip, and the charging IC chip Electrically connected battery connector;

The voltage regulating chip is electrically connected to the charger based on the data line, and the battery connector is electrically connected to the battery of the terminal;

The output voltage of the voltage regulating chip is greater than or equal to a set voltage of the charging IC chip.
The terminal charging device of claim 1, wherein the input voltage range of the voltage regulating chip comprises an input voltage range of the charger.
The terminal charging apparatus according to claim 1, wherein an output voltage of said voltage regulating chip is determined by a set voltage of said charging IC chip.
The terminal charging apparatus according to claim 1, wherein said voltage regulating chip comprises a voltage regulating circuit.
The terminal charging device according to claim 4, wherein said voltage regulating circuit comprises a voltage input terminal, a voltage output terminal, a fault signal output terminal, a current limiting threshold setting terminal, an enable pin, and a ground pin, said voltage The input end and the fault signal output end are connected by a fixed value resistor, and the current limiting threshold setting end and the grounding pin are connected by a variable resistance.
The terminal charging device according to any one of claims 1 to 5, wherein the battery connector is electrically connected to a battery of the terminal through a flexible circuit board.
A terminal charging method is applied to a terminal charging device, wherein the terminal charging device includes a main board of the terminal, and a main body of the terminal is provided with a voltage regulating chip, a charging integrated circuit IC chip electrically connected to the voltage regulating chip, and a battery connector electrically connected to the charging IC chip;

The terminal charging method includes:

The voltage regulating chip receives the input voltage of the charger, according to a preset piezoelectricity The circuit adjusts the input voltage to obtain an output voltage;

The voltage regulating chip transmits the output voltage to a charging IC chip, wherein the charging IC chip transmits a current corresponding to the output voltage to a battery connector, and the battery is transmitted to the terminal via the battery connector And charging the battery of the terminal, wherein an output voltage of the voltage regulating chip is greater than or equal to a set voltage of the charging IC chip.
The terminal charging method according to claim 7, wherein the voltage regulating chip adjusts the input voltage according to a preset voltage regulating circuit when receiving the input voltage transmitted by the charger, and obtaining the output voltage includes:

The voltage regulating chip determines the type of the voltage regulating circuit when receiving the input voltage transmitted by the charger;

The input voltage is adjusted according to the type of the voltage regulating circuit to obtain an output voltage; wherein the type of the voltage regulating circuit includes a boosting circuit and a step-down circuit.
The terminal charging method according to claim 7 or 8, wherein the terminal charging method further comprises:

When receiving the current adjustment command, the variable resistance in the voltage regulating circuit is adjusted to adjust the output current of the voltage regulating chip.
The terminal charging method according to claim 9, wherein the terminal charging method further comprises: before the adjusting of the variable resistance in the voltage regulating circuit when receiving the current adjustment command, the terminal charging method further comprises:

The variable resistance in the voltage regulating circuit is adjusted to a minimum value of the resistance to maximize the output current of the voltage regulating chip.