CN105429245A - Charging control method and charging control device - Google Patents
Charging control method and charging control device Download PDFInfo
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- CN105429245A CN105429245A CN201511017276.1A CN201511017276A CN105429245A CN 105429245 A CN105429245 A CN 105429245A CN 201511017276 A CN201511017276 A CN 201511017276A CN 105429245 A CN105429245 A CN 105429245A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
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Abstract
The embodiment of the invention discloses a charging control method and a charging control device for detecting a protocol type of a charging protocol for a to-be-charged device and charging the to-be-charged device according to the protocol type to enable a mobile terminal to use the charging control device for charging no matter what charging protocol is supported. The method of the embodiment of the invention comprises steps: when the to-be-charged device is connected, the protocol type of the charging protocol for the to-be-charged device is determined; control signals are generated according to the protocol type, wherein the control signals comprise a voltage configuration contorl signal and a circuit control signal; and according to the control signals, the to-be-charged device is charged.
Description
Technical Field
The present invention relates to the field of charging technologies, and in particular, to a charging control method and a charging control apparatus.
Background
The principle of the charger baby charging technology in the prior art is as follows: the charger outputs 5V large current, the output specification of the adapter is 5V/4.5A (22.5W), or the output specification of the adapter is improved to 5V/5A (25W).
However, the charging technology is a set of customized circuits, battery cells, interfaces, data lines and adapters matched with a control chip of a charger bank, which are all specific to a specific mobile terminal and are not suitable for other mobile terminals.
Disclosure of Invention
The embodiment of the invention provides a charging control method and a charging control device, which are used for detecting the protocol type of a charging protocol of equipment to be charged and charging the equipment to be charged according to the protocol type, so that a mobile terminal can be charged by using the charging control device no matter what charging protocol is supported.
A first aspect of the present invention provides a charge control method, including:
when the equipment to be charged is accessed, determining the protocol type of a charging protocol of the equipment to be charged;
generating control signals according to the protocol type, wherein the control signals comprise voltage configuration control signals and circuit control signals;
and charging the equipment to be charged according to the control signal.
With reference to the first aspect of the present invention, in a first implementation manner of the first aspect of the present invention, determining a protocol type of a charging protocol of a device to be charged includes:
acquiring positive and negative electrode level values of equipment to be charged and a bus power supply VBUS level signal;
judging whether the charging protocol of the equipment to be charged is a quick charging protocol or not according to the positive and negative level values;
if the charging protocol is a quick charging protocol, determining the protocol type of the charging protocol;
and if the charging protocol is not the quick charging protocol, disconnecting the charging protocol from the equipment to be charged.
With reference to the first implementation manner of the first aspect of the present invention, in a second implementation manner of the first aspect of the present invention, the determining a protocol type of the charging protocol includes:
matching a charging protocol according to the VBUS level signal or the positive and negative level values;
if so, identifying the protocol type of the charging protocol;
if the positive and negative electrode level values are not matched, a temporary protocol is negotiated with the equipment to be charged according to the positive and negative electrode level values, and the protocol type of the temporary protocol is determined.
With reference to the first aspect of the present invention, in a third implementation manner of the first aspect of the present invention, the charging the device to be charged according to the control signal includes:
the control circuit is connected with the booster circuit according to a circuit control signal in the control signals;
the booster circuit configures a charging voltage according to a voltage configuration control signal in the control signal, and charges the equipment to be charged through VBUS;
or,
and charging the equipment to be charged through the VBUS according to the circuit control signal in the control signal.
A second aspect of the present invention provides a charge control device including:
the protocol module is used for determining the protocol type of a charging protocol of the equipment to be charged when the equipment to be charged is accessed;
the processing module is used for generating control signals according to the protocol type, and the control signals comprise voltage configuration control signals and circuit control signals;
and the power supply module is used for charging the equipment to be charged according to the control signal.
In combination with the second aspect of the present invention, in the first embodiment of the second aspect of the present invention,
the protocol module is used for acquiring positive and negative electrode level values of the equipment to be charged and bus power supply VBUS level signals;
the protocol module is also used for judging whether the charging protocol of the equipment to be charged is a quick charging protocol according to the positive and negative electrode level values
The protocol module is also used for determining the protocol type of the charging protocol when the charging protocol is a quick charging protocol;
and the protocol module is also used for disconnecting the charging protocol from the equipment to be charged when the charging protocol is not the quick charging protocol.
With reference to the first embodiment of the second aspect of the present invention, in the second embodiment of the second aspect of the present invention, the protocol module includes: a quick charge protocol identification chip and a BC1.2 protocol judgment chip;
the quick charging protocol identification chip is used for matching a charging protocol according to the VBUS level signal or the positive and negative level values;
the quick charging protocol identification chip is used for identifying the protocol type of the charging protocol when the charging protocol is matched;
and the BC1.2 protocol judgment chip is used for negotiating a temporary protocol with the equipment to be charged according to the positive and negative level values when the charging protocol is not matched, and determining the protocol type of the temporary protocol.
With reference to the second aspect of the present invention, in a third embodiment of the second aspect of the present invention, a power supply module includes: a power supply switch and a booster circuit;
the power supply switch is used for being connected with the booster circuit according to a circuit control signal in the control signal;
the boost circuit is used for configuring a charging voltage according to a voltage configuration control signal in the control signal and charging the equipment to be charged through VBUS;
or,
and the power supply switch is used for charging the equipment to be charged through the VBUS according to the circuit control signal in the control signal.
With reference to the third embodiment of the second aspect of the present invention, in a fourth embodiment of the second aspect of the present invention, the power supply module further includes:
and the power supply battery cell is connected with the power supply switch and used for providing electric energy.
With reference to the second aspect of the present invention, the first aspect of the present invention, the second aspect of the present invention, the third aspect of the present invention, or the fourth aspect of the present invention, in a fifth aspect of the present invention, the charge control device further includes:
and the D +/-change-over switch is connected with the protocol module and the processing module and is used for connecting the positive electrode and the negative electrode of the equipment to be charged.
According to the technical scheme, the embodiment of the invention has the following advantages:
when the charging control device is connected to the equipment to be charged, determining the protocol type of the charging protocol of the equipment to be charged; generating control signals according to the protocol type, wherein the control signals comprise voltage configuration control signals and circuit control signals; according to the charging control method and the charging control device, the charging control device can charge the mobile terminals with various charging protocols, and therefore the charging control device is more convenient for users to charge the mobile terminals.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the embodiments and the drawings used in the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an embodiment of a charging control method according to an embodiment of the invention;
fig. 2 is an interaction diagram of a charging control apparatus and a device to be charged according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of a charging control apparatus according to the present invention;
fig. 4 is a schematic structural diagram of another embodiment of a charging control apparatus according to an embodiment of the present invention;
fig. 5 is an interaction diagram of modules in the charging control apparatus and the device to be charged according to the embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a charging control method and a charging control device, which are used for detecting the protocol type of a charging protocol of equipment to be charged and charging the equipment to be charged according to the protocol type, so that a mobile terminal can be charged by using the charging control device no matter what charging protocol is supported.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following are detailed by specific examples, respectively.
Referring to fig. 1, an embodiment of the invention provides a charging control method, including:
101. when the equipment to be charged is accessed, determining the protocol type of a charging protocol of the equipment to be charged;
in this embodiment, when a user needs to charge a device to be charged, the device to be charged is connected to the charging control device, and the charging control device determines the protocol type of the charging protocol of the device to be charged by connecting with a charging line between the device to be charged.
102. Generating control signals according to the protocol type, wherein the control signals comprise voltage configuration control signals and circuit control signals;
in this embodiment, after determining the protocol type of the charging protocol of the device to be charged, the charging control device generates a control signal according to the protocol type, where the control signal includes a voltage configuration control signal and a circuit control signal, the voltage configuration control signal is used to configure the charging voltage, and the circuit control signal is used to configure the charging circuit.
103. And charging the equipment to be charged according to the control signal.
In this embodiment, the charging control device configures the charging voltage or the charging circuit according to the voltage configuration control signal or the circuit control signal in the control signal, and after the configuration, the device to be charged is charged.
In the embodiment of the invention, when the charging control device is connected to the equipment to be charged, the protocol type of the charging protocol of the equipment to be charged is determined; generating a control signal according to the protocol type, wherein the control signal comprises a voltage configuration control signal or a circuit control signal; according to the charging control method and the charging control device, the charging control device can charge the mobile terminals with various charging protocols, and therefore the charging control device is more convenient for users to charge the mobile terminals.
Optionally, in some embodiments of the present invention, determining a protocol type of a charging protocol of a device to be charged includes:
acquiring positive and negative electrode level values of equipment to be charged and a bus power supply VBUS level signal;
judging whether the charging protocol of the equipment to be charged is a quick charging protocol or not according to the positive and negative level values;
if the charging protocol is a quick charging protocol, determining the protocol type of the charging protocol;
and if the charging protocol is not the quick charging protocol, disconnecting the charging protocol from the equipment to be charged.
Optionally, in some embodiments of the present invention, determining the protocol type of the charging protocol includes:
matching a charging protocol according to the VBUS level signal or the positive and negative level values;
if so, identifying the protocol type of the charging protocol;
if the positive and negative electrode level values are not matched, a temporary protocol is negotiated with the equipment to be charged according to the positive and negative electrode level values, and the protocol type of the temporary protocol is determined.
Optionally, in some embodiments of the present invention, charging the device to be charged according to the control signal includes:
the control circuit is connected with the booster circuit according to a circuit control signal in the control signals;
the booster circuit configures a charging voltage according to a voltage configuration control signal in the control signal, and charges the equipment to be charged through VBUS;
or,
and charging the equipment to be charged through the VBUS according to the circuit control signal in the control signal.
For convenience of understanding, the charging control method in the embodiment of the present invention is described in detail in the following practical application scenario:
in the invention, the device to be charged is a mobile terminal, the mobile terminal is a mobile phone, a tablet computer, an intelligent watch and the like, and the charging protocol of the mobile terminal is generally a quick charging protocol, and the types of the existing quick charging protocol are as follows: BC1.2, high-pass Quickcharge, Pumpexpress by MTK, MAXCHARGER by TI, and apple and samsung dedicated fast-charging protocol.
As shown in fig. 2, when a user needs to charge a device to be charged, the device to be charged is connected to the charging control device, the positive electrode and the negative electrode (D +/-) of the device to be charged are connected to a D +/-switch of the charging control device, the VBUS is connected to a power supply switch and a fast charging protocol identification chip, the D +/-switch opens a channel 2 under the control of a switch control signal of the processing module, the positive and negative electrode level values of the device to be charged are sent to the fast charging protocol identification chip, and the fast charging protocol identification chip determines whether the charging protocol of the device to be charged is the fast charging protocol according to the positive and negative electrode level values.
If the charging protocol is not the quick charging protocol, the processing module generates a control signal, and the control signal D +/-switches the switch, the power supply switch and the quick charging protocol identification chip are disconnected with the equipment to be charged.
And if the charging protocol is a quick charging protocol, the quick charging protocol identification chip performs quick charging protocol matching on the charging protocol according to the positive and negative electrode level values or the acquired VBUS level signal.
If the quick charge protocol identification chip is matched with the charging device, the quick charge protocol identification chip is shown to support the charging protocol, the protocol type of the charging protocol is identified, the protocol type is informed to the processing module through an I2C (Inter-Integrated Circuit) bus, the processing module generates a circuit control signal, a channel 3 between the power supply switch and the booster circuit is conducted according to the circuit control signal to supply power to the booster circuit, the quick charge protocol identification chip generates a voltage configuration control signal according to the protocol type, the booster circuit is controlled according to the voltage configuration control signal to obtain corresponding charging voltage, and finally the charging device to be charged is charged through VBUS;
if the quick charging protocol identification chip is not matched, the quick charging protocol identification chip informs the processing module through an I2C bus, the processing module controls a D +/-change-over switch through a switch control signal to close a channel 2 and a channel 3, the channel 1 is opened to enable a BC1.2 protocol judgment chip to obtain positive and negative electrode level values of the equipment to be charged, a temporary protocol is negotiated with the equipment to be charged according to the positive and negative electrode level values, the protocol type of the temporary protocol is determined, the processing module generates a circuit control signal according to the protocol type, a power supply switch opens a channel 4 according to the circuit control signal, and the equipment to be charged is charged through VBUS.
With reference to fig. 3, a charging control circuit according to an embodiment of the present invention is described above, and a charging control device according to an embodiment of the present invention is described below, where one embodiment of the present invention includes:
the protocol module 301 is configured to determine a protocol type of a charging protocol of a device to be charged when the device to be charged is accessed;
a processing module 302, configured to generate a control signal according to a protocol type, where the control signal includes a voltage configuration control signal and a circuit control signal;
and the power supply module 303 is configured to charge the device to be charged according to the control signal.
In the embodiment of the present invention, when the charging control apparatus is connected to the device to be charged, the protocol module 301 determines the protocol type of the charging protocol of the device to be charged; the processing module 302 generates a control signal according to the protocol type, wherein the control signal comprises a voltage configuration control signal or a circuit control signal; the power supply module 303 charges the device to be charged according to the control signal, and thus, compared with the prior art in which the mobile terminal is matched with a specific charging device, the charging control device can charge the mobile terminal with various charging protocols, so that the user can charge the mobile terminal more conveniently.
Alternatively, in some embodiments of the present invention,
the protocol module 301 is configured to obtain positive and negative level values of the device to be charged and a bus power supply VBUS level signal;
the protocol module 301 is further configured to determine whether the charging protocol of the device to be charged is a fast charging protocol according to the positive and negative level values
The protocol module 301 is further configured to determine a protocol type of the charging protocol when the charging protocol is a fast charging protocol;
the protocol module 301 is further configured to disconnect from the device to be charged when the charging protocol is not the fast charging protocol.
Optionally, as shown in fig. 4, in some embodiments of the present invention, the protocol module 301 includes: a quick charge protocol identification chip 3011 and a BC1.2 protocol judgment chip 3012;
the quick charging protocol identification chip 3011 is configured to match a charging protocol according to the VBUS level signal or the positive and negative level values;
the quick charging protocol identification chip 3011 is configured to identify a protocol type of a charging protocol when the charging protocol is matched;
and the BC1.2 protocol judgment chip 3012 is configured to, when the charging protocol is not matched, negotiate a temporary protocol with the device to be charged according to the positive and negative level values, and determine a protocol type of the temporary protocol.
Optionally, as shown in fig. 4, in some embodiments of the present invention, the power supply module 303 includes: a power supply switch 3031 and a booster circuit 3032;
a power supply switch 3031, configured to connect to the voltage boost circuit according to a circuit control signal in the control signal;
the boost circuit 3032 is configured to configure a charging voltage according to a voltage configuration control signal in the control signal, and charge the device to be charged through VBUS;
or,
and the power supply switch 3031 is used for charging the device to be charged through the VBUS according to the circuit control signal in the control signal.
Optionally, as shown in fig. 4, in some embodiments of the present invention, the power supply module 303 further includes:
and the power supply cell 3033 is connected with the power supply switch 3031 and used for supplying electric energy.
Optionally, as shown in fig. 4, in some embodiments of the present invention, the charging control apparatus further includes:
and a D +/-change-over switch 401 connected with the protocol module 301 and the processing module 302 and used for connecting the positive electrode and the negative electrode of the equipment to be charged.
For convenience of understanding, the following describes in detail the interaction between the charging control apparatus and the device to be charged according to an embodiment of the present invention in a specific application scenario:
in the invention, the device to be charged is a mobile terminal, the mobile terminal is a mobile phone, a tablet computer, an intelligent watch and the like, and the charging protocol of the mobile terminal is generally a quick charging protocol, and the types of the existing quick charging protocol are as follows: BC1.2, high-pass Quickcharge, Pumpexpress by MTK, MAXCHARGER by TI, and apple and samsung dedicated fast-charging protocol.
As shown in fig. 5, when a user needs to charge a device to be charged, the device to be charged is connected to the charging control apparatus, positive and negative electrodes of the device to be charged are connected to a D +/-switch 401 of the charging control apparatus, VBUS is connected to a power supply switch 3031 and a fast charging protocol identification chip 3012, the D +/-switch 401 opens a channel 2 under the control of a switch control signal of the processing module 302, positive and negative level values of the device to be charged are sent to the fast charging protocol identification chip 3012, and the fast charging protocol identification chip 3012 determines whether a charging protocol of the device to be charged is a fast charging protocol according to the positive and negative level values.
If the charging protocol is not the fast charging protocol, the processing module 302 generates a control signal, and disconnects the device to be charged according to the control signal D +/-the switch 401, the power supply switch 3031 and the fast charging protocol identification chip 3012.
If the charging protocol is a fast charging protocol, the fast charging protocol identification chip 3012 performs fast charging protocol matching on the charging protocol according to the positive and negative level values or according to the acquired VBUS level signal.
If the quick charge protocol identification chip is matched, it indicates that the quick charge protocol identification chip 3012 supports the charge protocol, identifies the protocol type of the charge protocol, informs the protocol type to the processing module 302 through an I2C bus, the processing module 302 generates a circuit control signal, conducts a channel 3 between the power supply switch 3031 and the boost circuit 3032 according to the circuit control signal, supplies power to the boost circuit 3032, the quick charge protocol identification chip 3012 generates a voltage configuration control signal according to the protocol type, controls the boost circuit 3032 according to the voltage configuration control signal to obtain a corresponding charge voltage, and finally charges the device to be charged through VBUS.
If the quick charging protocol identification chip is not matched, the quick charging protocol identification chip informs the processing module 302 through an I2C bus, the processing module 302 controls a D +/-change-over switch 401 through a switch control signal to close a channel 2 and a channel 3, opens the channel 1 to enable a BC1.2 protocol judgment chip 3031 to obtain positive and negative electrode level values of the equipment to be charged, negotiates a temporary protocol with the equipment to be charged according to the positive and negative electrode level values, determines the protocol type of the temporary protocol, the processing module 302 generates a circuit control signal according to the protocol type, and a power supply switch 3031 opens a channel 4 according to the circuit control signal to charge the equipment to be charged through VBUS.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A charge control method, comprising:
when a device to be charged is accessed, determining the protocol type of a charging protocol of the device to be charged;
generating control signals according to the protocol type, wherein the control signals comprise voltage configuration control signals and circuit control signals;
and charging the equipment to be charged according to the control signal.
2. The charge control method of claim 1, wherein said determining a protocol type of a charging protocol of the device to be charged comprises:
acquiring positive and negative electrode level values of the equipment to be charged and a bus power supply VBUS level signal;
judging whether the charging protocol of the equipment to be charged is a quick charging protocol or not according to the positive and negative level values;
if the charging protocol is a quick charging protocol, determining the protocol type of the charging protocol;
and if the charging protocol is not the quick charging protocol, disconnecting the charging protocol from the equipment to be charged.
3. The charge control method of claim 2, wherein said determining a protocol type of the charging protocol comprises:
matching the charging protocol according to the VBUS level signal or the positive and negative level values;
if so, identifying the protocol type of the charging protocol;
if the positive and negative electrode level values are not matched, a temporary protocol is negotiated with the equipment to be charged according to the positive and negative electrode level values, and the protocol type of the temporary protocol is determined.
4. The charging control method according to claim 1, wherein the charging the device to be charged according to the control signal includes:
the control circuit is connected with the booster circuit according to a circuit control signal in the control signals;
the booster circuit configures a charging voltage according to a voltage configuration control signal in the control signal, and charges the equipment to be charged through VBUS;
or,
and charging the equipment to be charged through VBUS according to the circuit control signal in the control signal.
5. A charge control device, characterized by comprising:
the protocol module is used for determining the protocol type of a charging protocol of the equipment to be charged when the equipment to be charged is accessed;
the processing module is used for generating control signals according to the protocol type, and the control signals comprise voltage configuration control signals and circuit control signals;
and the power supply module is used for charging the equipment to be charged according to the control signal.
6. The charge control device according to claim 5,
the protocol module is used for acquiring positive and negative electrode level values of the equipment to be charged and bus power supply VBUS level signals;
the protocol module is also used for judging whether the charging protocol of the equipment to be charged is a quick charging protocol according to the positive and negative electrode level values
The protocol module is further used for determining the protocol type of the charging protocol when the charging protocol is a quick charging protocol;
and the protocol module is also used for disconnecting the charging protocol from the equipment to be charged when the charging protocol is not a quick charging protocol.
7. The charge control device of claim 6, wherein the protocol module comprises: a quick charge protocol identification chip and a BC1.2 protocol judgment chip;
the quick charging protocol identification chip is used for matching the charging protocol according to the VBUS level signal or the positive and negative level values;
the quick charging protocol identification chip is used for identifying the protocol type of the charging protocol when the charging protocol is matched;
and the BC1.2 protocol judgment chip is used for negotiating a temporary protocol with the equipment to be charged according to the positive and negative electrode level values when the charging protocol is not matched, and determining the protocol type of the temporary protocol.
8. The charge control device according to claim 5, wherein the power supply module includes: a power supply switch and a booster circuit;
the power supply switch is used for being connected with the booster circuit according to a circuit control signal in the control signal;
the boost circuit is used for configuring a charging voltage according to a voltage configuration control signal in the control signal and charging the equipment to be charged through VBUS;
or,
and the power supply switch is used for charging the equipment to be charged through VBUS according to the circuit control signal in the control signal.
9. The charge control device according to claim 8, wherein the power supply module further comprises:
and the power supply battery cell is connected with the power supply switch and used for providing electric energy.
10. The charge control device according to any one of claims 5 to 9, characterized by further comprising:
and the D +/-change-over switch is connected with the protocol module and the processing module and is used for connecting the positive electrode and the negative electrode of the equipment to be charged.
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| CN106130124A (en) * | 2016-07-29 | 2016-11-16 | 宇龙计算机通信科技(深圳)有限公司 | A kind of method, system and terminal realizing multiple fast charge protocol compatibility |
| CN106207294A (en) * | 2016-07-26 | 2016-12-07 | 深圳天珑无线科技有限公司 | A kind of charging method and device |
| CN106230037A (en) * | 2016-07-25 | 2016-12-14 | 深圳天珑无线科技有限公司 | A kind of electronic mobile device charging method, charging device and charging circuit |
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