CN111201689B - Electronic equipment and charging control method - Google Patents
Electronic equipment and charging control method Download PDFInfo
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- CN111201689B CN111201689B CN201780095802.7A CN201780095802A CN111201689B CN 111201689 B CN111201689 B CN 111201689B CN 201780095802 A CN201780095802 A CN 201780095802A CN 111201689 B CN111201689 B CN 111201689B
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- 102100028043 Fibroblast growth factor 3 Human genes 0.000 description 7
- 108050002021 Integrator complex subunit 2 Proteins 0.000 description 7
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- 101100048260 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) UBX2 gene Proteins 0.000 description 4
- 101100365013 Arabidopsis thaliana SCL3 gene Proteins 0.000 description 3
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- 102100025254 Neurogenic locus notch homolog protein 4 Human genes 0.000 description 3
- 101150075681 SCL1 gene Proteins 0.000 description 3
- 101150111792 sda1 gene Proteins 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
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- 101100422768 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SUL2 gene Proteins 0.000 description 1
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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
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Abstract
An electronic device and a charging control method, wherein the electronic device comprises: the electronic equipment further comprises a quick charging channel switch and a charging interface, wherein the quick charging channel switch is respectively connected with a power pin of the charging interface, the processor and the rechargeable battery; when the electronic equipment is connected with a charging device through the charging interface, the processor controls a data pin of the charging interface to be electrically connected with the charging management chip and detects whether the charging device is a first type of device; when the charging equipment is the first type of equipment, the processor controls the quick charging channel switch to be switched off so that the electronic equipment is in a common charging mode. The embodiment of the invention can lead the electronic equipment to select the charging mode which is suitable for the type of the charging equipment connected with the electronic equipment, realize the diversity of the charging mode and simultaneously realize the maximum utilization of the value of the charging equipment.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to an electronic device and a charging control method.
Background
Smart devices such as mobile phones and tablet computers are becoming more popular with consumers, and they may be accessed through a general power adapter, a fast-charging power adapter, or a computer as a USB host device (USB host device)Universal serial bus Bus line(Universal Serial Bus, USB). In the prior art, the intelligent device does not distinguish the types of the charging devices, and can only charge through a single fixed charging channel. In addition, the smart device cannot fully utilize the convenience brought by different charging devices during charging. Therefore, how to make the smart device fully utilize the convenience brought by different charging devices is a problem that needs to be solved urgently at present.
Disclosure of Invention
The embodiment of the invention discloses electronic equipment and a charging control method, which can enable the electronic equipment to select a charging mode suitable for the type of the charging equipment connected with the electronic equipment, realize the diversity of the charging mode and simultaneously realize the maximum utilization of the value of the charging equipment.
The first aspect of the embodiment of the invention discloses electronic equipment, which comprises a processor, a charging management chip and a rechargeable battery, wherein the processor is connected with the charging management chip;
when the electronic equipment is connected with a charging device through the charging interface, the processor controls a data pin of the charging interface to be electrically connected with the charging management chip and detects whether the charging device is a first type of device;
when the charging equipment is the first type of equipment, the processor controls the quick charging channel switch to be switched off so that the electronic equipment is in a common charging mode.
The second aspect of the embodiment of the present invention discloses a charging control method, which is applied to an electronic device, wherein the electronic device includes a processor, a charging management chip and a rechargeable battery, the electronic device further includes a fast charging channel switch and a charging interface, the fast charging channel switch is respectively connected with a power pin of the charging interface, the processor and the rechargeable battery, and the method includes:
when the electronic equipment is connected with a charging device through the charging interface, the electronic equipment controls a data pin of the charging interface to be electrically connected with the charging management chip and detects whether the charging device is a first type of device;
when the charging equipment is the first type of equipment, the electronic equipment controls the quick charging channel switch to be switched off so that the electronic equipment is in a common charging mode.
A third aspect of the embodiments of the present invention discloses a computer-readable storage medium, in which instructions are stored, and when the instructions are executed on a computer, the instructions cause the computer to execute the charging control method according to the second aspect.
A fourth aspect of the embodiments of the present invention discloses a computer program product containing instructions, which, when run on a computer, cause the computer to execute the charging control method according to the second aspect.
In the embodiment of the invention, the electronic equipment comprises a processor, a charging management chip, a rechargeable battery, a quick charging channel switch and a charging interface, wherein the quick charging channel switch is respectively connected with a power pin of the charging interface, the processor and the rechargeable battery; when the electronic equipment is connected with a charging device through the charging interface, the processor controls the data pin of the charging interface to be electrically connected with the charging management chip and detects whether the charging device is a first type of device, and when the charging device is a first type of device, the processor controls the quick charging channel switch to be disconnected so that the electronic equipment is in a common charging mode, the electronic equipment can select a charging mode corresponding to the type of the charging device connected with the electronic equipment, the diversity of the charging mode is realized, and the maximum utilization of the value of the charging device is also realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
FIG. 2a is a schematic structural diagram of a general power adapter according to an embodiment of the present invention;
FIG. 2b is a schematic structural diagram of a fast charging power adapter according to an embodiment of the present invention;
FIG. 2c is a schematic structural diagram of a computer device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another electronic device disclosed in the embodiments of the present invention;
fig. 4a is a schematic structural diagram of a first charging system according to an embodiment of the disclosure, where the charging system includes a general power adapter and an electronic device;
fig. 4b is a schematic structural diagram of a second charging system according to the disclosure of the embodiment of the disclosure, where the charging system includes a fast charging power adapter and an electronic device;
fig. 4c is a schematic structural diagram of a third charging system according to the disclosure of the embodiment of the disclosure, where the charging system includes a computer device and an electronic device;
fig. 5 is a flowchart illustrating a charging control method according to an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The embodiment of the invention discloses electronic equipment and a charging control method, wherein the electronic equipment comprises a processor, a charging management chip, a rechargeable battery, a quick charging channel switch and a charging interface, and the quick charging channel switch is respectively connected with a power pin of the charging interface, the processor and the rechargeable battery. The electronic device and the charging control method provided by the embodiment of the invention can enable the electronic device to select the charging mode suitable for the type of the charging device connected with the electronic device, realize the diversity of the charging mode and simultaneously realize the maximum utilization of the value of the charging device, and are respectively described in detail below.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. The electronic device includes a processor 101, a charge management chip 102, a rechargeable battery 103, a charging interface 104, a quick-charge channel switch 105, and a communication channel switching switch 106. The processor 101 is communicatively coupled to the charge management chip 102. Specifically, the processor 101 includes DSEL2, INT2, SCL2, and SDA2 pins, and the charge management chip 102 includes DSEL1, INT2, SCL1, and SDA1 pins. The DSEL2, INT2, SCL2 and SDA2 pins are respectively connected with the DSEL1, INT2, SCL1 and SDA1 pins, and the INT2, SCL2, SDA2 pins, INT2 pins, SCL1 pins and SDA1 pins are all Integrated Circuit buses (I, I)2C) The pins are used. Power pin V of charging management chip 102BUS2Power pin V of charging interface 104BUS1The output terminal of the charge management chip 102 is connected to the rechargeable battery 103. First end 1051 of quick charging channel switch 105 and power pin V of charging interface 104BUS1The second terminal 1052 of the fast charging channel switch 105 is connected with the rechargeable battery103, and the quick charge passage switch 105 further includes a control terminal 1053. The control terminal 1053 is electrically connected to the SEL pin of the processor 101, and the processor 101 is configured to control the switching state of the fast charge path switch 105 by controlling the output level of the SEL pin.
The communication channel switching switch 106 includes a first switch group 1061, a second switch group 1062, and a third switch group 1063 connected in parallel. One end of the first switch set 1061 is electrically connected to the data pin sets D1+ and D1 "of the charging interface 104, and the other end of the first switch set 1061 is electrically connected to the data pin sets D2+ and D2" of the charging management chip 102. Specifically, the first switch group 1061 includes a first sub-switch 10611 and a second sub-switch 10612, one end of the first sub-switch 10611 is electrically connected to the first data pin D1+ of the charging interface 104, and the other end of the first sub-switch 10611 is electrically connected to the first data pin D2+ of the charging management chip 102; one end of the second sub-switch 10612 is electrically connected to the second data pin D1-of the charging interface 104, and the other end of the second sub-switch 10612 is electrically connected to the second data pin D2-of the charging management chip 102.
One end of the second switch set 1062 is electrically connected to the data pins D1+ and D1 "of the charging interface 104, and the other end of the second switch set 1062 is electrically connected to the communication pin set R of the processor 101XAnd TX. Specifically, the second switch group 1062 includes a third sub-switch 10621 and a fourth sub-switch 10622, one end of the third sub-switch 10621 is electrically connected to the first data pin D1+ of the charging interface 104, and the other end of the third sub-switch 10621 is electrically connected to the first sub-pin R of the communication pin group of the processor 101X(ii) a One end of the fourth sub-switch 10622 is electrically connected to the second data pin D1 "of the charging interface 104, and the other end of the fourth sub-switch 10622 is electrically connected to the second sub-pin T of the communication pin group of the processor 101X。
One end of the third switch set 1063 is electrically connected to the data pins D1+ and D1 "of the charging interface 104, and the other end of the third switch set 1063 is electrically connected to the data pins D3+ and D3" of the processor 101. Specifically, the third switch group 1063 includes a fifth sub-switch 10631 and a sixth sub-switch 10632, one end of the fifth sub-switch 10631 is electrically connected to the first data pin D1+ of the charging interface 104, and the other end of the fifth sub-switch 10631 is electrically connected to the first sub-pin D3+ of the data pin group of the processor 101; one end of the sixth sub-switch 10632 is electrically connected to the second data pin D1-of the charging interface 104, and the other end of the sixth sub-switch 10632 is electrically connected to the second sub-pin D3-of the data pin group of the processor 101. The first control pin groups SEL2 and SEL3 of the communication-channel switching switch 106 are electrically connected to the control pin groups SEL0 and SEL1 of the processor 101, respectively, and the processor 101 is configured to control the switching states of the first switch group 1061, the second switch group 1062, and the third switch group 1063 by controlling the output levels of the control pin groups SEL0 and SEL 1.
For electronic devices, there may be three types of charging devices plugged into charging interface 104, including a normal power adapter, a fast charging power adapter, and a computer device. Referring to fig. 2a, fig. 2b and fig. 2c together, fig. 2a is a schematic diagram of a general power adapter according to an embodiment of the present invention. The common power adapter comprises a controller 201 and a charging interface 202, wherein the charging interface 202 comprises a power pin VBUSA ground pin GND and two data pins D4+ and D4-. Wherein the two data pins D4+ and D4-are shorted. Fig. 2b is a schematic diagram of a fast charging power adapter according to an embodiment of the present invention. The quick charging power adapter comprises a controller 301 and a charging interface 302, wherein the charging interface 302 comprises a power pin VBUSThe ground pin GND, the data pin D5+, and the data pin D5-, wherein the data pin D5+ and the data pin D5-are disconnected and connected to the controller 301. Fig. 2c is a schematic diagram of a computer device according to an embodiment of the present invention. The computer device comprises a controller 401 and a charging interface 402, wherein the charging interface 402 comprises a power supply pin VBUSThe ground pin GND, the data pin D6+, and the data pin D6-, wherein the data pin D6+ and the data pin D6-are disconnected and connected to the controller 401. The computer device includes, but is not limited to, a USB host device such as a notebook computer or a desktop computer.
In the embodiment of the present invention, when a charging device is electrically connected to an electronic device through the charging interface 104, the charging management chip 102 detects that the charging device is electrically connected to the electronic devicePower supply pin VBUS2The upper level is high level and when the power supply pin V is detectedBUS2When the upper level is high level, is passed through2The C protocol communication informs the processor 101 that a charging device is inserted. Wherein, I2The specific process of the protocol C communication is as follows: when the charge management chip 102 has data to transmit to the processor 101, the processor 101 sends a pulse signal to the processor 101 by constantly changing the output level of the INT1 pin, and the processor 101 performs interrupt detection through a rising edge or a falling edge, and performs data communication with the charge management chip 102 through the SCL2 pin and the SDA2 pin after detecting that the INT2 pin has the pulse signal, so as to acquire the data from the charge management chip 102. When a charging device is inserted, the processor 101 acquires the first data from the charging management chip 102 in the above manner, and the first data is used for notifying the processor 101 that the charging device is inserted.
Further, when the processor 101 detects that a charging device is inserted through the charging management chip 102, the processor 101 first controls the first switch set 1061 to be closed, and controls the second switch set 1062 and the third switch set 1063 to be open, so that the data pin sets D1+ and D1 "of the charging interface 104 are electrically connected to the data pin sets D2+ and D2" of the charging management chip 102, respectively. Specifically, the processor 101 closes the first switch group 1061, and opens the second switch group 1062 and the third switch group 1063 by controlling the SEL0 pin and the SEL1 pin to both output a low level. Then, detecting whether the charging device is a first type of device, specifically, the processor 101 determines whether the charging management chip 102 receives a preset communication signal sent by the charging device through the data pin groups D2+ and D2 ", where the preset communication signal is a handshake request signal; when the charging management chip 102 does not receive the preset communication signal, the processor 101 determines that the charging device is the first type of device; wherein the first type of device is a common power adapter.
After the processor 101 determines that the charging device is the first type of device, the processor 101 first identifies whether the quick charging channel switch 105 is in an off state. If not, the processor 101 controls the SEL pin to output a low level to control the quick-charging path switch 105 to be turned off, so that the electronic device is in the normal charging mode. In the normal charging mode, the fast charging channel switch 105 is turned off, and when the electronic device detects that an output (e.g., a voltage output or a current output) of the charging device exists, the charging management chip 102 obtains an input current of the electronic device, that is, an output current of the charging device; then, the charging management chip 102 adjusts the input current of the electronic device to a target charging current and outputs the target charging current to the rechargeable battery 103, wherein the target charging current is smaller than the input current of the electronic device, that is, in the normal charging mode, the electronic device charges the rechargeable battery 103 through the charging management chip 102 to charge the rechargeable battery 103 at a slow speed.
When the charging management chip 102 receives the preset communication signal, the processor 101 determines that the charging device is not the first type of device. When the processor 101 determines that the charging device is not the first type of device, the processor 101 controls the first switch group 1061 and the third switch group 1063 to be open, and controls the second switch group 1062 to be closed, so that the data pin groups D1+ and D1 "of the charging interface 104 are respectively connected to the communication pin group R of the processor 101XAnd TXElectrically connected, communication pin set R of processor 101XAnd TXIs a pin used by a serial communication protocol. Specifically, the processor controls the SEL0 pin to output a high level, the SEL1 pin to output a low level, so that the second switch group 1062 is closed, and the first switch group 1061 and the third switch group 1063 are both opened.
Further, when the second switch group 1062 is closed, the processor 101 detects whether the charging device is a second type of device, wherein the second type of device is a fast charging power adapter. Specifically, the processor 101 communicates through the pin group RX、TXHandshake communication with the charging device may be, for example, processor 101 via communication pin set RX、TXSending a handshake string (e.g., "royole") to the charging device, and if the charging device is a second type of device, the charging device sends the handshake string back to the processor 101 after receiving the handshake string sent by the processor 101; so when the processor 101 is sending the handshake string to the charging deviceIf the handshake character string sent back by the charging device is received within a preset time length (for example, 5ms), determining that handshake communication with the charging device is successful; and if the handshake character string sent back by the charging equipment is not received or the received handshake character sent back by the charging equipment is inconsistent with the sent character, determining that handshake communication with the charging equipment fails.
When the received handshake character sent back by the charging device and the sent character are not consistent, the processor 101 determines that the charging device is not the second type device but a third type device, wherein the third type device is a USB host device such as a computer. When the processor 101 determines that the charging device is the third type of device, the processor 101 controls the first switch group 1061 and the second switch group 1062 to be both open, and controls the third switch group 1063 to be closed, so that the data pin groups D1+ and D1 "of the charging interface 104 are electrically connected with the data pin groups D3+ and D3" of the processor 101, respectively; in turn, the processor 101 may communicate with a USB host device such as a computer in a USB protocol. Specifically, the processor controls the SEL0 pin to output a low level and the SEL1 pin to output a high level, so that the first switch group 1061 and the second switch group 1062 are both opened and the third switch group 1063 is closed. Meanwhile, the processor 101 controls the SEL pin to output a low level to control the quick charging path switch 105 to be turned off, so that the electronic device is in a normal charging mode.
When the handshake character string sent back by the charging device is not received, the processor 101 determines that the charging device is the first type of common power adapter. Because two data pins on the charging interface of the common power adapter are short-circuited with each other, therefore, when the electronic device is connected with the common power adapter, the electronic device cannot be in communication connection with the common power adapter, that is, the electronic device cannot receive a communication signal from the common power adapter.
Wherein when the processor 101 determines that the handshake communication with the charging device is successful, the processor 101 determines that the charging device is the second type of device. When the processor 101 determines that the charging device is the second type of device, the processor 101 controls the SEL pin to output a high levelThe fast charge channel switch 105 is closed, so that the electronic device is in the fast direct charge mode. In the fast direct charging mode, the fast charging channel switch 105 is closed, when the electronic device detects that the voltage output or the current output of the charging device exists, the input current of the electronic device is directly output to the charging battery 103 through the fast charging channel switch 105, that is, in the fast direct charging mode, the electronic device bypasses the charging management chip 102 to charge the charging battery 103, so that the loss of a charging path can be reduced, the current tolerance of the charging management chip 102 does not need to be considered, and the charging battery 103 can be charged by using a larger current to quickly charge the charging battery 103. Further, the processor 101 may communicate through the pin group RX、TXAnd sending a current or voltage adjusting instruction to the charging equipment so as to control the output voltage or the output current of the charging equipment.
Referring to fig. 3, in the embodiment of the present invention, the rechargeable battery 103 further includes an electricity meter chip 1031. As shown in fig. 3, pins SDA3, SCL3, and INT3 of the fuel gauge chip 1031 are electrically connected to pins SDA2, SCL2, and INT3 of the processor 101, respectively; the fuel gauge chip 1031 may interface with the processor 101 via pins SDA3, SCL3, and INT32And C, protocol communication. When the electronic device is in the fast direct charging mode after the electronic device and the charging device are successfully in handshake communication, firstly, the fuel gauge chip 1031 acquires current battery parameters of the charging battery 103, wherein the current battery parameters include temperature, electric quantity and charging current; then, the electricity meter chip 1031 sends the acquired current electric quantity value and temperature value of the rechargeable battery 103 to the processor 101 through pins SDA3, SCL3 and INT 3; the secondary processor 101 determines a first reference current according to the current electric quantity value of the rechargeable battery 103, determines a second reference current according to the current voltage value of the rechargeable battery 103, and determines the minimum value of the first reference current, the second reference current and the maximum charging current of the rechargeable battery 103 as a first target current; further, the processor 103 communicates through the pin group RXAnd TXSending a first current adjustment instruction carrying the first target current value to a second type of fast charging power adapter, wherein the first current adjustment instruction is used for indicating the second type of fast chargingThe source adapter adjusts the value of its output current to the first target current value.
Further, after the processor 103 sends the first current adjustment instruction carrying the first target current value to the charging device, the electricity meter chip 1031 acquires the current charging current value of the rechargeable battery 103 and sends the acquired current charging current value of the rechargeable battery 103 to the processor 101; the processor 101 calculates an error current according to the current charging current value of the rechargeable battery 103 and the first target current value, wherein the error current is equal to the difference between the current charging current value and the first target current value. The processor 101 obtains the current electric quantity value and the temperature value of the rechargeable battery 103 again through the electricity meter chip 1031, and determines the second target current according to the obtained current electric quantity value and the obtained temperature value of the rechargeable battery 103 again, and the specific determination manner may refer to the foregoing description, and is not described herein again. Processor 101 determines a third target current based on the second target current and the error current, wherein the third target current is equal to the sum of the second target current and the error current. The processor 101 determines the third target current and then passes the communication pin group RXAnd TXAnd sending a second current adjusting instruction carrying a third target current value to the second type of quick charge power adapter, wherein the second current adjusting instruction is used for instructing the second type of quick charge power adapter to adjust the value of the output current of the second type of quick charge power adapter to the third target current value. By adopting the above manner, the charging current of the rechargeable battery 103 can be ensured to be consistent with the target current, thereby ensuring that the rechargeable battery 103 is rapidly charged.
In the embodiment of the present invention, the processor 101 may obtain the current charging current, the temperature, and the electric quantity of the rechargeable battery 103 through the fuel gauge chip 1031 every preset time (e.g., 1min), and determine the error current according to the obtained current charging current and the target current that is sent to the fast charging power adapter last time; then, a new target current is determined according to the error current, the current temperature and the electric quantity, and the specific determination mode can refer to the description above and is not described herein again; finally, the new target current is sent to the quick charge power adapter to control the quick charge power adapter to adjust the value of the output current of the quick charge power adapter to the value of the new target current; therefore, the error between the actual charging current and the target current can be continuously reduced, and the rechargeable battery can be ensured to be rapidly charged. When the processor 101 detects that the percentage of the electric quantity of the rechargeable battery 103 is one hundred percent through the electricity meter chip 1031, the SEL pin is controlled to output a low level to turn off the quick charge channel switch 105, so as to end the charging process.
It should be noted that the battery document provided by the battery manufacturer includes the current upper limit of the rechargeable battery 103 under different charging parameters, for example, the current upper limit at the current temperature, the current upper limit at the current electric quantity, the maximum upper limit of the charging current, and the like, and the device manufacturer stores the battery document in the processor 101 of the electronic device in advance in a mapping table, so that the processor 101 may obtain the reference currents under different charging parameters by looking up the mapping table.
In some embodiments, please refer to fig. 4a, fig. 4b and fig. 4c together, in which fig. 4a is an equivalent circuit diagram after a normal power adapter is electrically connected to a charging management chip 102 of an electronic device, fig. 4b is an equivalent circuit diagram after a fast charging power adapter is electrically connected to the charging management chip 102 of the electronic device, and fig. 4c is an equivalent circuit diagram after a computer device is electrically connected to the charging management chip 102 of the electronic device. As shown in fig. 4a, 4b and 4c, the charging management chip 102 of the electronic device includes a voltage detection module 1021. The voltage detection module 1021 includes a voltage detection unit 1022, a resistor R, and a supply voltage interface VCC. One end of the resistor R is connected with a supply voltage interface VCCThe other end of the resistor R is connected to a data pin (D2+ or D2-) of the charge management chip 102 and the voltage detection unit 1022, respectively. The other data pin of the charging management chip 102 is electrically connected to the voltage detection unit 1022 and then grounded. As shown in fig. 4a, when the charging device is a normal power adapter, since the two data pins D4+ and D4-on the charging interface 202 of the normal power adapter are short-circuited, when the electronic device is connected to the normal power adapter, the two data pins D2+ and D2-of the charging management chip 102 of the electronic device and the two data pins D4+ and D4-on the charging interface 202 of the normal power adapter form a conductive loop, so that if power is supplied to the electronic device, the electronic device is not powered by the normal power adapter, and the charging interface 202 of the normal power adapter is not powered by the power supply voltage, thereby providing a power supply voltage for the electronic deviceWhen the voltage interface Vcc is connected to a certain voltage, a current will be generated on the loop, so that the voltage detecting unit 1022 can detect the voltage difference between the two data pins D2+ and D2-of the charge management chip 102. As shown in fig. 4b and 4c, when the charging device is a fast charging power adapter or a computer device, since the two data pins D5+ and D5-on the charging interface 302 of the fast charging power adapter are disconnected and the two data pins D6+ and D6-on the charging interface 402 of the computer device are disconnected, no conductive path is formed between the two data pins D2+ and D2-of the charging management chip 102 of the electronic device, and at this time, the voltage detection unit 1022 cannot detect a voltage difference between the two data pins D2+ and D2-or detect a voltage difference equal to the voltage connected to the power supply voltage interface Vcc. Therefore, after the processor 101 detects that a charging device is inserted, and controls the first switch group 1061 to be closed and the second switch group 1062 and the third switch group 1063 to be opened, so that the data pin groups D1+ and D1- (or the data pins D + and D-) of the charging device) of the charging interface 104 are electrically connected to the data pin groups D2+ and D2-of the charging management chip 102, respectively, it is determined whether the charging device is a first type of device by determining whether the voltage detection unit 1022 detects a specific voltage value.
Specifically, when the voltage value between the node a and the node B detected by the voltage detecting unit 1022, that is, the voltage difference between the two data pins D2+ and D2 "of the charging management chip 102 is smaller than a preset voltage threshold (e.g., 0.33V), the charging management chip 102 may determine that the charging device is a first type of common power adapter; when the voltage value between the node a and the node B detected by the voltage detecting unit 1022 is equal to the preset power supply voltage interface VCCWhen the introduced voltage value or the voltage value is zero, the charging management chip 102 may determine that the charging device is not the first type of ordinary power adapter.
Further, when the charging management chip 102 detects that the charging device is a first type of common power adapter, the DSEL1 pin is controlled to keep outputting a low level; when the charging management chip 102 detects that the charging device is not the first type of ordinary power adapter, the DSEL1 pin is controlled to keep outputting a high level. After detecting that the charging device is plugged in, if detecting that the pin DSEL2 is continuously at a low level, the processor 101 determines that the charging device is a first type of common power adapter; if the DSEL2 pin is detected to be continuously high, then the charging device is determined not to be a first type of ordinary power adapter.
In the embodiment of the invention, the electronic equipment comprises a processor, a charging management chip, a rechargeable battery, a quick charging channel switch and a charging interface, wherein the quick charging channel switch is respectively connected with a power pin of the charging interface, the processor and the rechargeable battery; when the electronic equipment is connected with a charging device through the charging interface, the processor controls the data pin of the charging interface to be electrically connected with the charging management chip and detects whether the charging device is a first type of device, and when the charging device is a first type of device, the processor controls the quick charging channel switch to be disconnected so that the electronic equipment is in a common charging mode, the electronic equipment can select a charging mode corresponding to the type of the charging device connected with the electronic equipment, the diversity of the charging mode is realized, and the maximum utilization of the value of the charging device is also realized.
Referring to fig. 5, fig. 5 is a schematic flow chart of a charging control method according to an embodiment of the present invention. The charging control method described in the embodiment of the present invention is applied to an electronic device, where the electronic device includes a processor, a charging management chip, a rechargeable battery, a fast charging channel switch and a charging interface, the fast charging channel switch is respectively connected to a power pin of the charging interface, the processor and the rechargeable battery, and the charging control method includes:
step 101, after the electronic device is connected with a charging device through a charging interface, controlling a data pin of the charging interface to be electrically connected with the charging management chip.
In the embodiment of the present invention, the electronic device further includes a communication channel switch, where the communication channel switch includes a first switch group, a second switch group, and a third switch group; the first switch group is connected in the data pin of the interface that charges and the data pin of the management chip that charges, and the second switch group electricity is connected in the data pin and the treater of the interface that charge, and the third switch group electricity is connected in the data pin and the treater of the interface that charge. Specifically, when the electronic device detects that the input voltage or the input current exists, the first switch group is controlled to be closed, and the second switch group and the third switch group are controlled to be opened, so that the data pin of the charging interface is electrically connected with the data pin of the charging management chip.
Step 102, detecting whether the charging device is a first type device, if so, executing step 103, and if not, executing step 104.
In the embodiment of the invention, the first type of equipment is a common power adapter, and data pins of a charging interface of the common power adapter are in short circuit. The specific way for the electronic device to detect whether the charging device is the first type of device is as follows: the electronic equipment firstly detects the voltage value between the data pins of the charging management chip, namely detects the voltage value between the data pins of the charging equipment; then judging whether the detected voltage value between the data pins of the charging management chip is smaller than a preset voltage threshold value or not; when the voltage value between the data pins of the charging management chip is judged to be smaller than a preset voltage threshold value, the electronic equipment determines that the charging equipment is equipment of a first type; when the voltage value between the data pins of the charging management chip is judged to be equal to the voltage value introduced by the preset power supply voltage interface or the voltage value is zero, the electronic equipment determines that the charging equipment is not the first type of equipment.
In some embodiments, the specific way for the electronic device to detect whether the charging device is the first type of device is: the electronic equipment judges whether the charging management chip receives a preset communication signal sent by the charging equipment through a data pin of the charging management chip, wherein the preset communication signal is a handshake request signal; when the charging management chip does not receive the preset communication signal within the first preset time length, the processor judges that the charging equipment is the first type of equipment; when the charging management chip receives the preset communication signal, the processor judges that the charging device is not the first type of device.
And 103, controlling the quick charging channel switch to be switched off to enable the electronic equipment to be in a common charging mode.
In the embodiment of the invention, in a common charging mode, the quick charging channel switch is switched off, after the electronic equipment detects that the voltage output or the current output of the charging equipment exists, the charging management chip acquires the input current of the electronic equipment, namely the output current of the charging equipment; then the charging management chip adjusts the input current of the electronic equipment to a target charging current and outputs the target charging current to the rechargeable battery; the target charging current is smaller than the input current of the electronic device, that is, in the normal charging mode, the electronic device charges the rechargeable battery through the charging management chip to charge the rechargeable battery at a low speed.
And step 104, controlling a data pin of the charging interface to be connected with the processor.
Specifically, when the electronic device detects that the charging device is not the first type of device, the electronic device controls the second switch group to be closed, and controls the first switch group and the third switch group to be both opened, so that the data pin of the charging interface is electrically connected with the processor.
Step 105, detecting whether the charging device is a second type device, if so, executing step 106, and if not, executing step 107.
In the embodiment of the invention, the second type of equipment is a quick-charging power adapter, and a data pin of a charging interface of the quick-charging power adapter is disconnected. Specifically, the electronic device sends a Handshake request to the charging device through the processor, where the Handshake request carries first verification information, where the first verification information may be, for example, a fast charge identifier, a specific pulse signal, or a Handshake character (e.g., Handshake). Then, the electronic device receives second verification information sent back by the charging device after receiving the first verification information, wherein the second verification information comprises the first verification information. Finally, the electronic equipment judges whether the first verification information included in the second verification information is consistent with the first verification information sent by the electronic equipment or not; when the first verification information included in the second verification information is consistent with the first verification information sent by the electronic equipment, the electronic equipment judges that handshake communication with the charging equipment is successful; when the first verification information included in the second verification information is inconsistent with the first verification information sent by the electronic equipment, the electronic equipment judges that handshake communication with the charging equipment fails. And if the electronic equipment does not receive the second verification information sent back by the charging equipment according to the first verification information within a second preset time, determining that handshake communication with the charging equipment fails.
Further, the electronic device determines that the charging device is a second type of device when the electronic device is in handshake communication with the charging device successfully, and determines that the charging device is not the second type of device but a third type of device when the electronic device is in handshake communication with the charging device unsuccessfully. The third type of device is a USB host device such as a computer.
And 106, controlling the quick charging channel switch to be closed to enable the electronic equipment to be in a quick direct charging mode.
In the embodiment of the invention, in the fast direct charging mode, the fast charging channel switch is closed, when the electronic equipment detects that the voltage output or the current output of the charging equipment exists, the input current of the electronic equipment is directly output to the charging battery through the fast charging channel switch, namely, in the fast direct charging mode, the electronic equipment bypasses the charging management chip to charge the charging battery, so that the loss of a charging path can be reduced, the current tolerance capacity of the charging management chip does not need to be considered, and the input current of the electronic equipment can be used for directly charging the charging battery so as to rapidly charge the charging battery. Further, the electronic device may send a current or voltage adjustment instruction to the charging device via the processor, thereby controlling the output voltage or output current of the charging device.
In the embodiment of the invention, after the electronic equipment controls the quick charge channel switch to be closed so that the electronic equipment is in the quick direct charge mode, the electronic equipment firstly acquires the current battery parameters of the rechargeable battery, wherein the current battery parameters comprise temperature, electric quantity and charging current; then determining a first reference current according to the obtained current temperature value of the rechargeable battery, determining a second reference current according to the obtained current electric quantity value of the rechargeable battery, and determining the minimum value of the first reference current, the second reference current and the maximum charging current of the rechargeable battery as a first target current; further, the electronic device sends a first current adjustment instruction carrying the first target current value to the charging device through the processor, and the first current adjustment instruction is used for instructing the charging device to adjust the value of the output current of the charging device to the first target current value.
Further, after the electronic device sends a first current adjustment instruction carrying the first target current value to the charging device, the electronic device obtains a current charging current value of the rechargeable battery, and calculates an error current according to the current charging current value of the rechargeable battery and the first target current value, wherein the error current is equal to a difference value between the current charging current value and the first target current value; the electronic device acquires the current electric quantity value and the temperature value of the rechargeable battery again, and determines a second target current according to the acquired current electric quantity value and the acquired temperature value of the rechargeable battery again, and the specific determination mode can refer to the foregoing description and is not repeated herein; further, the electronic device determines a third target current according to the second target current and the error current, wherein the third target current is equal to the sum of the second target current and the error current; after determining the third target current, the electronic device sends a second current adjustment instruction carrying a third target current value to the charging device through the processor, where the second current adjustment instruction is used to instruct the charging device to adjust the value of the output current of the charging device to the third target current value. By adopting the above mode, the charging current of the rechargeable battery can be ensured to be consistent with the target current, so that the rechargeable battery can be ensured to be rapidly charged.
It should be noted that, when the electronic device detects that the percentage of the electric quantity of the rechargeable battery is not one hundred percent, the above steps are repeated every third preset time period; when the electronic equipment detects that the electric quantity percentage of the rechargeable battery is one hundred percent, the electronic equipment controls the quick charging channel switch to be switched off, so that the charging process is finished.
And 107, controlling a data pin of the charging interface to be connected with the processor, and controlling the quick charging channel switch to be disconnected to enable the electronic equipment to be in the common charging mode.
Specifically, when the electronic device detects that the charging device is not the second type device but the third type device, the electronic device controls the third switch group to be closed, and controls the first switch group and the second switch group to be both opened, so that the data pin of the charging interface is electrically connected with the processor. And meanwhile, the quick charging channel switch is controlled to be switched off, so that the electronic equipment is in a common charging mode.
It should be noted that the charging control method provided in the embodiment of the present invention may be applied to the electronic devices shown in fig. 1 and fig. 2, and specific implementation manners thereof may refer to descriptions in the foregoing device embodiments, and are not described herein again.
In the embodiment of the invention, the electronic equipment comprises a processor, a charging management chip, a rechargeable battery, a quick charging channel switch and a charging interface, wherein the quick charging channel switch is respectively connected with a power pin of the charging interface, the processor and the rechargeable battery; when the charging equipment is the first type equipment, the electronic equipment controls the quick charging channel switch to be disconnected to enable the electronic equipment to be in a common charging mode, so that the electronic equipment can select the charging mode corresponding to the type of the charging equipment connected with the electronic equipment, the diversity of the charging mode is realized, and the value of the charging equipment is maximally utilized.
The present invention also provides a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to execute the charging control method described in the above method embodiments.
The present invention also provides a computer program product containing instructions which, when run on a computer, cause the computer to perform the charging control method described in the above method embodiments.
It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art will recognize that the present invention is not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the invention. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required by the invention.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs. The structure of the electronic equipment in the embodiment of the invention can be improved and optimized according to actual needs.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: flash disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (14)
1. An electronic device comprises a processor, a charging management chip and a rechargeable battery, wherein the processor is connected with the charging management chip; the communication channel change-over switch comprises a first switch group, a second switch group and a third switch group, the first switch group is electrically connected with the data pin of the charging interface and the data pin of the charging management chip, and the second switch group and the third switch group are both electrically connected with the data pin of the charging interface and the processor; when the electronic equipment is connected with a charging device through the charging interface, the processor controls the first switch group to be closed, the second switch group and the third switch group to be both opened, and whether the charging device is a first type of device is detected according to whether the charging management chip receives a preset communication signal sent by the charging device through a data pin of the charging management chip;
when the charging management chip does not receive a preset communication signal, the processor judges that the charging equipment is the first type of equipment, and controls the quick charging channel switch to be switched off to enable the electronic equipment to be in a common charging mode, the first type of equipment is a common power adapter, and a data pin of a charging interface of the common power adapter is in short circuit;
when the charging management chip receives a preset communication signal, the processor controls the first switch group and the third switch group to be switched off and controls the second switch group to be switched on, and whether the charging equipment is a second type of equipment is judged according to whether handshake communication between the processor and the charging equipment is successful or not;
when the handshake communication fails, the processor determines that the charging device is a device of a third type, and controls the quick charging channel switch to be disconnected to enable the electronic device to be in the common charging mode, the device of the third type is a USB main device, and data pins of the USB main device are disconnected with each other and connected with a controller of the USB main device.
2. The electronic device of claim 1,
when the handshake communication is successful, the processor determines that the charging equipment is the second type of equipment, and controls the quick charging channel switch to be closed to enable the electronic equipment to be in a quick direct charging mode; and the second type of equipment is a quick-charging power adapter, and a data pin of the quick-charging power adapter is disconnected.
3. The electronic device of claim 2,
when the handshake communication fails, the processor controls the first switch group and the second switch group to be disconnected and controls the third switch group to be closed, so that the data pin of the charging interface is connected with the processor to perform data communication.
4. The electronic device of claim 2, wherein the charging management chip comprises a voltage detection module, the voltage detection module is connected to the charging management chip, and the voltage detection module is configured to detect a voltage value between data pins of the charging management chip;
when the voltage value detected by the voltage detection module is smaller than a preset voltage threshold, the charging management chip determines that the charging device is the first type of device.
5. The electronic device of claim 4, further comprising a fuel gauge chip electrically connected to the processor;
the fuel gauge chip is used for acquiring the current battery parameters of the rechargeable battery when the electronic equipment is in the rapid direct charging mode;
the processor determines a first target current according to the current battery parameter, and sends a first current adjustment instruction carrying the first target current value to the charging device, where the first current adjustment instruction is used to instruct the charging device to adjust the output current of the charging device to the first target current.
6. The electronic device of claim 5, wherein the current battery parameters include temperature and charge;
the processor determines a first reference current according to the temperature of the rechargeable battery, determines a second reference current according to the electric quantity of the rechargeable battery, and determines the minimum value of the first reference current, the second reference current and the maximum charging current of the rechargeable battery as the first target current.
7. The electronic device of claim 6, wherein the current battery parameter further comprises a charging current;
the processor calculates an error of the charging current according to the charging current acquired by the fuel gauge chip and the first target current, wherein the error is equal to a difference value of the charging current and the first target current;
the processor acquires the current battery parameters of the rechargeable battery again through the fuel gauge chip, and determines a second target current according to the acquired current battery parameters again;
the processor is further configured to determine a third target current according to the second target current and an error of the charging current, and send a second current adjustment instruction carrying a third target current value to the charging device, where the second current adjustment instruction is used to instruct the charging device to adjust the output current of the charging device to the third target current.
8. A charging control method is applied to electronic equipment, wherein the electronic equipment comprises a processor, a charging management chip and a rechargeable battery, and is characterized by further comprising a quick charging channel switch, a communication channel change-over switch and a charging interface, wherein the quick charging channel switch is respectively connected with a power pin of the charging interface, the processor and the rechargeable battery, the communication channel change-over switch comprises a first switch group, a second switch group and a third switch group, the first switch group is electrically connected with a data pin of the charging interface and a data pin of the charging management chip, and the second switch group and the third switch group are electrically connected with the data pin of the charging interface and the processor; the method comprises the following steps:
after the electronic equipment is connected with a charging device through the charging interface, the first switch group is controlled to be closed, the second switch group and the third switch group are controlled to be opened, and whether the charging device is a first type of device is detected according to whether the charging management chip receives a preset communication signal sent by the charging device through a data pin of the charging management chip;
when the charging management chip does not receive a preset communication signal, the processor judges that the charging equipment is the first type of equipment, controls the quick charging channel switch to be switched off to enable the electronic equipment to be in a common charging mode, the first type of equipment is a common power adapter, and a data pin of a charging interface of the common power adapter is in short circuit; when the charging management chip receives a preset communication signal, the processor controls the first switch group and the third switch group to be switched off and controls the second switch group to be switched on, and whether the charging equipment is a second type of equipment is judged according to whether handshake communication between the processor and the charging equipment is successful or not;
when the handshake communication fails, the processor determines that the charging device is a device of a third type, and controls the quick charging channel switch to be disconnected to enable the electronic device to be in the common charging mode, the device of the third type is a USB main device, and data pins of the USB main device are disconnected with each other and connected with a controller of the USB main device.
9. The charge control method according to claim 8, wherein the detecting whether the charging device is a first type of device further comprises:
detecting a voltage value between data pins of the charging management chip;
when the voltage value between the data pins of the charging management chip is smaller than a preset voltage threshold, determining that the charging equipment is the first type of equipment;
the first type of equipment is a common power adapter, and data pins of a charging interface of the common power adapter are in short circuit.
10. The charge control method according to claim 8,
when the handshake communication is successful, determining that the charging equipment is the equipment of the second type, and controlling the quick charging channel switch to be closed to enable the electronic equipment to be in a quick direct charging mode; and the second type of equipment is a quick-charging power adapter, and a data pin of the quick-charging power adapter is disconnected.
11. The charging control method according to claim 8, wherein after controlling the fast charging channel switch to close to place the electronic device in a fast direct charging mode, the method further comprises:
acquiring current battery parameters of the rechargeable battery;
determining a first target current according to the current battery parameter;
and sending a first current adjusting instruction carrying the first target current value to the charging equipment, wherein the first current adjusting instruction is used for instructing the charging equipment to adjust the output current of the charging equipment to the first target current.
12. The charge control method according to claim 11, wherein the current battery parameters include temperature and electric quantity, and the determining the first target current according to the current battery parameters specifically includes:
determining a first reference current according to the temperature of the rechargeable battery, and determining a second reference current according to the electric quantity of the rechargeable battery;
determining a minimum value of the first reference current, the second reference current, and a maximum charging current of the rechargeable battery as a first target current.
13. The charge control method of claim 12, wherein the current battery parameter further comprises a charging current, and wherein after sending the first current adjustment instruction carrying the first target current value to the charging device, the method further comprises:
calculating an error of the charging current according to the acquired charging current and the first target current, wherein the error is equal to a difference value of the charging current and the first target current;
obtaining the current battery parameters of the rechargeable battery again, and determining a second target current according to the obtained current battery parameters again;
determining a third target current according to the second target current and the error of the charging current, and sending a second current adjustment instruction carrying the third target current value to the charging equipment, wherein the second current adjustment instruction is used for instructing the charging equipment to adjust the output current of the charging equipment to the third target current.
14. A computer-readable storage medium having stored therein instructions which, when run on a computer, cause the computer to execute the charge control method according to any one of claims 8 to 13.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2017/115447 WO2019113732A1 (en) | 2017-12-11 | 2017-12-11 | Electronic device and charging control method |
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| CN114967894A (en) * | 2022-07-27 | 2022-08-30 | 荣耀终端有限公司 | Electronic device, device identification method and charging system |
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| CN113078696B (en) * | 2020-01-03 | 2024-05-07 | 北京小米移动软件有限公司 | Electronic device, charging method and device thereof, and readable storage medium |
| CN111293744B (en) * | 2020-01-22 | 2022-08-02 | 维沃移动通信有限公司 | Charging method, charging device, electronic device, and medium |
| CN113764754B (en) * | 2020-06-02 | 2023-11-03 | Oppo广东移动通信有限公司 | Charging method, device, equipment and storage medium |
| CN114336816A (en) * | 2020-09-29 | 2022-04-12 | 深圳英集芯科技股份有限公司 | Charging method, related charging device and related charging control chip |
| CN114520524A (en) * | 2020-11-19 | 2022-05-20 | Oppo广东移动通信有限公司 | Power supply device, power supply method, and power supply system |
| CN112366708B (en) * | 2020-11-30 | 2023-07-25 | 深圳市康必达控制技术有限公司 | Charging management method, device, equipment and storage medium |
| CN112994149A (en) * | 2021-02-05 | 2021-06-18 | 深圳市承越创展科技有限公司 | Charging wire, charging system and charging method thereof |
| CN112952952A (en) * | 2021-03-15 | 2021-06-11 | 上海闻泰信息技术有限公司 | Quick charging system, quick charger, electronic device and quick charging method |
| CN113036859B (en) * | 2021-03-15 | 2024-07-16 | Oppo广东移动通信有限公司 | Power supply device, power supply method, and power supply system |
| CN113036862A (en) * | 2021-03-16 | 2021-06-25 | Oppo广东移动通信有限公司 | Power supply device, power supply method, and power supply system |
| CN113113948A (en) * | 2021-04-12 | 2021-07-13 | Oppo广东移动通信有限公司 | Power supply device, power supply method, and power supply system |
| CN117318220A (en) * | 2021-04-13 | 2023-12-29 | 上海传英信息技术有限公司 | Charging chip, charging device and mobile terminal |
| CN113178927A (en) * | 2021-05-18 | 2021-07-27 | 深圳市卡莱福科技有限公司 | Charging system and method capable of automatically adjusting charging mode |
| CN113949123A (en) * | 2021-10-09 | 2022-01-18 | 展讯通信（深圳）有限公司 | Electronic device and charging control method |
| CN114625050B (en) * | 2022-03-21 | 2024-07-26 | 西安易朴通讯技术有限公司 | Electronic equipment and voltage data transmission method |
| CN118152315A (en) * | 2022-12-06 | 2024-06-07 | 华为技术有限公司 | Electronic equipment and charging system |
| CN115603432B (en) * | 2022-12-12 | 2023-03-21 | 深圳市美矽微半导体有限公司 | Charging control chip and charging control method |
| CN117708013A (en) * | 2023-06-09 | 2024-03-15 | 荣耀终端有限公司 | Electronic equipment, control method and related device |
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| CN114967894B (en) * | 2022-07-27 | 2023-01-17 | 荣耀终端有限公司 | Electronic device, device identification method and charging system |
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