CN110858093A - Mainboard with charging function - Google Patents

Mainboard with charging function Download PDF

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Publication number
CN110858093A
CN110858093A CN201810889784.6A CN201810889784A CN110858093A CN 110858093 A CN110858093 A CN 110858093A CN 201810889784 A CN201810889784 A CN 201810889784A CN 110858093 A CN110858093 A CN 110858093A
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CN
China
Prior art keywords
charging
electronic device
controller
option
power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201810889784.6A
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Chinese (zh)
Inventor
陈元杰
陈金辉
蔡正华
林克讳
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Giga Byte Technology Co Ltd
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Giga Byte Technology Co Ltd
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Priority to CN201810889784.6A priority Critical patent/CN110858093A/en
Priority to TW107212451U priority patent/TWM575881U/en
Publication of CN110858093A publication Critical patent/CN110858093A/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/3296—Power saving characterised by the action undertaken by lowering the supply or operating voltage

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A mainboard with a charging function comprises a connecting interface, a first controller, a second controller and a voltage conversion circuit. The connection interface is used for coupling an electronic device. The first controller is communicated with the electronic device through a first transmission path. The second controller is communicated with the electronic device through a second transmission path. In a first mode, the first controller requests the voltage conversion circuit to generate a first power for the electronic device. In a second mode, the second controller requests the voltage conversion circuit to generate a second power. In a third mode, the first controller determines whether the electronic device is a specific device. When the electronic device is not a specific device, the voltage conversion circuit generates a third power source. When the electronic device is a specific device, the voltage conversion circuit generates a fourth power supply.

Description

Mainboard with charging function
Technical Field
The present invention relates to a motherboard, and more particularly, to a motherboard with a charging function.
Background
With the progress of technology, the types and functions of electronic devices are increasing. Generally, the chargers (or charging wires) of different electronic devices are not compatible. For example, a charging cord of an electronic device of one brand may not be shared with a charging cord of an electronic device of another brand. Therefore, the user needs to prepare a plurality of chargers and charging cords. When the user goes out, need carry a plurality of chargers and corresponding charging wire, greatly increased inconvenience.
Disclosure of Invention
The invention provides a mainboard with a charging function, which comprises a connecting interface, a switching circuit, a first controller, a second controller and a voltage conversion circuit. The connection interface is used for coupling an electronic device. The switching circuit is coupled to the connection interface and provides a first transmission path and a second transmission path. The first controller is coupled to the switching circuit and is communicated with the electronic device through a first transmission path. The second controller is coupled to the switching circuit and is communicated with the electronic device through a second transmission path. The voltage conversion circuit is coupled to the connection interface, the first controller and the second controller. In a normal charging mode, the first transmission path is conducted, and the first controller requests the voltage conversion circuit to generate a first charging power for the electronic device. In a first fast charging mode, the second transmission path is conducted, and the second controller requests the voltage conversion circuit to generate a second charging power for the electronic device. In a second fast charging mode, the first transmission path is conducted, and the first controller determines whether the electronic device is a specific device. When the electronic device is not a specific device, the first controller requests the voltage conversion circuit to generate a third charging power for the electronic device. When the electronic device is a specific device, the first controller requests the voltage conversion circuit to generate a fourth charging power for the electronic device.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 is a schematic diagram of an operating system according to an embodiment of the present invention.
Fig. 2A is a schematic diagram of a charging frame displayed on a screen according to the present invention.
Fig. 2B is an operation diagram of fig. 2A.
Fig. 3A is a schematic view of another charging frame displayed on the screen according to the present invention.
Fig. 3B is an operation diagram of fig. 3A.
Fig. 4 is a schematic diagram of a charging circuit according to the present invention.
Wherein, the reference numbers:
100: an operating system; 110. 140: an electronic device;
120: a main board; 130: a screen;
121. 127: a charging circuit; 122: a central processing unit;
123: a memory; 124: an image processing circuit;
125. 126: connecting an interface; SC: a control signal;
and (3) SI: an image signal; 210. 310: charging a picture;
211. 311: a standard charging option; 212: a first quick charge option;
213: a second quick charge option; 312: a quick charge option;
410: a voltage conversion circuit; 420: a switching circuit;
vout, D +, D-, GND: a pin; 430. 44: a controller;
ST1, ST 2: a trigger signal; PI: inputting a power supply;
PO: a charging power supply; STP: disabling the signal;
421. 422: a switch; PA1, PA 2: a transmission path;
SSW1, SSW 2: a switching signal; 450: a counter.
Detailed Description
The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:
in order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. The present description provides various examples to illustrate the technical features of various embodiments of the present invention. The configuration of the elements in the embodiments is for illustration and not for limitation. In addition, the reference numerals in the embodiments are partially repeated to simplify the description, and do not indicate the relationship between the different embodiments.
FIG. 1 is a schematic diagram of an operating system according to an embodiment of the present invention. As shown, the operating system 100 includes an electronic device 110, a main board 120, and a screen 130. In the embodiment, when the electronic device 110 is coupled to the main board 120, the main board 120 outputs an image signal SI. The screen 130 displays a charging frame for the user to click according to the image signal SI. After the user selects a charging option in the charging screen, the main board 120 outputs a corresponding charging power for charging the electronic device 110. The present invention is not limited to the type of the electronic device 110. In one embodiment, the electronic device 110 is a portable electronic device, such as a smart phone or a tablet.
The main board 120 at least includes a charging circuit 121, a cpu 122, a memory 123, an image processing circuit 124 and a connection interface 125. In one embodiment, the charging circuit 121 notifies the cpu 122 when the electronic device 110 is coupled to the connection interface 125. The cpu 122 executes a charging program stored in the memory 123 to generate a control signal SC. The image processing circuit 124 generates an image signal SI according to the control signal SC. The screen 130 presents a charging frame according to the image signal SI.
The charging screen presented by the screen 130 has a number of charging options. The user selects a proper charging option according to the brand of the electronic device of the user. The cpu 122 instructs the charging circuit 121 to output a proper charging power according to the charging option selected by the user. Since the charging circuit 121 supports a plurality of charging protocols, the user can connect the electronic device 110 to the main board 120 for fast charging by using only one connection line. Therefore, the user does not need to additionally purchase a specific charger.
In addition, the charging circuit 121 can continue to charge the electronic device 110 even when the motherboard 120 is in a Power saving mode (e.g., S3(Suspend to RAM) or S4(Suspend to Disk) in the Advanced Configuration and Power Interface (ACPI) specification). Moreover, with the charging screen displayed on the screen 130, the user can select a proper charging option according to his/her own needs, and the user can also control the charging time to avoid overcharging the battery of the electronic device. The charging screen presented by the screen 130 will be described later by fig. 2A and 3A.
The number of charging circuits and connection interfaces is not limited in the present invention. In other embodiments, the main board 120 further includes a connection interface 126 and a charging circuit 127. When the electronic device 140 is coupled to the connection interface 126, the screen 130 presents a charging screen for the user to select. The charging circuit 127 outputs charging power to the electronic device 140 according to the charging option selected by the user. In one possible embodiment, the charging power output by the charging circuit 121 may be the same as or different from the charging power output by the charging circuit 127.
The present invention does not limit the kind of the screen 130. In one embodiment, the screen 130 may be a touch screen. In this example, the user may directly click on the charging option presented on the screen 130 with a finger. In other embodiments, the user may indirectly select the charging option presented on the screen 130 using other input devices (e.g., a keyboard or a mouse).
In one embodiment, the main board 120 and the screen 130 are integrated into a single electronic device, such as a notebook computer. In other embodiments, the main board 120 is disposed in a housing and electrically connected to the screen 130 through a transmission line. The present invention does not limit the kind of the transmission line. In one embodiment, the transmission line between the motherboard 120 and the screen 130 is a Video Graphics Array (VGA) transmission line, a Digital Video Interface (DVI) transmission line, or a High Definition Multimedia Interface (HDMI) transmission line.
Fig. 2A is a schematic diagram of a charging frame displayed on the screen 131. As shown, the charging screen 210 includes a standard charging option 211, a first fast charging option 212, and a second fast charging option 213. Fig. 2B is an operation diagram of fig. 2A. When the user clicks the standard charging option 211, a controller (e.g., the cpu 122) of the motherboard 120 instructs the charging circuit 121 to provide a first charging power to the electronic device 110. In the present embodiment, the first charging power supply conforms to the specification of the USB developer Forum (USB-IF). For example, the power of the first charging power source may be about 2.5W. At this time, all components of the motherboard 120 operate in a normal mode (e.g., S0 in ACPI specification).
However, when a specific component (e.g., the cpu 122) of the motherboard 120 leaves the normal mode and enters a power saving mode (e.g., S3 or S4 in ACPI specification), the charging circuit 121 may or may not adjust the first charging power. In one embodiment, the charging circuit 121 may maintain or reduce the first charging power, or stop providing the first charging power. In another embodiment, the charging circuit 121 may output a wake-up signal according to a signal generated by the electronic device 110 to wake up a specific device entering the power saving mode. In other embodiments, the charging circuit 121 does not output any wake-up signal. Therefore, the electronic device 110 cannot wake up a specific component entering the power saving mode through the charging circuit 121.
When the user selects the first fast charge option 212, the main board 120 instructs the charging circuit 121 to provide a second charging power to the electronic device 110. In one embodiment, the charging circuit 121 provides the second charging power according to a fast charge2.0 (Quick charge 2.0; QC 2.0) protocol or a fast charge 3.0(Quick charge 3.0; QC 3.0) protocol. Taking fast charge 3.0 as an example, when the electronic device 110 receives the second charging power, the charge of the electronic device 110 may increase from 0% to 80% after about 35 minutes. In this embodiment, the second charging power source is larger than the first charging power source. For example, the power of the second charging power source is about 18W. At this time, the main board 120 operates in a normal mode. In some embodiments, when a specific component of the motherboard 120 enters a power saving mode, the charging circuit 121 may reduce the second charging power, such as from 18W to 5W. In other embodiments, when the user selects the first fast charging option 212, the electronic device 110 cannot wake up a specific component entering the power saving mode through the charging circuit 121.
When the user selects the second fast charging option 213, the charging circuit 121 determines whether the electronic device 110 belongs to a specific device, such as an iPhone 8, iPhone X or iPad Pro manufactured by Apple (Apple) corporation. When the electronic device 110 is not an iPhone 8, iPhone X or iPad Pro, the charging circuit 121 provides a third charging power to the electronic device 110. When the electronic device 110 is an iPhone 8, iPhone X or iPad Pro manufactured by Apple (Apple) corporation, the charging circuit 121 provides a fourth charging power to the electronic device 110. In one possible embodiment, the fourth charging source is larger than the third charging source. For example, the third charging power source is about 12W, and the fourth charging power source is about 15W. In some embodiments, when the electronic device 110 receives the third or fourth charging power, the electronic device 110 may be charged up to 50% in about 30 minutes.
In other embodiments, when a specific component of the motherboard 120 operates in a power saving mode, the charging circuit 121 provides a fifth charging power to the electronic device 110. In this embodiment, the fifth charging power source is smaller than the third and fourth charging power sources. In one possible embodiment, the fifth charging power source is about 5W. At this time, the electronic device 110 cannot wake up a specific component entering the power saving mode through the charging circuit 121.
In other embodiments, the charging frame 210 further includes a time setting option 214 (as shown in fig. 2A). When the user selects the time setting option 214 and inputs a charging time, the charging circuit 121 provides the charging power to the electronic device 110 according to the charging time input by the user. For example, assume that the charging time input by the user is 1 hour. In this example, when the time that the charging circuit 121 outputs the charging power reaches 1 hour, the charging circuit 121 stops outputting the charging power, so as to avoid overcharging the charging battery inside the electronic device 110.
In one embodiment, the user may select one of the standard charging option 211, the first fast charging option 212 and the second fast charging option 213, and then select the time setting option 214 to define the charging time. In another embodiment, the user may select the time setting option 214 and then select one of the standard charging option 211, the first fast charging option 212 and the second fast charging option 213. In other embodiments, the user may select only one of the standard charging option 211, the first fast charging option 212, and the second fast charging option 213, instead of the time setting option 214.
In other embodiments, the main board 120 may have a plurality of connection interfaces and a plurality of charging circuits, wherein each connection interface is coupled to a charging circuit. In this example, each time an electronic device is plugged into a connection interface, the screen 130 presents a corresponding charging frame. For example, when the first electronic device is plugged into a first connection interface, the screen 130 presents a first charging screen for the user to select a charging option suitable for the first electronic device. When the second electronic device is plugged into a second connection interface, the screen 130 presents a second charging screen for the user to select a charging option suitable for the second electronic device. The first charging picture may be the same as or different from the second charging picture. In one embodiment, the user may click a first fast charge option in the first charging screen and click a second fast charge option in the second charging screen. Therefore, the first electronic device and the second electronic device receive different charging power sources.
FIG. 3A is a schematic view of another screen displayed on the screen according to the present invention. As shown, the charging screen 310 includes a standard charging option 311 and a fast charging option 312. Fig. 3B is an operation diagram of fig. 3A. When the user selects the standard charging option 311, the charging circuit 121 provides the first charging power to the electronic device 110. At this time, if a specific component of the motherboard 120 enters a power saving mode, the charging circuit 121 may maintain or reduce the first charging power. In other embodiments, the charging circuit 121 may stop providing the first charging power. In one embodiment, at this time, the charging circuit 121 generates a wake-up signal according to the signal generated by the electronic device 110 to wake up a specific component entering the power saving mode. In another possible embodiment, the charging circuit 121 does not generate any wake-up signal.
When the user selects the fast charging option 312, the charging circuit 121 determines whether the electronic device 110 is a product of apple inc. In one embodiment, the charging circuit 121 determines whether the electronic device 110 is a product of apple, inc. For example, when the electronic device 110 does not have an IOS system, it means that the electronic device 110 is not a product of apple inc. Therefore, the charging circuit 121 provides the second charging power to the electronic device 110. The second charging power supply is larger than the first charging power supply. At this time, if a specific component of the motherboard 120 enters a power saving mode, the charging circuit 121 may reduce the second charging power. At this time, the charging circuit 121 does not generate the wake-up signal.
When the electronic device 110 has an IOS system, it means that the electronic device 110 is a product of apple inc. Therefore, the charging circuit 121 determines whether the electronic device 110 is a specific device, such as iPhone 8, iPhone X or iPad Pro. When the electronic device 110 is not a specific device, the charging circuit 121 provides a third charging power to the electronic device 110. When the electronic device 110 is a specific device, the charging circuit 121 provides a fourth charging power to the electronic device 110.
At this time, if a specific component (e.g., 122, 123, or 124 of fig. 1) of the motherboard 120 enters a power saving mode, the charging circuit 121 may provide the fifth charging power to the electronic device 110 instead. The fifth charging power supply is larger than the first charging power supply, but smaller than the third and fourth charging power supplies. In one embodiment, when the charging circuit 121 provides the fifth charging power to the electronic device 110, the charging circuit 121 does not generate any wake-up signal.
In other embodiments, the charging circuit 121 determines whether the electronic device 110 is a product of apple Inc. according to a Vendor ID (Vendor ID) of the electronic device 110. In one possible embodiment, the vendor identification code has multiple bits (bit), and the charging circuit 121 determines whether the electronic device 110 is a product of apple Inc. according to at least one bit of the vendor identification code. In this example, the charging circuit 121 determines the model of the electronic device 110, such as iPhone 8, iPhoneX or iPad Pro, according to one or more bits of the manufacturer id.
In other embodiments, the charging frame 310 further includes a time setting option 313 for defining a charging time of the electronic device 110. Since the characteristics of the time setting option 313 are similar to those of the time setting option 214 of fig. 2A, the description thereof is omitted.
Fig. 4 is a schematic diagram of a charging circuit according to the present invention. As shown, the charging circuit 121 includes a voltage converting circuit 410, a switching circuit 420, and controllers 430 and 440. In the present embodiment, the charging circuit 121 is connected to the electronic device 110 through the connection interface 125, and outputs a proper charging power according to the charging option selected by the user.
The present invention does not limit the kind of the connection interface 125. In one embodiment, the connection interface 125 is a USB2.0 connection port or a USB 3.1 connection port. In the present embodiment, the connection interface 125 has pins Vout, D +, D-and GND. The pins Vout and GND are used to transmit the charging power to the electronic device 110. Pins D + and D-are used to transfer data. In one possible embodiment, the charging circuit 121 communicates with the electronic device 110 through the pins D + and D-.
The voltage conversion circuit 410 is coupled to the connection interface 125 for outputting the charging power PO. The voltage converting circuit 410 is further coupled to the controllers 430 and 440 for receiving the trigger signals ST1 and ST 2. In the present embodiment, the voltage converting circuit 410 converts an input power PI according to the trigger signal ST1 or ST2 to generate a charging power PO. In one embodiment, the voltage converting circuit 410 converts the voltage or current of the input power PI and uses the converted result as the charging power PO. In other embodiments, the input power PI is provided by a power supply (not shown). In some embodiments, the voltage conversion circuit 410 stops outputting the charging power PO according to a disable signal STP.
The switch circuit 420 is coupled to the connection interface 125, and transmits signals of the pins D + and D-to the controller 430 or 440 according to the switch signals SSW1 and SSW 2. In the present embodiment, when the switching circuit 420 transmits the signals of the pins D + and D-to the controller 430, the switching circuit 420 does not transmit the signals of the pins D + and D-to the controller 440. When the switching circuit 420 transmits the signals of the pins D + and D-to the controller 440, the switching circuit 420 does not transmit the signals of the pins D + and D-to the controller 430.
The present invention is not limited to the circuit architecture of the switching circuit 420. In one embodiment, the switching circuit 420 has switches 421 and 422. The switch 421 turns on or off the transmission path PA1 according to the switching signal SSW 1. The transmission path PA1 is coupled between pins D + and D-of the connection interface 125 and the controller 440. The switch 422 turns on or off the transmission path PA2 according to the switching signal SSW 2. The transmission path PA2 is coupled between pins D + and D-of the connection interface 125 and the controller 430.
The controller 430 is coupled between the switching circuit 420 and the voltage converting circuit 410. In the present embodiment, the controller 430 communicates with the electronic device 110 through the transmission path PA2, and generates the trigger signal ST2 according to the charging requirement of the electronic device 110. The present invention does not limit the circuit architecture of the controller 430. In one embodiment, the controller 430 is a charge identification integrated circuit. In other embodiments, the controller 430 does not support a wake-up function. Therefore, the controller 430 cannot generate a wake-up signal according to the signal generated by the electronic device 110.
The controller 440 is coupled between the switching circuit 420 and the voltage converting circuit 410. In the present embodiment, the controller 440 communicates with the electronic device 110 through the transmission path PA1, and generates the trigger signal ST1 according to the charging requirement of the electronic device 110. The present invention does not limit the circuit architecture of the controller 440. In one possible embodiment, Controller 440 is a Platform Path Controller (PCH). In another possible embodiment, the controller 440 supports a wake-up function. In this case, the controller 440 can generate a wake-up signal according to the signal of the electronic device 110 to wake up a specific component of the motherboard 120 entering the power saving mode. In other embodiments, controller 440 does not support a wake-up function.
In other embodiments, the controller 440 may communicate with some components of the motherboard 120 via at least one transmission line 441. In one possible embodiment, the controller 440 knows the charging option selected by the user according to the signal of the transmission line 441, and generates the corresponding switching signals SSW1 and SSW2 according to the charging option selected by the user. In another embodiment, the switching signals SSW1 and SSW2 are provided by other components of the motherboard 120 (e.g., a CPU).
When the user selects the standard charging option 211 of fig. 2A or the standard charging option 311 of fig. 3A, the charging circuit 121 enters a standard charging mode. In this mode, the controller 440 turns on the transmission path PA1 and turns off the transmission path PA2 by switching the signals SSW1 and SSW 2. In one embodiment, the controller 440 is not connected to the electronic device 110 and directly commands the voltage converting circuit 410 to generate a charging power PO. At this time, the charging power source PO may be referred to as a first charging power source. In this mode, the charging circuit 121 provides the first charging power to charge the electronic device 110 regardless of whether the operating system of the electronic device 110 is the IOS system or the Andriod system.
Furthermore, in this mode, when the controller 440 knows that a specific component of the motherboard 120 enters a power saving mode, the controller 440 commands the voltage converting circuit 410 to maintain or reduce the charging power PO via the trigger signal ST 1. In other embodiments, the voltage conversion circuit 410 may stop providing the charging power PO. In some embodiments, when the controller 440 supports a wake-up function, the electronic device 110 can wake up a specific component on the motherboard 120 through the controller 440.
When the user selects the first fast charge option 212 of fig. 2A, the charging circuit 121 enters a first fast charge mode. In this mode, the controller 440 does not turn on the transmission path PA1 and turns on the transmission path PA 2. Therefore, the controller 430 communicates with the electronic device 110 through the transmission path PA2 to obtain the charging power required by the electronic device 110. Then, the controller 430 generates a trigger signal ST2 for requesting the voltage converting circuit 410 to generate the charging power PO. At this time, the charging power source PO is referred to as a second charging power source. In this mode, when the controller 430 knows that a specific component of the motherboard 120 enters a power saving mode, the controller 430 requests the voltage conversion circuit 410 to reduce the charging power PO by the trigger signal ST 2. In one embodiment, the power of the charging power source PO is reduced from 18W to 5W.
The present invention does not limit how the controller 430 determines whether a specific component of the motherboard 120 enters a power saving mode. In one embodiment, the controller 430 is coupled to the main board 120 through at least one transmission line (not shown) to know that a specific component of the main board 120 enters a power saving mode. In other embodiments, the controller 430 receives a notification signal from the controller 440 via at least one transmission line (not shown) to inform that a specific component of the motherboard 120 enters a power saving mode.
When the user selects the second fast charge option 213 of fig. 2B, the charging circuit 121 enters a second fast charge mode. In this mode, the controller 440 turns on the transmission path PA1 and does not turn on the transmission path PA 2. At this time, the controller 440 communicates with the electronic device 110 through the transmission path PA1 to know whether the electronic device 110 is a specific device.
When the electronic device 110 is not a specific device, the controller 440 requests the voltage converting circuit 410 to generate the charging power PO via the trigger signal ST 1. At this time, the charging power source PO is referred to as a third charging power source. When the electronic device 110 is a specific device, the controller 440 requests the voltage conversion circuit 410 to generate the charging power PO. At this time, the charging power source PO is referred to as a fourth charging power source.
In this mode, when the controller 440 knows that a specific component of the motherboard 120 enters a power saving mode, the controller 440 turns off the transmission path PA1 and turns on the transmission path PA 2. At this time, the controller 430 may first notify the electronic device 110 via the transmission path PA2 that the charging power is to be reduced. Then, the controller 430 requests the voltage conversion circuit 410 to decrease the charging power PO through the trigger signal ST 2. At this time, the charging power source PO is referred to as a fifth charging power source.
In one embodiment, the fifth charging source is smaller than the third and fourth charging sources. For example, when the electronic device 110 is a specific device, the power of the charging power source PO may be reduced from 15W to 5W. When the electronic device 110 is not a specific device, the power of the charging power source PO may be reduced from 12W to 5W. In other embodiments, the fifth charging power supply is larger than the first charging power supply. When the controller 430 does not support the wake-up function, the electronic device 110 cannot wake up the components entering the power saving mode through the charging circuit 121. In one possible embodiment, the user needs to press a power switch to wake up a specific device entering the power saving mode. In this example, when the specific device is woken up, the controller 440 turns on the transmission path PA1 and turns off the transmission path PA2 to determine whether the electronic device 110 is the specific device, and instructs the voltage converting circuit 410 to output the third or fourth charging power again according to the determination result.
In other embodiments, when the user selects the fast charging option 312 of fig. 3B, the controller 440 turns on the transmission path PA1 to determine whether the electronic device 110 is a product of apple inc. When the electronic device 110 is not a product of apple inc, the charging circuit 121 enters the first fast charging mode. In the first fast charge mode, the charging circuit 121 outputs the second charging power. When the electronic device 110 is a product of apple inc, the charging circuit 121 enters the second fast charging mode. In the second fast charge mode, the charging circuit 121 outputs the third or fourth charging power. Since the operation principle of the charging circuit 121 in the first and second fast charging modes is disclosed above, it is not described again.
In other embodiments, the charging circuit 121 further comprises a counter 450. The counter 450 has a count value. When the user selects the time setting option 214 of fig. 2B or the time setting option 313 of fig. 3B, the counter 450 starts to decrease or increase the count value. When the count value equals a predetermined value, the counter 450 generates a disable signal STP. The voltage conversion circuit 410 stops providing any power to the electronic device 110 according to the disable signal STP. In one possible embodiment, the preset value is related to the charging time inputted by the user.
Since the charging circuit 121 supports a plurality of charging protocols, the user can connect the electronic device 110 to the main board 120 for fast charging by using only one connection line without purchasing a specific charger. Furthermore, when the charging circuit 121 supplies power to the electronic device 110 according to the fast charging 3.0(QC 3.0) protocol, the power of the electronic device 110 can be rapidly increased from 0% to 80% in only 35 minutes. In addition, the charging circuit 121 can also rapidly charge the electric quantity of the electronic device 110 by 50% within 30 minutes. In addition, even when the main board 120 is in a power saving mode (e.g., S3 or S4), the charging circuit 121 can continue to charge the electronic device 110. Furthermore, the charging screen 210 or 310 displayed on the screen 130 is convenient for the user to select a proper charging option according to the self-requirement, and increases the charging time selection as the dual protection of the power management mechanism.
Unless otherwise defined, all terms (including technical and scientific terms) used herein are to be interpreted as commonly understood by one of ordinary skill in the art to which this invention belongs. Moreover, unless expressly stated otherwise, the definition of a term in a general dictionary shall be construed as being consistent with its meaning in the context of the relevant art and shall not be construed as an idealized or overly formal definition.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. For example, embodiments of the present invention may be realized in hardware, software, or a combination of hardware and software. Therefore, the protection scope of the present invention is defined by the claims.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A motherboard with a charging function, comprising:
a connection interface for coupling with an electronic device;
a switching circuit coupled to the connection interface and providing a first transmission path and a second transmission path;
a first controller coupled to the switching circuit and connected to the electronic device via the first transmission path;
the second controller is coupled with the switching circuit and is communicated with the electronic device through the second transmission path;
a voltage conversion circuit coupled to the connection interface, the first controller and the second controller, wherein
In a standard charging mode, the first transmission path is conducted, and the first controller requests the voltage conversion circuit to generate a first charging power for the electronic device;
in a first fast charging mode, the second transmission path is conducted, and the second controller requests the voltage conversion circuit to generate a second charging power for the electronic device;
in a second fast charging mode, the first transmission path is conducted, and the first controller determines whether the electronic device is a specific device, when the electronic device is not the specific device, the first controller requests the voltage conversion circuit to generate a third charging power for the electronic device, and when the electronic device is the specific device, the first controller requests the voltage conversion circuit to generate a fourth charging power for the electronic device.
2. The motherboard with charging function as claimed in claim 1, wherein the second charging source is larger than the first charging source, the third charging source and the fourth charging source, and the fourth charging source is larger than the third charging source.
3. The motherboard with charging function as claimed in claim 1, further comprising:
an image processing circuit for generating an image signal to a screen, wherein the screen presents a frame having a first option, a second option and a third option according to the image signal, and the first option, the second option and the third option are selected from the first option and the third option
When the first option is selected, the first transmission path is conducted, and the voltage conversion circuit generates the first charging power to the electronic device,
when the second option is selected, the second transmission path is conducted and the voltage conversion circuit generates the second charging power to the electronic device,
when the third option is selected, the first transmission path is conducted, and the voltage conversion circuit generates the third or fourth charging power to the electronic device.
4. The motherboard with charging function as claimed in claim 3, further comprising:
the voltage conversion circuit is used for supplying power to the electronic device when the counting value is equal to a preset value.
5. The motherboard with charging function as claimed in claim 4, wherein the frame further comprises a fourth option, and the counter starts counting when the fourth option is selected.
6. The motherboard with charging function as claimed in claim 1, further comprising:
a specific component, in the first fast charging mode, when the specific component enters a power saving mode, the second controller requests the voltage converting circuit to provide a fifth charging power to the electronic device, in the second fast charging mode, when the specific component enters the power saving mode, the first transmission path is conducted, and the first controller requests the voltage converting circuit to provide the fifth charging power to the electronic device.
7. The motherboard with charging function as claimed in claim 6, wherein the fifth charging power is smaller than the third and fourth charging power.
8. The motherboard with charging function as claimed in claim 7, wherein the fifth charging power is larger than the first charging power.
9. The motherboard with charging function as claimed in claim 1, wherein the first controller is a platform Path Controller (PCH) and the second controller is a charging identification integrated circuit.
10. The motherboard with charging function as claimed in claim 1, wherein the second controller requests the voltage conversion circuit to generate the second charging power according to a Quick charge (Quick charge) technique.
CN201810889784.6A 2018-08-07 2018-08-07 Mainboard with charging function Withdrawn CN110858093A (en)

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TW107212451U TWM575881U (en) 2018-08-07 2018-09-12 Motherboard with a charging function

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