Charge Control Method and Device, and Electronic Device

Abstract

The present disclosure provides a charge control method and device and an electronic device, applied in the electronic device, in which the electronic device includes a charging interface, a charging circuit and a battery coupled in series. The method includes: when a charging device is coupled with the charging interface, determining, by a charge control device, a charging mode supported by the charging device as the high voltage charging mode or the low voltage charging mode, in which a charging voltage of the high voltage charging mode is greater than a charging voltage of the low voltage charging mode; controlling the charging circuit by the charge control device according to the charging mode supported by the charging device, such that the charging circuit charges the battery in the charging mode supported by the charging device.

What is claimed is: 
     
         1 . A method for charging control, applied in an electronic device, wherein the electronic device comprises a charging interface, a charging circuit and a battery coupled in series, the charging circuit comprises a first switch element and a second switch element which can be controlled to make the same charging circuit not only able to charge the battery in a high voltage charging mode but also able to charge the battery in a low voltage charging mode by only controlling the first switch element and the second switch element, and the method comprises:
 in response to that a charging device is coupled with the charging interface, determining a charging mode supported by the charging device as the high voltage charging mode or the low voltage charging mode, in which an input voltage of the high voltage charging mode is greater than an input voltage of the low voltage charging mode;   and   controlling the charging circuit according to the charging mode supported by the charging device, such that the charging circuit charges the battery in the charging mode supported by the charging device, comprising:
 based on a determination that the charging mode supported by the charging device is the low voltage charging mode, controlling the first switch element to switch on, and controlling the second switch element to switch off; and 
 based on a determination that the charging mode supported by the charging device is the high voltage charging mode, controlling the first switch element and the second switch element to switch on alternately. 
   
     
     
         2 . The method according to  claim 1 , wherein, the charging circuit further comprises an inductance element and a capacitance element;
 when the first switch element is in a switch-on state and the second switch element is in a switch-off state, the first switch element receives a charging current transmitted by the charging device and transmits the charging current to the inductance element, and the inductance element transmits the charging current to the capacitance element and the battery respectively, such that the battery is charged; and   when the first switch element is in the switch-off state and the second switch element is in the switch-on state, the inductance element transmits a current to the capacitance element and the battery respectively, and the capacitance element transmits the current to the battery and transmits the current to the second switch element via the ground.   
     
     
         3 . The method according to  claim 1 , wherein, the charging circuit comprises a first detecting circuit and a second detecting circuit;
 wherein controlling the charging circuit according to the charging mode supported by the charging device, such that the charging circuit charges the battery in the charging mode supported by the charging device, comprises:
 determining a charging parameter inputted via a power line of the charging interface by using the first detecting circuit, and determining a charging parameter of the battery by using the second detecting circuit; and 
 controlling the charging circuit according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery, such that the charging circuit charges the battery in the charging mode supported by the charging device. 
   
     
     
         4 . The method according to  claim 3 , wherein, controlling the charging circuit according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery comprises:
 controlling a switch frequency and a duty ratio of each of the first switch element and the second switch element so as to control a switch-on duration of the first switch element and a switch-on duration of the second switch element.   
     
     
         5 . The method according to  claim 3 , wherein, controlling the charging circuit according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery comprises:
 determining whether a charging is abnormal or whether the battery is fully charged according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery;   based on a determination that the charging is abnormal or the battery is fully charged, controlling the first switch element and the second switch element to be in a switch-off state, such that the charging is terminated.   
     
     
         6 . The method according to  claim 1 , wherein a data line of the charging interface is configured to perform communication between the electronic device and the charging device; and
 determining the charging mode supported by the charging device as the high voltage charging mode or the low voltage charging mode comprises:
 receiving, via the data line of the charging interface, indication information sent by the charging device, in which the indication information is configured to indicate the charging mode supported by the charging device; and 
 determining the charging mode supported by the charging device as the high voltage charging mode or the low voltage charging mode according to the indication information. 
   
     
     
         7 . The method according to  claim 6 , wherein the indication information comprises information on protocol version supported by the charging device. 
     
     
         8 . The method according to  claim 1 , wherein each of the first switch element and the second switch element is selected from a group consisting of an MOSFET transistor, a triode and a relay. 
     
     
         9 . A charge control device, applied in an electronic device, wherein the electronic device comprises a charging interface, a charging circuit and a battery coupled in series, the charging circuit comprises a first switch element and a second switch element which can be controlled to make the same charging circuit able to charge the battery in a high voltage charging mode but also able to charge the battery in a low voltage charging mode by only controlling the first switch element and the second switch element, and the charge control device comprises:
 a determining component, configured to determine a charging mode supported by a charging device as the high voltage charging mode or the low voltage charging mode in response to that the charging device is coupled with the charging interface; in which an input voltage of the high voltage charging mode is greater than an input voltage of the low voltage charging mode, in which an input voltage of the high voltage charging mode is greater than an input voltage of the low voltage charging mode; and   a controller, configured to control the charging circuit according to the charging mode supported by the charging device and determined by the determining component, such that the charging circuit charges the battery in the charging mode supported by the charging device,   wherein the controller is further configured to:
 based on a determination that the charging mode supported by the charging device is the low voltage charging mode, control the first switch element to switch on, and control the second switch element to switch off; and 
 based on a determination that the charging mode supported by the charging device is the high voltage charging mode, control the first switch element and the second switch element to switch on alternately. 
   
     
     
         10 . The device according to  claim 9 , wherein, the charging circuit further comprises an inductance element and a capacitance element;
 when the first switch element is in a switch-on state and the second switch element is in a switch-off state, the first switch element receives a charging current transmitted by the charging device and transmits the charging current to the inductance element, and the inductance element transmits the charging current to the capacitance element and the battery respectively, such that the battery is charged; and   when the first switch element is in the switch-off state and the second switch element is in the switch-on state, the inductance element transmits a current to the capacitance element and the battery respectively, and the capacitance element transmits the current to the battery and transmits the current to the second switch element via the ground.   
     
     
         11 . The device according to  claim 9 , wherein, the charging circuit comprises a first detecting circuit and a second detecting circuit;
 wherein the controller is further configured to:
 determine a charging parameter inputted via a power line of the charging interface by using the first detecting circuit, and determining a charging parameter of the battery by using the second detecting circuit; and 
 control the charging circuit according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery, such that the charging circuit charges the battery in the charging mode supported by the charging device. 
   
     
     
         12 . The device according to  claim 11 , wherein the controller is further configured to control the charging circuit according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery by performing:
 controlling a switch frequency and a duty ratio of each of the first switch element and the second switch element so as to control a switch-on duration of the first switch element and a switch-on duration of the second switch element.   
     
     
         13 . The device according to  claim 11 , wherein the controller is further configured to control the charging circuit according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery by performing:
 determining whether a charging is abnormal or whether the battery is fully charged according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery;   based on a determination that the charging is abnormal or the battery is fully charged, controlling the first switch element and the second switch element to be in a switch-off state, such that the charging is terminated.   
     
     
         14 . The device according to  claim 9 , wherein a data line of the charging interface is configured to perform communication between the electronic device and the charging device;
 wherein the determining component is further configured to:
 receive, via the data line of the charging interface, indication information sent by the charging device, in which the indication information is configured to indicate the charging mode supported by the charging device; and 
 determine the charging mode supported by the charging device as the high voltage charging mode or the low voltage charging mode according to the indication information. 
   
     
     
         15 . The device according to  claim 14 , wherein the indication information comprises information on protocol version supported by the charging device. 
     
     
         16 . The device according to  claim 9 , wherein each of the first switch element and the second switch element is selected from a group consisting of an MOSFET transistor, a triode and a relay. 
     
     
         17 . An electronic device, comprising:
 a charging interface;   a charging circuit;   a battery coupled in series; and   a charge control device,   wherein the charging circuit comprises a first switch element and a second switch element which can be controlled to make the same charging circuit able to charge the battery in a high voltage charging mode but also able to charge the battery in a low voltage charging mode by only controlling the first switch element and the second switch element, and   the charge control device comprises:
 a determining component, configured to determine a charging mode supported by a charging device as the high voltage charging mode or the low voltage charging mode in response to that the charging device is coupled with the charging interface, in which an input voltage of the high voltage charging mode is greater than an input voltage of the low voltage charging mode; and 
 a controller, configured to control the charging circuit according to the charging mode supported by the charging device and determined by the determining component, such that the charging circuit charges the battery in the charging mode supported by the charging device, 
   wherein the controller is further configured to:
 based on a determination that the charging mode supported by the charging device is the low voltage charging mode, control the first switch element to switch on, and control the second switch element to switch off; and 
 based on a determination that the charging mode supported by the charging device is the high voltage charging mode, control the first switch element and the second switch element to switch on alternately. 
   
     
     
         18 . The electronic device according to  claim 17 , wherein the charging circuit further comprises an inductance element and a capacitance element;
 when the first switch element is in a switch-on state and the second switch element is in a switch-off state, the first switch element receives a charging current transmitted by the charging device and transmits the charging current to the inductance element, and the inductance element transmits the charging current to the capacitance element and the battery respectively, such that the battery is charged; and   when the first switch element is in the switch-off state and the second switch element is in the switch-on state, the inductance element transmits a current to the capacitance element and the battery respectively, and the capacitance element transmits the current to the battery and transmits the current to the second switch element via the ground.   
     
     
         19 . The electronic device according to  claim 17 , wherein, the charging circuit comprises a first detecting circuit and a second detecting circuit;
 wherein the controller is further configured to:
 determine a charging parameter inputted via a power line of the charging interface by using the first detecting circuit, and determining a charging parameter of the battery by using the second detecting circuit; and 
 control the charging circuit according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery, such that the charging circuit charges the battery in the charging mode supported by the charging device. 
   
     
     
         20 . The electronic device according to  claim 17 , wherein the controller is further configured to control the charging circuit according to the charging parameter inputted via the power line of the charging interface and the charging parameter of the battery by performing:
 controlling a switch frequency and a duty ratio of each of the first switch element and the second switch element so as to control a switch-on duration of the first switch element and a switch-on duration of the second switch element.