CN105790360B - Charging circuit, electronic device, and information processing method - Google Patents
Charging circuit, electronic device, and information processing method Download PDFInfo
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- CN105790360B CN105790360B CN201610222493.2A CN201610222493A CN105790360B CN 105790360 B CN105790360 B CN 105790360B CN 201610222493 A CN201610222493 A CN 201610222493A CN 105790360 B CN105790360 B CN 105790360B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
An embodiment of the present invention provides a charging circuit, including: a power interface capable of being connected with a power supply device; a detecting element including a first end and a second end; wherein the first terminal is connected to the power interface and the second terminal is connected to a first circuit; the first circuit is used for the power interface to supply power to the system through the detection element; the detection unit is connected with the detection element and is used for detecting the electric signal acting on the detection element; the processing unit is connected with the detection unit and used for controlling the system to supply power or generating a control strategy according to the electric signal; wherein the control strategy is used for controlling the working parameters of the system.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to a charging circuit, an electronic device, and an information processing method.
Background
The electronic equipment is usually provided with a power interface which can receive power supplied by power supply equipment, but the quality of the power supply equipment on the market is poor at present, so that the electronic equipment can not supply power when the power consumption is high, and further the electronic equipment is automatically shut down.
On the other hand, because the electronic equipment is small in size, the size of some power interfaces is reduced again and again, and in the plugging process, the problems of short circuit and the like among a plurality of pins in the power interfaces can be caused.
Disclosure of Invention
Embodiments of the present invention are directed to a charging circuit, an electronic device, and an information processing method, which at least partially solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an embodiment of the present invention provides a charging circuit, including:
a power interface capable of being connected with a power supply device;
a detecting element including a first end and a second end; wherein the first terminal is connected to the power interface and the second terminal is connected to a first circuit; the first circuit is used for the power interface to supply power to the system through the detection element;
the detection unit is connected with the detection element and is used for detecting the electric signal acting on the detection element;
the processing unit is connected with the detection unit and used for controlling the system to supply power or generating a control strategy according to the electric signal; wherein the control strategy is used for controlling the working parameters of the system.
Based on the above scheme, the detection unit is specifically configured to detect a first electrical signal formed by the detection element under the action of a first voltage provided by the power interface;
the processing unit is specifically configured to generate a control strategy according to the first electrical signal, where the control strategy is used to control a working parameter of a system.
Based on the above scheme, the processing unit is specifically configured to generate the control policy when the first electrical signal indicates that the first voltage provided by the power interface is smaller than a preset voltage value; wherein the control strategy is used to reduce system power consumption.
Based on the scheme, the control strategy can be used for controlling a system to reduce the working frequency, and/or reduce the working current of the system, and/or close the system to run one or more applications.
Based on the above scheme, the circuit further comprises:
the built-in power supply is connected with the detection element and the power interface to form a second circuit and is used for providing a second voltage for the second circuit before the power interface provides the system power supply;
the detection unit is also used for detecting a second electric signal formed on the detection element under the action of the second voltage;
and the processing unit is also used for outputting a power supply prompt or determining whether to supply power to the system according to the second electric signal.
Based on the above scheme, the processing unit is specifically configured to output an abnormal power supply prompt for stopping power supply of the power interface when the second electrical signal indicates that the current of the second circuit is greater than a preset current value.
Based on the above scheme, the charging circuit further includes:
an impedance element having one end connected to the detecting element 120 and the other end grounded;
the detection element is used for conducting the connection between the impedance element and the detection element and disconnecting the first circuit before the system is powered; wherein the second voltage is also applied to a circuit formed by connecting the detection element and the impedance element;
the processing unit is specifically configured to disconnect the first circuit when the second electrical signal indicates that the power interface is abnormal; and when the second electric signal indicates that the power interface is normal, the first circuit is conducted.
A second aspect of embodiments of the present invention provides an electronic device, including any of the foregoing charging circuits.
A third aspect of the embodiments of the present invention provides an information processing method, including:
detecting an electric signal of the detection element;
according to the electric signal, a power supply interface is controlled to supply power to the system or generate a control strategy through the system provided by the detection element; wherein the control strategy is used for controlling the working parameters of the system.
Based on the above scheme, the detecting the electrical signal of the detecting element includes:
detecting a first electric signal formed by a first voltage provided by the power interface acting on a detection element;
generating a control strategy according to the electric signal, comprising:
and generating a control strategy according to the first electric signal, wherein the control strategy is used for controlling the working parameters of the system.
Based on the above scheme, the generating a control strategy according to the first electric signal includes:
when the first electric signal indicates that the first voltage provided by the power interface is smaller than a preset voltage value, generating the control strategy; wherein the control strategy is used to reduce system power consumption.
Based on the above scheme, the method further comprises at least one of the following steps:
according to the control strategy, reducing the working frequency of the system;
reducing the working current according to the control strategy;
and closing one or more running applications according to the control strategy.
Based on the above scheme, the method further comprises:
before the system is powered, a built-in power supply of the electronic equipment is utilized to provide a second voltage for a second circuit comprising the detection element and the power interface;
the detecting of the electrical signal of the detecting element includes:
detecting a second electric signal formed on the detection element under the action of the second voltage;
the controlling the power interface to supply power to the system provided by the detecting element according to the electric signal includes:
and outputting a power supply prompt or determining whether to supply power to the system according to the second electric signal.
Based on the above scheme, the outputting a power supply prompt according to the second electrical signal includes:
and outputting an abnormal power supply prompt for stopping the power supply of the power interface when the second electric signal indicates that the current of the second circuit is greater than a preset current value.
The charging circuit, the electronic device and the information processing method provided by the embodiment of the invention at least partially solve the problems, the charging circuit is additionally provided with the detection element, the detection unit and the processing unit, and the detection unit can form an electric signal under the action of voltage; the detection unit detects the electric signal of the detection element; the processing unit can determine whether the system is abnormal or not according to the electric signal, then the system is controlled to supply power or generate a control strategy, and working parameters of the system are controlled through the control strategy, so that the phenomena of system automatic shutdown or charging faults and the like caused by short circuit of a power interface due to abnormity of the power interface or the charging process can be reduced.
Drawings
Fig. 1 is a schematic diagram of a first charging circuit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a second charging circuit according to an embodiment of the invention;
FIG. 3 is a diagram illustrating the relationship between voltage, current and power according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a third charging circuit according to an embodiment of the invention;
fig. 5 is a schematic flowchart of an information processing method according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a fourth charging circuit according to an embodiment of the invention;
fig. 7 is a schematic diagram of a fifth charging circuit according to an embodiment of the invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a charging circuit, including:
a power interface 110 that can be used to connect with a power supply device;
a detecting element 120 including a first end and a second end; wherein the first terminal is connected to the power interface 110, and the second terminal is connected to a first circuit; the first circuit is used for the power interface 110 to perform system power supply through the detection element 120;
a detecting unit 130, connected to the detecting element 120, for detecting an electrical signal applied to the detecting element 120;
the processing unit 140 is connected to the detecting unit 130, and is configured to control the system to supply power or generate a control strategy according to the electrical signal; wherein the control strategy is used for controlling the working parameters of the system.
The present embodiment provides a charging circuit, which can be applied to various charging devices or electronic devices requiring power supply. The power source interface 110 may be a Type-C interface, a pin-hole charging interface, or a DC input DC-in interface. The power supply apparatus may be an apparatus including a power adapter or the like connected to an external power source.
In the present embodiment, the detecting element 120 may be various types of electronic devices. The detecting element 120 may include various impedance elements, such as resistors. The first terminal can be used as an input terminal of the detecting element 120; the second terminal can be used as the output terminal of the detecting element 120. The first terminal is connected to the power interface 110, and the second terminal is connected to the first circuit; it means that if there is power supplied through the power interface 110, current flows through the detection element 120 from the first terminal through the power interface 110, and is output from the second terminal of the detection element 120 to the first circuit. Usually, the impedance value of the detecting element 120 is smaller than a predetermined threshold, so as to reduce the power consumption of the detecting element 120 as much as possible.
The detecting unit 130 can detect the electrical signal on the detecting element 120. The electrical signal may be a current signal flowing through the detection element 120, or may be a voltage signal applied to two ends of the detection element 120. The detecting unit 130 in this embodiment may include a current detecting unit or a voltage detecting unit. The detection unit 130 may correspond to a charging chip in which a device capable of detecting current or voltage is disposed.
The detection unit 130 may correspond to a charging chip in which a device capable of detecting current or voltage is disposed.
The processing unit 140 may include various types of structures capable of processing information, such as a microprocessor, an application processor, a digital signal processor, or a programmable array, etc. In this embodiment, the processing unit 140 may be an Embedded Controller (EC).
In this embodiment, the processing unit 140 controls the system power supply through the first circuit or controls the operating parameters of the system by generating a control strategy according to the electrical signal. In this embodiment, the system may be an operating parameter of the electronic device.
The power supply apparatus may be an apparatus including a power adapter or the like connected to an external power source.
The charging circuit in this embodiment can detect the power supply state of the power supply device to the electronic device through the power interface 110 according to the settings of the detecting element 120 and the detecting unit 130, and then the processing unit 140 can adjust the power supply of the system or adjust the working parameters of the system in time according to the electrical signal detected by the detecting unit 130, so as to reduce the abnormal phenomenon caused in the power supply.
Example two:
as shown in fig. 1, the present embodiment provides a charging circuit, including:
a power interface 110 that can be used to connect with a power supply device;
a detecting element 120 including a first end and a second end; wherein the first terminal is connected to the power interface 110, and the second terminal is connected to a first circuit; the first circuit is used for the power interface 110 to perform system power supply through the detection element 120;
a detecting unit 130, connected to the detecting element 120, for detecting an electrical signal applied to the detecting element 120;
the processing unit 140 is connected to the detecting unit 130, and is configured to control the system to supply power or generate a control strategy according to the electrical signal; wherein the control strategy is used for controlling the working parameters of the system.
As shown in fig. 2, the detecting unit 130 is configured to detect a first electrical signal formed by the detecting element 120 under the action of a first voltage provided by the power interface 110; the current direction is from the power interface, through the detecting element 120, and into the first circuit for system power supply. The current direction is indicated by the dashed arrows in fig. 2.
The processing unit 140 is specifically configured to generate a control strategy according to the first electrical signal, where the control strategy is used to control an operating parameter of a system.
In this embodiment, the detecting element 120 forms an electrical signal under the first voltage provided by the power interface 120. In this embodiment, the electrical signal of the detecting element 120 is referred to as a first electrical signal. The first electrical signal may be a current flowing through the detection element 120 or a voltage applied to the detection element 120 when a voltage is input to the power interface 120.
The processing unit 140 generates a control strategy according to the first electrical signal, and controls the operating parameters of the system. In this embodiment, the system may be an operating parameter of the electronic device.
The charging circuit in this embodiment can detect a power supply state of the power supply device to the electronic device through the power interface 110 according to the settings of the detecting element 120 and the detecting unit 130, and then the processing unit 140 can adjust the operating parameters of the system in time according to the first electrical signal detected by the detecting unit 130, so as to reduce abnormal phenomena caused in the power supply.
Example three:
as shown in fig. 1, the present embodiment provides a charging circuit, including:
a power interface 110 that can be used to connect with a power supply device;
a detecting element 120 including a first end and a second end; wherein the first terminal is connected to the power interface 110, and the second terminal is connected to a first circuit; the first circuit is used for the power interface 110 to perform system power supply through the detection element 120;
a detecting unit 130, connected to the detecting element 120, for detecting an electrical signal applied to the detecting element 120;
the processing unit 140 is connected to the detecting unit 130, and is configured to control the system to supply power or generate a control strategy according to the electrical signal; wherein the control strategy is used for controlling the working parameters of the system.
As shown in fig. 2, the detecting unit 130 is configured to detect a first electrical signal formed by the detecting element 120 under the action of a first voltage provided by the power interface 110; the current direction is from the power interface, through the detecting element 120, and into the first circuit for system power supply.
The processing unit 140 is specifically configured to generate a control strategy according to the first electrical signal, where the control strategy is used to control an operating parameter of a system.
The processing unit 140 is specifically configured to generate the control policy when the first electrical signal indicates that the first voltage provided by the power interface 110 is smaller than a preset voltage value; wherein the control strategy is used to reduce system power consumption.
The voltage input by the power supply device through the power interface 110 may be larger or smaller. For example, if the power supply device is an adapter, an abnormality occurs in the adapter, and obviously, an abnormality may also occur due to an excessively large power supply voltage. But what normally causes power supply abnormality is: the system power consumption of the electronic device is too large, which results in too small voltage output by the power supply device with a certain output power through the power interface 110. However, the too low voltage may cause the system to automatically shut down due to the smaller operating voltage, for example, the computer used as the electronic device may automatically shut down.
In this embodiment, the processing unit 140 mainly determines whether the first voltage provided by the power interface 110 is smaller than a preset voltage value according to the first electrical signal. For example, the rated operating voltage of the system is 5V, and the voltage that may cause the system to automatically shut down is 4.7V, and the preset voltage value may be a voltage value preset inside the processing unit 140. For example, the preset voltage value is 4.8V. In this embodiment, if the minimum voltage causing the system abnormality is a, the preset voltage value is a value slightly larger than the preset value of a in this embodiment, so that it can be ensured that the voltage input by the power interface 110 is restored to the working voltage in time through the adjustment of the processing unit and the generation of the control strategy before the electronic device causes the abnormality due to a low working voltage, and the frequency of occurrence of the abnormality is reduced.
In this embodiment, the processing unit 140, when determining whether the first voltage provided by the power interface 110 is less than a preset voltage value, may include:
and inquiring a mapping relation between preset first voltage and the first electric signal by taking the first electric signal as an inquiry basis, and if the first voltage corresponding to the current first electric signal is found to be smaller than the preset current value, generating a control strategy, controlling working parameters of the system and reducing the power consumption of the system. In this embodiment, the mapping relationship between the first voltage and the first electrical signal may be that the electronic device is stored in a storage medium in advance before shipping; obviously, the power supply equipment with power consumption being limited due to overlarge system power consumption can be simply and conveniently reduced, and the abnormal phenomena of automatic system shutdown and the like caused by overlow working voltage supplied to the system due to overlarge system power consumption can be further avoided.
Example four:
as shown in fig. 1, the present embodiment provides a charging circuit, including:
a power interface 110 that can be used to connect with a power supply device;
a detecting element 120 including a first end and a second end; wherein the first terminal is connected to the power interface 110, and the second terminal is connected to a first circuit; the first circuit is used for the power interface 110 to perform system power supply through the detection element 120;
a detecting unit 130, connected to the detecting element 120, for detecting an electrical signal applied to the detecting element 120;
the processing unit 140 is connected to the detecting unit 130, and is configured to control the system to supply power or generate a control strategy according to the electrical signal; wherein the control strategy is used for controlling the working parameters of the system.
As shown in fig. 2, the detecting unit 130 is configured to detect a first electrical signal formed by the detecting element 120 under the action of a first voltage provided by the power interface 110; the current direction is from the power interface, through the detecting element 120, and into the first circuit for system power supply.
The processing unit 140 is specifically configured to generate a control strategy according to the first electrical signal, where the control strategy is used to control an operating parameter of a system.
The processing unit 140 is specifically configured to generate the control policy when the first electrical signal indicates that the first voltage provided by the power interface 110 is smaller than a preset voltage value; wherein the control strategy is used to reduce system power consumption.
The control strategy can be used to control the system to reduce the operating frequency, and/or to reduce the operating current, and/or to shut down the system to run one or more applications.
Generally, if the operating frequency of the system is higher, the power consumption of the system is higher, and in this embodiment, the control strategy may be a frequency adjustment strategy, which can control the system to reduce the operating frequency, and reduce the power consumption by reducing the operating frequency of the system.
The power consumption of the system is the product of the working voltage and the working current of the system, and when the power provided by the power supply equipment is limited, the working current of the system is reduced, so that the power consumption of the system can be obviously reduced. Therefore, the control strategy described in this embodiment may be a current regulation strategy.
The system may simultaneously start a plurality of applications when operating, and maintain the operating states of the applications, all consuming a certain power consumption, and in this embodiment, the control policy may be an application state adjustment policy, and may be used to close one or more running applications.
The application state adjustment policy may also be used to indicate applications that are closed, and when determining which applications to select to close, applications that are less frequently operated by the user may be preferentially selected. The electronic equipment stores priority information which can be used for dividing the application of the electronic equipment into two or more than two priorities, and when the application is selected to be closed, the application with the lower priority is preferentially selected to be closed. The setting of the priority information can be generated based on a user instruction; the electronic device can also be set by itself according to whether the function provided by the application is a basic function or an optimization function. In general, there are many ways to set the priority, and this is not repeated here.
Fig. 3 is a diagram of voltage, current and power. The horizontal axis in fig. 3 represents the current, corresponding to the operating current of the system in the present embodiment; the voltage represented by the left vertical axis corresponds to the operating voltage of the system and the first voltage provided by the power interface 110 in this embodiment; the right vertical axis represents power, corresponding to the power of the system and the power supplied by the power supply device in this embodiment.
As can be seen from fig. 3, the maximum power that can be provided by the power supply device is 16V, the rated operating voltage of the system is 5V, and the shutdown operating voltage is less than 4.7V. Obviously, before the operating voltage (i.e. the first voltage) of the system is less than 5V, the larger the operating current of the system is, the larger the power consumption of the system is; if the operating current of the system continues to increase, the maximum power consumption that can be provided by the power supply device is 16W, which will cause the first voltage to drop, and may cause the operating voltage of the system to drop below 4.7V. By using the information processing method described in this embodiment, the detection unit 130 can detect the first electrical signal on the detection element 120 to generate a control strategy, so as to reduce the power consumption of the system and avoid the automatic shutdown of the system caused by the operating voltage of the system dropping below 4.7V.
In short, the processing unit 140 according to this embodiment can reduce the system power consumption conveniently and effectively by generating the control policy.
Example five:
as shown in fig. 1, the present embodiment provides a charging circuit, including:
a power interface 110 that can be used to connect with a power supply device;
a detecting element 120 including a first end and a second end; wherein the first terminal is connected to the power interface 110, and the second terminal is connected to a first circuit; the first circuit is used for the power interface 110 to perform system power supply through the detection element 120;
a detecting unit 130, connected to the detecting element 120, for detecting an electrical signal applied to the detecting element 120;
the processing unit 140 is connected to the detecting unit 130, and is configured to control the system to supply power or generate a control strategy according to the electrical signal; wherein the control strategy is used for controlling the working parameters of the system.
A built-in power supply 150 connected to the detecting element 120 and the power interface 110 to form a second circuit, for providing a second voltage to the second circuit before the power interface 110 provides the system power;
the detecting unit 130 is further configured to detect a second electrical signal formed on the detecting element 120 under the action of the second voltage;
the processing unit 140 is further configured to output a power supply prompt or determine whether to supply power to the system according to the second electrical signal.
The internal power source in this embodiment may be a battery disposed in the electronic device, where the battery may be a rechargeable battery or a disposable battery such as a dry battery.
Before the power interface 110 provides the system power, in order to prevent the power interface 110 from short circuit, the problem that the electronic device is damaged by charging the power interface is still solved. In this embodiment, the detecting element 120 and the power interface 110 are powered by the built-in power source 150. If the power interface 110 has a short circuit phenomenon such as lap joint between pins, a large current will appear on the detecting element 120, and if the power interface 110 has no abnormality, a circuit formed by the built-in power supply 150, the detecting element 120 and the power interface 110 is in an open circuit state, the current on the detecting element 120 will be very small, and the voltage difference between two ends of the detecting element 120 will be infinitesimal. In this embodiment, the detecting unit 130 detects a second electrical signal formed by the detecting element 120 under the action of a second voltage provided by the built-in power source 150 by using the characteristic, and transmits the second electrical signal to the processing unit 140. The processing unit 140 determines whether the power interface 110 is normal according to the second electrical signal.
In this embodiment, the processing unit 140 may be configured to output a power supply prompt or control power supply of the system according to the second electrical signal. The power supply prompt may prompt the power interface 110 to be abnormal, so that the user can know that the current power interface is abnormal, disconnect the power interface 110 from the power supply device, and avoid the abnormality caused by the abnormal continuous power supply of the electronic device due to the abnormal power interface. The power supply prompt can be a displayed text prompt, and can also be an abnormal light prompt or an alarm sound prompt.
Of course, in this embodiment, the processing unit may also be configured to directly control the system to supply power according to the second electrical signal. For example, a controlled switch is disposed between the power interface and the first circuit, and when the processing unit 140 determines that the power interface 110 is abnormal, the controlled switch is directly controlled to be in an off state, which obviously can reject the system power supply of the power interface 110, thereby protecting the electronic device.
In short, the charging circuit described in this embodiment may also be used to automatically detect whether the power interface 110 is abnormal, so as to better protect the electronic device and prolong the life of the electronic device. It is worth noting that: the electronic device provided in this embodiment is further improved on the basis of the electronic device provided in any of the foregoing embodiments, and in this embodiment, the processing unit 140 may further be configured to generate a control policy according to the first electrical signal when the system is powered on, so as to control the operating parameters of the system, thereby avoiding problems such as automatic shutdown of the system due to abnormal power supply.
As a further improvement of this embodiment, the processing unit 140 is specifically configured to output an abnormal power supply prompt for stopping power supply of the power interface when the second electrical signal indicates that the current of the second circuit is greater than a preset current value. Certainly, the power supply prompt may include a normal power supply prompt and an abnormal power supply prompt, and in this embodiment, when the second electrical signal indicates that the current of the second circuit is greater than the preset current value, the abnormal power supply prompt is output, so that when the user sees the abnormal power supply prompt, the user knows that the power interface cannot be used for charging at present, otherwise, the user may get the fault of the child electronic device, and the electronic device is protected better.
Example six:
as shown in fig. 1, the present embodiment provides a charging circuit, including:
a power interface 110 that can be used to connect with a power supply device;
a detecting element 120 including a first end and a second end; wherein the first terminal is connected to the power interface 110, and the second terminal is connected to a first circuit; the first circuit is used for the power interface 110 to perform system power supply through the detection element 120;
a detecting unit 130, connected to the detecting element 120, for detecting an electrical signal applied to the detecting element 120;
the processing unit 140 is connected to the detecting unit 130, and is configured to control the system to supply power or generate a control strategy according to the electrical signal; wherein the control strategy is used for controlling the working parameters of the system.
As shown in fig. 4, the circuit further includes:
a built-in power supply 150 connected to the detecting element 120 and the power interface 110 to form a second circuit, for providing a second voltage to the second circuit before the power interface 110 provides the system power; the dashed arrows in fig. 4 indicate the current direction.
The detecting unit 130 is further configured to detect a second electrical signal formed on the detecting element 120 under the action of the second voltage;
the processing unit 140 is further configured to output a power supply prompt or determine whether to supply power to the system according to the second electrical signal.
As shown in fig. 4, the charging circuit further includes:
an impedance element 160 having one end connected to the detecting element 120 and the other end grounded;
the detecting element 130 is configured to, before the system power supply is performed, turn on the connection between the impedance element 160 and the detecting element 120, and disconnect the first circuit; wherein, the second voltage is also applied to a circuit formed by connecting the detecting element 120 and the impedance element 130;
the processing unit 140 is specifically configured to disconnect the first circuit when the second electrical signal indicates that the power interface 110 is abnormal; and when the second electric signal indicates that the power interface is normal, the first circuit is conducted.
In the present embodiment, the charging circuit further introduces an impedance element 160, one end of the impedance element 160 is grounded, and if an abnormality such as a short circuit occurs in the power interface 110, most of the current on the detecting element 120 flows through the circuit where the power interface 110 is located, which results in a larger circuit on the detecting element 120. If the power interface 110 is normal, the current formed by the second voltage will enter the ground point or the ground layer of the electronic device through the impedance element 160.
In this embodiment, the processing unit 140 is specifically configured to determine that the power interface 110 is abnormal according to the second electrical signal, and disconnect the first circuit or maintain disconnection of the first circuit; the power interface 110 normally turns on the first circuit.
In general, the resistance element 160 may be a resistor having a resistance value greater than a predetermined resistance value. In a specific implementation process, a controlled switch may be disposed between the impedance element 160 and the detecting element 120, and the processing unit 140 is further configured to turn on the detecting element 120 and the impedance element 160 when detecting the power interface 110, and turn off the impedance element 160 and the detecting element 120 when supplying power to the system, so as to reduce power consumption consumed by the impedance element 160 when supplying power to the system, and reduce overall power consumption of the electronic device.
Example seven:
the present embodiment provides an electronic device, which includes a charging circuit provided in any one of the first to seventh technical solutions of the embodiment.
The electronic device provided by the embodiment can include various electronic devices such as a desktop computer, a notebook computer, a tablet computer, and the like. The charging circuit may be configured to provide power consumption to the electronic device. By using the power interfaces mentioned in the first embodiment to the first embodiment, on one hand, the abnormality such as automatic shutdown of the electronic device caused by the abnormality of the working voltage provided by the power interface can be reduced, on the other hand, the problem of damage to the electronic device caused by the abnormality of the power interface can also be reduced, and the service life of the electronic device is prolonged.
Example eight:
as illustrated in fig. 5, the present embodiment provides an information processing method, including:
step S110: detecting an electric signal of the detection element;
step S120: according to the electric signal, a power supply interface is controlled to supply power to the system or generate a control strategy through the system provided by the detection element; wherein the control strategy is used for controlling the working parameters of the system.
The embodiment provides an information processing method which can be used in the charging process of electronic equipment. The step S110 is to detect the electrical signal of the detecting element. The detecting element can be the detecting element described in any of the above embodiments. The electrical signal may be a current signal or a voltage signal, which can be used to indicate whether the voltage currently applied to the detection element is normal or whether the circuit in which the detection element is located is normal.
In step S120, a power interface is controlled to supply power to the system through the detection element or generate a control strategy to control a working parameter of the system according to the electrical signal. Obviously, the information processing method of the embodiment can simply and conveniently control the system power supply according to the electric signal of the detection element, and reduce the abnormality of the electronic equipment caused by the abnormal system power supply or the overhigh system power consumption.
Example nine:
as illustrated in fig. 5, the present embodiment provides an information processing method, including:
step S110: detecting an electric signal of the detection element;
step S120: according to the electric signal, a power supply interface is controlled to supply power to the system or generate a control strategy through the system provided by the detection element; wherein the control strategy is used for controlling the working parameters of the system.
The step S110 may include: detecting a first electric signal formed by a first voltage provided by the power interface acting on a detection element; the generating of the control strategy according to the electric signal in the step S120 may include: and generating a control strategy according to the first electric signal, wherein the control strategy is used for controlling the working parameters of the system. In this embodiment, the electrical signal of the detecting element is formed by the first voltage provided by the power interface. In this embodiment, the step S110 detects a first electrical signal, and in the step S120, a control strategy is generated according to the first electrical signal, where the control strategy is mainly used to control the operating parameters of the system; the control of the power consumption of the system is realized through the control of the working parameters of the system.
As a further improvement of this embodiment, the step S120 may specifically include: when the first electric signal indicates that the first voltage provided by the power interface is smaller than a preset voltage value, generating the control strategy; wherein the control strategy is used to reduce system power consumption. By adopting the information processing method of the embodiment, the phenomenon that the system is automatically closed due to the fact that the working voltage input by the power interface is too small when the power consumption of the electronic equipment is too large and the power consumption of the power supply equipment connected with the power interface is constant can be reduced.
Example ten:
as illustrated in fig. 5, the present embodiment provides an information processing method, including:
step S110: detecting an electric signal of the detection element;
step S120: according to the electric signal, a power supply interface is controlled to supply power to the system or generate a control strategy through the system provided by the detection element; wherein the control strategy is used for controlling the working parameters of the system.
The step S110 may include: detecting a first electric signal formed by a first voltage provided by the power interface acting on a detection element; the generating of the control strategy according to the electric signal in the step S120 may include: and generating a control strategy according to the first electric signal, wherein the control strategy is used for controlling the working parameters of the system.
The step S120 may specifically include: when the first electric signal indicates that the first voltage provided by the power interface is smaller than a preset voltage value, generating the control strategy; wherein the control strategy is used to reduce system power consumption.
The method further comprises at least one of:
according to the control strategy, reducing the working frequency of the system;
reducing the working current according to the control strategy;
and closing one or more running applications according to the control strategy.
The control strategy in this embodiment may be used to reduce system power consumption, and there are various ways to reduce system power consumption in this embodiment, which are several optional implementation ways:
the first alternative is as follows:
the control strategy can be a frequency adjustment strategy and can be used for adjusting the working frequency of the system; therefore, the method in the first alternative may further include: and reducing the working frequency of the system according to the control strategy. The system herein may comprise at least the operating system of the electronic device, which obviously may enable a reduction of the power consumption of the system.
The second option is:
the control strategy may be a current regulation strategy that can be used to regulate the operating circuitry of the system, and the method in the first alternative may further comprise: the working current of the system is reduced according to the control strategy, the working current given by the system is reduced, the power consumption of the system is obviously reduced under the condition that the working voltage of the system is not changed, the working voltage of the system is obviously improved under the condition that the power consumption of the system is not changed, and the automatic shutdown phenomenon of the system caused by the fact that the working voltage is smaller can be simply and conveniently avoided.
The optional mode three:
the control policy may be an application state adjustment policy, which can be used to adjust the state of the application in the system, so the method in the third option may further include: and closing one or more running applications, and reducing the power consumption of the system, thereby avoiding the further reduction of the working voltage input by the power interface.
In short, the information processing method according to this embodiment further executes one or more of the first to third optional modes according to the control policy, so as to reduce system power consumption and reduce system faults caused by excessive system power consumption due to limited power consumption provided by the power interface.
Example eleven:
as illustrated in fig. 5, the present embodiment provides an information processing method, including:
step S110: detecting an electric signal of the detection element;
step S120: according to the electric signal, a power supply interface is controlled to supply power to the system or generate a control strategy through the system provided by the detection element; wherein the control strategy is used for controlling the working parameters of the system.
The step S110 may include: detecting a first electric signal formed by a first voltage provided by the power interface acting on a detection element; the generating of the control strategy according to the electric signal in the step S120 may include: and generating a control strategy according to the first electric signal, wherein the control strategy is used for controlling the working parameters of the system.
The method further comprises the following steps:
before the system is powered, a built-in power supply of the electronic equipment is utilized to provide a second voltage for a second circuit comprising the detection element and the power interface;
the step S110 may include: detecting a second electric signal formed on the detection element under the action of the second voltage;
the step S120 may include: and outputting a power supply prompt or determining whether to supply power to the system according to the second electric signal.
In this embodiment, before the system described in any of the foregoing embodiments supplies power, a built-in power supply in the electronic device is used to provide a second voltage to the second circuit, such a detection element will form a corresponding electrical signal under the action of the second voltage, if a short-circuit phenomenon such as a lap joint occurs before a pin occurs in the current power interface, the second circuit may be turned on, a larger circuit may be detected on the detection element, and a corresponding power supply abnormality prompt is output or it is determined that the system is not powered according to the second electrical signal in step S120, so as to avoid damage to the electronic device due to an abnormal power interface. Of course, when the second point signal indicates that the current on the detecting element is small, a normal power supply prompt is output or the system power supply is determined.
Obviously, the information processing method described in this embodiment may also be used to detect whether the power interface is normal, so as to reduce the abnormality of the electronic device caused by charging.
It is worth noting that: the embodiment is a further improvement on the basis of any one of the above embodiments, and can be mutually combined to form a new technical scheme under the condition of no conflict.
Example twelve:
as illustrated in fig. 5, the present embodiment provides an information processing method, including:
step S110: detecting an electric signal of the detection element;
step S120: according to the electric signal, a power supply interface is controlled to supply power to the system or generate a control strategy through the system provided by the detection element; wherein the control strategy is used for controlling the working parameters of the system.
The step S110 may include: detecting a first electric signal formed by a first voltage provided by the power interface acting on a detection element; the generating of the control strategy according to the electric signal in the step S120 may include: and generating a control strategy according to the first electric signal, wherein the control strategy is used for controlling the working parameters of the system.
The method further comprises the following steps:
before the system is powered, a built-in power supply of the electronic equipment is utilized to provide a second voltage for a second circuit comprising the detection element and the power interface;
the step S110 may include: detecting a second electric signal formed on the detection element under the action of the second voltage;
the step S120 may include: and outputting a power supply prompt or determining whether to supply power to the system according to the second electric signal.
The outputting of the power supply prompt in step S120 includes: and outputting an abnormal power supply prompt for stopping the power supply of the power interface when the second electric signal indicates that the current of the second circuit is greater than a preset current value.
When the power supply prompt is output in the embodiment, a light prompt, an alarm sound prompt or a text image prompt can be adopted, in short, various prompt modes can be adopted to provide power supply abnormity; the problems of electronic equipment failure and the like caused by abnormal continuous charging of the power interface are reduced.
Two specific examples are provided below in connection with the above embodiments:
example one:
as shown in fig. 6, the present example provides a charging circuit including:
Type-C interface, is one kind of power source 110.
R1, connected to the Type-C and system power supply circuits, corresponds to the detecting element 120 described above.
Charging an IC, wherein the IC is an abbreviation of integrated circuit, and Chinese is an integrated circuit; corresponding to the detection unit 130 described above.
EC, connected to IC via a serial bus, corresponds to the aforementioned processing unit 140.
When the Type-C interface is used for charging, the charging IC detects the current on the R1 and transmits the detected current to the EC, and the EC determines the current power consumption of the system according to the detected current; comparing the current power consumption with the highest power consumption written in advance; if the current power consumption is the highest power consumption of the system, or the difference value between the current power consumption and the highest power consumption of the system is smaller than a preset difference value threshold value, the system is controlled to reduce the working frequency, or one or more applications are closed, or the working current of the system is directly adjusted downwards.
Example two:
as shown in fig. 7, the present example provides a charging circuit including:
a Type-C interface, which is one of the power source interfaces 110.
A DC-in interface, which is another power interface 110.
R1, connected to the power interface 110 and the system power supply circuit, corresponds to the detecting element 120.
One end of R2 is connected with R1, and the other end is grounded; typically a relatively high resistance.
Charging an IC, wherein the IC is an abbreviation of integrated circuit, and Chinese is an integrated circuit; corresponding to the detection unit 130 described above.
Also in fig. 7 are not shown power supplies and a controller or processor etc. The power supply may correspond to the aforementioned built-in power supply; the processor or controller may correspond to the aforementioned processing unit, e.g., EC.
Before system power supply is carried out, the EC controls the conduction of R1 and R2, and the built-in power supply supplies power to the directions of an R2\ Type-C interface and a DC-in interface from R1 respectively. The charging IC detects the current on R1. And the EC determines whether the Type-C interface and the DC-in interface have short circuit according to the current value of the current on the R1.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (14)
1. A charging circuit, comprising:
a power interface capable of being connected with a power supply device;
a detecting element including a first end and a second end; wherein the first terminal is connected to the power interface and the second terminal is connected to a first circuit; the first circuit is used for the power interface to supply power to the system through the detection element;
one end of the impedance element is connected with the detection element, and the other end of the impedance element is grounded;
the detection element is further used for conducting the connection between the impedance element and the detection element and disconnecting the first circuit before the system is powered;
the detection unit is connected with the detection element and is used for detecting the electric signal acting on the detection element;
the processing unit is connected with the detection unit and used for determining whether to supply power to the system and generating a control strategy according to the electric signal; wherein the control strategy is used for controlling the working parameters of the system.
2. The charging circuit of claim 1,
the detection unit is specifically configured to detect a first electrical signal formed by the detection element under the action of a first voltage provided by the power interface;
the processing unit is specifically configured to generate a control strategy according to the first electrical signal, where the control strategy is used to control a working parameter of a system.
3. The charging circuit of claim 2,
the processing unit is specifically configured to generate the control policy when the first electrical signal indicates that a first voltage provided by the power interface is smaller than a preset voltage value; wherein the control strategy is used to reduce system power consumption.
4. The charging circuit of claim 3,
the control strategy can be used for controlling a system to reduce the working frequency, and/or reduce the working current of the system, and/or close the system to run one or more applications.
5. The charging circuit of claim 1,
the charging circuit further includes:
the built-in power supply is connected with the detection element and the power interface to form a second circuit and is used for providing a second voltage for the second circuit before the power interface provides the system power supply;
the detection unit is also used for detecting a second electric signal formed on the detection element under the action of the second voltage;
and the processing unit is also used for outputting a power supply prompt or determining whether to supply power to the system according to the second electric signal.
6. The charging circuit of claim 5,
the processing unit is specifically configured to output an abnormal power supply prompt for stopping power supply of the power interface when the second electrical signal indicates that the current of the second circuit is greater than a preset current value.
7. The charging circuit of claim 5,
the second voltage is also applied to a circuit formed by connecting the detection element and the impedance element;
the charging circuit further includes:
the processing unit is specifically configured to disconnect the first circuit when the second electrical signal indicates that the power interface is abnormal; and when the second electric signal indicates that the power interface is normal, the first circuit is conducted.
8. An electronic device characterized by comprising the charging circuit of any one of claims 1 to 7.
9. An information processing method applied to the charging circuit according to any one of claims 1 to 7, the method comprising:
detecting an electric signal of the detection element;
controlling a power interface to generate a control strategy through the detection element according to the electric signal; wherein the control strategy is used for controlling the working parameters of the system;
the detecting of the electrical signal of the detecting element includes: detecting a second electric signal formed on the detection element under the action of a second voltage; the second voltage is applied to a circuit formed by connecting the detection element and the impedance element;
determining whether to perform the system power supply based on the second electrical signal before performing the system power supply.
10. The method of claim 9,
the detecting of the electrical signal of the detecting element includes:
detecting a first electric signal formed by a first voltage provided by the power interface acting on a detection element;
generating a control strategy according to the electric signal, comprising:
and generating a control strategy according to the first electric signal, wherein the control strategy is used for controlling the working parameters of the system.
11. The method of claim 10,
the generating a control strategy from the first electrical signal includes:
when the first electric signal indicates that the first voltage provided by the power interface is smaller than a preset voltage value, generating the control strategy; wherein the control strategy is used to reduce system power consumption.
12. The method of claim 11,
the method further comprises at least one of:
according to the control strategy, reducing the working frequency of the system;
reducing the working current according to the control strategy;
and closing one or more running applications according to the control strategy.
13. The method of claim 9,
the method further comprises the following steps:
before the system is powered, a built-in power supply of the electronic equipment is utilized to provide a second voltage for a second circuit comprising the detection element and the power interface;
the controlling the power interface to supply power to the system provided by the detecting element according to the electric signal includes:
and outputting a power supply prompt or determining whether to supply power to the system according to the second electric signal.
14. The method of claim 13,
the outputting a power supply prompt according to the second electrical signal includes:
and outputting an abnormal power supply prompt for stopping the power supply of the power interface when the second electric signal indicates that the current of the second circuit is greater than a preset current value.
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| CN106940586A (en) * | 2017-01-23 | 2017-07-11 | 宇龙计算机通信科技(深圳)有限公司 | A kind of power control method, device and system |
| CN110247368A (en) * | 2018-03-09 | 2019-09-17 | 陈晓萍 | Protect circuit |
| CN111007321A (en) * | 2019-12-16 | 2020-04-14 | 上海爻火微电子有限公司 | Processing circuit of power output end, electronic equipment and earth impedance detection method |
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| CN1758063A (en) * | 2004-09-23 | 2006-04-12 | Lg电子株式会社 | Apparatus and method for detecting a short of a battery connector |
| CN105429213A (en) * | 2015-11-30 | 2016-03-23 | 深圳市沃特沃德股份有限公司 | Mobile terminal, system and method for adjusting charging current of mobile terminal |
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| CN1758063A (en) * | 2004-09-23 | 2006-04-12 | Lg电子株式会社 | Apparatus and method for detecting a short of a battery connector |
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