CN111433619B - Adapter aging detection method and device for equipment to be charged - Google Patents
Adapter aging detection method and device for equipment to be charged Download PDFInfo
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- CN111433619B CN111433619B CN201880078146.4A CN201880078146A CN111433619B CN 111433619 B CN111433619 B CN 111433619B CN 201880078146 A CN201880078146 A CN 201880078146A CN 111433619 B CN111433619 B CN 111433619B
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Abstract
An adapter aging detection method and device are provided, and the method comprises the following steps: acquiring a charging curve of a device to be charged in a preset state (S101); generating an output curve of the adapter according to the charging curve (S102); controlling the adapter to output according to the output curve, and detecting the temperature of the adapter (S103); and judging whether the adapter is qualified in aging or not according to the temperature of the adapter (S104), so that the aging effect of the adapter can be met, the working condition of the adapter during working can be detected, and the reliability of the adapter is ensured.
Description
Technical Field
The present application relates to the field of adapter technologies, and in particular, to a method and an apparatus for detecting adapter aging of a device to be charged.
Background
In order to detect whether the adapter of the device to be charged is qualified, the adapter needs to be subjected to aging detection. In the related art, the adapter is usually subjected to a high temperature of 40 degrees for several hours of full-load aging. However, the related art has a problem that when the adapter is subjected to the heat treatment for reducing the cost or the like, the operating time of the adapter when the adapter is fully loaded is short, and in this case, if the aging test is performed at a full load high temperature for a long time, the operating condition of the adapter is easily exceeded, and the aging test of the adapter fails or even damages the adapter.
Disclosure of Invention
The present application aims to solve at least to some extent one of the technical problems in the above-mentioned technology. To this end, an object of the present application is to provide an adapter degradation detection method for a device to be charged.
A second object of the present application is to propose an adapter for a device to be charged.
A third objective of the present application is to provide an adapter aging detection apparatus for a device to be charged.
A fourth object of the present application is to propose a non-transitory computer-readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present application provides a method for detecting adapter aging of a device to be charged, including the following steps: acquiring a charging curve of equipment to be charged in a preset state; generating an output curve of the adapter according to the charging curve; controlling the adapter to output according to the output curve, and detecting the temperature of the adapter; and judging whether the adapter is qualified after aging according to the temperature of the adapter.
According to the adapter aging detection method of the device to be charged, the charging curve of the device to be charged in the preset state is obtained, the output curve of the adapter is generated according to the charging curve, the adapter is controlled to output according to the output curve, the temperature of the adapter is detected, and whether the adapter is qualified in aging or not is judged according to the temperature of the adapter. Therefore, the detection method of the embodiment of the application controls the adapter to output according to the output curve, so that the aging effect of the adapter can be met, the working condition of the adapter during working can be detected, and the reliability of the adapter is ensured.
In order to achieve the above object, a second aspect of the present application provides an adapter of a device to be charged, which is suitable for the foregoing aging detection method, and the adapter further includes: a first rectifying unit rectifying an input alternating current to output a voltage of a first ripple waveform; a switching unit for modulating a voltage of the first ripple waveform according to a control signal; a transformer for outputting a voltage of a second ripple waveform according to the modulated voltage of the first ripple waveform; a second rectifying unit for rectifying the voltage of the second ripple waveform to output a voltage of a third ripple waveform; the first charging interface is connected with the second rectifying unit; the sampling unit is used for sampling the voltage and/or the current output by the second rectifying unit to obtain a voltage sampling value and/or a current sampling value; and the control unit is respectively connected with the sampling unit and the switch unit, outputs the control signal to the switch unit, and adjusts the duty ratio of the control signal according to the voltage sampling value and/or the current sampling value so as to enable the voltage of the third pulse waveform to meet the charging requirement.
In order to achieve the above object, an embodiment of a third aspect of the present application provides an adapter aging detection apparatus for a device to be charged, including an obtaining module, configured to obtain a charging curve of the device to be charged in a preset state; the generating module is used for generating an output curve of the adapter according to the charging curve; and the detection module is used for controlling the adapter to output according to the output curve, detecting the temperature of the adapter and judging whether the adapter is qualified in aging or not according to the temperature of the adapter.
According to the adapter aging detection device of the equipment to be charged, the charging curve of the equipment to be charged in the preset state is obtained through the obtaining module, then the generating module generates the output curve of the adapter according to the curve, the detecting module controls the adapter to output according to the output curve, the temperature of the adapter is detected, and whether the adapter is qualified in aging or not is judged according to the temperature of the adapter. Therefore, the detection device of the embodiment of the application controls the adapter to output according to the output curve, so that the aging effect of the adapter can be met, the working condition of the adapter during working can be detected, and the reliability of the adapter is ensured.
In order to achieve the above object, a fourth aspect of the present application provides a non-transitory computer-readable storage medium, where the program is executed by a processor to implement the adapter aging detection method for a device to be charged.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
the above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, of which,
fig. 1 is a flowchart of an adapter aging detection method of a device to be charged according to an embodiment of the present application;
FIG. 2 is a block schematic diagram of a charging system for a terminal according to one embodiment of the present application;
fig. 3 is a block diagram illustrating an adapter degradation detection apparatus of a device to be charged according to an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
It should be noted that the adapter proposed in the present application is suitable for charging a device to be charged. In the embodiment of the application, the adapter can output the voltage/current with the pulsating waveform to charge the equipment to be charged. Compared with the traditional constant voltage and constant current, the periodic change of the voltage/current of the pulse waveform can reduce the lithium separation phenomenon of the lithium battery, prolong the service life of the battery, reduce the arc discharge probability and strength of the contact of the charging interface, prolong the service life of the charging interface, facilitate the reduction of the polarization effect of the battery, improve the charging speed, reduce the heat generation of the battery and ensure the safety and reliability during charging. In addition, because the adapter outputs the voltage with the pulsating waveform, an electrolytic capacitor does not need to be arranged in the adapter, the simplification and the miniaturization of the adapter can be realized, and the cost can be greatly reduced.
As shown in fig. 2, in one embodiment, the adapter 1 comprises: the circuit comprises a first rectifying unit 101, a switching unit 102, a transformer 103, a second rectifying unit 104, a first charging interface 105, a sampling unit 106 and a control unit 107.
The first rectifying unit 101 rectifies an input alternating current (commercial power, for example, AC 220V) to output a voltage of a first ripple waveform, for example, a steamed bun-wave voltage, wherein the first rectifying unit 101 may be a full-bridge rectifying circuit configured by four diodes.
The switch unit 102 is configured to modulate the voltage of the first Pulse waveform according to the control signal, wherein the switch unit 102 may be formed by a MOS transistor, and performs a PWM (Pulse Width Modulation) control on the MOS transistor to perform a chopper Modulation on the steamed bun wave voltage.
The transformer 103 is configured to output a voltage of a second ripple waveform according to the modulated voltage of the first ripple waveform.
The second rectifying unit 104 is configured to rectify the voltage of the second ripple waveform to output a voltage of a third ripple waveform. In one embodiment, the second rectifying unit 104 may be composed of a diode or a MOS transistor, and is capable of implementing secondary synchronous rectification, so that the third ripple waveform is synchronized with the modulated first ripple waveform, it should be noted that the third ripple waveform is synchronized with the modulated first ripple waveform. Specifically, the phase of the third ripple waveform is consistent with the phase of the modulated first ripple waveform. The amplitude of the third pulse waveform is consistent with the amplitude variation trend of the modulated first pulse waveform.
The first charging interface 105 is connected to the second rectifying unit 104, and is configured to output a voltage with a third ripple waveform to charge the device to be charged 2.
The sampling unit 106 is configured to sample the voltage and/or the current output by the second rectifying unit 104 to obtain a voltage sampling value and/or a current sampling value, the control unit 107 is connected to the sampling unit 106 and the switching unit 102, respectively, and the control unit 107 outputs a control signal to the switching unit 102 and adjusts a duty ratio of the control signal according to the voltage sampling value and/or the current sampling value, so that the voltage of the third ripple waveform output by the second rectifying unit 104 meets the charging requirement.
As shown in fig. 2, in one embodiment, the device to be charged 2 includes: the second charging interface 201 is connected with the battery 202, wherein when the second charging interface 201 is connected with the first charging interface 105, the second charging interface 201 loads the voltage of the third ripple waveform to the battery 202, so that the battery 202 is charged. In an embodiment of the present application, the adapter 1 further comprises a driving unit, for example a MOSFET driver, connected between the switching unit 102 and the control unit 107, the driving unit being configured to drive the switching unit 102 on or off according to a control signal. Of course, it should be noted that in other embodiments of the present application, the driving unit may also be integrated in the control unit 107.
In an embodiment of the present application, the adapter 1 further includes an auxiliary winding and a power supply unit, the auxiliary winding generates a voltage of a fourth ripple waveform according to the modulated voltage of the first ripple waveform, the power supply unit is connected to the auxiliary winding, and the power supply unit (for example, including a filtering and voltage stabilizing module, a voltage conversion module, and the like) is configured to convert the voltage of the fourth ripple waveform to output a direct current to respectively supply power to the driving unit and/or the control unit 107. The power supply unit can be composed of devices such as a small filtering capacitor and a voltage stabilizing chip, and is used for processing and converting the voltage of the fourth pulse waveform and outputting low-voltage direct current of 3.3V or 5V.
That is, when the power supply of the driving unit is converted from the voltage of the power supply unit to the fourth ripple waveform, and the control unit 107 is provided on the primary side, the power supply thereof may also be converted from the voltage of the power supply unit to the fourth ripple waveform. When the control unit 107 is arranged on the primary side, the power supply unit provides two paths of direct current outputs to respectively supply power to the driving unit and the control unit 107, and an optical coupling isolation unit is arranged between the control unit 107 and the sampling unit 106 to realize signal isolation between the primary side and the secondary side of the adapter 1.
When the control unit 107 is provided on the primary side and the driving unit is integrated, the power supply unit supplies power to the control unit 107 alone. When the control unit 107 is provided on the secondary side and the driving unit is provided on the primary side, the power supply unit alone supplies power to the driving unit, and the power supply of the control unit 107 is supplied from the secondary side to the control unit 107 by, for example, converting the voltage of the third ripple waveform output from the second rectifying unit 104 into a direct-current power supply by one power supply unit.
In another embodiment of the present application, the adapter 1 further includes a first voltage detection unit, the first voltage detection unit is respectively connected to the auxiliary winding and the control unit 107, the first voltage detection unit is configured to detect a voltage of the fourth pulsating waveform to generate a voltage detection value, wherein the control unit 107 is further configured to adjust a duty ratio of the control signal according to the voltage detection value.
That is, the control unit 107 may reflect the voltage output by the second rectifying unit 104 according to the voltage output by the auxiliary winding detected by the first voltage detecting unit, and then adjust the duty ratio of the control signal according to the voltage detection value so that the output of the second rectifying unit 104 matches the charging requirement of the battery.
In the embodiment of the present disclosure, the adapter 1 may also perform bidirectional communication with the device to be charged through the charging interface, and interact with information (e.g., battery voltage information, battery temperature information, etc.) of the terminal.
In the embodiments of the present disclosure, the device to be charged may refer to a terminal, and the "terminal" may include, but is not limited to, a smart phone, a computer, a Personal Digital Assistant (PDA), a smart wearable device, a game device, a camera device, and the like. The adapter can also be a vehicle-mounted adapter, a charger and other equipment with the function of charging the terminal.
It should be understood that the adapter in the present application may also be a quick-fill adapter or a generic adapter.
Based on the adapter of the device to be charged, the application provides an adapter aging detection method and an adapter aging detection device of the device to be charged.
The adapter degradation detection method and the adapter degradation detection apparatus according to the embodiments of the present application are described below with reference to the drawings.
FIG. 1 is a flowchart of an adapter degradation detection method according to an embodiment of the present application. As shown in fig. 1, the adapter aging detection method according to the embodiment of the present application includes the following steps:
s101: and acquiring a charging curve of the equipment to be charged in a preset state.
The preset state can be a state from zero charge to 100% of the electric quantity of the equipment to be charged.
It should be understood that, after the device to be charged matched with the adapter is determined, the device to be charged is charged according to the preset state, so as to obtain a charging curve of the device to be charged in the preset state, that is, a relation curve of the charging capacity of the device to be charged and time.
S102: and generating an output curve of the adapter according to the charging curve.
Wherein the output profile includes a plurality of load conditions and a duration for each load condition.
It is also noted that the load condition may be a load percentage, such as 100% load (i.e., full), 80% load, etc. The load percentage corresponds to the electric quantity of the device to be charged, for example, when the electric quantity of the device to be charged is 0%, the corresponding load state is 100% load, when the electric quantity of the device to be charged is 20%, the corresponding load state is 80%, and when the electric quantity of the device to be charged is 100%, the corresponding load state is 0% load.
Wherein the duration of each load condition may be stepped from one percentage to the next percentage of duration depending on the charge capacity of the device to be charged.
Therefore, the output curve can be full load aging for 15 minutes, 80% load aging for 30 minutes, 50% load aging for 30 minutes \8230, 8230, and preset time up to 0% load aging.
S103: and controlling the adapter to output according to the output curve, and detecting the temperature of the adapter.
It should be noted that the adapter may be controlled by the load simulator to output according to the output curve. The load simulator comprises a controller, a load simulation circuit and an interface connected with the adapter, wherein the controller is used for controlling the load simulation circuit according to a load curve to generate different load states, so that the simulation load circuit receives electric energy transmitted by the adapter according to the load states corresponding to the load curve through the interface connected with the adapter, and the purpose of simulating output of the adapter is achieved. Further, the load simulator may further include a display device to display the current load status in real time, so as to facilitate observation of the current load status and the duration of each load status.
S104: and judging whether the adapter is qualified after aging according to the temperature of the adapter.
That is to say, the device to be charged matched with the adapter is determined, then a charging curve of the device to be charged in a preset state is obtained, an output curve of the adapter is generated according to the charging curve, the adapter is controlled to output according to the output curve, namely, the output state of the adapter is controlled to be simulated as the charging state of the device to be charged, meanwhile, the temperature of the adapter is detected, and whether the adapter is qualified after aging is judged according to the temperature of the adapter.
According to one embodiment of the present application, the output curve may also be generated based on the temperature and/or age detection time of the adapter.
Therefore, the adapter is controlled to output according to the output curve, the dynamic adjustment of the output state of the adapter is realized, the production cost of the adapter can be saved on the premise of ensuring the aging effect of the adapter, and the adapter cannot generate excessive aging in the aging detection process when the cost is saved by reducing the heat treatment mode.
According to an embodiment of the present application, the determining whether the aging is qualified according to the temperature of the adapter specifically includes: after each load state runs for the corresponding duration, judging whether the temperature of the adapter is greater than a preset temperature threshold value; and if the temperature is larger than the preset temperature threshold, judging the aging.
The preset temperature threshold corresponding to each load state can be different.
It should be noted that the output curve may include N load states, where a preset temperature threshold corresponding to the ith load state is smaller than a preset temperature threshold corresponding to the (i + 1) th load state, where i is smaller than N. For example, taking 20% of the devices to be charged as one load state as an example, the 1 st load state of the output curve may be a full load state, the 2 nd load state of the output curve may be an 80% load state, and further, the first temperature threshold corresponding to the 1 st load state is smaller than the second temperature threshold corresponding to the 2 nd load state. The first temperature threshold may be 100 degrees, and the second temperature threshold may be 110 degrees.
For example, taking 15 minutes of full load aging and then 30 minutes of 800% load aging as an example, controlling the adapter to output in the 1 st load state and continue for a first preset time, for example, 15 minutes, then detecting the current temperature of the adapter, determining whether the current temperature of the adapter is greater than a first temperature threshold corresponding to the 1 st load state, if the current temperature of the adapter is greater than the first temperature threshold corresponding to the 1 st load state, determining that the adapter is not aged, marking as a defective product, if the current temperature of the adapter is less than or equal to the first temperature threshold corresponding to the 1 st load state, determining that the adapter is not aged, then controlling the adapter to output in the 2 nd load state and continue for a second preset time, for example, 30 minutes, then detecting the current temperature of the adapter, determining whether the current temperature of the adapter is greater than a second temperature threshold corresponding to the 2 nd load state, if the current temperature of the adapter is greater than the second temperature threshold corresponding to the 2 nd load state, determining that the adapter is not aged, marking as a defective product, and if the current temperature of the adapter is less than or equal to the second temperature threshold corresponding to the 2 nd load state, determining that the adapter is aged.
Therefore, whether the aging of the adapter is qualified or not is detected after the duration time of each load state, whether the adapter is qualified or not can be detected in time, and if the adapter is unqualified in quantity, the production of the adapter can be adjusted according to the unqualified node of the adapter, so that the yield of adapter production and manufacturing is improved.
In summary, according to the adapter aging detection method for the device to be charged in the embodiment of the application, the charging curve of the device to be charged in the preset state is obtained, the output curve of the adapter is generated according to the charging curve, the adapter is controlled to output according to the output curve, the temperature of the adapter is detected, and whether the adapter is qualified in aging is judged according to the temperature of the adapter. Therefore, the detection method of the embodiment of the application controls the adapter to output according to the output curve, so that the aging effect of the adapter can be met, the working condition of the adapter during working can be detected, and the reliability of the adapter is ensured.
Fig. 2 is a schematic block diagram of an adapter degradation detection apparatus of a device to be charged according to an embodiment of the present application. As shown in fig. 2, an adapter degradation detection apparatus 100 of a device to be charged according to an embodiment of the present application includes: an acquisition module 10, a generation module 20 and a detection module 30.
The acquiring module 10 is configured to acquire a charging curve of a device to be charged in a preset state; the generating module 20 is configured to generate an output curve of the adapter according to the charging curve; the detection module 30 controls the adapter to output according to the output curve, detects the temperature of the adapter, and judges whether the adapter is aged qualified or not according to the temperature of the adapter.
The preset state is a state from zero charging to 100% of the electric quantity of the equipment to be charged.
Wherein the output profile includes a plurality of load conditions and a duration for each load condition.
It should be understood that, after the device to be charged matched with the adapter is determined, the device to be charged is charged according to the preset state, so as to obtain a charging curve of the device to be charged in the preset state, that is, a relation curve of the charging capacity of the device to be charged and time.
It should be noted that the load state may be a load percentage, such as 100% load, 80% load, etc. The load percentage corresponds to the capacity of the device to be charged, for example, when the capacity of the device to be charged is 0%, the corresponding load status is 100% load, when the capacity of the device to be charged is 20%, the corresponding load status is 80%, and when the capacity of the device to be charged is 100%, the corresponding load status is 0% load.
Wherein the duration of each load condition may be stepped from one percentage to the next percentage of the duration according to the charge capacity of the device to be charged.
Therefore, the output curve can be full load aging for 15 minutes, 80% load aging for 30 minutes, 50% load aging for 30 minutes \8230, 8230and preset time till 0% load aging.
That is to say, the device to be charged matched with the adapter is determined, then a charging curve of the device to be charged in a preset state is obtained, an output curve of the adapter is generated according to the charging curve, the adapter is controlled to output according to the output curve, namely, the output state of the adapter is controlled to be simulated as the charging state of the device to be charged, meanwhile, the temperature of the adapter is detected, and whether the adapter is qualified after aging is judged according to the temperature of the adapter.
According to one embodiment of the present application, the output curve may also be generated based on the temperature and/or age detection time of the adapter.
Therefore, the adapter is controlled to output according to the output curve, the dynamic adjustment of the output state of the adapter is realized, the production cost of the adapter can be saved on the premise of ensuring the aging effect of the adapter, and the adapter cannot generate excessive aging in the aging detection process when the cost is saved by reducing the heat treatment mode.
According to an embodiment of the present application, the detection module 30 is further configured to determine whether the temperature of the adapter is greater than a preset temperature threshold after the operation of each load state for the corresponding duration, and if the temperature of the adapter is greater than the preset temperature threshold, determine aging.
The preset temperature threshold corresponding to each load state may be different.
It should be noted that the output curve may include N load states, where a preset temperature threshold corresponding to the ith load state is smaller than a preset temperature threshold corresponding to the (i + 1) th load state, where i is smaller than N. For example, taking 20% of the devices to be charged as one load state as an example, the 1 st load state of the output curve may be a full load state, the 2 nd load state of the output curve may be an 80% load state, and further, the first temperature threshold corresponding to the 1 st load state is smaller than the second temperature threshold corresponding to the 2 nd load state. The first temperature threshold may be 100 degrees, and the second temperature threshold may be 110 degrees.
For example, taking a full load aging of 15 minutes and then an 800% load aging of 30 minutes as an example, the detection module 30 applies a full load, i.e., a 1 st load state, to the adapter for a first preset time, e.g., 15 minutes, then detects the current temperature of the adapter, determines whether the current temperature of the adapter is greater than a first temperature threshold corresponding to the 1 st load state, determines that the adapter is not aged, i.e., is marked as a defective product, if the current temperature of the adapter is less than or equal to the first temperature threshold corresponding to the 1 st load state, determines that the adapter is not aged, then the detection module 30 continues to apply an 80% load, i.e., a 2 nd load state, to the adapter for a second preset time, e.g., 30 minutes, then detects the current temperature of the adapter, determines whether the current temperature of the adapter is greater than a second temperature threshold corresponding to the 2 nd load state, if the current temperature of the adapter is greater than the second temperature threshold corresponding to the 2 nd load state, determines that the adapter is not aged, i.e., is marked as a defective product, and if the current temperature of the adapter is less than or equal to the second temperature threshold corresponding to the 2 nd load state, then determines that the adapter is aged.
Therefore, whether the ageing of the adapter is qualified or not is detected after each load state, whether the adapter is qualified or not can be detected in time, and if the adapter is unqualified in quantity, the production of the adapter can be adjusted according to the unqualified node of the adapter, so that the yield of adapter production and manufacturing is improved.
In summary, according to the adapter aging detection apparatus for a device to be charged in the embodiment of the application, by obtaining the charging curve of the module device to be charged in the preset state, and then generating the output curve of the adapter according to the curve by the generation module, the detection module controls the adapter to output according to the output curve, and detects the temperature of the adapter, and determines whether the adapter is qualified in aging according to the temperature of the adapter. Therefore, the detection device of the embodiment of the application controls the adapter to output according to the output curve, so that the aging effect of the adapter can be met, the working condition of the adapter during working can be detected, and the reliability of the adapter is ensured.
In order to achieve the above object, a third aspect of the present application provides a non-transitory computer-readable storage medium, where the program is executed by a processor to implement the adapter aging detection method for a device to be charged.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. If implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (12)
1. An adapter aging detection method is characterized by comprising the following steps:
acquiring a charging curve of equipment to be charged in a preset state;
generating an output profile of the adapter from the charging profile, the output profile comprising a plurality of load states and a duration of each load state;
controlling the adapter to output according to the output curve through a load simulator, and detecting the temperature of the adapter, wherein the load simulator comprises a display device, a controller, a load simulation circuit and an interface connected with the adapter; and
after the operation of each load state for the corresponding duration, judging whether the temperature of the adapter is greater than a preset temperature threshold, wherein the preset temperature thresholds corresponding to each load state are different; and if the temperature is larger than the preset temperature threshold, judging the aging.
2. The adapter degradation detection method of claim 1, wherein the predetermined state is a state of charging from zero to 100% of the power of the device to be charged.
3. The adapter degradation detection method of claim 1, wherein the output curve comprises N load conditions, wherein a preset temperature threshold corresponding to an ith load condition is less than a preset temperature threshold corresponding to an (i + 1) th load condition, wherein i is less than N.
4. An adapter adapted for use in the adapter degradation detection method of any one of claims 1-3, the adapter further comprising:
a first rectifying unit rectifying an input alternating current to output a voltage of a first ripple waveform;
a switching unit for modulating a voltage of the first ripple waveform according to a control signal;
a transformer for outputting a voltage of a second ripple waveform according to the modulated voltage of the first ripple waveform;
a second rectifying unit for rectifying the voltage of the second ripple waveform to output a voltage of a third ripple waveform;
the first charging interface is connected with the second rectifying unit;
the sampling unit is used for sampling the voltage and/or the current output by the second rectifying unit to obtain a voltage sampling value and/or a current sampling value;
and the control unit is respectively connected with the sampling unit and the switch unit, outputs the control signal to the switch unit, and adjusts the duty ratio of the control signal according to the voltage sampling value and/or the current sampling value so as to enable the voltage of the third pulse waveform to meet the charging requirement.
5. The adapter as claimed in claim 4, wherein the control unit is further adapted to adjust the frequency of the control signal in accordance with the voltage sample value and/or the current sample value.
6. The adapter of claim 4, wherein the adapter further comprises:
and the driving unit is connected between the switch unit and the control unit and is used for driving the switch unit to be switched on or switched off according to the control signal.
7. The adapter of claim 6, wherein the adapter further comprises:
an auxiliary winding which generates a voltage of a fourth ripple waveform according to the modulated voltage of the first ripple waveform;
and the power supply unit is connected with the auxiliary winding and is used for converting the voltage of the fourth pulse waveform to output direct current to respectively supply power to the driving unit and/or the control unit.
8. The adapter of claim 7, wherein the adapter further comprises:
the first voltage detection unit is respectively connected with the auxiliary winding and the control unit, and is used for detecting the voltage of the fourth pulse waveform to generate a voltage detection value, and the control unit is further used for adjusting the duty ratio of the control signal according to the voltage detection value.
9. An adapter degradation detection apparatus, comprising:
the acquisition module is used for acquiring a charging curve of the equipment to be charged in a preset state;
a generating module for generating an output curve of the adapter according to the charging curve, the output curve including a plurality of load states and a duration of each load state;
the detection module is used for controlling the adapter to output according to the output curve through a load simulator, and detecting the temperature of the adapter, wherein the load simulator comprises a display device, a controller, a load simulation circuit and an interface connected with the adapter; the system is also used for judging whether the temperature of the adapter is greater than a preset temperature threshold value or not after the corresponding duration time of the operation of each load state, wherein the preset temperature threshold values corresponding to each load state are different; and if the temperature is larger than the preset temperature threshold, judging the aging.
10. The adapter degradation detection apparatus of claim 9, wherein the predetermined state is a state of charging from zero to 100% of the capacity of the device to be charged.
11. The adapter degradation detection device of claim 9, wherein the output curve comprises N load conditions, wherein the preset temperature threshold for the ith load condition is less than the preset temperature threshold for the (i + 1) th load condition, wherein i is less than N.
12. A non-transitory computer-readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the adapter degradation detection method of any of claims 1-3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/091491 WO2019237330A1 (en) | 2018-06-15 | 2018-06-15 | Adapter aging detection method and apparatus for device to be charged |
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| CN111433619A CN111433619A (en) | 2020-07-17 |
| CN111433619B true CN111433619B (en) | 2023-02-28 |
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| CN201880078146.4A Active CN111433619B (en) | 2018-06-15 | 2018-06-15 | Adapter aging detection method and device for equipment to be charged |
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| Country | Link |
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| WO (1) | WO2019237330A1 (en) |
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| CN111896884B (en) * | 2020-07-31 | 2023-11-14 | 北京小米移动软件有限公司 | Charging detection method and device |
| CN113406421A (en) * | 2021-06-18 | 2021-09-17 | 上海华兴数字科技有限公司 | Durable aging loading test system and method |
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| CN111433619A (en) | 2020-07-17 |
| WO2019237330A1 (en) | 2019-12-19 |
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