CN112968495A - Mobile terminal and method for controlling power on or off - Google Patents
Mobile terminal and method for controlling power on or off Download PDFInfo
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- CN112968495A CN112968495A CN202110236034.0A CN202110236034A CN112968495A CN 112968495 A CN112968495 A CN 112968495A CN 202110236034 A CN202110236034 A CN 202110236034A CN 112968495 A CN112968495 A CN 112968495A
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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Abstract
An embodiment of the present application provides a mobile terminal, including: the device comprises a charging module, a pulse generator, a capacitor, a discharging module, a voltage comparator, a first power supply, a display screen module and a fingerprint module; the pulse generator is respectively electrically connected with the charging module and the capacitor, and the charging module is used for controlling the pulse generator to charge the capacitor; the capacitor is electrically connected with the discharging module, and the discharging module is used for discharging the capacitor; the voltage comparator is electrically connected with the capacitor and the first power supply respectively and used for detecting the voltage of the capacitor; first power supply respectively with display screen module and fingerprint module electric connection, first power supply is used for providing the power supply for display screen module and/or fingerprint module. According to the embodiment of the application, the voltage of the capacitor is detected to control the first power supply to be turned on or turned off, so that the problem that when the display screen module and the fingerprint module work simultaneously, one of the first power supply is turned off directly to cause the first power supply to be turned off can be avoided.
Description
Technical Field
The present application relates to the field of mobile terminal technologies, and in particular, to a mobile terminal and a method for controlling power on or power off.
Background
At present, a fingerprint module is generally installed on a mobile terminal and used for collecting fingerprints of a user to perform corresponding operations such as unlocking and mobile payment. Simultaneously in order to save mobile terminal inner space, increase mobile terminal operationality, some mobile terminal manufacturers do fingerprint module and display screen module in a module jointly, and fingerprint module and display screen module share a power this moment. When the fingerprint module and the display screen module are both in operation, if one of the modules is turned off, the power supply is turned off, so that the other module is also turned off. For example, when the display screen module is turned off, the power supply is turned off, so that the fingerprint module is turned off, and the fingerprint module actually needs to operate, so that the power supply needs to be turned on again, and the operation of the fingerprint module is affected after the power supply is turned off and turned on again.
Therefore, the prior art has defects and needs to be improved and developed.
Disclosure of Invention
The embodiment of the application provides a mobile terminal and a method for controlling power supply to be turned on or turned off, which can avoid the problem that when a display screen module and a fingerprint module work simultaneously, a first power supply is directly turned off due to turning off of one module, so that the work of the other module is influenced.
An embodiment of the present application provides a mobile terminal, including: the device comprises a charging module, a pulse generator, a capacitor, a discharging module, a voltage comparator, a first power supply, a display screen module and a fingerprint module;
the pulse generator is respectively electrically connected with the charging module and the capacitor, and the charging module is used for controlling the pulse generator to generate pulses to charge the capacitor for one time when the display screen module or the fingerprint module is started;
the capacitor is electrically connected with the discharging module, and the discharging module is used for discharging the capacitor once when the display screen module or the fingerprint module is closed;
the voltage comparator is electrically connected with the capacitor and the first power supply respectively and used for detecting the voltage of the capacitor;
the first power supply is electrically connected with the display screen module and the fingerprint module respectively, and is used for supplying power to the display screen module and/or the fingerprint module when the voltage of the capacitor is higher than a first preset voltage.
In the mobile terminal of this embodiment, the mobile terminal further includes a discharge resistor and a first switch, the capacitor includes a first electrode plate and a second electrode plate, the first electrode plate is electrically connected to the pulse generator, the second electrode plate is electrically connected to the discharge module, and the first electrode plate, the second electrode plate, the discharge resistor and the first switch are connected in series to form a series circuit.
In this embodiment, the mobile terminal further includes a second power supply and a second power supply switch, the second power supply switch is connected to the pulse generator, the second power supply is electrically connected to the capacitor, the second power supply switch is used to control the on/off of the second power supply, when the pulse generated by the pulse generator is at a high level, the second power supply switch is turned off, and the second power supply charges the capacitor.
In this embodiment, the mobile terminal further includes a starting module, a closing module, and a starting module, where the starting module is electrically connected to the charging module, the starting module is configured to start the display module or the fingerprint module, the closing module is electrically connected to the discharging module, the closing module is configured to close the display module or the fingerprint module, the starting module is electrically connected to the capacitor, and the starting module is configured to start the mobile terminal.
An embodiment of the present application further provides a method for controlling power on or off, where the method is applicable to the mobile terminal according to any embodiment, and the method includes:
when the display screen module or the fingerprint module is detected to be started, the charging module controls the pulse generator to generate a pulse so as to charge the capacitor for one time;
when the display screen module or the fingerprint module is detected to be closed, controlling a discharging module to discharge the capacitor for one time, wherein the voltage of the one-time discharging is equal to the voltage of the one-time charging;
detecting the voltage of the capacitor, and turning on a first power supply when the voltage of the capacitor is detected to be higher than a first preset voltage;
and when the voltage of the capacitor is detected to be lower than or equal to a first preset voltage, the first power supply source is turned off.
In the method for controlling power on or power off according to the embodiment of the present application, when it is detected that the display screen module or the fingerprint module is started, the charging module controls the pulse generator to generate a pulse to charge the capacitor for one time, including:
when the display screen module or the fingerprint module is detected to be started, the charging module generates a charging signal and sends the charging signal to the pulse generator to trigger the pulse generator to generate a pulse to the first electrode plate so as to charge the capacitor once, wherein the first switch is in a disconnected state in the process that the pulse generator generates a pulse to charge the capacitor.
In the method for controlling power on or power off according to the embodiment of the present application, when it is detected that the display screen module or the fingerprint module is started, the charging module controls the pulse generator to generate a pulse to charge the capacitor for one time, and the method further includes:
when the display screen module or the fingerprint module is detected to be started, the charging module controls the pulse generator to generate a pulse to a second power supply switch, the second power supply switch is closed under the high-level pulse, and the second power supply supplies power to the capacitor for one-time charging.
In the method for controlling power on or power off according to the embodiment of the present application, when it is detected that the display screen module or the fingerprint module is turned off, controlling the discharging module to discharge the capacitor for one time includes:
when the display screen module or the fingerprint module is detected to be closed, the discharging module is controlled to close the first switch so as to discharge the capacitor.
In the method for controlling power on or power off according to the embodiment of the present application, before the step of controlling the pulse generator to generate a pulse to charge the capacitor when the display screen module or the fingerprint module is detected to be started, the method further includes:
and when the mobile terminal is detected to be started, controlling the discharging module to close the first switch so as to discharge the capacitor and clear the voltage of the capacitor.
In the method for controlling power on or power off according to the embodiment of the present application, when it is detected that the mobile terminal is turned on, the controlling the discharging module to close the first switch to discharge the capacitor and clear the voltage of the capacitor includes:
when the mobile terminal is detected to be started, the discharging module is controlled to close the first switch for a first preset time so as to discharge the capacitor and clear the voltage of the capacitor.
The mobile terminal provided by the embodiment of the application comprises a charging module, a pulse generator, a capacitor, a discharging module, a voltage comparator, a first power supply, a display screen module and a fingerprint module; the pulse generator is respectively electrically connected with the charging module and the capacitor, and the charging module is used for controlling the pulse generator to generate pulses to charge the capacitor for one time when the display screen module or the fingerprint module is started; the capacitor is electrically connected with the discharging module, and the discharging module is used for discharging the capacitor once when the display screen module or the fingerprint module is closed; the voltage comparator is electrically connected with the capacitor and the first power supply respectively and used for detecting the voltage of the capacitor; the first power supply is respectively electrically connected with the display screen module and the fingerprint module, and the first power supply is used for supplying power to the display screen module and/or the fingerprint module when the voltage of the capacitor is higher than a first preset voltage. According to the embodiment of the application, the first power supply is controlled to be turned on or turned off by detecting the voltage of the capacitor, namely, when the voltage of the capacitor is higher than a first preset voltage, the first power supply is turned on, when the voltage of the capacitor is lower than or equal to the first preset voltage, the first power supply is turned off, the turning on or the turning off of the first power supply is not directly controlled by the turning on or the turning off of the display screen module and the fingerprint module, and therefore the problem that when the display screen module and the fingerprint module work simultaneously, the turning off of one module causes the turning off of the first power supply, and the working of the other module is influenced can be solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a mobile terminal according to an embodiment of the present application.
Fig. 2 is another schematic structural diagram of a mobile terminal according to an embodiment of the present application.
Fig. 3 is another schematic structural diagram of a mobile terminal according to an embodiment of the present application.
Fig. 4 is a schematic structural diagram of a capacitor and a discharging module according to an embodiment of the present disclosure.
Fig. 5 is a flowchart illustrating a method for controlling power on or off according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. 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 implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The embodiment of the application provides a mobile terminal, which can be a smart phone, a tablet computer, a smart watch and other devices. Referring to fig. 1 to 4, the mobile terminal 1200 includes a cover plate 10, a display 20, a battery 30, a housing 40, a charging module 50, a pulse generator 60, a capacitor 70, a discharging module 80, a voltage comparator 90, a first power supply 100, a display module 110, and a fingerprint module 120.
Wherein the cover plate 10 is mounted to the display screen 20 to cover the display screen 20. The cover plate 10 may be a transparent glass cover plate. For example, the cover plate 10 may be a glass cover plate made of a material such as sapphire.
The display screen 20 is mounted on the housing 40 to form a display surface of the mobile terminal 100. The display screen 20 may include a display area and a non-display area. The display area is used for displaying information such as images and texts. The non-display area does not display information. Functional components such as a fingerprint module, a touch circuit and the like can be arranged at the bottom of the non-display area.
For example, the display screen 20 may also be a full screen, with only display areas and no non-display areas. Wherein, functional components such as fingerprint module, touch-control circuit set up the below at the full screen. For example, the display screen 20 may also be a shaped screen.
Wherein the case 40 may form an outer contour of the mobile terminal 100. The cover plate 10 may be fixed to the case 40, and the cover plate 10 and the case 40 form a closed space to accommodate the display screen 20, the battery 30, the charging module 50, the pulse generator 60, the capacitor 70, the discharging module 80, the voltage comparator 90, the first power supply 100, the display screen module 110, and the fingerprint module 120.
In some embodiments, the housing 40 may be made of a metal material such as magnesium alloy, stainless steel, etc. It should be noted that the material of the housing 40 according to the embodiment of the present application is not limited to this, and other manners may also be adopted, for example, the housing 40 may include a non-metal portion and a metal portion. For example, the housing 40 may be a plastic housing. For example, the housing 40 may be a ceramic housing. For example, the housing 40 may be a metal and plastic mating housing structure. The shell 40 may be formed by cold working, hot working, injection molding, extrusion molding, compression molding, blow molding, cast molding, and gas assist molding. For example, the shell 40 is made of aluminum or an aluminum alloy, and can be formed by cold working methods such as lathing, milling, planing, drilling, and drawing. For example, the housing 40 may be made of a non-metal material by a non-metal material molding method such as injection molding.
The pulse generator 60 is electrically connected to the charging module 50 and the capacitor 70, respectively, and the charging module 50 is configured to control the pulse generator 60 to generate a pulse to charge the capacitor 70 once when the display screen module 110 or the fingerprint module 120 is started;
the reason why the charging is called as one-time charging is that when the display screen module 110 or the fingerprint module 120 is activated, the charging module 50 controls the pulse generator 60 to generate one pulse to charge the capacitor 70, and the number of pulses is one, so that the charging is called as one-time charging.
The capacitor 70 is electrically connected to the discharging module 80, and the discharging module 80 is configured to discharge the capacitor 70 once when the display module 110 or the fingerprint module 120 is turned off;
the reason why the discharge is performed once is that the voltage of the capacitor 70 discharged once is equal to the voltage charged once.
The voltage comparator 90 is electrically connected to the capacitor 70 and the first power supply 100, respectively, and the voltage comparator 90 is configured to detect a voltage of the capacitor 70;
the first power supply 100 is electrically connected to the display screen module 110 and the fingerprint module 120, respectively, and the first power supply 100 is configured to supply power to the display screen module 110 and/or the fingerprint module 120 when the voltage of the capacitor 70 is higher than a first predetermined voltage.
The first preset voltage can be set to be 0.05V, and when the voltage of the capacitor is higher than 0.05V, the first power supply is started to supply power to the display screen module and/or the fingerprint module. It should be noted that the value of the first preset voltage is not limited to 0.05V, and a person skilled in the art can specifically set the first preset voltage according to actual situations, and the first preset voltage is not limited herein.
In some embodiments, the discharging module 80 includes a discharging resistor 801 and a first switch 802, the capacitor 70 includes a first electrode plate 701 and a second electrode plate 702, the first electrode plate 701 is electrically connected to the pulse generator 60, the second electrode plate 702 is electrically connected to the discharging resistor 801, and the first switch 802 is electrically connected to the discharging resistor 801 and the first switch 802, respectively.
The first electrode plate 701, the second electrode plate 702, the discharging resistor 801 and the first switch 802 are connected in series to form a series circuit, so that the capacitor 70 can be discharged by controlling the first switch 802 to be closed, and when the charging module 50 controls the pulse generator 60 to generate pulses to charge the capacitor 70, the first switch 802 is only required to be opened, so that the capacitor 70 can be discharged without affecting the charging of the capacitor 70.
In some embodiments, the mobile terminal 1200 further includes a second power supply 130 and a second power supply switch 140, the second power supply switch 140 is connected to the pulse generator 60, the second power supply 130 is electrically connected to the capacitor 70, the second power supply switch 140 is configured to control the second power supply 130 to be turned on or off, when the pulse generated by the pulse generator 60 is at a high level, the second power supply switch 140 is turned off, and the second power supply 130 charges the capacitor 70.
Wherein, by arranging the second power supply 130 and the second power supply switch 140 between the capacitor 70 and the pulse generator 60, another way of charging the capacitor 70 is provided, i.e. the pulse generated by the pulse generator 60 does not directly charge the capacitor 70, but the capacitor is charged by the second power supply 130 by controlling the closing of the second power supply switch 140, i.e. when the pulse generated by the pulse generator 60 is at a high level, the second power supply switch 140 is closed, and the second power supply 130 charges the capacitor 70; when the pulse generated by the pulse generator 60 is at a low level, the second power supply switch 140 is turned off, and the second power supply 130 does not charge the capacitor 70. Wherein the high level may be 1.8V and the low level may be 0V.
In some embodiments, the mobile terminal 1200 further includes an activation module 150, a shutdown module 160, and a power-on module 170, wherein the activation module 150 is electrically connected to the charging module 50, the activation module 150 is configured to activate the display module 110 or the fingerprint module 120, the shutdown module 180 is electrically connected to the discharging module 80, the shutdown module 160 is configured to shut down the display module 110 or the fingerprint module 120, the power-on module 170 is electrically connected to the capacitor 70, and the power-on module 170 is configured to turn on the mobile terminal 1200.
To sum up, the mobile terminal 1200 provided in the embodiment of the present application includes a charging module 50, a pulse generator 60, a capacitor 70, a discharging module 80, a voltage comparator 90, a first power supply 100, a display screen module 110, and a fingerprint module 120; the pulse generator 60 is electrically connected to the charging module 50 and the capacitor 70, respectively, and the charging module 50 is configured to control the pulse generator 60 to generate a pulse to charge the capacitor 70 once when the display screen module 110 or the fingerprint module 120 is started; the capacitor 70 is electrically connected to the discharging module 80, and the discharging module 80 is configured to discharge the capacitor 70 once when the display module 110 or the fingerprint module 120 is turned off; the voltage comparator 90 is electrically connected to the capacitor 70 and the first power supply 100, respectively, and the voltage comparator 90 is configured to detect a voltage of the capacitor 70; the first power supply 100 is electrically connected to the display screen module 110 and the fingerprint module 120, respectively, and the first power supply 100 is configured to supply power to the display screen module 110 and/or the fingerprint module 120 when the voltage of the capacitor 70 is higher than a first predetermined voltage. The embodiment of the present application controls the first power supply 100 to be turned on or off by detecting the voltage of the capacitor 70, rather than controlling the first power supply 100 to be turned on or off by turning on or off the display screen module 110 and the fingerprint module 120 themselves, so that it is possible to avoid the problem that when the display screen module 110 and the fingerprint module 120 operate simultaneously, the first power supply 100 is turned off due to turning off one of the modules, thereby affecting the operation of the other module.
The embodiment of the application also provides a method for controlling the power supply to be turned on or turned off, and the method is suitable for the method for controlling the power supply to be turned on or turned off in any embodiment.
Referring to fig. 5, fig. 5 is a schematic flowchart illustrating a method for controlling power on or off according to an embodiment of the disclosure. The method may comprise the steps of:
For example, when the display screen module is detected to be started, the charging module controls the pulse generator to generate a pulse to charge the capacitor once. The reason why the charging is performed once is that when the display screen module or the fingerprint module is started, the charging module controls the pulse generator to generate a pulse to charge the capacitor, and the number of the pulses is one, so that the charging is performed once.
In some embodiments, the charging module controls the pulse generator to generate a pulse to charge the capacitor once when the display screen module or the fingerprint module is detected to be activated, and the charging module includes:
when the display screen module or the fingerprint module is detected to be started, the charging module generates a charging signal and sends the charging signal to the pulse generator to trigger the pulse generator to generate a pulse to the first electrode plate so as to charge the capacitor once, wherein the first switch is in a disconnected state in the process that the pulse generator generates a pulse to charge the capacitor.
The first switch is in an open state in the process of generating a pulse to charge the capacitor by the pulse generator, because the capacitor, the discharge resistor and the first switch are connected in series to form a series loop, if the first switch is closed, the capacitor is discharged, and therefore the first switch is in the open state at the moment.
In some embodiments, the charging module controls the pulse generator to generate a pulse to charge the capacitor once when the display screen module or the fingerprint module is detected to be activated, and further includes:
when the display screen module or the fingerprint module is detected to be started, the charging module controls the pulse generator to generate a pulse to a second power supply switch, the second power supply switch is closed under the high-level pulse, and the second power supply supplies power to the capacitor for one-time charging.
That is, when the second power supply and the second power supply switch are provided between the capacitor of the mobile terminal and the pulse generator, the capacitor is charged by the second power supply. For example, when the fingerprint module is detected to be started, the charging module controls the pulse generator to generate a pulse, the pulse rushes to the second power supply switch, the second power supply switch is closed under the high-level pulse, and the second power supply will charge the capacitor once. Wherein, the high level may be 1.8V.
And 102, when the display screen module or the fingerprint module is detected to be closed, controlling a discharging module to discharge the capacitor once, wherein the voltage discharged once is equal to the voltage charged once.
The voltage of one-time discharging is equal to the voltage of one-time charging, that is, after the charging module controls the pulse generator to generate a pulse to charge the capacitor for one time, the voltage difference between the first plate and the second plate of the capacitor is increased by 0.1V, and after the discharging module discharges the capacitor for one time, the voltage difference between the first plate and the second plate of the capacitor is correspondingly decreased by 0.1V.
In some embodiments, the controlling the discharging module to discharge the capacitor once when the display screen module or the fingerprint module is detected to be turned off includes:
when the display screen module or the fingerprint module is detected to be closed, the discharging module is controlled to close the first switch so as to discharge the capacitor.
The capacitor, the discharge resistor and the first switch are connected in series to form a series loop, so that the capacitor can be discharged only by closing the first switch, and the voltage between the first plate and the second plate of the capacitor is equal, namely no voltage difference exists.
The first preset voltage can be set to be 0.05V, and when the voltage of the capacitor is higher than 0.05V, the first power supply is started to supply power to the display screen module and/or the fingerprint module. It should be noted that the value of the first preset voltage is not limited to 0.05V, and a person skilled in the art can specifically set the first preset voltage according to actual situations, and the first preset voltage is not limited herein.
And 104, turning off the first power supply when the voltage of the capacitor is detected to be lower than or equal to a first preset voltage.
For example, when the voltage of the capacitor is detected to be lower than or equal to 0.05V, the first power supply is turned off, and the power supply to the display screen module and/or the fingerprint module is stopped.
In some embodiments, before the controlling the pulse generator to generate a pulse to charge the capacitor when the display screen module or the fingerprint module is detected to be activated, the method further includes:
and when the mobile terminal is detected to be started, controlling the discharging module to close the first switch so as to discharge the capacitor and clear the voltage of the capacitor.
According to the scheme, the voltage of the capacitor is detected to judge whether the display screen module is started or closed and whether the fingerprint module is started or closed, so that the first power supply source is controlled to be started or closed.
In some embodiments, the controlling the discharging module to close the first switch to discharge the capacitor and clear the voltage of the capacitor when it is detected that the mobile terminal is turned on includes:
when the mobile terminal is detected to be started, the discharging module is controlled to close the first switch for a first preset time so as to discharge the capacitor and clear the voltage of the capacitor.
Since the voltage of the capacitor needs to be cleared, a certain time is required for the discharging process, and therefore when the mobile terminal is detected to be turned on, the discharging module is controlled to close the first switch for a period of time, which is a first preset time, and considering that the turning-on process of the mobile terminal is usually more than 10 seconds, and 10 seconds are completely enough to clear the voltage of the voltage transformer, the first preset time can be set to 10 seconds.
As can be seen from the above, in the method for controlling power on or power off provided in the embodiment of the present application, when the display screen module or the fingerprint module is detected to be started, the charging module controls the pulse generator to generate a pulse, so as to charge the capacitor for one time; when the display screen module or the fingerprint module is detected to be closed, controlling a discharging module to discharge the capacitor for one time, wherein the voltage of the one-time discharging is equal to the voltage of the one-time charging; detecting the voltage of the capacitor, and turning on a first power supply when the voltage of the capacitor is detected to be higher than a first preset voltage; and when the voltage of the capacitor is detected to be lower than or equal to a first preset voltage, the first power supply source is turned off. According to the embodiment of the application, the first power supply is controlled to be turned on or turned off by detecting the voltage of the capacitor, namely, when the voltage of the capacitor is higher than a first preset voltage, the first power supply is turned on, when the voltage of the capacitor is lower than or equal to the first preset voltage, the first power supply is turned off, the turning on or the turning off of the first power supply is not directly controlled by the turning on or the turning off of the display screen module and the fingerprint module, and therefore the problem that when the display screen module and the fingerprint module work simultaneously, the turning off of one module causes the turning off of the first power supply, and the working of the other module is influenced can be solved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The foregoing detailed description is directed to a system and a method for implementing panoramic looking around, which are provided by embodiments of the present application, and specific examples are applied in the present application to explain the principles and implementations of the present application, and the descriptions of the foregoing embodiments are only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A mobile terminal, characterized in that the mobile terminal comprises: the device comprises a charging module, a pulse generator, a capacitor, a discharging module, a voltage comparator, a first power supply, a display screen module and a fingerprint module;
the pulse generator is respectively electrically connected with the charging module and the capacitor, and the charging module is used for controlling the pulse generator to generate pulses to charge the capacitor for one time when the display screen module or the fingerprint module is started;
the capacitor is electrically connected with the discharging module, and the discharging module is used for discharging the capacitor once when the display screen module or the fingerprint module is closed;
the voltage comparator is electrically connected with the capacitor and the first power supply respectively and used for detecting the voltage of the capacitor;
the first power supply is respectively electrically connected with the display screen module and the fingerprint module, and the first power supply is used for supplying power to the display screen module and/or the fingerprint module when the voltage of the capacitor is higher than a first preset voltage.
2. The mobile terminal of claim 1, wherein the discharging module comprises a discharging resistor and a first switch, the capacitor comprises a first electrode plate and a second electrode plate, the first electrode plate is electrically connected to the pulse generator, the second electrode plate is electrically connected to the discharging resistor, and the first switch is electrically connected to the discharging resistor and the first switch, respectively.
3. The mobile terminal of claim 1, further comprising a second power supply and a second power supply switch, wherein the second power supply switch is connected to the pulse generator, the second power supply is electrically connected to the capacitor, the second power supply switch is configured to control the second power supply to be turned on or off, and when the pulse generated by the pulse generator is at a high level, the second power supply switch is turned off, and the second power supply charges the capacitor.
4. The mobile terminal of claim 1, further comprising an activation module, a shutdown module, and a power-on module, wherein the activation module is electrically connected to the charging module, the activation module is configured to activate the display module or the fingerprint module, the shutdown module is electrically connected to the discharging module, the shutdown module is configured to shut down the display module or the fingerprint module, the power-on module is electrically connected to the capacitor, and the power-on module is configured to turn on the mobile terminal.
5. A method for controlling power on or off, wherein the method is applied to the mobile terminal of any one of claims 1 to 4, and the method comprises:
when the display screen module or the fingerprint module is detected to be started, the charging module controls the pulse generator to generate a pulse so as to charge the capacitor for one time;
when the display screen module or the fingerprint module is detected to be closed, controlling a discharging module to discharge the capacitor for one time, wherein the voltage of the one-time discharging is equal to the voltage of the one-time charging;
detecting the voltage of the capacitor, and turning on a first power supply when the voltage of the capacitor is detected to be higher than a first preset voltage;
and when the voltage of the capacitor is detected to be lower than or equal to a first preset voltage, the first power supply source is turned off.
6. The method for controlling power on or off according to claim 5, wherein the charging module controls the pulse generator to generate a pulse to charge the capacitor once when the start of the display screen module or the fingerprint module is detected, and the method comprises:
when the display screen module or the fingerprint module is detected to be started, the charging module generates a charging signal and sends the charging signal to the pulse generator to trigger the pulse generator to generate a pulse to the first electrode plate so as to charge the capacitor once, wherein the first switch is in a disconnected state in the process that the pulse generator generates a pulse to charge the capacitor.
7. The method for controlling power on or off according to claim 5, wherein the charging module controls the pulse generator to generate a pulse to charge the capacitor once when the activation of the display screen module or the fingerprint module is detected, further comprising:
when the display screen module or the fingerprint module is detected to be started, the charging module controls the pulse generator to generate a pulse to a second power supply switch, the second power supply switch is closed under the high-level pulse, and the second power supply supplies power to the capacitor for one-time charging.
8. The method for controlling power on or power off according to claim 5, wherein the controlling the discharging module to discharge the capacitor once when the display screen module or the fingerprint module is detected to be turned off comprises:
when the display screen module or the fingerprint module is detected to be closed, the discharging module is controlled to close the first switch so as to discharge the capacitor.
9. The method for controlling power on or off according to claim 8, wherein before the charging module controls the pulse generator to generate a pulse to charge the capacitor when the display screen module or the fingerprint module is detected to be activated, the method further comprises:
and when the mobile terminal is detected to be started, controlling the discharging module to close the first switch so as to discharge the capacitor and clear the voltage of the capacitor.
10. The method according to claim 9, wherein the controlling the discharging module to close the first switch to discharge the capacitor and clear the voltage of the capacitor when the mobile terminal is detected to be turned on comprises:
when the mobile terminal is detected to be started, the discharging module is controlled to close the first switch for a first preset time so as to discharge the capacitor and clear the voltage of the capacitor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110236034.0A CN112968495A (en) | 2021-03-03 | 2021-03-03 | Mobile terminal and method for controlling power on or off |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110236034.0A CN112968495A (en) | 2021-03-03 | 2021-03-03 | Mobile terminal and method for controlling power on or off |
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| GB1384283A (en) * | 1972-09-05 | 1975-02-19 | Marconi Co Ltd | Power supply circuits |
| TW201040702A (en) * | 2009-05-01 | 2010-11-16 | Linear Artwork Inc | Power supply system and its method |
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