CN106325454B - Power supply control device and method and electronic equipment - Google Patents
Power supply control device and method and electronic equipment Download PDFInfo
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- CN106325454B CN106325454B CN201610709721.9A CN201610709721A CN106325454B CN 106325454 B CN106325454 B CN 106325454B CN 201610709721 A CN201610709721 A CN 201610709721A CN 106325454 B CN106325454 B CN 106325454B
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
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- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
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Abstract
The present disclosure relates to a power supply control device, including: a signal generation unit configured to generate a first signal according to a first operation and a second signal according to a second operation; and the first end of the switch unit is connected with a power supply, the second end of the switch unit is connected with a Power Management Integrated Circuit (PMIC), the third end of the switch unit is connected with the signal generation unit, and the switch unit is configured to disconnect the power supply from the PMIC when receiving the first signal and conduct the power supply and the PMIC when receiving the second signal. According to the technical scheme of the disclosure, under the condition that the power management integrated circuit does not have the function of controlling the output of the power supply signal, the terminal does not need to be restarted by pulling out a power line or disassembling a battery, the terminal can be restarted only by operating the signal generation unit, and the operation is simple and rapid.
Description
Technical Field
The present disclosure relates to the field of terminal technologies, and in particular, to a power supply control device, and an electronic apparatus.
Background
In the related art, when the terminal is halted, a power key is pressed for a long time to control a PMIC (power management IC) to suspend outputting power supply signals to components in the terminal, and then the power supply signals are output to hardware in the terminal again, so as to restart the terminal.
However, the operation requires the PMIC to have the function of controlling the output power supply signal, however, the PMIC in some terminals does not have the function of controlling the output power supply signal, and when the terminal crashes, the terminal can only be restarted by unplugging the power line or disassembling the battery, which is very inconvenient.
Disclosure of Invention
The present disclosure provides a power supply control apparatus, method and electronic device to solve the deficiencies in the related art.
According to a first aspect of the embodiments of the present disclosure, there is provided a power supply control device including:
a signal generation unit configured to generate a first signal according to a first operation and a second signal according to a second operation;
and the first end of the switch unit is connected with a power supply, the second end of the switch unit is connected with a Power Management Integrated Circuit (PMIC), the third end of the switch unit is connected with the signal generation unit, and the switch unit is configured to disconnect the power supply from the PMIC when receiving the first signal and conduct the power supply and the PMIC when receiving the second signal.
Optionally, the signal generating unit includes:
the key induction subunit is configured to receive a signal generated by a key and determine whether the signal is a specified disconnection signal;
the timing subunit is connected with the key induction subunit and the switch unit and is configured to start timing when the disconnection signal is received and stop timing when the disconnection signal is stopped being received;
the signal generating subunit is configured to transmit the first signal to the switch unit in a state that a timing duration of the timing subunit is greater than or equal to a preset duration, and transmit the second signal to the switch unit in a state that the timing duration is less than the preset duration.
Optionally, the timing subunit is further configured to start timing when the signal generating subunit transmits the first signal to the switch unit;
the signal generation subunit is further configured to send the second signal to the switch unit when the timing subunit times the transmission of the first signal to reach a time threshold.
Optionally, the timing subunit is further configured to, when the signal generating subunit sends the second signal to the switch unit, time-count and restore an initial state.
Optionally, the signal generating unit includes a single chip microcomputer.
Optionally, the power supply is connected to the single chip microcomputer and supplies power to the single chip microcomputer.
Optionally, the working voltage of the single chip microcomputer is 2.8V to 4.5V.
Optionally, the power supply control device further includes:
and one end of the energy conversion unit is connected with the power supply, and the other end of the energy conversion unit is connected with the single chip microcomputer and used for converting the voltage signal output by the power supply into a voltage signal corresponding to the working voltage of the single chip microcomputer.
Optionally, the switch unit is a P-channel transistor, wherein a gate is connected to the signal generation unit and the power supply, a source is connected to the power supply, and a drain is connected to the power management integrated circuit.
According to a second aspect of embodiments of the present disclosure, there is provided a method comprising:
generating a first signal according to a first operation and generating a second signal according to a second operation;
and when the first signal is received, disconnecting the power supply from the PMIC, and when the second signal is received, connecting the power supply with the PMIC.
Optionally, the generating the first signal according to the first operation, and the generating the second signal according to the second operation includes:
receiving a signal generated by a key and determining whether the signal is a specified disconnection signal;
starting timing when the disconnection signal is received, and stopping timing when the disconnection signal is stopped being received;
and generating the first signal when the timing duration is greater than or equal to a preset duration, and generating the second signal when the timing duration is less than the preset duration.
According to a third aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
generating a first signal according to a first operation and generating a second signal according to a second operation;
and when the first signal is received, disconnecting the power supply from the PMIC, and when the second signal is received, connecting the power supply with the PMIC.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
as can be seen from the above embodiments, the present disclosure may send a signal to the switch unit through the signal generation unit to control the electrical connection between the power supply and the power management integrated circuit to be turned on or off. Therefore, under the condition that the power management integrated circuit does not have the function of controlling the output of the power supply signal, the state of supplying power to the power management integrated circuit can be controlled. Therefore, when the terminal crashes, the power supply and the power supply management integrated circuit can be disconnected according to the embodiment, so that the power supply management integrated circuit does not output power supply signals to other components in the terminal any more, so that the terminal is shut down, and then the power supply and the power supply management integrated circuit are connected, so that the power supply management integrated circuit outputs power supply signals to other components in the terminal, so that the terminal is restarted. Therefore, under the condition that the power management integrated circuit does not have the function of controlling the output of the power supply signal, the terminal does not need to be restarted by pulling out a power line or disassembling a battery, the terminal can be restarted only by operating the signal generating unit, and the operation is simple and quick.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic structural diagram illustrating a power supply control apparatus according to an exemplary embodiment.
Fig. 2 is a schematic structural diagram illustrating another power supply control apparatus according to an exemplary embodiment.
Fig. 3 is a schematic structural diagram illustrating yet another power supply control apparatus according to an exemplary embodiment.
Fig. 4 is a schematic structural diagram illustrating yet another power supply control apparatus according to an exemplary embodiment.
Fig. 5 is a schematic structural diagram illustrating still another power supply control device according to an exemplary embodiment.
Fig. 6 is a schematic structural diagram illustrating still another power supply control device according to an exemplary embodiment.
FIG. 7 is a schematic flow chart diagram illustrating a power supply control method in accordance with an exemplary embodiment.
FIG. 8 is a schematic flow chart diagram illustrating another power supply control method in accordance with an exemplary embodiment.
Fig. 9 is a block diagram illustrating an apparatus for power supply control according to an example embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is a schematic configuration diagram illustrating a power supply control apparatus according to an exemplary embodiment, which may be applied to a terminal. As shown in fig. 1, the apparatus may include:
a signal generating unit 11 configured to generate a first signal according to a first operation and a second signal according to a second operation.
In one embodiment, the signal generating unit may receive a user operation, and may generate different signals according to different operations, for example, a first signal may be generated according to a first operation, and a second signal may be generated according to a second operation. The first operation may be a touch operation on a terminal touch screen or a pressing operation on a physical key. The first signal and the second signal may be voltage signals, current signals, or other signals, such as magnetic field signals.
A switch unit 12 having a first terminal connected to a power supply 13, a second terminal connected to a power management integrated circuit PMIC14, and a third terminal connected to the signal generating unit 11, and configured to disconnect the power supply from the PMIC when receiving the first signal and to connect the power supply to the PMIC when receiving the second signal.
In one embodiment, the switching unit may be connected to other components in addition to the power supply, the PMIC, and the signal generating unit. The switch unit may include a plurality of connection terminals such as a transistor, and a single-pole multi-throw switch, and has a switching function.
According to the present embodiment, a signal may be transmitted to the switching unit through the signal generating unit to control the electrical connection between the power supply and the power management integrated circuit to be turned on or off. Therefore, under the condition that the power management integrated circuit does not have the function of controlling the output of the power supply signal, the state of supplying power to the power management integrated circuit can be controlled. Therefore, when the terminal crashes, the power supply and the power supply management integrated circuit can be disconnected according to the embodiment, so that the power supply management integrated circuit does not output power supply signals to other components in the terminal any more, so that the terminal is shut down, and then the power supply and the power supply management integrated circuit are connected, so that the power supply management integrated circuit outputs power supply signals to other components in the terminal, so that the terminal is restarted.
Therefore, according to the embodiment, under the condition that the power management integrated circuit does not have the function of controlling the output of the power supply signal, the terminal does not need to be restarted by pulling out a power line or disassembling a battery, the terminal can be restarted only by operating the signal generating unit, and the operation is simple and rapid.
Fig. 2 is a schematic structural diagram illustrating another power supply control apparatus according to an exemplary embodiment. As shown in fig. 2, on the basis of the embodiment shown in fig. 1, the signal generating unit 11 includes:
and a key sensing subunit 111 configured to receive a signal generated by a key and determine whether the signal is a designated turn-off signal.
In one embodiment, the keys may be disposed on the terminal or may be disposed off of the terminal and electrically connected to the terminal.
In one embodiment, the key may be a physical key, such as a separate key, or a plurality of combination keys. The key sensing subunit includes a plurality of physical keys, and the user needs to operate the plurality of physical keys to generate the disconnection signal, for example, to operate the plurality of physical keys simultaneously, or to sequentially operate each physical key according to a preset sequence, so that the situation that the disconnection signal is erroneously generated due to the misoperation of a single key can be effectively avoided.
In one embodiment, the key sensing subunit may include a pressure sensor, and when the user presses the physical key, the key transmits pressure to the pressure sensor, and the pressure sensor generates a disconnection signal according to the sensed pressure and transmits the disconnection signal to the timing subunit.
A timing subunit 112, connected to the key sensing subunit 111 and the switch unit 12, and configured to start timing when receiving the turn-off signal and stop timing when stopping receiving the turn-off signal;
a signal generating subunit 113 configured to transmit the first signal to the switching unit in a state where a timing length of the timing subunit 112 is greater than or equal to a preset length, and transmit the second signal to the switching unit in a state where the timing length is less than the preset length.
In one embodiment, the timing subunit may generate the first signal or the second signal to be transmitted to the switching unit according to the turn-off signal from the key sensing subunit. By timing the duration of receiving the disconnection signal, the first signal can be transmitted to the switch unit only when the timing duration is longer than the preset duration, namely the duration of pressing the key by the user is longer than the preset duration, so that the problem that the terminal is restarted due to the fact that the disconnection signal is sent out when the key is pressed by misoperation for a short time is effectively avoided.
Optionally, the timing subunit 112 is further configured to start timing when the signal generating subunit 113 transmits the first signal to the switch unit.
In one embodiment, since the transmission of the first signal to the switching unit disconnects the power supply from the PMIC, the timing subunit starts timing when the first signal is transmitted by itself, that is, the duration of disconnection of the power supply from the PMIC is timed.
The signal generating subunit 113 is further configured to send the second signal to the switching unit 12 when the timing subunit 112 times the transmission of the first signal to reach a time threshold.
In one embodiment, when the time for transmitting the first signal reaches a time threshold (the time threshold may be set as required, and may be set to 4 to 6 seconds, for example), that is, when the duration of disconnection between the power supply and the PMIC reaches the time threshold, the signal generating subunit may automatically change the signal transmitted to the switching unit, so that the switching unit is turned on. Therefore, when the time length for pressing the key reaches the sum of the preset time length and the time threshold value, the power-off and power-on of the power management integrated circuit are completed, the restart operation of the terminal is realized, and the user can realize the power-off and restart operations of the terminal by controlling the time length for pressing the key.
Optionally, the timing subunit 112 is further configured to, when the signal generating subunit 113 sends the second signal to the switch unit, time the switch unit to return to the initial state.
In one embodiment, since the second signal is sent to the switch unit according to whether the timing duration reaches the preset threshold, the timing can be returned to the initial state each time the second signal is sent, so that the timing is started from the initial state each time the disconnection signal is received.
In an embodiment, if the timing subunit stops receiving the disconnection signal in a state that the timing duration is less than or equal to the preset duration, it may be determined that the user has stopped pressing the key, that is, the user has cancelled the operation of restarting the terminal.
In this case, the timing subunit may restore the timing to the initial state, so that when the disconnection signal is received again, the timing can be restarted, and it is ensured that the restart operation of the terminal can be triggered each time the user needs to continuously press the key for more than the preset time.
Optionally, the signal generating unit includes a single chip microcomputer.
The singlechip has mature technology and simple structure, and is easy to realize timing and send a first signal and a second signal.
In one embodiment, the timing subunit and the signal generating subunit in the signal generating unit may be independent single-chip microcomputers, respectively, the single-chip microcomputer corresponding to the timing subunit is used for timing, and the single-chip microcomputer corresponding to the signal generating subunit is used for generating the first signal and the second signal.
In one embodiment, the signal generating unit may be a single chip, and is configured to both time and send out the first signal and the second signal.
Fig. 3 is a schematic structural diagram illustrating yet another power supply control apparatus according to an exemplary embodiment. As shown in fig. 3, on the basis of the embodiment shown in fig. 2, the power supply 13 is connected to the single chip microcomputer to supply power to the single chip microcomputer.
According to the embodiment, the power supply in the terminal can be directly used for supplying power to the single chip microcomputer, the power supply does not need to be additionally arranged, and the simplification of the terminal structure is facilitated.
Optionally, the working voltage of the single chip microcomputer is 2.8V to 4.5V.
Because the output voltage of the power supply in part of terminals (such as mobile phones and tablet computers) is between 2.8V and 4.5V, in order to ensure that the single chip microcomputer can normally work under the condition that the power supply supplies power to the single chip microcomputer, the single chip microcomputer with the working voltage of 2.8V to 4.5V can be selected as a signal generation subunit.
Fig. 4 is a schematic structural diagram illustrating yet another power supply control apparatus according to an exemplary embodiment. As shown in fig. 4, in addition to the embodiment shown in fig. 2, the power supply control device further includes:
and one end of the energy conversion unit 15 is connected to the power supply 13, and the other end of the energy conversion unit is connected to the single chip microcomputer and used for converting the voltage signal output by the power supply 13 into a voltage signal corresponding to the working voltage of the single chip microcomputer.
Because some singlechips are difficult to support the operating voltage in the range of 2.8V to 4.5V at present, also some singlechips are difficult to be in stable operation under the condition that the power at terminal is direct to supply power. Therefore, in order to ensure that the power supply in the terminal can supply power to the single chip microcomputer and the single chip microcomputer can stably work, an energy conversion unit (such as a direct current source, namely, DCDC) is arranged between the power supply and the single chip microcomputer, the energy conversion unit converts a voltage signal output by the power supply into a voltage signal corresponding to the working voltage of the single chip microcomputer, and then the converted voltage signal is input into the single chip microcomputer, so that on one hand, the power supply can be ensured to supply power to the single chip microcomputer, and on the other hand, the single chip microcomputer can be ensured to work in a stable state.
Fig. 5 is a schematic structural diagram illustrating still another power supply control device according to an exemplary embodiment. As shown in fig. 5, in the embodiment shown in fig. 1, the switching unit is a P-channel transistor 121, wherein the gates are respectively connected to the signal generating unit 11 and the power supply 13, the source is connected to the power supply 13, and the drain is connected to the power management integrated circuit 14.
In this embodiment, the switching function may be performed by a transistor, wherein the transistor may be a field effect transistor, and further may be a metal-oxide semiconductor field effect transistor (MOSFET).
The transistor has mature technology and simple structure, and is easy to realize switching action through a simple circuit structure. The switching unit may include one or more transistors, and more diversified switching control may be implemented by the plurality of transistors.
Fig. 6 is a schematic structural diagram illustrating still another power supply control device according to an exemplary embodiment. As shown in fig. 6, in addition to the embodiment shown in fig. 5, the gate is also connected to the power supply 13.
In this embodiment, since the transistor is a P-channel transistor, the source and the drain are kept on when the gate receives a high level signal, and the source and the drain are disconnected when the gate receives a low level signal, that is, the first signal generated by the signal generating unit may be a low level signal, and the second signal may be a high level signal.
The grid is electrically connected with the power supply, so that the power supply can input a high-level signal to the grid of the transistor when the second signal generated by the signal generation unit is 0, the conduction of the source and the drain of the transistor is ensured, the signal generation unit is not required to continuously output the high-level second signal when the first signal is not output, and the circuit structure of the signal generation unit is simplified. The turn-on voltage of the transistor is generally between 0.7V and 1.3V, while the voltage of the power supply output is generally higher than 2.8V, so that the transistor can be easily ensured to be in a conducting state. In addition, when the signal generation unit generates the first signal with low level, the grid potential can be pulled down to low level, and at the moment, the grid source voltage of the transistor is lower than the turn-off threshold voltage of the transistor, so that the transistor can be turned off, namely, the electric connection between the source and the drain is disconnected.
And a resistor R can be arranged between the power supply and the grid to limit the current of the signal output by the power supply, so that the transistor is prevented from being damaged due to the overlarge current output by the power supply.
It should be noted that the circuit configurations shown in fig. 5 and 6 can also be applied to the circuit configurations shown in fig. 2 to 4, and the present disclosure is not limited thereto.
FIG. 7 is a schematic flow chart diagram illustrating a power supply control method in accordance with an exemplary embodiment. As shown in fig. 7, the method includes:
in step S71, generating a first signal according to a first operation and a second signal according to a second operation;
in step S72, the power supply and the PMIC are disconnected when the first signal is received, and the power supply and the PMIC are connected when the second signal is received.
FIG. 8 is a schematic flow chart diagram illustrating another power supply control method in accordance with an exemplary embodiment. As shown in fig. 8, on the basis of the embodiment shown in fig. 7, the generating the first signal according to the first operation, and the generating the second signal according to the second operation includes:
in step S711, a signal generated by a key is received and it is determined whether the signal is a designated turn-off signal;
in step S712, the timer is started when the disconnection signal is received, and the timer is stopped when the disconnection signal is stopped;
in step S713, the first signal is generated when the timing length is greater than or equal to a preset length, and the second signal is generated when the timing length is less than the preset length.
With regard to the method in the above-described embodiment, the specific manner in which each step performs an operation has been described in detail in the apparatus embodiment related to the method, and will not be elaborated upon here.
Correspondingly, this disclosure still provides a power supply control device, includes: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: generating a first signal according to a first operation and generating a second signal according to a second operation; and when the first signal is received, disconnecting the power supply from the PMIC, and when the second signal is received, connecting the power supply with the PMIC.
Accordingly, the present disclosure also provides a terminal comprising a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured for execution by the one or more processors to include instructions for: generating a first signal according to a first operation and generating a second signal according to a second operation; and when the first signal is received, disconnecting the power supply from the PMIC, and when the second signal is received, connecting the power supply with the PMIC.
Fig. 9 is a block diagram illustrating an apparatus 900 for power supply control in accordance with an example embodiment. For example, the apparatus 900 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 9, apparatus 900 may include one or more of the following components: processing component 902, memory 904, power component 906, multimedia component 908, audio component 910, input/output (I/O) interface 912, sensor component 914, and communication component 916.
The processing component 902 generally controls overall operation of the device 900, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. Processing component 902 may include one or more processors 920 to execute instructions to perform all or a portion of the steps of the methods described above. Further, processing component 902 can include one or more modules that facilitate interaction between processing component 902 and other components. For example, the processing component 902 can include a multimedia module to facilitate interaction between the multimedia component 908 and the processing component 902.
The memory 904 is configured to store various types of data to support operation at the apparatus 900. Examples of such data include instructions for any application or method operating on device 900, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 904 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 906 provides power to the various components of the device 900. The power components 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 900.
The multimedia component 908 comprises a screen providing an output interface between the device 900 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 908 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 900 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 910 is configured to output and/or input audio signals. For example, audio component 910 includes a Microphone (MIC) configured to receive external audio signals when apparatus 900 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 904 or transmitted via the communication component 916. In some embodiments, audio component 910 also includes a speaker for outputting audio signals.
I/O interface 912 provides an interface between processing component 902 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor component 914 includes one or more sensors for providing status assessment of various aspects of the apparatus 900. For example, sensor assembly 914 may detect an open/closed state of device 900, the relative positioning of components, such as a display and keypad of device 900, the change in position of device 900 or a component of device 900, the presence or absence of user contact with device 900, the orientation or acceleration/deceleration of device 900, and the change in temperature of device 900. The sensor assembly 914 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. The sensor assembly 914 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 914 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 916 is configured to facilitate communications between the apparatus 900 and other devices in a wired or wireless manner. The apparatus 900 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 916 receives a broadcast signal or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 916 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 900 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 904 comprising instructions, executable by the processor 920 of the apparatus 900 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (8)
1. A power supply control device characterized by comprising:
a signal generation unit configured to generate a first signal according to a first operation and a second signal according to a second operation;
the first end of the switch unit is connected with a power supply, the second end of the switch unit is connected with a power management integrated circuit PMIC, the third end of the switch unit is connected with the signal generation unit, the switch unit is configured to disconnect the power supply from the PMIC when receiving the first signal, and conduct the power supply and the PMIC when receiving the second signal, wherein the power management integrated circuit does not have a function of controlling and outputting a power supply signal;
the signal generation unit includes:
the key induction subunit is configured to receive a signal generated by a key and determine whether the signal is a specified disconnection signal;
the timing subunit is connected with the key induction subunit and the switch unit and is configured to start timing when the disconnection signal is received and stop timing when the disconnection signal is stopped being received;
the signal generating subunit is configured to transmit the first signal to the switch unit in a state that a timing duration of the timing subunit is greater than or equal to a preset duration, and transmit the second signal to the switch unit in a state that the timing duration is less than the preset duration.
2. The power supply control device according to claim 1,
the timing subunit further configured to start timing when the signal generation subunit transmits the first signal to the switch unit;
the signal generation subunit is further configured to send the second signal to the switch unit when the timing subunit times the transmission of the first signal to reach a time threshold.
3. The power supply control device according to claim 1 or 2, wherein the timing subunit is further configured to resume an initial state when the signal generation subunit transmits the second signal to the switch unit.
4. The power supply control device according to any one of claims 1 to 2, wherein the signal generation unit includes a single chip microcomputer.
5. The power supply control device of claim 4, wherein the power supply is connected to the single chip microcomputer to supply power to the single chip microcomputer.
6. The power supply control device according to claim 5, wherein the operating voltage of the single chip microcomputer is 2.8V to 4.5V.
7. The power supply control device according to claim 4, characterized by further comprising:
and one end of the energy conversion unit is connected with the power supply, and the other end of the energy conversion unit is connected with the single chip microcomputer and used for converting the voltage signal output by the power supply into a voltage signal corresponding to the working voltage of the single chip microcomputer.
8. The power supply control device according to any one of claims 1 to 2, wherein the switching unit is a P-channel transistor in which gates are connected to the signal generating unit and the power supply, respectively; the source electrode is connected with the power supply, and the drain electrode is connected with the power supply management integrated circuit.
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| CN109361981B (en) * | 2018-11-05 | 2020-07-28 | 全芯科微电子科技(深圳)有限公司 | Bluetooth headset and connection state control method thereof |
| CN111342071B (en) * | 2018-12-18 | 2021-12-21 | 东莞新能德科技有限公司 | Battery pack, electronic device and battery detection system |
| CN111987754A (en) * | 2019-05-24 | 2020-11-24 | 凹凸电子（武汉）有限公司 | Mobile device and control method for supplying power to load |
| CN112367076A (en) * | 2020-11-06 | 2021-02-12 | 维沃移动通信有限公司 | Protection circuit, functional module and electronic equipment |
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| CN102957806B (en) * | 2012-11-16 | 2015-04-08 | 东莞宇龙通信科技有限公司 | Method and device for restarting mobile phone |
| CN103812200B (en) * | 2014-03-10 | 2016-10-05 | 联想(北京)有限公司 | A kind of charging chip, charging system and electronic equipment |
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