CN101719964B - Mobile terminal and Power management method thereof - Google Patents

Abstract

The invention relates to the technical field of wireless communication, and provides a mobile terminal power management method. The mobile terminal includes a power management chip for managing power, and the power management chip is provided with a crystal power supply for controlling the output of the power supply. The power management method includes the following steps: controlling the crystal power supply according to the control signal to turn it on or Turn off; the crystal power supply is turned on or off in response to the control, and generates a corresponding prompt signal; the output of the power supply is controlled according to the prompt signal, so that the system is in a working state or a deep sleep state. The invention also provides a power management device of a mobile terminal and a mobile terminal provided with the power management device. The invention simplifies the control flow of the power supply of the mobile terminal, and improves the control efficiency of the mobile terminal system between the normal working state and the deep sleep state.

Description

Mobile terminal power management method and mobile terminal

technical field

The present invention relates to the technical field of wireless communication, and more specifically, to a mobile terminal power management method and a mobile terminal.

Background technique

With the popularization and increasingly powerful functions of mobile terminals (such as mobile phones, PDAs, etc.), the mobile terminals have more and more external devices, and the requirements for power management are also getting higher and higher. The current terminal power management scheme needs to control the power management chip through the baseband chip to turn off the relevant power supply or change the power supply voltage in turn before entering deep sleep; The chip controls the power management chip to turn on the relevant power supply or change the power supply voltage in turn. This solution needs to wake up the baseband chip first and then control the power management chip through the baseband chip when the terminal transitions from deep sleep to normal working state. The switching speed is slow. ,low efficiency.

Contents of the invention

The main purpose of the present invention is to provide a terminal power control method for the defects of the prior art, so as to simplify the control process of the power supply of the mobile terminal in the prior art and improve the efficiency of switching between the normal working state and the deep sleep state of the mobile terminal system .

The mobile terminal of the present invention includes a power management chip for controlling the power supply in the system, wherein the power management chip is provided with a crystal power supply for controlling the output of the power supply, and the power management method includes the following steps:

Control the crystal power supply to turn it on or off;

The crystal power supply is turned on or off in response to the control, and a corresponding prompt signal is generated;

The output of the power supply is controlled according to the prompt signal, so that the system is in a working state or a deep sleep state.

Preferably, the step of controlling the output of the power supply according to the prompt signal so that the system is in a working state or a deep sleep state includes:

receiving a prompt signal that the crystal power supply is turned on, and controlling the output of the power supply in the system according to the prompt signal, so that the system is in a working state; and

Receive the prompt signal that the crystal power supply is off, and control the output of the power supply in the system according to the close prompt signal, so that the system is in a deep sleep state.

The present invention also provides a mobile terminal power management device, the mobile terminal is provided with a baseband processor and a power supply for supplying electric energy to the system, the mobile terminal power management device includes a power management chip and a crystal power control module, wherein,

The crystal power supply control module is used to control the crystal power supply to turn it on or off;

The power management chip is provided with:

The crystal power supply, in response to the control of the crystal power supply control module, is turned on or off and generates a corresponding prompt signal and transmits it to the power supply output control module;

The power output control module is used to control the output of the power supply according to the prompt signal of the crystal power supply, so that the system is in a working state or a deep sleep state.

Preferably, the power output control module includes:

The first power supply register is used to receive a prompt signal that the crystal power supply is turned on, and control the output of the power supply in the system according to the prompt signal to enable the system to be in a working state; and

The second power supply register is used to receive the prompt signal that the crystal power supply is turned off, and process the output of the power supply in the system according to the shutdown prompt signal, so that the system is in a deep sleep state.

Preferably, the above-mentioned baseband processor may include a control word setting module, configured to set the control words of the first power register and the second power register, so that the first power register and the second power register can control the power supply .

Preferably, the crystal power supply control module includes a general programmable input and output port GPIO, which is used to control the crystal power supply to be turned on or off according to the level control signal sent by the baseband processor.

The present invention also provides a mobile terminal, including the above mobile terminal power management device.

As can be seen from the above, the power management chip in the present invention is provided with a crystal power supply control module, which can control the opening or closing of the crystal power supply; there are also a first power supply register and a second power supply register, which can be generated according to the opening or closing of the crystal power supply. The prompt signal controls the power supply to turn on/off, or changes the output voltage of the power supply, so that the system can be in a normal working state or a deep sleep state only by turning on or off the crystal power supply, which simplifies the control process of the mobile terminal power supply and improves The efficiency of switching between the normal working state and the deep sleep state of the mobile terminal system is improved.

Description of drawings

FIG. 1 is a schematic structural diagram of a mobile terminal power management device in an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a power supply output control module in an example of the above-mentioned embodiment;

FIG. 3 is a schematic structural diagram of a mobile terminal in an embodiment of the present invention;

FIG. 4 is a flow chart of a mobile terminal power management method in another embodiment of the present invention;

Fig. 5 is a specific flow chart of the steps of controlling the power supply according to the prompt signal to make the system in the working state or the deep sleep state in an example of the above-mentioned embodiment.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

FIG. 1 shows a schematic structural diagram of a mobile terminal power management device 10 of the present invention. As shown in FIG. 1 , the power management device 10 includes a power management chip 11 and a crystal power control module 12 . The power management chip 11 is provided with a crystal power supply 111 and a power output control module 112 .

The baseband processor 13 is a control chip of the mobile terminal, which can read, write and send various control signals, such as high-level signals or low-level signals. The power supply can be the power supply of the external equipment inside the mobile terminal, and can also include the power supply to ensure the normal operation of the internal chips. The power management chip 11 is used to control the working state of the plurality of power supplies; the crystal power supply 111 is arranged in the power management chip 11, and can prompt the power management chip 11 to control the working state of the power supply for the power management chip 11; The power control module 12 may be a switch for controlling the on or off state of the crystal power supply 111 . In one embodiment, when the crystal power supply control module 12 turns on the crystal power supply 111, the crystal power supply 111 can generate a start-up prompt signal and output it to the power supply output control module 112. After receiving the start-up prompt signal, the power supply output control module 112 turns on each Group the power supply or change the output voltage of part of the power supply, so that the system is in a normal working state; when the crystal power supply control module 12 closes the crystal power supply 111, the crystal power supply 111 can generate a shutdown prompt signal and output it to the power supply output control module 112, and the power supply output control The module 112 can shut down part of the power supply or change the output voltage of part of the power supply, so that the system is in a deep sleep state.

In one embodiment, the crystal power supply control module 12 can be a general purpose programmable input and output port (General Purpose Input Output, GPIO), and the GPIO can be controlled according to the control signal (such as a high level signal or a low power level signal) sent by the baseband processor 13. flat signal), turn on or turn off the crystal power supply 111 to make it generate a corresponding prompt signal.

As shown in FIG. 2 , the power output control module 112 may include a first power register 113 and a second power register 114 . Wherein, the first power supply register 113 is connected with the crystal power supply 111, receives the start prompt signal of the crystal power supply 111, and turns on each power supply or changes the output voltage of some power supply according to the start prompt signal, so that the system is in the working state. The second power supply register 114 is connected to the crystal power supply 111, receives the shutdown prompt signal of the crystal power supply 111, and turns off part of the power supply or changes the output voltage of part of the power supply according to the shutdown prompt signal, so that the system is in a deep sleep state.

In one embodiment, the first power register 113 can control all power supplies, including on/off and output voltage of each group of power supplies. After the whole system is powered on, the power management chip 11 works under the first power register 113 by default, and the system is in the working state; the second power register 114 can also control all power supplies, including the on/off and output voltage of each group of power supplies. . The two groups of registers can be set separately through the baseband processor 13 after the system is powered on, and the setting content can include the on/off of each power supply and the output voltage.

The prompt signal generated by the crystal power supply 111 can also be a high-level signal or a low-level signal, and the power output control module 112 can control the output of the power supply according to the high-level signal or the low-level signal. For example, the control of the first power register 113 and the second power register 114 can be realized through a control word, and the control word can be set through the control word setting module 131 in the baseband processor 13 shown in FIG. 1 . In one embodiment, the baseband processor 13 can set the first power register 113 and the second power register 114 to have different control words according to the level when the crystal power supply 111 is turned on or off, so as to control the opening and closing of each power supply. Turn off or change the output voltage of the power supply to realize the control between the working/deep sleep state of the system. The process of turning on, off or changing the output voltage of the power supply by the control word is well known to those skilled in the art and will not be repeated here.

When the system is in the working state and needs to switch to the deep sleep state, the crystal power supply 111 can be turned off by the crystal power supply control module 12, and the crystal power supply 111 can generate a prompt signal that the crystal power supply 111 is closed to the power supply output control module 112, so that the first A power supply register 113 closes part of the power supply and closes or reduces the output voltage of the power supply, so that the system switches to the deep sleep state; when the system needs to switch from the deep sleep state to the working state, the crystal power supply can be turned on through the crystal power supply control module 12 111 , the crystal power supply 111 outputs a turn-on prompt signal to the power output control module 112 , so that the second power supply register 114 turns on the turned-off power supply or raises the power supply voltage, and the system enters the working state.

The present invention enables the system to be flexibly controlled between the normal working state and the deep sleep state by controlling the crystal power supply 111 to be turned on or off, simplifies the control program of the power supply, and improves the control efficiency.

The invention also provides a mobile terminal. As shown in FIG. 3 , the mobile terminal at least includes the above-mentioned baseband processor 13 and power management device 10 . In one embodiment, the power management device 10 includes at least the above-mentioned power management chip 11 and a crystal power control module 12 . The power management chip 11 is provided with a crystal power supply 111 and a power output control module 112 . Wherein, the crystal power supply control module 12 can control the crystal power supply 111 to be turned on or off according to the control signal sent by the baseband processor 13 . For example, in one embodiment, the crystal power supply control module 12 can be a GPIO, which can receive a high level or low level signal, and the baseband processor 13 can write a high level or low level signal and send it to the crystal power supply control module 12 in order to control the opening or closing of the crystal power supply 111. The crystal power supply 111 can respond to the control of the crystal power supply control module 12, turn it on or off, and generate a corresponding prompt signal to prompt the power management chip 11, so that the power output control module 112 can control the power supply and make the system in a working state or a deep sleep state. The crystal power supply control module 12 is connected with the power management chip 11 and is used to control the on or off state of the crystal power supply 111 and make it generate a prompt signal.

FIG. 4 shows the flow of the mobile terminal power management method of the present invention. The method flow is based on the above-mentioned power management device 10 of the mobile terminal. As shown in Figure 4, the power management method includes the following specific steps:

Step S10, controlling the crystal power supply to turn it on or off according to the control signal;

Step S20, the crystal power supply is turned on or off in response to the control, and a corresponding prompt signal is generated;

Step S30, controlling the output of the power supply according to the prompt signal, so that the system is in a working state or a deep sleep state.

In step S10, the crystal power supply 111 can be controlled to turn on by the crystal power supply control module 12, so that it generates a prompt signal to be turned on and output to the power management chip 11. Closed alert signal;

In step S20, when the power output control module 112 in the power management chip 11 receives the prompt signal that the crystal power supply 111 is turned on, it can control the power management chip 11 to perform certain operations on the power supply, for example, turn on the power supply or change the power supply The output voltage, etc., so that the power supply is in a normal working state.

When the power output control module 112 receives the shutdown prompt signal from the crystal power supply 111, it will shut down part of the power supply or change the output voltage of part of the power supply according to the signal, so that the control power supply is in a deep sleep state.

Specifically, as shown in FIG. 5, the above step S20 may include:

Step S21, setting the control word of the first power register 113 and the second power register 114, so as to manage the power for the power management chip;

Step S22, the first power register 113 receives the prompt signal that the crystal power supply 111 is turned on, and turns on the power supply according to the prompt signal, so that the system is in a working state;

Step S23 , the second power register 114 receives the prompt signal that the crystal power supply 111 is turned off, and turns off part of the power supply or changes the output voltage of part of the power supply according to the shutdown prompt signal, so that the system is in a deep sleep state.

In an embodiment, the above-mentioned method flow can be: when the system is powered on, after each power supply is started, the power management chip 11 works, the crystal power supply 111 is turned on, and the system clock is provided to the system. At this time, the system is working in a normal working state, The power management chip 11 works under the default value of the first power supply register 113. At this time, the relevant control words of the first power supply register 113 and the second power supply register 114 can be set by the baseband processor 13, and the state of each group of power supply (such as Each group of power supply on / off and output voltage, etc.).

When the control system needs to enter the deep sleep state from the normal state, the crystal power supply 111 can be turned off by controlling the crystal power supply control module 12. At this time, the power management chip 11 receives the prompt signal that the crystal power supply 11 is turned off, and controls to the second power supply register 114. Working, the output voltage of the power supply is low or most of them are off, and the system enters the power saving mode.

When it is necessary to control the power supply to return to the normal working state from the deep sleep state, the crystal power supply 111 can be turned on by controlling the crystal power supply module 12. At this time, the power management chip 11 receives the prompt signal that the crystal power supply 11 is turned on, and controls to the first power supply register. 113, the system returns to the normal working state.

When the system needs to continuously switch between the deep sleep state and the normal working state, it only needs to control the opening or closing of the crystal power supply 111, and the power management chip 11 can be controlled between the first power register 113 and the second power register 114 , so as to achieve the purpose of power saving and fast control.

To sum up, when the system is started, the power management chip 11 provides each group of power according to the default value of the first power register 113. After the system is fully started, the first power register 113 and the second power register 114 can be respectively Setting; when the system needs to be controlled between the deep sleep state and the normal working state, it only needs to turn on/off the crystal power supply 111 through the crystal power supply control module 12 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. the method for managing power supply of a portable terminal; Said portable terminal comprises the power management chip that is used for the control system power supply; It is characterized in that; Said power management chip is provided with crystal power supply and the power supply output control module that is used to control power supply output, and said portable terminal also comprises the crystal energy supply control module, and said method for managing power supply may further comprise the steps:

Crystal energy supply control module control crystal power supply makes its unlatching or closes;

Crystal power supply response control is opened or is closed, and generation corresponding prompt signal is sent to the power supply output control module;

The power supply output control module makes the in running order or deep sleep of system according to the output of said cue control power supply.

2. method for managing power supply according to claim 1 is characterized in that, said power supply output control module is according to the output of cue control power supply, makes in the step of the in running order or deep sleep of system to comprise:

The cue of receiving crystal electric power starting, and, make system in running order according to the output of opening power supply in the cue control system; With

The cue of receiving crystal power-off, and, make system be in deep sleep according to the output of closing the power supply in the cue control system.

3. portable terminal electric power controller, said portable terminal are provided with BBP and to system the power supply of electric energy are provided, and it is characterized in that said portable terminal electric power controller comprises power management chip and crystal energy supply control module, wherein,

Said crystal energy supply control module is used to control the crystal power supply, makes its unlatching or closes;

Said power management chip is provided with:

The crystal power supply, the control of response crystal energy supply control module is opened or is closed and produce the corresponding prompt signal and passes to the power supply output control module;

The power supply output control module is used for the output according to the cue control power supply of said crystal power supply, makes the in running order or deep sleep of system.

4. portable terminal electric power controller according to claim 3 is characterized in that, said power supply output control module comprises:

The first power supply register is used for the cue of receiving crystal electric power starting, and according to this output of opening power supply in the cue control system, makes system in running order; With

The second source register is used for the cue of receiving crystal power-off, and according to this output of closing power supply in the cue control system, makes system be in deep sleep.

5. portable terminal electric power controller according to claim 4; It is characterized in that; Said BBP comprises that control word is provided with module; Be used for the control word of said first power supply register and second source register is provided with, control for the first power supply register or with second source register pair power supply.

6. portable terminal according to claim 3 is characterized in that, said crystal energy supply control module comprises the general programmable input/output port, is used for the level controling signal that sends according to BBP, the unlatching of control crystal power supply or close.

7. portable terminal, the power supply that is provided with BBP and to system electric energy is provided is characterized in that; Also be provided with the electric power controller that power supply is managed; This electric power controller comprises power management chip and crystal energy supply control module, wherein

Said crystal energy supply control module is used to control the crystal power supply, makes its unlatching or closes;

Said power management chip is provided with:

The crystal power supply, the control of response crystal energy supply control module is opened or is closed and produce the corresponding prompt signal and passes to the power supply output control module;

The power supply output control module is used for the output according to the cue control power supply of said crystal power supply, makes the in running order or deep sleep of system.

8. portable terminal according to claim 7 is characterized in that, said power supply output control module comprises:

The first power supply register is used for the cue of receiving crystal electric power starting, and according to this output of opening the power supply in the cue control system, makes system in running order; With

The second source register is used for the cue of receiving crystal power-off, and according to this output of closing the power supply in the cue control system, makes system be in deep sleep.

9. portable terminal according to claim 8; It is characterized in that; Said BBP is provided with control word module is set; Be used for the control word of said first power supply register and second source register is provided with, control for the first power supply register and second source register pair power supply.

10. portable terminal according to claim 7 is characterized in that, said crystal energy supply control module comprises the general programmable input/output port, is used for the level controling signal that sends according to BBP, the unlatching of control crystal power supply or close.

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