WO2018036238A1

WO2018036238A1 - Control circuit, method, and computer storage medium

Info

Publication number: WO2018036238A1
Application number: PCT/CN2017/086862
Authority: WO
Inventors: 岳彬
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-08-26
Filing date: 2017-06-01
Publication date: 2018-03-01
Also published as: CN107783580A

Abstract

A control circuit, a method, and a computer storage medium. The control circuit comprises: a load (10), comprising a first load (11), a second load (12), and a system load (13) that is constantly running after a terminal is powered on, the second load (12) requiring more power to run than the first load (11) and the system load (13), and running of the second load (12) causing a voltage jump; a power supply (20) for supplying power to the load (10); and a straightforward power supply circuit (30) and a boost power supply circuit (40) that are connected between the load (10) and the power supply (20).

Description

Control circuit, method and computer storage medium

Cross-reference to related applications

The present application is based on a Chinese patent application filed on Jan. 26, 2016, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present invention relates to power supply technologies in the field of communication technologies, and in particular, to a control circuit, method, and computer storage medium.

Background technique

With the development of communication network technology, user demand is gradually increasing, terminals are becoming more diversified and innovative, and the functions integrated by terminals are becoming more and more novel, and more and more novel, but the power consumption of the whole machine The problem is getting more and more prominent. The opening of some abrupt loads tends to pull very large currents instantaneously, such as Global System for Mobile Communication (GSM), charging treasures, projectors, etc. The battery of some products is connected with the main board by wires. The length of the wires is affected by the structure. The wire will have a large voltage drop at the moment when the sudden load is turned on. The voltage to the main board will be greatly reduced instantaneously. If the voltage after the drop is lower than the voltage. The lowest power-on voltage of the system, the system will shut down, and the battery power at this time has a surplus, affecting the user experience.

In the prior art, in order to avoid such problems, the battery capacity is usually set to a threshold. When the battery capacity is higher than the threshold, the voltage drop caused by the sudden load opening does not cause the terminal to be shut down, and vice versa. If the battery capacity is below this threshold, the abrupt load is not allowed to open. Although this can avoid the problem of terminal shutdown, it can not effectively use the battery power.

Summary of the invention

The embodiment of the invention provides a control circuit, a method and a computer storage medium, so as to solve the problem that the power supply voltage dropped by the terminal load to the shutdown voltage, causing the terminal to shut down and unable to effectively utilize the remaining power.

In a first aspect, an embodiment of the present invention provides a control circuit, where the circuit includes:

a load, the load includes a first load, a second load, and a system load that is always running after the terminal is turned on, and the second load operation requires a larger amount of power than the first load, the system load, and a required amount of power, and The operation of the second load causes a sudden change in voltage;

a power supply that supplies the load;

A through power supply circuit and a boost power supply circuit connected between the load and the power supply.

The system load includes: a processor that controls power supply of the power supply, a signal input end of the processor is connected to the power supply, and a first signal output end of the processor and the through power supply circuit respectively Connected to the boosting power supply circuit, the second signal output end of the processor is connected to the first load and the second load, respectively.

Wherein the processor comprises:

a detecting element for detecting the amount of power of the power supply;

a comparison component connected to the detecting component and comparing a power source of the power source with a preset power threshold, and

A control element coupled to the comparison element that transmits a control signal based on a comparison of the comparison elements.

The signal input end of the detecting component is connected to the power supply, and the signal output end of the control component is connected to the through power supply circuit and the boosting power supply circuit.

The signal output end of the detection element is connected to the signal input end of the comparison element, and the signal output end of the comparison element is connected to the signal input end of the control element.

In a second aspect, an embodiment of the present invention provides a control method, which is applied to a terminal, where the method includes:

After the terminal is powered on, detecting the currently running load;

If the currently running load is a system load or a system load and a first load, the load is powered by the through power supply circuit;

If the currently running load is the system load and the second load or the system load, the first load, and the second load, according to the power of the power supply, the through power supply circuit or the boost power supply circuit is The load is powered.

The method further includes: after detecting the currently running load after the terminal is powered on, the method further includes:

The load is powered by the through power supply circuit.

The step of supplying power to the load through a through power supply circuit or a boost power supply circuit according to the power of the power supply includes:

Comparing the power of the power supply with a preset power threshold;

When the power of the power supply is equal to or smaller than the preset power threshold, the boost power supply circuit supplies power to the load;

When the power of the power supply is greater than the preset power threshold, the load is powered by the through power supply circuit.

The method further includes: after the power supply of the power supply is greater than the preset power threshold, after the power supply is powered by the through power supply circuit, the method further includes:

Detecting a quantity of power remaining in the power supply, and comparing a quantity of power remaining in the power supply with the preset power threshold;

When the remaining power of the power supply is equal to or smaller than the preset power threshold, the through power supply circuit is turned off, and the boost power supply circuit is turned on to supply power to the load.

Wherein, after the terminal is powered on, before detecting the currently running load, the method further include:

Detecting, by the second load, the first power value stored by the power supply when the voltage of the power supply is dropped to the shutdown voltage of the terminal;

Determining that the first power value stored by the power supply is a preset power threshold.

In a third aspect, an embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the control method applied to the terminal according to the embodiment of the present invention. .

The control method of the embodiment of the present invention detects the load condition of the terminal. When the load running on the terminal is only the system load or the system load and the first load, the load is supplied through the through-power supply circuit, and the load at the terminal is When the system load and the second load are the system load, the first load, and the second load, the corresponding power supply circuit is determined according to the power of the power supply, and the power supply voltage caused by the terminal load opening may be resolved to drop to the shutdown voltage, causing the terminal to shut down. And the problem that the power supply cannot be effectively utilized, during the entire operation, no matter how the back-end load changes, the terminal will not be shut down, and the power supply can be effectively utilized, thereby improving the user experience.

DRAWINGS

1 is a schematic diagram 1 of a control circuit according to Embodiment 1 of the present invention;

2 is a second schematic diagram of a control circuit according to Embodiment 1 of the present invention;

3 is a third schematic diagram of a control circuit according to Embodiment 1 of the present invention;

4 is a schematic diagram of a control method provided by Embodiment 2 of the present invention;

FIG. 5 is a schematic diagram of a control method according to Embodiment 3 of the present invention; FIG.

FIG. 6 is a schematic diagram showing a control method provided in Embodiment 4 of the present invention.

detailed description

In order to make the objects, technical solutions and advantages of the present invention more clear, the following will be combined with the accompanying drawings and The invention is described in detail in the embodiments.

Embodiment 1

As shown in FIG. 1, the control circuit provided in Embodiment 1 of the present invention includes:

The load 10 includes a first load 11, a second load 12, and a system load 13 that is always running after the terminal is turned on. The second load 12 requires more power than the first load 11, the system load 13 needs to run, and the second The operation of the load 12 causes a sudden change in voltage;

a power supply 20 that supplies power to the load 10;

A through power supply circuit 30 and a boost power supply circuit 40 are connected between the load 10 and the power supply source 20.

Specifically, the load 10 and the power supply 20 are connected by the through power supply circuit 30 and the boosting power supply circuit 40, and the through power supply circuit 30 or the boost power supply circuit 40 is selected as the load 10 according to the operating state of the load 10 and the power of the power supply 20. Power is supplied.

The load 10 includes a first load 11, a second load 12, and a system load 13 that is always running after the terminal is turned on, wherein the first load 11 belongs to a normal load, the second load 12 belongs to a sudden load, and the system load 13 belongs to a minimum load of the system operation. The amount of power required for the second load 12 to operate is greater than the amount of power required for the first load 11 and the system load 13 to operate, and the operation of the second load 12 causes a sudden change in voltage.

When the currently running load 10 is the system load 13, since the system load 13 is always in the running state after the terminal is turned on, the system load 13 belongs to the minimum load of the system operation, and at this time, the power supply 20 supplies power to the system load 13 through the through power supply circuit 30. .

When the currently running load 10 is the system load 13 and the first load 11, since the first load 11 belongs to the normal load and the system load 13 belongs to the minimum load of the system operation, the power supply 20 passes the through power supply circuit 30 as the first load. 11 and system load 13 are powered.

When the currently running load 10 is the system load 13 and the second load 12, since the second load 12 belongs to a sudden load, it is necessary to determine which power supply is used according to the power of the power supply 20. The road is powered. When the power of the power supply 20 is greater than the preset power threshold, the through power supply circuit 30 can be used to supply power to the second load 12 and the system load 13. When the power of the power supply 20 is less than or equal to the preset power threshold, the power supply can be boosted. Circuit 40 supplies power to second load 12 and system load 13.

It should be noted that the preset power threshold is a value of the power stored by the power supply 20 when the voltage of the power supply 20 drops to the shutdown voltage of the terminal due to the second load 12 being turned on.

When the currently running load 10 is the system load 13, the first load 11 and the second load 12, since the second load 12 belongs to a sudden load, it is necessary to determine which power supply circuit is used for power supply according to the power supply of the power supply 20. When the power of the power supply 20 is greater than the preset power threshold, the through power supply circuit 30 can be used to supply power to the first load 11, the second load 12, and the system load 13. When the power of the power supply 20 is less than or equal to the preset power threshold, The boost supply circuit 40 can be used to power the first load 11, the second load 12, and the system load 13.

As shown in FIG. 2, the system load 13 includes: a processor 130 for controlling the power supply of the power supply 20, the signal input end of the processor 130 is connected to the power supply 20, and the first signal output end of the processor 130 is respectively connected to the through power supply circuit. 30 is coupled to the boost supply circuit 40, and the second signal output of the processor 130 is coupled to the first load 11 and the second load 12, respectively.

The second signal output end of the processor 130 is connected to the first load 11 and the second load 12. Through the connection of the processor 130 with the first load 11 and the second load 12, the processor 130 can implement the first load 11 and the first load. The control of the second load 12 is turned on or off.

When the second load 12 is not turned on, the first load 11 and the system load 13 are powered by the through power supply circuit 30. When the second load 12 is turned on, it is necessary to detect the power of the power supply 20 to determine the type of the power supply circuit. Specifically, the processor 130 is connected to the power supply 20 to obtain the power of the power supply 20. When the second load 12 is turned on, the type of the power supply circuit that supplies the load 10 is determined according to the power of the power supply 20. When the power of the power supply 20 is greater than the preset power threshold, the first signal output terminal can be connected to the through power supply circuit 30, so that the power supply 20 The power supply circuit 20 is used to supply power to the load 10. When the power supply 20 is less than or equal to the preset power threshold, the boosting power supply circuit 40 can be connected to the power supply 20 by using the boost power supply circuit 40. The load 10 is powered.

It should be noted that the system load 13 further includes: a memory chip 131 and a power management chip 132, wherein the processor 130, the memory chip 131, and the power management chip 132 are always in an operating state after the terminal is turned on.

As shown in FIG. 3, the processor 130 includes: a detecting component 1301 for detecting the power of the power supply 20; and a comparing component 1302 connected to the detecting component 1301 for comparing the power of the power supply 20 with a preset power threshold. And a control element 1303 connected to the comparison element 1302 that transmits a control signal based on the comparison result of the comparison element 1302.

The signal input end of the detecting element 1301 is connected to the power supply 20, and the signal output of the control element 1303 is connected to the through-power supply circuit 30 and the boost supply circuit 40. The signal output of the detection element 1301 is coupled to the signal input of the comparison element 1302, and the signal output of the comparison element 1302 is coupled to the signal input of the control element 1303.

The processor 130 can be powered by the through power supply circuit 30 or the boost power supply circuit 40. That is, after the through power supply circuit 30 or the boost power supply circuit 40 is connected, the processor 130 can be powered. The processor 130 can be used to control the operation of the first load 11 and the second load 12 to control the opening or closing of the through power supply circuit 30 or the boost power supply circuit 40.

Specifically, the detecting component 1301 is connected to the power supply 20, and the power of the power supply 20 can be detected. In the case where the second load 12 is turned on, it is necessary to detect the amount of power supplied to the power source 20, thereby determining the type of the power supply circuit.

After detecting the power of the power supply 20, the detecting component 1301 sends the obtained power value of the power supply 20 to the comparing component 1302, and the comparing component 1302 compares the power of the power supply 20 with a preset power threshold, and obtains a comparison result. Sending the comparison result to the control component 1303, and after obtaining the comparison result, the control component 1303 generates a corresponding control according to the comparison result. The signal is sent to the through power supply circuit 30 or the boost power supply circuit 40 such that the power supply 20 supplies power to the load 10 through the through power supply circuit 30 or the boost supply circuit 40. When the power of the power supply 20 is greater than the preset power threshold, the control component 1303 generates a first control signal, and sends the first control signal to the through power supply circuit 30, so that the through power supply circuit 30 is connected, and the power supply 20 passes through the through power supply circuit 30. The load 10 is powered.

When the power of the power supply 20 is less than or equal to the preset power threshold, the control component 1303 generates a second control signal, and sends the second control signal to the boosting power supply circuit 40, so that the boosting power supply circuit 40 is connected, and the power supply 20 passes through the liter. The voltage supply circuit 40 supplies power to the load 10. The load 10 at this time includes at least the second load 12 and the system load 13.

Wherein, when the currently running load 10 is the first load 11 and the system load 13, the direct power supply circuit 30 is directly connected, and the power supply 20 supplies power to the first load 11 and the system load 13 through the through power supply circuit 30.

When the currently running load 10 is the second load 12 and the system load 13, the detecting component 1301 detects the amount of power stored in the power supply 20, and transmits the obtained detection result to the comparison element 1302, which compares the storage power supply 20 with the storage. The power quantity is equal to the preset power threshold value, and the comparison result is sent to the control component 1303. When the power stored by the power supply 20 is greater than the preset power threshold, the control component 1303 controls the through power supply circuit 30 to communicate, and the power supply 20 passes through the through. The power supply circuit 30 supplies power to the second load 12 and the system load 13. When the power stored by the power supply 20 is less than or equal to the preset power threshold, the control component 1303 controls the boost power supply circuit 40 to communicate, and the power supply 20 supplies power to the second load 12 and the system load 13 through the boost power supply circuit 40.

When the currently running load 10 is the first load 11, the second load 12, and the system load 13, the detecting component 1301 detects the amount of power stored in the power supply 20, and transmits the obtained detection result to the comparing component 1302, and the comparing component 1302 compares The amount of power stored by the power supply 20 and the preset power threshold, and the comparison result is sent to the control component 1303, when the power supply 20 stores When the amount of power is greater than the preset power threshold, the control element 1303 controls the through power supply circuit 30 to communicate, and the power supply 20 supplies power to the first load 11, the second load 12, and the system load 13 through the through power supply circuit 30. When the power stored by the power supply 20 is less than or equal to the preset power threshold, the control component 1303 controls the boost power supply circuit 40 to communicate. The power supply 20 passes through the boost power supply circuit 40 as the first load 11, the second load 12, and the system load. 13 power supply.

It should be noted that the connection between the processor 130 and the through power supply circuit 30 and the boost power supply circuit 40 is a bidirectional connection.

The control element 1303 in the processor 130 can control the turn-on of the through power supply circuit 30 or the boost power supply circuit 40, and the corresponding through power supply circuit 30 or boost power supply circuit 40 can supply power to the processor 130.

In the first embodiment of the present invention, by detecting the load condition of the terminal operation, when the load running on the terminal is only the system load or the system load and the first load, the load is supplied through the through-power supply circuit, and the load running at the terminal is the system load and When the second load is the system load, the first load, and the second load, the corresponding power supply circuit is determined according to the power of the power supply, and the power supply voltage caused by the terminal load opening may be resolved to fall to the shutdown voltage, causing the terminal to be shut down and unable to be effective. With the problem of the power supply power, during the entire operation, no matter how the back-end load changes, the terminal will not be shut down, and the power supply can be effectively utilized, thereby improving the user experience.

Embodiment 2

The control method provided in the second embodiment of the present invention is applied to a terminal, where the control circuit includes: a load, where the load includes a first load, a second load, and a system load that is always running after the terminal is turned on, and the second load requires a larger amount of power than the first load. A load, the system load runs the required power, and the operation of the second load causes a sudden change in voltage; the power supply for the load; and the through-power supply circuit and the boost supply circuit connected between the load and the power supply, as shown in FIG. As shown, the method includes:

Step 401: After the terminal is powered on, detect the currently running load.

The load of the terminal includes a first load, a second load, and a system load, where the system is negative. It is always running after the terminal is turned on to ensure the normal operation of the terminal. The opening of the second load tends to pull a very large current in an instant. Since the power supply battery is connected to the main board through the wire, the wire will have a large voltage drop at the moment when the second load is turned on, and the voltage to the main board will be greatly reduced instantaneously. The voltage is lower than the lowest startup voltage of the terminal, and the terminal will shut down.

Therefore, after the terminal is powered on, it is necessary to check the status of the currently running load. The system load is in the running state after the terminal is turned on, which can ensure the normal operation of the terminal. The power supply of the terminal can supply power to the system load through the through power supply circuit.

When detecting the current running load condition, it is actually detecting whether the currently running load is only the system load, or the system load and the first load, or the system load and the second load, or the system load, the first load, and the Two loads. If the system load or the system load and the first load are currently running, step 402 is performed. If the currently running load is the system load and the second load, or the system load, the first load, and the second load, then Step 403 needs to be performed.

Step 402: If the currently running load is a system load or a system load and a first load, power is supplied to the load through the through power supply circuit.

When it is detected that the current running load is only the system load, since the system load is the minimum load for the terminal to work normally, the power supply through the through power supply circuit can be performed at this time. If the current running load is the system load and the first load, since the first load is a normal load, the opening of the first load does not instantaneously draw a very large current, and at this time, the power supply through the through power supply circuit is the first load and System load power.

Step 403: If the currently running load is the system load and the second load or the system load, the first load, and the second load, according to the power of the power supply, the load is powered by the through power supply circuit or the boost power supply circuit.

Specifically, it is required to detect whether the currently running load includes the second load. If the currently running load includes the second load, the current situation can be divided into two cases: the currently running load is the system. The load and the second load, or the currently running load, are the system load, the first load, and the second load.

If the current running load is the system load and the second load, you need to check the current stored power of the power supply. After obtaining the current stored power of the power supply, the current stored power of the power supply and the preset power threshold are performed. In comparison, when the current stored power of the power supply is greater than the preset power threshold, the power supply supplies power to the system load and the second load through the through power supply circuit. When the power stored by the power supply is equal to or less than the preset power threshold, the power supply supplies power to the system load and the second load through the boost power supply circuit.

When detecting that the currently running load is the system load, the first load, and the second load, it is necessary to check the current stored power of the power supply, and after obtaining the current stored power of the power supply, the current stored power of the power supply. Compared with the preset power threshold, when the power stored by the power supply is greater than the preset power threshold, the power supply supplies power to the system load, the first load, and the second load through the through power supply circuit. When the power stored by the power supply is equal to or less than the preset power threshold, the power supply supplies power to the system load, the first load, and the second load through the boost power supply circuit.

In the second embodiment of the present invention, by detecting the load condition of the terminal operation, when the load running on the terminal is only the system load or the system load and the first load, the load is supplied through the through-power supply circuit, and the load running at the terminal is the system load and When the second load is the system load, the first load, and the second load, the corresponding power supply circuit is determined according to the power of the power supply, and the power supply voltage caused by the terminal load opening may be resolved to fall to the shutdown voltage, causing the terminal to be shut down and unable to be effective. Taking advantage of the power supply power, during the entire operation, no matter how the back-end load changes, the terminal will not be shut down, and the power supply can be effectively utilized, which improves the user experience in two aspects.

The embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the control method applied to the terminal according to the embodiment of the present invention.

Embodiment 3

The control method provided in Embodiment 3 of the present invention is applied to a terminal, wherein the control circuit includes: a load, where the load includes a first load, a second load, and a system load that is always running after the terminal is turned on, and the second load requires a larger amount of power than the first load. A load, the system load runs the required amount of power, and the operation of the second load causes a sudden voltage change; the power supply for the load; and the through-power supply circuit and the boost supply circuit connected between the load and the power supply, as shown in FIG. 5. As shown, the method includes:

Step 501: After the terminal is powered on, detecting a first power value stored by the power supply when the voltage of the power supply is dropped to the shutdown voltage of the terminal due to the second load being turned on.

After the terminal is powered on, it is necessary to detect the first power value stored by the power supply when the voltage of the power supply drops to the shutdown voltage of the terminal. The reason for the voltage drop of the power supply is that the second load is turned on, and the opening of the second load tends to pull a very large current instantaneously. Since the power supply battery is connected to the main board through the wire, the wire will be greatly pressed at the moment when the second load is turned on. Down, the voltage to the motherboard will drop dramatically in an instant. And the first power value stored by the power supply and the capacity of the power supply battery, and the length of the wire connecting the battery to the main board and the second load are related.

Step 502: Determine that the first power value stored by the power supply is a preset power threshold.

After detecting that the voltage of the power supply drops to the shutdown voltage of the terminal and the first power value stored by the power supply, determining that the first power value stored by the power supply is a preset power threshold.

Step 503: Supply power to the load through the through power supply circuit.

After the terminal is powered on, it is necessary to ensure the normal operation of the terminal. At this time, the power supply of the terminal can supply power to the currently running load through the through power supply circuit. The currently running load may be a system load, which may be a system load and a first load, or a system load and a second load, or may be a system load, a first load, and a second load. Since the opening of the second load causes a sudden voltage change, if the current running load includes the second load, the power of the power supply will be consumed faster and the voltage will be greatly reduced. Therefore, step 504 needs to be performed on the premise that the terminal is in normal operation.

Step 504: Detect the currently running load.

After the terminal is powered on, and after the power supply to the load is ensured by the through-power supply circuit to ensure the normal operation of the terminal, the currently running load needs to be detected. When detecting the current running load condition, it is actually detecting whether the currently running load is only the system load, or the system load and the first load, or the system load and the second load, or the system load, the first load, and the Two loads. If the system load or the system load and the first load are currently running, step 505 is performed. If the currently running load is the system load and the second load, or the system load, the first load, and the second load, then Step 506 needs to be performed.

Step 505: If the currently running load is a system load or a system load and a first load, power is supplied to the load through the through power supply circuit.

When it is detected that the current running load is only the system load, since the system load is the minimum load for the terminal to work normally, the power supply through the through power supply circuit can be performed at this time. If the current running load is the system load and the first load, since the first load is a normal load such as a resistor, the opening of the first load does not instantaneously draw a very large current. At this time, the power supply only needs to pass through the through power supply circuit. The first load can be supplied.

Step 506: If the currently running load is the system load and the second load or the system load, the first load, and the second load, according to the power of the power supply, the load is powered by the through power supply circuit or the boost power supply circuit.

If the currently running load is the system load and the second load, or the currently running load is the system load, the first load, and the second load, since the second load belongs to GSM, charging treasure, projector, etc., it is often pulled instantaneously. Take a very large current load. At this time, it is necessary to detect the amount of power stored in the power supply. According to the amount of power stored in the power supply, determine whether the direct power supply circuit or the boost power supply circuit is used to supply power to the load.

Wherein, according to the power of the power supply, when the power is supplied through the through power supply circuit or the boost power supply circuit, the specific determination method is as follows:

Compare the power of the power supply with the preset power threshold;

When the power of the power supply is equal to or less than the preset power threshold, the power is supplied to the load through the boost power supply circuit;

When the power of the power supply is greater than the preset power threshold, the load is supplied through the through power supply circuit.

First, it is necessary to compare the detected power supply power with the previously determined preset power threshold, and determine which power supply circuit is used as the system load and the second according to the comparison between the power stored by the power supply and the preset power threshold. The load is either powered by the system load, the first load, and the second load.

When the power of the power supply is equal to or less than the preset power threshold, in order to avoid the terminal shutdown, the boost power supply circuit needs to be started to supply the system load and the second load or for the system load, the first load and the second load.

When the power of the power supply is greater than the preset power threshold, the terminal shutdown problem does not occur at this time, and the through power supply circuit may be used to supply power to the system load and the second load or to the system load, the first load, and the second load.

Detecting the remaining power of the power supply, and comparing the remaining power of the power supply with a preset power threshold;

When the remaining power of the power supply is equal to or less than the preset power threshold, the straight-through power supply circuit is turned off, and the boost power supply circuit is turned on to supply power to the load.

Here, in order to avoid the problem that the power supply of the power supply is lower than the preset power threshold, the terminal preferably turns off the power remaining in the power supply in real time; however, in practical applications, In order to ensure that the terminal is currently performing the program smoothly, the terminal can periodically detect the power supply. Specifically, the terminal can complete high frequency detection of the power supply periodically or non-periodically.

After the straight-through power supply circuit is used to supply the system load and the second load, the load will consume the power of the power supply, especially the second load, in order to avoid the terminal power-off when the power consumption of the power supply is lower than the preset power threshold. The problem. It is necessary to detect the remaining amount of power in the power supply in real time, and compare the remaining amount of the power supply obtained by the detection with the preset power threshold. When the remaining power of the power supply is equal to or less than the preset power threshold, the straight-through power supply circuit needs to be turned off, and the boost power supply circuit is turned on to supply power to the system load and the second load.

After the straight-through power supply circuit is used to supply the system load, the first load, and the second load, since the load consumes the power of the power supply, in order to avoid the problem that the power supply of the power supply is lower than the preset power threshold, the terminal is shut down. . It is necessary to detect the remaining amount of power in the power supply in real time, and compare the remaining amount of the power supply obtained by the detection with the preset power threshold. When the remaining power of the power supply is equal to or less than the preset power threshold, the straight-through power supply circuit needs to be turned off, and the boost power supply circuit is turned on to supply power to the system load, the first load, and the second load.

In the third embodiment of the present invention, by detecting the load condition of the terminal operation, when the load running on the terminal is only the system load or the system load and the first load, the load is supplied through the through-power supply circuit, and the load running at the terminal is the system load and When the second load is the system load, the first load, and the second load, the corresponding power supply circuit is determined according to the power of the power supply, and the power supply voltage caused by the terminal load opening may be resolved to fall to the shutdown voltage, causing the terminal to be shut down and unable to be effective. With the problem of the power supply power, during the entire operation, no matter how the back-end load changes, the terminal will not be shut down, and the power supply can be effectively utilized, thereby improving the user experience.

Embodiment 4

The control method provided in Embodiment 4 of the present invention is applied to a terminal, where the control circuit includes: The load includes the first load, the second load, and the system load that is always running after the terminal is turned on. The second load requires more power than the first load, the system load needs to run, and the second load operates to cause a sudden change in voltage. a power supply for supplying power to the load; and a through-power supply circuit and a boost supply circuit connected between the load and the power supply, as shown in FIG. 6, the method includes:

Step 601: The terminal is powered on.

The terminal is first turned on, and step 602 is performed after the terminal is powered on.

Step 602: The terminal uses a default through power supply circuit to supply power to the system load and the first load.

Wherein, the first load is a normal load, and the opening of the first load does not instantaneously draw a very large current. The system load is the load that is always running after the terminal is powered on, which can ensure the normal operation of the terminal. At this time, the power supply of the terminal can supply power to the currently running system load and the first load through the through power supply circuit.

After the step 602 is performed, the default straight-through power supply circuit is used to supply the system load and the first load, and step 603 needs to be performed.

Step 603: Determine whether the second load is turned on.

The second load belongs to a load that GSM, charging treasure, projector, etc., when it is turned on, tends to pull a very large current instantaneously. Since the power supply battery is connected to the main board through the wire, the wire will have a large voltage drop at the moment when the second load is turned on, and the voltage to the main board will be greatly reduced instantaneously. If the voltage after the drop is lower than the lowest starting voltage of the terminal, the terminal will be turned off. Therefore, the opening or not of the second load has a great influence on the operation of the terminal.

If the second load is already on, step 604 needs to be performed. If the second load is not turned on, step 602 needs to be continued.

Step 604: Detect the current remaining power of the power supply.

If the second load is already turned on, the second load will often pull a very large current in an instant, and the voltage of the main board will be greatly reduced instantaneously. In order to avoid the voltage after the drop is lower than the lowest starting voltage of the terminal, the terminal Generate a shutdown problem. Need to power supply current The remaining power is detected, and step 605 is performed after the detection is completed.

Step 605: Compare the current remaining power of the power supply with a preset power threshold.

The preset power threshold is detected in advance, and after the terminal is powered on, detecting the first power value stored by the power supply when the voltage of the power supply is dropped to the shutdown voltage of the terminal due to the second load being turned on, determining that the first power is The preset power threshold.

When the power remaining in the power supply is equal to or lower than the preset power threshold, step 606 is performed. If the current power remaining of the power supply is higher than the preset power threshold, step 607 is performed.

Step 606: When the current remaining power of the power supply is equal to or lower than the preset power threshold, the through power supply circuit is turned off, and the boost power supply circuit is used to supply the system load, the first load, and the second load of the back end.

When the current remaining power of the power supply is equal to or lower than the preset power threshold, in order to avoid the problem of terminal shutdown, the direct power supply circuit needs to be turned off, the boost power supply circuit is turned on, and the power supply is powered by the boost power supply circuit. In order to ensure the normal operation of the mobile terminal.

Step 607: When the power of the power supply is greater than the preset power threshold, the power is supplied to the load through the through power supply circuit.

When the power of the power supply is greater than the preset power threshold, there is no problem of the terminal being shut down at this time. The straight-through power supply circuit can still be used, and the power supply supplies power to the load through the through-power supply circuit.

It should be noted that after the second load is turned on and the through-power supply circuit is used to supply power to the load, step 604 needs to be continued. That is, it is necessary to detect the remaining power of the power supply, and compare the remaining power of the power supply with the preset power threshold; when the remaining power of the power supply is greater than the preset power threshold, continue to use the through-power supply circuit to supply power to the load until When the remaining power of the power supply is equal to or less than the preset power threshold, the straight-through power supply circuit is turned off, and the boost power supply circuit is turned on to supply power to the load.

In the fourth embodiment of the present invention, after the terminal is powered on and the default straight-through power supply circuit is used to supply power to the system load and the first load, it is determined whether the second load is turned on, when the second load is not turned on, or the second load is turned on and the power supply is powered. When the power is greater than the preset power threshold, the straight-through power supply circuit continues to supply power to the load. If the second load is turned on but the power supply is equal to or lower than the preset power threshold, the boost power supply circuit supplies power to the load. It can solve the problem that the power supply voltage dropped to the shutdown voltage caused by the terminal load opening, causing the terminal to shut down and unable to effectively utilize the power supply. In the whole operation process, no matter how the back-end load changes, the terminal will not be shut down, which can be effective. Utilize the power supply to increase the user experience.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

These computer program instructions can also be stored in a bootable computer or other programmable data processing The apparatus is readable in a computer readable memory in a particular manner such that instructions stored in the computer readable memory produce an article of manufacture comprising instruction means implemented in one or more flows and/or block diagrams of the flowchart The function specified in the box or in multiple boxes.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. Within the scope of protection of the invention.

Industrial applicability

Claims

A control circuit, the control circuit comprising:

a load, the load includes a first load, a second load, and a system load that is always running after the terminal is turned on, and the second load operation requires a larger amount of power than the first load, the system load, and a required amount of power, and The operation of the second load causes a sudden change in voltage;

a power supply that supplies the load;

A through power supply circuit and a boost power supply circuit connected between the load and the power supply.
The control circuit according to claim 1, wherein said system load comprises: a processor that controls power supply of said power supply, said signal input of said processor being coupled to said power supply, said first of said processor The signal output ends are respectively connected to the through power supply circuit and the boost power supply circuit, and the second signal output end of the processor is respectively connected to the first load and the second load.
The control circuit of claim 2 wherein said processor comprises:

a detecting element for detecting the amount of power of the power supply;

a comparison component connected to the detecting component and comparing a power source of the power source with a preset power threshold, and

A control element coupled to the comparison element that transmits a control signal based on a comparison of the comparison elements.
The control circuit according to claim 3, wherein a signal input end of said detecting element is coupled to said power supply, and a signal output of said control element is coupled to said through power supply circuit and said boost supply circuit.
The control circuit according to claim 3, wherein a signal output of said detecting element is coupled to a signal input of said comparing element, and a signal output of said comparing element is coupled to a signal input of said control element.
A control method is applied to a terminal, and the method includes:

After the terminal is powered on, detecting the currently running load;

If the currently running load is a system load or a system load and a first load, the load is powered by the through power supply circuit;

If the currently running load is the system load and the second load or the system load, the first load, and the second load, according to the power of the power supply, the through power supply circuit or the boost power supply circuit is The load is powered.
The method of claim 6, wherein the method further comprises: after detecting the currently running load after the terminal is powered on, the method further comprising:

The load is powered by the through power supply circuit.
The method according to claim 6, wherein the step of supplying power to the load through a through power supply circuit or a boost power supply circuit according to the power amount of the power supply source comprises:

Comparing the power of the power supply with a preset power threshold;

When the power of the power supply is equal to or smaller than the preset power threshold, the boost power supply circuit supplies power to the load;

When the power of the power supply is greater than the preset power threshold, the load is powered by the through power supply circuit.
The method of claim 8, wherein the method further comprises: after the power supply of the power supply is greater than the preset power threshold, after the power supply is powered by the through power supply circuit, the method further comprises:

Detecting a quantity of power remaining in the power supply, and comparing a quantity of power remaining in the power supply with the preset power threshold;

When the remaining power of the power supply is equal to or smaller than the preset power threshold, the through power supply circuit is turned off, and the boost power supply circuit is turned on to supply power to the load.
The method of claim 6 wherein after the terminal is powered on, the method is checked Before measuring the currently running load, the method further includes:

Detecting, by the second load, the first power value stored by the power supply when the voltage of the power supply is dropped to the shutdown voltage of the terminal;

Determining that the first power value stored by the power supply is a preset power threshold.
A computer storage medium having stored therein executable instructions for performing the control method of any one of claims 6 to 10.