KR100950874B1 - System for Controlling a Voltage dynamically and Method of the same - Google Patents

Abstract

The present invention discloses a dynamic voltage control technique. That is, the dynamic voltage control system and its method apply an internal clock information that is changed according to the selection of a plurality of different multimedia application services to a lookup table to supply an externally changed operating power to the external, thereby driving the multimedia application service. This makes it no longer necessary and thus reduces current consumption, improves voltage efficiency, extends the life of the drive system and provides superior performance for high quality.

Dynamic Voltage Control, Lookup Table, Operating Power

Description

System for Controlling a Voltage dynamically and Method of the same

The present invention relates to a dynamic voltage control technology. More particularly, the present invention relates to a multimedia application service by supplying an internal power supply that is changed according to a plurality of different multimedia application service selections to a lookup table and supplying a dynamically changed operation power to the outside. The present invention relates to a dynamic voltage control system and a method thereof, in which an operating power supply for driving the power supply is not provided more than necessary, thereby reducing current consumption, improving voltage efficiency, extending the life of the driving system, and having superior performance for high quality.

In general, a power supply provided to a terminal such as a mobile phone, a smartphone, a PDA, a set-top box, etc. is fixedly provided with an operating power for driving a multimedia application service selected by a user regardless of a plurality of different multimedia application services, or An external circuit is used to provide a variable voltage accordingly.

For example, assuming that the core voltage is 1.2V during the operation of the MP3 multimedia application service, and that the core voltage is 1.5V during the operation of the MPEG4 multimedia application service, 1.5V, the value set as the fixed operating power supply, is an MPEG multimedia application. The optimal voltage to run the service, but because the excess voltage is supplied to drive the MP3 media application service, unnecessary current flows inside.

As another example, when a circuit is added outside the terminal to prevent such leakage of current, a certain amount of current may be prevented from leaking, but the limitation of the scope of application to a plurality of different multimedia application services may be limited. Terminal price increases.

The power supply provided to terminals such as mobile phones, smartphones, PDAs, and set-top boxes is unnecessary when a fixed power supply for operating a multimedia application service selected by a user is provided regardless of a number of different multimedia application services. There is a problem that the current is wasted.

In addition, when a circuit for preventing current leakage is separately provided outside the terminal, it is possible to prevent a certain amount of leakage current, but the limitation of the scope of application for a plurality of different multimedia application services and the additional circuit of the terminal provided outside There is a problem that a price increase occurs.

In order to solve the problems of the prior art of the present invention, a method for dynamically providing the operating power in consideration of different multimedia application services, internal clock information that is changed according to the selection of a plurality of different multimedia application services Is applied to the lookup table to supply the externally changed operating power to the outside so that the operating power for driving the multimedia application service is no longer provided, thereby reducing the current consumption, improving the voltage efficiency, extending the life of the driving system, and This is to have superior performance for high quality.

In order to achieve the above object, the present invention includes the following configuration.

The dynamic voltage control system according to the present invention includes: a voltage management module (200) having a voltage control register and supplying externally the operating power which is dynamically changed to a voltage value corresponding to a set value formed in the voltage control register; And monitoring the internal clock information that changes according to the multimedia application service selection, extracting the voltage control register value by applying the changed internal clock information to the written lookup table, and setting the voltage management module using the extracted voltage control register value. It is configured to include; a multimedia module (100).

In the dynamic voltage control system according to the present invention, the multimedia module preferably substitutes one or more of a CPU clock, a PLL clock, and a BUS clock included in the changed internal clock information into the lookup table.

In the dynamic voltage control system according to the present invention, the multimedia module forms at least one of a CPU clock, a PLL clock, and a BUS clock input to a lookup table into one record group, and then a voltage control register value matched with one record group. It is preferable to extract.

In the dynamic voltage control system according to the present invention, the multimedia module preferably extracts two or more voltage control register values 1: 1 matched with one or more of a CPU clock, a PLL clock, and a BUS clock input to the lookup table.

A dynamic voltage control method according to the present invention includes a first step in which a multimedia module includes a lookup table defining a correspondence between internal clock information and a voltage control register; A second step of the multimedia module monitoring internal clock information that changes according to the multimedia application service selection; Extracting a voltage control register value corresponding to the changed internal clock information as the multimedia module applies the changed internal clock information to the lookup table; A fourth step of setting the voltage control register of the voltage management module by the value of the voltage control register extracted by the multimedia module; And a fifth step of supplying, by the voltage management module, externally the operation power that is dynamically changed to a voltage value corresponding to the setting value of the voltage control register.

The third step of the dynamic voltage control method according to the present invention includes the steps of: the multimedia module assigning at least one of a CPU clock, a PLL clock, and a BUS clock included in the changed internal clock information to a lookup table; And extracting, by the multimedia module, a voltage control register value corresponding to at least one of a CPU clock, a PLL clock, and a BUS clock included in the changed internal clock information.

In a third step of the dynamic voltage control method according to the present invention, the multimedia module comprises: forming at least one of a CPU clock, a PLL clock, and a BUS clock input to a lookup table into one record group; And extracting, by the multimedia module, a voltage control register value matched with one record group.

In a third step of the dynamic voltage control method according to the present invention, the multimedia module extracts two or more voltage control register values 1: 1 matched with one or more of a CPU clock, a PLL clock, and a BUS clock input to a lookup table; It is configured to include.

In accordance with another aspect of the present invention, there is provided a multimedia apparatus comprising: a clock generator configured to generate internal clock information changed according to a multimedia application service selection; A memory unit for storing a look-up table that defines a correspondence between internal clock information and a voltage control register of the voltage management device; A processing unit for monitoring a change in internal clock information and extracting a voltage control register value by applying the changed internal clock information to a lookup table; A controller configured to set a voltage control register of the voltage management device to the extracted voltage control register value; And a power input unit configured to receive an operating power that is dynamically changed to a voltage value matched with a set voltage control register value.

In the multimedia apparatus according to the present invention, the processing unit preferably substitutes one or more of a CPU clock, a PLL clock, and a BUS clock included in the changed internal clock information into the lookup table.

In the multimedia apparatus according to the present invention, the processing unit forms at least one of a CPU clock, a PLL clock, and a BUS clock input to a lookup table into one record group, and then extracts a voltage control register value matched with one record group. It is preferable.

In the multimedia apparatus according to the present invention, the processing unit preferably extracts two or more voltage control register values 1: 1 matched with one or more of a CPU clock, a PLL clock, and a BUS clock input to the lookup table.

According to the present invention described above, an operation power supply for driving a multimedia application service is more than necessary by supplying an externally changed operation power by applying internal clock information that is changed according to a plurality of different multimedia application service selections to a look-up table. There is an advantage in that it is not provided, thereby reducing current consumption, improving voltage efficiency, extending the life of the drive system and superior performance for high quality.

Hereinafter, an embodiment of the present invention will be described in detail. On the other hand, the term "terminal" in the present invention refers to a mobile phone, PDA, smart phone, set-top box, notebook computer, personal computer, and the like collectively, but in the present specification will be described assuming a mobile phone more than a description.

1 is a diagram illustrating a dynamic voltage control system 1000 according to an embodiment of the present invention.

Referring to FIG. 1, the dynamic voltage control system 1000 includes a multimedia module 100 and a voltage management module 200.

That is, the dynamic voltage control system 1000 according to an embodiment of the present invention is extracted according to a user's selection of each multimedia application service (eg, camera shooting function, MP3 music listening function, DMB viewing function) displayed by the terminal. It is a voltage control system that dynamically changes the voltage control resistor value to an operating power supply and supplies it to the outside.

Recently released terminals are provided by integrating various multimedia application services into one. For example, the terminal provides various multimedia application service functions such as a camera shooting function, an MP3 music listening function, or a DMB broadcasting viewing function.

That is, when the terminal is equipped with a predetermined integrated circuit used to implement such a variety of multimedia application services, the operation power of the low value as the integrated circuit is provided with a fixed value of the operating power for driving the various multimedia application services to a fixed value Even though it is a multimedia service that can operate, it is provided with unnecessary high voltage operating power.

 As a result, the integrated circuit mounted in the terminal generates a waste current according to an unnecessary voltage value by applying a high operating power to a multimedia application service that is implemented even with a low operating power.

Accordingly, the dynamic voltage control system 1000 provided in the terminal according to an embodiment of the present invention minimizes waste current by dynamically allocating an optimal operating power that is 1: 1 matched according to a plurality of multimedia application service selections.

Hereinafter, the device module configured in the dynamic voltage control system 1000 according to the present invention will be described in more detail.

First, the multimedia module 100 may include a CPU included in the internal clock information in consideration of generation of internal clock information differently by the clock generator 110 of the multimedia module 100 according to the selection of each multimedia application service during chip operation. Monitor the PLL and BUS clocks.

That is, the multimedia module 100, when each multimedia application service is selected differently by the user, grasps the change in the internal clock information generated from the clock generator 110, and the CPU operating frequency included in the changed internal clock information. The PLL operating frequency and the BUS operating frequency are applied to the written lookup table 121.

Here, the lookup table 121 is provided in the memory unit 120.

The multimedia module 100 extracts a voltage control register value corresponding to a CPU operating frequency, a PLL operating frequency, and a BUS operating frequency included in the internal clock information with reference to the lookup table 121, and then uses the extracted voltage control register value as a voltage. The voltage control register 210 of the management module 200 is set.

Here, the multimedia module 100 may apply one or more of a CPU clock, a PLL clock, and a BUS clock included in the changed internal clock information to the lookup table 121 using one of two methods described below.

That is, the one [1] forms one or more of the CPU clock, the PLL clock, and the BUS clock input to the lookup table 121 into one record group, and then matches one record group. The voltage control register value is extracted, and another [2] is a voltage control register value in which the multimedia module 100 is 1: 1 matched with at least one of a CPU clock, a PLL clock, and a BUS clock input to the lookup table 121. There is more than one extract.

[Table 1] is a look-up table showing an example of the case of [1] and [2] for extracting the voltage control register value in two forms.

In other words, the multimedia module 100 sets the voltage control register 210 of the voltage management module 200 to the voltage control register value extracted through one of two methods.

The voltage management module 200 includes a voltage control register 210, and detects a predetermined operating power that is dynamically changed to a voltage value corresponding to the voltage control register value set by the multimedia module 100, and then detects the detected operating power. Supply to the outside.

As a result, the multimedia module 100 transmits the voltage control register value to the voltage control register 210 provided in the voltage management module 200, so that the voltage management module 200 supplies the operating power corresponding to the voltage control register value. It is detected and supplied to the outside.

2 is a flowchart illustrating a dynamic voltage control method according to an embodiment of the present invention.

Referring to FIG. 2, the dynamic voltage control method operates the extracted voltage control register value according to a user's selection of each multimedia application service (eg, camera photographing function, MP3 music listening function, DMB viewing function) displayed from the terminal. This is the voltage control method to supply to the outside by changing dynamically.

First, the multimedia module 100 includes a lookup table that defines a correspondence relationship between internal clock information and a voltage control register (ST10).

More specifically, the multimedia module 100 monitors internal clock information that changes according to the multimedia application service selection. In monitoring, the CPU clock, the PLL clock, and the BUS clock included in the internal clock information are identified in real time (ST20).

In addition, the multimedia module 100 examines the fluctuation values of the CPU clock, PLL clock, and BUS clock determined by monitoring, and then applies the CPU clock, PLL clock, and BUS clock included in the changed internal clock information to the lookup table. The voltage control register value corresponding to the internal clock information is extracted.

In other words, the multimedia module 100 substitutes one or more of the CPU clock, PLL clock, and BUS clock included in the changed internal clock information into the lookup table, and includes the CPU clock, PLL clock, and the like included in the changed internal clock information. The voltage control register value corresponding to at least one of the BUS clocks is extracted (ST30 and ST40).

Here, the voltage control register value is extracted through either the first embodiment method or the second embodiment method.

That is, in the first exemplary embodiment, the multimedia module 100 forms one or more of a CPU clock, a PLL clock, and a BUS clock input to a lookup table into one record group, and then matches the voltage control register with one record group. In the second embodiment, the multimedia module 100 extracts two or more voltage control register values 1: 1 matched with one or more of a CPU clock, a PLL clock, and a BUS clock input to a lookup table. It is a way.

Subsequently, the multimedia module 100 extracts the voltage control register value through one of two methods and sets the extracted voltage control register value in the voltage control register of the voltage management module 200 (ST50).

That is, as the multimedia module 100 sets the extracted voltage control register value to the voltage control register provided in the voltage management module 200, the voltage management module 200 corresponds to the operating power corresponding to the setting value of the voltage control register. Is detected through the voltage control register, and then the detected operating power is supplied to the outside.

As a result, the multimedia module 100 applies the CPU clock, PLL clock, and BUS clock included in the variable internal clock information to the written lookup table according to the multimedia application service selection, and applies the extracted voltage control register value to the voltage management module. Transfer to a voltage control register provided in (200), the voltage management module 200 supplies the operating power corresponding to the voltage control register value to the outside.

3 is a diagram centering on a multimedia apparatus according to an embodiment of the present invention.

Referring to FIG. 3, the multimedia apparatus 100 includes a clock generator 110, a memory unit 120, a processing unit 130, a control unit 140, and a power input unit 150.

 The clock generator 110 is a kind of time control device that periodically generates a basic signal in order to adjust time for all operations on the device according to the present invention. The clock generator 110 is included in internal clock information that is changed according to user selection of a multimedia application service. Generate the CPU clock, PLL clock, and BUS clock.

The memory unit 120 stores instructions and data electronically so that the processing unit 130 can process the data in a fast manner. The memory unit 120 stores the main part of the operating system, a part (or all) of the application program, and data currently in use. The apparatus stores the lookup table 121 that defines a correspondence relationship between the internal clock information generated from the clock generator 110 and the voltage control register 210 of the voltage management apparatus 200.

The processor 130 monitors a change in the internal clock information and extracts the voltage control register value by applying the changed internal clock information to the lookup table 121.

That is, the processing unit 130 substitutes one or more of the CPU clock, PLL clock, and BUS clock included in the changed internal clock information into the lookup table 121, and thus the CPU clock and PLL input to the lookup table 121. After forming at least one of the clock and the BUS clock into one record group, the voltage control register value matched with one record group is extracted.

In addition to the method of extracting a voltage control register value matched with one record group from one or more of a CPU clock, a PLL clock, and a BUS clock, the processing unit 130 may include a CPU clock and a PLL clock included in the changed internal clock information. By substituting one or more of the BUS clocks into the lookup table 121, two or more voltage control register values 1: 1 matched with one or more of the CPU clock, PLL clock, and BUS clock input to the lookup table 121 are extracted. You may.

The control unit 140 is a device for setting the voltage control register 210 of the voltage management device 200 with the voltage control register value extracted by the processing unit 130, and the processing unit 130 and the voltage management device 200. Signals the register setting relationship formed between them.

The power input unit 150 is a device that receives operating power that is dynamically changed to a voltage value matched with a voltage control register value set in the voltage control register 210 of the voltage management device 200, and is a voltage extracted from the processing unit 130. It receives the core voltage which dynamically changed the control register value or the corresponding operating power supply of I / O (1) to I / O (n).

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated.

1 illustrates a dynamic voltage control system according to an embodiment of the present invention;

2 is a flowchart illustrating a dynamic voltage control method according to an embodiment of the present invention;

3 is a diagram centering on a multimedia apparatus according to an embodiment of the present invention.

Claims (12)

delete delete delete delete A first step in which the multimedia module includes a lookup table defining a correspondence relationship between internal clock information optimized for driving a multimedia application service and a voltage control register; A second step of resetting a preset internal clock so that the multimedia module is optimized for the selected multimedia application service when a selection of one or more multimedia application services is provided among various multimedia application services; A third step of detecting, by the multimedia module, internal clock information that changes according to a driving selection of a multimedia application service; A fourth step of applying, by the multimedia module, the detected internal clock information to the lookup table; A fifth step of extracting, by the multimedia module, a voltage control register value corresponding to the detected internal clock information from the lookup table; A sixth step of setting, by the multimedia module, a voltage control register of the voltage management module to the extracted voltage control register value; And A seventh step of supplying, by the voltage management module, the multimedia power module to the multimedia module by supplying operating power which is dynamically changed to a voltage value corresponding to a setting value of the voltage control register; Dynamic voltage control method comprising a. The method of claim 5, The fourth step of the dynamic voltage control method, And inserting, by the multimedia module, at least one of a CPU clock, a PLL clock, and a BUS clock included in the changed internal clock information into a lookup table. The fifth step, Extracting, by the multimedia module, a voltage control register value corresponding to at least one of a CPU clock, a PLL clock, and a BUS clock included in the changed internal clock information; Dynamic voltage control method characterized in that it comprises a. The method of claim 6, The fourth step of the dynamic voltage control method, And forming, by the multimedia module, one or more of a CPU clock, a PLL clock, and a BUS clock input to the lookup table into one record group. The fifth step, Extracting, by the multimedia module, the voltage control register value matched with the one record group; Dynamic voltage control method characterized in that it comprises a. The method of claim 6, The fifth step of the dynamic voltage control method, And extracting, by the multimedia module, at least two voltage control register values 1: 1 matched with at least one of a CPU clock, a PLL clock, and a BUS clock inputted to the lookup table. Way. delete delete delete delete

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