KR101673586B1 - Apparatus and Method for controlling an input power - Google Patents

Abstract

The present invention relates to power control according to a power management mode of a display device.

In the power saving mode of the power management mode, power supply to the system is all turned off based on the organic operation between the system configurations. Therefore, power supply to the power blocks in the system is all turned off, so that the consumed power becomes substantially zero, such as when the power plug is physically disconnected.

Power, Sleep, Standby, Switch

Description

[0001] APPARATUS AND METHOD FOR CONTROLLING AN INPUT POWER [0002]

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a block diagram of one embodiment showing a display system or apparatus.

FIG. 2 is a block diagram illustrating an operation of the power supply unit, the control unit, the processing unit, and the like configured in the display system according to each power management mode

FIG. 3 is a block diagram of another embodiment showing operation according to each power management mode on a power supply unit, a control unit, a processing unit,

FIG. 4 is a flowchart showing that the user sets a desired power management mode in a state in which the system is operated (Power ON)

5 is a flowchart showing that the user sets a desired power management mode in a state in which the display system is not operated (Power OFF)

FIG. 6 is an operational flowchart related to FIG.

7 is a flowchart of the operation related to FIG.

The present invention relates to an apparatus and method for performing power management control of an apparatus using a power source, and more particularly, to a power management system and a power management method, Power control for simple implementation based on organic operation between system configurations.

More specifically, the power management mode of the display device is changed into a standby mode state or a power saving mode state (power saving mode) based on a user command (remote controller, etc.) Saving Mode Status), and the power input control according to each of the set power management modes is implemented based on the organic operation between the system configurations.

In addition, the power operation status is changed from a standby mode state or a power saving mode state to a power on status (standby state) based on the stored power management mode based on a user command (contact switch depression, etc.) For easy recovery.

The power management mode of the present invention is set to a plurality of states (power saving mode, standby mode) as an example. The dual power saving mode state is a power management mode in which power management control is performed more strongly than the standby mode state. .

In addition, as a type of the power management mode, 1) power supply to the main power supply block for power supply to the image processing unit and / or the conversion unit configured for the output operation of the display device is turned off and only the user command Or an input command by key input) to the standby power supply block for power supply to the control unit,

 2) a power saving mode state in which power supply to both the main power supply block and the standby power supply block is turned off. That is, the power saving mode state is a power management mode in which the power consumed by the control unit in the standby mode state is also prevented, and generates substantially the same effect (power off state) as that of pulling the power plug of the display device by physical action.

The related art related to the present invention will be described below.

In a power management mode of a general device or system, if the signal input to the system is not detected for a predetermined time, the system is automatically set to the Standby Mode.

However, standby power for the minimum system operation is consumed even in the standby mode.

In addition, when the system is powered off through a user command or the like, the system is powered off only in the standby mode. In this case, standby power for the minimum system operation to recognize the user command is consumed.

Therefore, if the standby power is to be prevented from being consumed, a power cord (generally an AC power cord or a DC power cord) input to the system must be extracted as a physical action.

The present invention aims at substantially zeroing power consumed in the power saving mode among a plurality of power management modes.

The present invention aims at setting the power saving mode of the power management mode based on a user command (remote controller command, etc.) without unplugging the power cord as a physical behavior.

The present invention aims to set the power saving mode state by selecting whether to power off the apparatus in standby mode or power saving mode when powering off the apparatus through a user command or the like.

The present invention is characterized in that the power saving mode is set for a predetermined time, for example, 2 hours in a standby mode by a general power off, when the image processing unit and / or the conversion unit configured for the output operation of the apparatus are not operated. do. For example, the control unit controls the first and second switches of the switch unit to turn off the power input to the system.

According to the present invention, each power source supplied to a power supply block (a standby power supply block, a main power supply block) for selectively operating each configuration in the system is controlled by a control unit and a switch 2 switches) in accordance with an organic operation.

The first switch and the second switch are operably coupled to each other and can be integrated into one switch.

The present invention can be applied to a power management mode stored (e.g., when power is turned on or when the system is to be operated from the power saving mode), when the system is powered off (including power saving mode) Standby mode, and power saving mode) so that the system is operated.

According to an aspect of the present invention, there is provided a power control apparatus comprising: a control unit; A user command input unit to which a user command for setting a power management mode is input; A power supply unit provided with power according to each power management mode set based on the user command; And a switch unit for turning off the input of all the power sources input to the power source unit under the control of the control unit when a predetermined power management mode is set among the plurality of power management modes; Lt; / RTI >

The present invention also provides a system in which a plurality of power management modes are implemented, comprising: a control unit; A power supply unit including a first power management mode in which power is supplied only to a configuration including the control unit and a power supply block related to a second power management mode in which power is not supplied to a configuration including the control unit; And a second power management mode in which when the user command is not inputted or the system processing unit is not operated for a predetermined time in the first power management mode, A switch for turning off the input of the switch; Lt; / RTI >

According to another aspect of the present invention, there is provided a power control method including: inputting a command for setting a power management mode; And controlling the switch unit to turn off all the input power of the system when the control unit receives the command.

According to another aspect of the present invention, there is provided a power control method including: turning off a system power; Setting a standby mode based on the off operation; And controlling the switch unit to turn off all the input power sources of the system when the user command is not inputted or the system processing unit is not operated for a predetermined time.

Hereinafter, a power control apparatus and method according to an embodiment of the present invention will be described with reference to the accompanying drawings.

First, the term used in the present invention selects the general term that is widely used at present, but in some cases, the term selected arbitrarily by the applicant, which describes the operation and meaning in detail in the description of the relevant invention, It is to be understood that the present invention should be grasped as an action / meaning of a term that is not a name of the present invention.

For example, AC off is a state in which the power supply to the display device is substantially completely turned off (power off) by turning off all input power to the power supply (standby power supply block and main power supply block) And corresponds to the power saving mode in the description of the present invention.

On the other hand, the DC off corresponds to the standby mode in the description of the present invention, which means that power supply to the main power supply block is off and power is supplied only to the standby power supply block.

The power off mode corresponds to the power management mode in the description of the present invention.

The power off status indicates a state in which power is not normally supplied to the display device in the description of the present invention.

The power on status indicates a state in which power is normally supplied to the display device in the description of the present invention.

Also, AC ON indicates that the display device is powered by the second switch.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Lt; / RTI >

1 is an exemplary block diagram 100 illustrating a display system or apparatus.

As shown in FIG. 1, a user command input unit 101 for inputting a user command using a remote controller, which is a type of a remote device, for setting a plurality of power management modes, a receiver 103 for receiving a user command through the remote controller A control unit 111 for receiving a user command through an input unit 107 configured in the system, a switch unit 105 for on / off of an input power source, (Main power supply block, Standby power supply block) that supplies a power corresponding to the power supply mode, the power supply mode, or the standby mode, And a control unit 111 for controlling the power supply unit and / or the power supply unit.

A conversion and image processing unit 113 for performing conversion / processing of data received via wire / wireless, a power management mode to be operated in the system or a power management mode stored in the memory unit 117, And an output unit 115 for outputting at least one processed data.

In this case, the user command may be a command using a remote controller, or a predetermined key configured in the system.

In the present invention, a display device, a display system, an apparatus or a system have the same meaning. Also, since the feature of the present invention is not limited to only the display device, the expression such a system or device is used. That is, the features of the present invention are applicable to all other devices that manage power.

FIG. 2 is a block diagram 200 showing an operation according to each power management mode in a power supply unit, a control unit, an image processing unit, and the like configured in the display system.

2, an input power source, for example, an AC power source is input through a switch unit 205 through a power cord, and the power source is generally connected to a standby (Standby) state of the power source unit 209 via a converter (not shown) ) Power supply block 209a and / or the main power supply block 209b.

The main power supply block 209b is a power supply block for applying power to the image processor 213 and the Standby power supply block 209a is a power supply block for applying power to the microprocessor 211 .

The supply of power to the image processing unit by the main power supply block and the supply of power to the control unit through the standby power supply block are only one example. The practical reason for distinguishing each block as described above is that each power management mode The present invention intends to indicate that the power of the corresponding block (for example, standby power block) is also turned off to prevent the minimum power consumed in the system.

FIG. 2 shows a remote control 201 or a local key 207 for inputting a user command. If the user inputs a user command to keep the system in standby mode among a plurality of power management modes (standby mode, power saving mode) The power of the main power supply block 209b applied to the image processing unit 213 or the like is turned off under the control of the control unit 211. [

In this case, the standby power input to the control unit is consumed to recognize a user command or the like.

3 is a block diagram 300 illustrating another exemplary embodiment in which the switch unit, the power unit, the control unit, and the image processing unit configured in the display system are operated according to each power management mode.

3, the most distinctive feature is that the switch unit 305 is controlled by the control unit 311 based on the power management mode of the system to be set and restored And the power input through the power cord is controlled.

3, an input power source, for example, an AC power source is input through a switch unit 305 through a power cord, and the power source is connected to the power source unit 309 via a switch (not shown) (Standby) power supply block 309a and the main power supply block 309b.

The main power supply block 309b is a power supply block for applying power to the image processor 313 and the Standby power supply block 309a is a power supply block for applying power to the microprocessor 311 Block, and the present invention is not limited thereto. The technical idea of the present invention is that there are a plurality of power management modes and different power sources are supplied according to each power management mode.

In addition, a remote controller 301 or a local key 307 for inputting a user command is configured. If the user desires to turn off the power, if a standby mode is selected among a plurality of power management modes (standby mode, power saving mode) The power supply of the main power supply block 309b applied to the processing unit 313 is turned off under the control of the control unit 311.

 When the power saving mode is selected among a plurality of power management modes (standby mode, power saving mode) when the user intends to turn off the power, the main power supply block 309b and Standby The power supply block 309a is also turned off.

If the apparatus is not operated for a predetermined period of time, for example, two hours, even if the power off of the system is set to the standby mode as described above, for example, if no user command is input or an output operation is performed The control unit determines whether the image processing unit and / or the conversion unit is configured to be changed and set to the power saving mode.

In this case, the control unit controls the first and second switches of the switch unit based on the result of checking the preset time and the counter unit (not shown) stored in advance in the memory unit so that the power input to the system is turned off.

As another example, even if a user command is not input for a predetermined time, the standby mode may be changed / set to the power saving mode.

In the case where the system is turned off in the standby mode as described above, or when the user command is not input within a predetermined time, or when the configuration for the output operation of the system is not operated, the operation in which the switch is controlled to operate in the power saving mode , Can be performed automatically or only when set by the user.

The predetermined time can be set / changed variously as follows.

1) Set the device at the time of manufacture.

2) It can be set or changed by the user, and a GUI can be used for the setting.

3) It can be executed on the server connected to the device.

In the meantime, the operation of turning off only the power supply of the main power supply block is substantially the same as that of the existing implementation operation, and a detailed description thereof will be omitted.

Hereinafter, the operation for implementing the power saving mode of the present invention will be described.

First, the configuration and operation of the switch unit 305 in Fig. 3 will be described.

As shown in the figure, the switch unit includes a first switch 305a. The power supply output value of the standby power supply block 309a is applied to the first switch and the first switch is turned on / off under the control of the controller 311 to control the output to High / Low.

As an example of the first switch means, a FET (Filed Effect Transistor) is used, but it is not limited thereto and other means can be used.

The output value of the power supplied from the standby power supply block is controlled based on the ON / OFF operation of the first switch, and the second switch unit 305b is controlled based on the controlled output value.

That is, as the output of the power supplied from the standby power supply block is controlled on / off by the control of the control unit on the basis of the on / off operation of the first switch, the switch unit 305b is inputted to the display device Power is ON / OFF controlled.

The second switch unit 305b includes a relay 305b1 operated based on the output value of the standby power supply block and the control unit, and a switch 305b2 controlled ON / OFF based on the operation of the relay.

When the power supplied to the display device is controlled to be OFF by the operation of the switch 305b2 controlled to be OFF in response to the OFF operation of the relay, the display device enters the power saving mode. At this time, the standby power supply block 309a All of the input power supplied to the main power supply block 309b is turned off.

The second switch, for example, the relay and the switch 305b2, can be replaced by other switching means operating based on the electromagnetic induction action.

Meanwhile, when power is applied to the system while the display device is in the POWER OFF status or the power saving mode based on the operation of the first and second switches, the third switch 305c, which is in operative contact with the system, The power is temporarily supplied to the display device.

Therefore, when the power is supplied again to the controller 311, the switch unit 305 is operated according to the operation of the controller 311, and power is supplied according to the power management mode.

That is, as one example, when the display device is in the power saving mode, the display device is temporarily powered on by the operation of pressing the third switch, and the switch portion is operated based on the power management mode stored in the memory and the operation of the control portion Power is supplied.

In this case, the first switch and the second switch are operatively connected to each other and may be integrated into one switch unit.

The operation of the switch unit 305 will be further described.

When the user presses the remote controller 301 (or may press the local key 307) to implement the power saving mode in the power management mode, the microcontroller 311, which is the control unit, controls the first switch 305a, (That is, to be turned off) the current to be inputted to the transistor 305b1.

Accordingly, when the operation of the relay (including the electromagnet) is turned off (i.e., the magnet is not generated), the switch 305b2 configured to operate with the relay is turned off.

Therefore, since the AC power is not applied to the display device, no power is supplied to the STANDBY power supply block 309a and the MAIN power supply block 309b in the system.

On the other hand, when the user presses the AC on switch 305c, which is a contact switch, with the display device in the power saving mode or power off status, the AC power is temporarily supplied to the standby supply block 309a and the microcontroller control section 311 And controls the switch unit 305 including the relay 305b1.

Therefore, due to the electromagnet operation of the relay, the switch 305b2 configured to operate organically with the relay 305b1 is turned on by the magnetic force, so that normal power is supplied through the second switch 305b.

The contact switch 305c is momentarily turned on and off.

The current input to the electromagnet of the relay uses the power of the STANDBY power supply block because power is supplied to the power relay even in the standby state.

The operation of the POWER RELAY 305b1 is controlled on / off based on the FET operation of the first switch 305a. SWITCHING operation of the switch 305b2 is enabled only when current is supplied to the POWER RELAY. The operation of the POWER RELAY determines the contact with the switch 305b2 depending on whether current is supplied to the coil inside the relay.

The operation of the switch unit 305 will be described in detail.

BY power supply block is supplied to the source side (not shown) of the FET 305a. At this time, if the FET is in the ON state (the signal of the control portion is applied), the drain side ) Is supplied with the same power as the source, and the power is supplied to the coil of the power relay. Then, the SWITCH 305b1 contact of the POWER RELAY is turned ON, and the input power is supplied to each of the power supply blocks 309a and 309b of the display device.

On the other hand, if the FET is OFF (no control signal is applied), the STAND-BY power delivered to the source of the FET will not be transmitted to the drain, so no current can flow through the coil of the POWER RELAY. Therefore, the switch 305b2 of the power relay is turned OFF, and the input power is not supplied to the power supply blocks 309a and 309b of the display device.

As described above, if the user desires to set the system to the power save mode, the user inputs a user command (select the power saving mode) by using a remote controller or the like, the control unit controls the signal output to the FET, The switch 305b2 is turned off because a current is not inputted to the relay, so that the input power is not supplied to the power supply blocks 309a and 309b.

Therefore, the system can be set to the power saving mode based on the organic operation between the system configurations, and the system can be restored to the power management mode desired by the user using the above operation. That is, it is easy to implement and restore the power management mode through software operation and hardware configuration, rather than physical behavior (such as unplugging the power cord).

The operation of the switch unit and the control unit may be applied to a case where the system is changed to the power saving mode based on a predetermined time or control of the user when the system is set in the standby mode.

 The operation of the configuration of FIG. 3 will be described in detail.

      The configuration of the switch unit 305 includes a contact switch 305c and a power relay 305b1.

The contact switch is a configuration for temporarily supplying power to turn on the display device in the power saving mode.

Thereafter, the micro controller unit 311 controls the switch unit 305.

The power relay 305b1 is a configuration which is responsible for the core function of the present invention, and is configured to enable power saving mode setting by the remote controller. That is, the power relay is turned on when the display device is turned on, and the micro controller is controlled to turn off the power relay when power saving mode operation is required. In this case, the control power of the power relay applies the power of the standby power supply block to the FET device so that there is no problem in operation.

In addition, the micro controller unit 311 displays the power management mode through the output unit (115 in FIG. 1) to determine whether the user is set to the standby mode or the power saving mode when receiving the power management mode command through the remote controller, .

That is, when the standby mode is executed, the main power is turned off only, and when the power saving mode is performed, the main power off control and the power relay are turned off

Control. The reason why the main power is first turned off in the power saving mode is to stabilize the system.

4 is a flowchart 400 showing that the user sets a desired power management mode (standby mode, power saving mode) in a state where the system is operated (Power ON).

4, when the user presses the power off button or the power management mode button through the remote controller in a state that the display device is turned on (S 401), at least two power off modes are displayed on the output portion of the display device 403), and selects one of a standby mode or a power saving mode corresponding to the two or more modes. (S405).

In the above description, the case where the user presses the power-off button or the power management mode button by using the remote controller has been described. However, as described above, there may be two buttons indicating each mode or only one button And in each case is a pre-operation for setting the desired power management mode state by the user.

Also, the user can directly input a desired power management mode.

In the selection step, if the standby mode is selected, the controller stores the standby mode state in an EEPROM (see FIG. 1) as a memory (S407) and controls only the main power of the power source unit to be off (S409). At this time, the display device enters the standby state (standby power consumption state).

On the other hand, when the user selects the power saving mode, the controller stores the state of the power saving mode in the EEPROM, which is the memory, and performs the control to the power saving mode by turning off the power off of the power part and the power relay of the switch part. At this time, the display device enters the state in which the power plug is unplugged (standby power zero state) (S 411, 413, 415)

The reason for turning off the main power of the power source before controlling the power relay to be off is to stabilize the system. That is, when the relay is turned off, since the power input to the system suddenly turns off, a relatively large amount of power is used to protect the components that are operated based on the main power source being used.

5 is a flowchart 500 showing that the user sets a desired power management mode (standby mode, power saving mode) in a state in which the display system is not operated (Power OFF).

5, when the user presses the power on button through the contact switch, which is the third switch 305c of FIG. 3, the standby power supply block 309a of the display device operates, and Standby Power is supplied to the controller 311 through the power supply block. (S 501, 503, 505).

The controller reads the information of the EEPROM memory in which last power off mode (last power management mode) is stored, and performs the operation according to the last power off mode. (S507, 509).

Last power off If the mode is in standby mode,

So that the display device can enter the standby state by only performing the AC on control (the power is controlled by the second switch in FIG. 3). (S 511)

The user can then turn on the display device using the remote control.

On the other hand, if the last power off mode is the power saving mode,

AC on control so that the main power can be turned on.

Control to enable the display device to turn on automatically. (S 513, 515)

FIG. 6 is an operation flowchart 600 relating to FIG. 4, and FIG. 7 is an operation flowchart 700 relating to FIG. 6 and 7 illustrate the operation of the switch unit for turning off / on the input power input to the system.

As shown in Fig. 6, in the state that power is being input, a user command for power management mode setting is input. (S601).

When the user command is input, a preset power management mode (standby mode, power saving mode) is displayed. (S603).

In the displayed power management mode, the user selects a desired power management mode. (S605, 607).

When the user selects the standby mode, as shown in FIG. 3, the control unit 311 sets the input of the main power source to be off. (S609).

On the other hand, when the user selects the power saving mode (S611), the control unit controls the first switch unit 305a to turn off. (S613).

Therefore, the power supply output value of the standby power supply block 309a applied to the first switch means is not applied to the relay 305b1, and the power supply input switch 305b2 is turned off. (S 615).

Thus, no power is supplied to the standby power supply block and the main power supply block. (S 617).

As shown in Fig. 7, in the state in which no power source is being input, the power source switch 305c predetermined for temporarily inputting the power source is pressed. (S701).

Power is supplied to the standby mode power supply block 309a and the control unit 311 based on the operation of the switch. (S703).

The power of the standby power supply block 309a is applied to the first switch means 305a. (S705).

The first switch means 305a is controlled based on the control of the control unit which is supplied with power from the standby power supply block unit so that the output value of the standby power supply block is inputted to the relay 305b1 of the second switch, The input power switch 305b2 is turned ON based on the operation of the current flowing through the relay so that the power is supplied to the power supply unit 309. [ (S 707, 709, 711).

As described above, the present invention relates to an apparatus and method for performing power management control of an apparatus using a power source, and more particularly, to a power management system and a power management method, The present invention relates to power control for simply implementing the setting and recovery of the system configuration according to the organic operation between the system configurations.

The power management mode of the display device may be a Standby Mode state or a Saving mode state according to a user command (remote controller, etc.) in a state where power is normally supplied to the display device (Power ON) Mode Status), and the power input control according to the set power management mode is implemented based on the organic operation between the system configurations.

In addition, the power operation status is changed from a standby mode state or a power saving mode state to a power on status (standby state) based on the stored power management mode based on a user command (contact switch depression, etc.) For easy recovery.

The power management mode of the present invention is set to a plurality of states (power saving mode, standby mode) as an example, and the dual power saving mode state is a power management mode in which power management control is performed more strongly than the standby mode state.

1) The power supply to the main power supply block for power supply to the image processing unit and the conversion unit of the display apparatus is turned off and only the power supply to the main power supply block is turned off. A standby mode in which power is supplied to only the standby power supply block for applying power to the control unit so as to recognize the standby mode,

 2) a power saving mode state in which power supply to both the main power supply block and the standby power supply block is turned off. That is, the power saving mode state is a state of the power management mode, which prevents the power consumed by the control unit in the standby mode state, and generates substantially the same effect as extracting the power plug of the display device as a physical action.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed and will become apparent to persons skilled in the art upon a reading of this disclosure. Embodiments of the present invention may be implemented. The scope of the present invention is defined by the appended claims, and all differences within the scope of the claims are to be construed as being included in the present invention.

Power consumption can be prevented by easily setting a power saving mode capable of zeroing power consumption based on the organic operation between the remote controller, the control unit, and the switch unit of the present invention.

For example, if you go to sleep after watching TV at night time, most users do not go into sleep mode, only perform standby mode and go to sleep.

Also, when you are away from home for a long time,

Standby power (including power in a state where power is input to the control unit or the like to recognize a user command or the like) is consumed.

In addition, when the present invention is applied, when there is no user command for a predetermined period of time when the general power-off is performed (corresponding to the standby mode) or when the main configuration of the system (such as the image processing unit) / Can be set.

Thus, when applying the invention, the user can conveniently enter sleep mode

The power consumption can be zero, and the life of the display device can be extended.

Claims (30)

In a system in which a plurality of power management modes are implemented, A control unit; A user command input unit to which a user command for setting a power management mode is input; A power supply unit provided with power according to each power management mode set based on the user command; And And a switch unit for turning off the input of all the power sources inputted to the power source unit under the control of the control unit when a predetermined power management mode is set among the plurality of power source management modes The power supply unit includes a standby power supply block that applies power to a control unit that recognizes a command input by a user The switch unit includes a first switch for controlling output of a power supply output value applied from the standby power supply block under the control of the control unit And a second switch whose output value is controlled by the standby power supply block based on the on / off operation of the first switch and is controlled based on the controlled first output value, Wherein the first switch and the second switch are operatively connected. delete The power control apparatus according to claim 1, wherein the power supply unit includes a main power supply block for applying power to an image processing unit for processing an image. delete delete 2. The apparatus according to claim 1, wherein, in response to an on / off control of the first switch, the output of the power supplied from the standby power supply block is controlled to be High / Low, And the input power is controlled to be ON / OFF. The power supply control device according to claim 6, wherein the second switch includes a relay operated based on an output value of the standby power supply block, and a switch that is ON / OFF-controlled based on an operation of the relay. 8. The power supply control apparatus according to claim 7, wherein, when the power supplied to the apparatus is controlled to be OFF based on the operation of the switch controlled to be OFF by the operation of the relay, the apparatus enters the power saving mode in the power management mode, And the input power supplied to the main power supply block are all turned off. The power supply control apparatus according to claim 8, wherein, in the case where the apparatus is set to the power saving mode, a third switch operatively connected to the apparatus is controlled to turn on the power supply. The display device according to claim 9, wherein when the display device is in the power saving mode, power is temporarily supplied to the display device based on the operation of the third switch, and at least one of the first or second switches is operated, Is supplied to the power supply unit. 9. The display device according to claim 8, wherein when the display device is temporarily powered on based on an operation of the switch determined by the user while the display device is in the power save mode, And power is supplied to a power supply block corresponding to a power management mode stored in the memory. 7. The power supply control apparatus of claim 6, wherein the first switch and the second switch are operatively connected and are also integrated into one switch unit. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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