KR101298006B1 - Method and apparatus of supplying power for computiong apparatus - Google Patents

Abstract

PURPOSE: A power supplying method for a computing device and a device thereof increase the efficiency in AC/DC converting and reliably supply power to a computing device by dualizing an incoming DC and a power supply unit. CONSTITUTION: A power input system includes a first power input unit and a second power input unit (101,102). A first power supply unit (140) includes a power supply unit (PSU) which rectifies an incoming DC from the first power input unit into AC and outputs the AC. A second power supply unit (150) includes a PSU which rectifies an incoming DC from the second power input unit into AC and outputs the AC. When the DC comes into the first and second power input units, a control unit (180) calculates the value of output power based on the values of output current and output voltage measured by an output sensor (160) and turns on or off the PSUs of the first and second power supply units according to the output power value. [Reference numerals] (100) First power input unit; (102) Second power input unit; (131) First AC distribution unit; (132) Second AC distribution unit; (165) DC output unit; (180) Control unit; (190) Temperature and humidity sensor; (200) Cooling unit; (210) Display unit; (220) Communication circuit; (31) Computing DC input unit; (32) Standby power output unit; (33) A/D conversion unit; (34) Computing DC output unit

Description

TECHNICAL AND APPARATUS OF SUPPLYING POWER FOR COMPUTIONG APPARATUS

The present invention relates to a power supply method and apparatus for a computing device.

Recently, as many data centers are operated around the world, such as Internet portal companies with data centers operating hundreds of thousands of devices, researches are being conducted on technologies for increasing data center power efficiency. In addition, by using one PC per person in the workplace, work is performed using computing devices in the same space, exposing them to fine dust, heat, and harmful substances caused by the use of computing. Power to do is soaring.

The method of supplying power to a plurality of computing devices to one centralized power supply among these studies reduces the electricity consumption by reducing the amount of electricity consumed by a single power supply to power a single computing device. Have.

However, when an electrical error (for example, disconnection or short circuit, etc.) of a computing device connected to the power supply occurs while supplying power to a plurality of computing devices with one power supply, an alternating current is inputted to the power supply. Since the whole is cut off, a plurality of computing devices connected to the power supply are cut off at the same time to cause data loss during operation and failure of the computing device.

In addition, when a large amount of power is supplied from the computing device connected to the power supply device, there is a problem in that power cannot be supplied to the computing device due to the overload of the power supply unit connected to the conventional power supply device.

The technical problem to be achieved by the present invention relates to a power supply method and apparatus for a computing device to power the computing device stably and efficiently.

A power supply device for a computing device according to an embodiment of the present invention includes a power input unit including a first power input unit and a second power input unit, and at least one power source for converting and outputting an alternating current received from the first power input unit into direct current. A second power supply unit including a first power supply unit including a supply unit (PSU), at least one power supply unit (PSU) for converting and outputting an alternating current received from the second power input unit into direct current, and the power supply It includes a control unit for controlling the turn on, turn off of the unit.

In the power supply method for a computing device according to an embodiment of the present invention, the power supply device supplies power to the computing device, the initial power required by the computing device using the output current and the output voltage measured by the output sensor. Checking an output power, when power is input to both the first power input unit and the second power input unit, supplying initial power through the first power input unit and the second power input unit according to the initial output power; Calculating output power by using the output current and the output voltage measured by the output sensor, and checking whether there is a change in the output power, and if there is a change in the output power, the first power input unit according to the change in the output power. And adjusting the power supply by controlling the second power input unit.

According to the power supply method and apparatus for a computing device according to an embodiment of the present invention has the following effects.

First, the present invention can increase the AC / DC conversion efficiency and stably supply the DC to the computing device by the duplication of the input AC and the duplication of the power supply unit.

Second, the present invention ensures that there is no problem in supplying power to other computing devices even if an error occurs in any computing device connected to the power supply.

Third, the present invention prevents the overload of the power supply even when the plurality of computing devices connected to the power supply are turned on at the same time, thereby enabling normal operation of the computing device.

1 is a block diagram illustrating a power supply apparatus according to an embodiment of the present invention.
2 is a flowchart illustrating a method for supplying power to a computing device according to an embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, it is to be understood that the present invention is not limited to the disclosed embodiments, but may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It is intended that the disclosure of the present invention be limited only by the terms of the appended claims.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprises "and / or" comprising "used in the specification do not exclude the presence or addition of components other than the components mentioned. Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to describe the present invention in more detail.

In the present invention, "Power Supply Unit (hereinafter referred to as" PSU ") means a device that converts AC into direct current and supplies it to a computing device.

In addition, in the present invention, the computing device does not include each individual PSU, but operates by receiving a direct current from the outside to reduce the loss caused by the current change.

1 is a block diagram illustrating a power supply apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the power supply 10 supplies power to at least one computing device 20. Here, the power supply device 10 receives alternating current (AC) from the outside and supplies a direct current (DC) to the computing device 20.

The power supply device 10 includes a power input unit 100, a first power supply unit 140, a second power supply unit 150, and a controller 180. In addition, the power supply 10 is a power cut-off unit 111, 112, AC measuring sensor 120, the first AC distribution unit 131, the second AC distribution unit 132, the output sensor 160, DC The output unit 165 may further include a fuse 170, a temperature humidity sensor 190, a cooling unit 200, a communication circuit 220, and a display unit 210.

The power input unit 100 includes a first power input unit 101 and a second power input unit 102 as an AC input portion. Here, the AC input to the power input unit 100 may be various AC, such as 110V, 220V or PSU required. In particular, in the present invention, the power input unit 100 is applicable to all inventions composed of at least a plurality. This characteristic of the present invention is that the power input unit 100 has a problem in one of the first power input unit 101 or the second power input unit 102, the power is input to the other one even if the power is not input to the computing device 20 This has the advantage of being able to continuously supply power.

The power cut-off parts 111 and 112 cut off the AC input when a problem such as a short circuit or a short circuit occurs in the power supply device 10. When such a problem occurs, the power supply device 10 may be protected by the power cutoff of the power cutoff units 111 and 112.

The AC measuring sensor 120 measures the AC and transmits the measurement result to the controller 180. The first AC measuring sensor 121 and the second power measuring the AC output from the first power input unit 101 are measured. It includes a second AC sensor 122 for measuring the alternating current output from the input unit (102).

The first AC distribution unit 131 transmits the AC received from the first power input unit 101 to each PSU (PSU1 141, PSU2 142, PSU3 143, and PSU4 144 in the first power supply 140). This part distributes alternating current to each PSU stably.

The AC received from the second power distribution unit 132, the second power distribution unit 132, respectively, in the second power supply unit 150 (PSU5 (155), PSU6 (156), PSU7 (157), PSU8 (158) This part distributes AC stably to each PSU. In the present invention, since the first power supply unit 140 and the second power supply unit 150 each include four PSUs, the first alternating current distribution unit 131 and the second alternating current distribution unit 132 are respectively provided in four PSUs. Although the power is distributed, the AC distributed by the first power supply 140 and the second power supply 150 may be changed according to the PSU included in the first power supply 140 and the second power supply 150.

The first power supply unit 140 includes at least one power supply unit (PSU) for converting the alternating current received from the first power input unit 101 into direct current and outputting the direct current. In the present invention, the first power supply unit 140 will be described with an example including four PSUs such as PSU1 141, PSU2 142, PSU3 143, and PSU4 144.

The second power supply unit 150 includes at least one power supply unit (PSU) for converting the alternating current received from the second power input unit 102 into a direct current. In the present invention, the second power supply unit 150 will be described with an example including four PSUs such as PSU5 155, PSU6 156, PSU7 157, and PSU8 158.

The first power supply unit 140 and the second power supply unit 150 turn on / off respective PSUs under the control of the controller 180.

The output sensor 160 measures the output current and output voltage of the DC output from the first power supply unit 140 and / or the second power supply unit 150. The controller 180 calculates the output power using the values of the output current and the output voltage measured by the output sensor 160, and controls the first power supply 140 and the second power supply 150.

The DC output unit 165 is a portion that outputs the DC output from the first power supply unit 140 and / or the second power supply unit 150 to at least one or more computing devices 20. For example, the DC output unit 165 receives a DC of 12V and outputs it.

The power supply 10 may further include a fuse 170 between the DC output unit 165 and the computing device 20, the fuse 170 having a severe electrical error such as a short circuit inside the computing device 20. Due to this serves to cut off the current between the power supply 10 and the computing device 20 to prevent the output of the entire power supply of the power supply (10).

Temperature humidity sensor 190 is a part for measuring the temperature and humidity in the power supply (10). The controller 180 checks the temperature and humidity measured by the temperature humidity sensor 190, and when the temperature is higher than the preset temperature, operates the cooling unit 200 to control the temperature of the power supply device 10 to be lowered, and the preset temperature. If it is below the control to stop the operation of the cooling unit (200). By doing so, the cooling device included in the conventional computing device 20 continues to operate when power is applied, thereby shortening the lifespan and solving the problem of power consumption.

The cooling unit 200 is a portion that lowers the temperature by operating the temperature raised by the heat of the power supply device 10 under the control of the controller 180.

The display unit 210 provides an interface related to the output between the user and the power supply 10. That is, the display unit 210 displays a visual output to the user, and the user can view various data such as a PSU state, a power usage state, and a power state through the display device. The visual output may include LED displays, animations, images, text, graphics, video, and combinations thereof.

The communication circuit 220 transmits and receives a signal such as an electromagnetic wave. The communication circuit 220 converts an electric signal into an electromagnetic wave and communicates with the communication network and other communication devices through the electromagnetic wave. The communication circuit 220 includes, for example, an antenna system, an RF transceiver, one or more amplifiers, tuners, one or more oscillators, a digital signal processor, a CODEC chipset, a Subscriber Identity Module (SIM) card, a memory, and the like. The present invention is not limited thereto, and may include well-known circuits for performing such a function. The communication circuitry 220 may comprise the Internet, called the World Wide Web (WWW), intranets and networks and / or wireless networks such as cellular telephone networks, wireless LANs and / or metropolitan area networks (MAN), and wireless communications. Can communicate with other devices. Wireless communication includes Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Bluetooth (Bluetooth), Wireless Fidelity (Wi-Fi) (e.g., IEEE802.11a, IEEE802.11b, IEEE802.11g and / or IEEE802.11n), Voice over Internet Protocol (VoIP), Wi-MAX, Email, Instant Messaging A plurality of communication standards, protocols and the like, including but not limited to, instant messaging and / or other suitable communication protocols including protocols for short text service (SMS) or communication protocols not yet developed at the time of filing of the present invention; Any of the techniques can be used.

For example, the communication circuit 220 may transmit various data of the power supply device 10 (for example, operation of each component, values measured by each sensor, data such as output current, output voltage, etc.) to an external device. Or a signal including a user's command from an external device may be received by the power supply device 10. By doing so, the user can control the power supply 10 from the outside.

The controller 180 controls the power supply 10 as a whole. The controller 180 controls the turn-on and turn-off of the power supply unit in the first and first power supply units. When AC is input to the first power input unit 101 and the second power input unit 102, the controller 180 calculates the output power based on the values of the output current and the output voltage measured by the output sensor 160, and output power. According to control the turn-on, turn-off of the power supply unit in the first power supply unit 140 and the power supply unit in the second power supply unit 150, the power supply unit and the second power supply unit in the first power supply unit 140 The power supply unit within 150 is alternately turned on / off.

When the controller 180 confirms that AC is being input to the PSU, the controller 180 maintains the PSU in a standby state (turn-on standby state), and when the output power rises momentarily, the controller 180 immediately turns on the required number of PSUs and supplies them to the computing device 20. Make sure there is nothing wrong with the power supply.

For example, when the controller 180 initially checks the output power, and when four PSUs are turned on to supply power to the computing device 20, the controller 180 supplies the first power in the first power supply 140. PSU1 (141) turn-on supply unit, PSU5 (155) turn-on, the first power supply unit in the second power supply unit 150, PSU2 (142) turn-on, second power source, the second power supply unit in the first power supply unit 140 The turn-on is controlled in the order of the turn-on of the PSU6 156 which is the second power supply unit in the supply unit 150.

Subsequently, when the output power is changed and as a result of the output power check, two PSUs are turned on to supply power to the computing device 20 and the two PSUs should be turned off, the controller 180 may supply the second power supply 150. The PSU6 156 of the second power supply unit in the first power supply unit 140 is turned off and the PSU2 142 of the second power supply unit 140 is turned off.

In an embodiment, when the maximum output of each PSU is configured to 1000W, and the PSU is additionally turned on when the maximum output of the PSU is 50% or more, the control unit 180 PSU1 (if the output power is 1W to 499W). 141 is turned on and the controller 180 turns on the PSU1 141 and the PSU5 155 when 500 W to 999 W, and the controller 180 turns on the PSU1 141 and PSU5 155 when the output power is 1000 W to 1499 W. When the PSU2 142 is turned on and the output power is 1500W to 1999W, the controller 180 turns on the PSU1 141, the PSU5 155, the PSU2 142, and the PSU6 156, and the output power is 2000W to 2499W. The controller 180 turns on the PSU1 141, the PSU5 155, the PSU2 142, the PSU6 156, and the PSU3 143, and when the output power is 2500 W to 2999 W, the controller 180 controls the PSU1 141. When the PSU5 (155), PSU2 (142), PSU6 (156), PSU3 (143), and PSU7 (157) are turned on and the output power is 3000W to 3499W, the controller 180 controls the PSU1 (141), PSU5 (155), When the PSU2 142, PSU6 156, PSU3 143, PSU7 157, and PSU4 144 are turned on, and the output power is 3500 W to 3999 W, the controller 180 controls PSU1. 141, PSU5 155, PSU2 142, PSU6 156, PSU3 143, PSU7 157, PSU4 144, and PSU8 158 are turned on. On the contrary, when there is a fluctuation in output power decreasing while turning on any number of PSUs and supplying power, the controller 180 turns off the PSU according to the range of the output power.

In another embodiment, when the maximum output of each PSU is configured to 1000W, and the PSU is additionally turned on when more than 50% of the maximum output of the PSU is set, if the output power is 1W to 999W, the controller 180 controls PSU1. 141, the PSU5 155 is turned on, and if the output power is 1000 W to 1999 W, the controller 180 turns on the PSU1 141, PSU5 155, PSU2 142, and PSU6 156, and the output power is turned on. The controller 180 turns on the PSU1 141, the PSU5 155, the PSU2 142, the PSU6 156, the PSU3 143, and the PSU7 157 when 2000W to 2999W, and when the output power is 3000W to 3999W. 180 turns on PSU1 141, PSU5 155, PSU2 142, PSU6 156, PSU3 143, PSU7 157, PSU4 144, and PSU18 158. On the contrary, when there is a fluctuation in output power decreasing while turning on any number of PSUs and supplying power, the controller 180 turns off the PSU according to the range of the output power.

Herein, the present invention is applicable to a PSU having various maximum outputs, and when the PSU is turned on additionally when the maximum output of the PSU exceeds a preset value, the maximum output of the preset PSU may also vary according to the design. Do.

The power supply device 10 may further include a control method switching switch (not shown). The control method selector switch can change the power supply autonomous control to either automatic mode or manual mode.

Computing device 20 includes at least one hardware component, which does not include a PSU, but includes a power distribution unit (hereinafter, referred to as a PDU) 30.

The PDU 30 receives a direct current input from the computing direct current input unit 31 and a direct current input from the computing direct current input unit 31 to receive a direct current from the power supply device 10 (eg, a power supply of 12 V, 5 V, and 3.3 V). The DC output from the standby power output unit 32, the A / D conversion unit 33 for converting the DC input from the computing DC input unit 31 from analog to digital, and the A / D conversion unit 33 Computing DC output unit 34 for outputting the power required for the computing device 20 (for example, 12V, 5V, 3.3V, -12V, -5V, Poweron (PSon), Powergood (P_GOOD)) do.

The computing device 20 measures the power of the computing DC output unit 34 in real time and transmits a signal to the A / D converter 33 when the DC output exceeds the capacity of the PDU 30 to generate the A / D. The converter 33 controls the power to be cut off.

2 is a flowchart illustrating a method for supplying power to a computing device according to an embodiment of the present invention.

Referring to FIG. 2, the power supply device 10 receives power from the outside through the first power input unit 101 and the second power input unit 102 (S110).

The controller 180 of the power supply device 10 checks the initial output power required for the computing device 20 by using the output current and the output voltage measured by the output sensor 160 (S120).

The controller 180 of the power supply device 10 checks whether power is input to both the first power input unit 101 and the second power input unit 102 through the AC measurement sensor 120 (S130).

When power is input to both the first power input unit 101 and the second power input unit 102, the controller 180 of the power supply device 10 may be configured according to the required initial output power. 2, the initial power supply through the power supply unit 150. In this case, the controller 180 of the power supply device 10 turns on and off the power supply unit in the first power supply unit 140 and the power supply unit in the second power supply unit 150 according to the required initial output power. While controlling, the power supply unit in the first power supply unit 140 and the power supply unit in the second power supply unit 150 are alternately turned on.

For example, if the maximum output of the PSU is 1000W, and the PSU is additionally turned on when the maximum output of the PSU is 50% or more, the initial output power required is 900W, and the first power input unit 101 and the When power is input to both of the two power input units 102, the controller 180 turns on the PSU1 141 and the PSU5 155. Detailed description thereof has been made in the description of the controller 180, and thus will be omitted here.

If power is not input to both the first power input unit 101 and the second power input unit 102, the control unit 180 of the power supply device 10 according to the required output power of the first power supply unit 140 and the second The power supply unit 150 supplies power to the computing device 20 through a power supply unit to which power is input (S150). That is, when only one of the first power input unit 101 and the second power input unit 102 is supplied with power, the controller 180 of the power supply device 10 and the first power supply unit 140 according to the required output power. The second power supply unit 150 supplies power to the computing device 20 through a power supply unit to which power is input.

For example, if the maximum output of the PSU is 1000 W, and the PSU is additionally turned on when the maximum output of the PSU is 50% or more, the initial output power required is 900 W, and the power is supplied only to the first power input unit 101. When this is input, the controller 180 turns on the PSU1 141 and the PSU2 142.

The controller 180 of the power supply device 10 continuously calculates the output power using the output current and the output voltage measured by the output sensor 160 (S160).

The controller 180 of the power supply device 10 checks whether there is a change in output power (S170).

If there is a variation in the output power, the controller 180 of the power supply device 10 controls the first power supply 140 and / or the second power supply 150 to adjust the power supply according to the changed output power. (S180). Detailed description thereof has been made in the description of the controller 180, and thus will be omitted here.

If there is no change in output power, the controller 180 of the power supply 10 performs step S130.

The method according to embodiments of the present invention may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, and the like, alone or in combination. Programs (program instructions) recorded on the recording medium may be those specially designed and configured for the present invention, or may be known and available to those skilled in computer software. Examples of the computer-readable recording medium include magnetic media such as a hard disk, a floppy disk and a magnetic tape, optical media such as a CDROM and a DVD, magneto-optical media such as a floppy disk, Hardware devices that are specifically configured to store and execute program instructions such as magneto-optical media, ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

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, but, on the contrary, It will be appreciated that one embodiment is possible. Accordingly, the true scope of the present invention should be determined by the technical idea of the claims.

10: power supply
20: computing device
30: PDU
31: computing DC input unit
32: standby power output unit
33: A / D converter
34: computing DC output unit
100: power input unit
101: first power input unit
102: second power input unit
111, 112: power cutoff
120: AC measuring sensor
121: first flow measuring sensor
122: second flow measuring sensor
131: first exchange distribution
132: second exchange distribution
140: first power supply unit
141: PSU1
142: PSU2
143: PSU3
144: PSU4
150: second power supply unit
155: PSU5
156: PSU6
157: PSU7
158: PSU8
160: output sensor
165: DC output unit
170: fuse
180:
190: temperature and humidity sensor
200: cooling part
210: display unit
220: communication circuit

Claims (10)

A power input unit including a first power input unit and a second power input unit;
A first power supply including at least one power supply unit (PSU) for converting and outputting an alternating current received from the first power input unit into direct current; and converting the alternating current received from the second power input unit into direct current and outputting the direct current; A second power supply unit including at least one power supply unit (PSU),
Output sensor,
When AC is input to the first power input unit and the second power input unit, the output power is calculated based on the output current and the output voltage measured by the output sensor, and the power in the first power supply unit is calculated according to the output power. A control unit for controlling the turn-on, turn-off of the power supply unit in the supply unit and the second power supply unit,
And the control unit turns on the power supply unit in the first power supply unit and the power supply unit in the second power supply unit alternately. delete delete The method of claim 1,
The control unit controls the first power supply and the second power supply,
Turn-on control of the power supply unit includes turning on the first power supply unit in the first power supply, turning on the first power supply unit in the second power supply, turning on the second power supply unit in the first power supply, and turning on the second power supply. Power supply for a computing device, the second power supply unit being turned on in turn, and the turn-off control in the reverse order. The method of claim 1, wherein
The power supply device further includes a temperature humidity sensor, a cooling unit,
The control unit is a power supply device for a computing device to control to operate the cooling unit, when the temperature and humidity sensor senses a predetermined temperature. The method of claim 1,
And a first alternating current distribution unit for distributing power received from the first power input unit, and a second alternating current distribution unit for distributing power received from the second power input unit. A method of supplying power to a computing device, the power supply comprising:
Identifying an initial output power required for the computing device using the output current and the output voltage measured by the output sensor,
When power is input to both the first power input unit and the second power input unit, supplying initial power through the first power input unit and the second power input unit according to the initial output power;
Calculating output power using the output current and the output voltage measured by the output sensor, and checking whether there is a change in the output power;
And adjusting the power supply by controlling the first power input unit and the second power input unit according to the change of the output power when the output power changes.
Supplying the initial power,
The controller of the power supply device controls the on and off of the power supply unit in the first power supply unit and the power supply unit in the second power supply unit according to the initial output power,
And the control unit alternately turns on the power supply unit in the first power supply unit and the power supply unit in the second power supply unit. delete The method of claim 7, wherein
If there is a change in the output power, controlling the first power input unit and the second power input unit according to the change in the output power to adjust the power supply,
The control unit controls the first power supply and the second power supply,
Turn-on control of the power supply unit includes turning on the first power supply unit in the first power supply, turning on the first power supply unit in the second power supply, turning on the second power supply unit in the first power supply, and turning on the second power supply. Power supply unit for the computing device, the turn-off control in the reverse order. 10. The method of claim 9,
If power is input to any one of the first power input unit and the second power input unit, further comprising supplying power through a power supply unit to which power is input from the first power supply unit and the second power supply unit. Power supply method for the device.

Images