WO2017119702A1 - 대기전력을 차단하는 전원 어댑터 및 그 제어 방법 - Google Patents
대기전력을 차단하는 전원 어댑터 및 그 제어 방법 Download PDFInfo
- Publication number
- WO2017119702A1 WO2017119702A1 PCT/KR2017/000071 KR2017000071W WO2017119702A1 WO 2017119702 A1 WO2017119702 A1 WO 2017119702A1 KR 2017000071 W KR2017000071 W KR 2017000071W WO 2017119702 A1 WO2017119702 A1 WO 2017119702A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power
- power supply
- unit
- adapter
- microprocessor
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
- H01R31/065—Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
- H02J9/007—Detection of the absence of a load
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Definitions
- the present invention relates to a technology for reducing standby power in a power adapter for use in electronic products (including terminals such as laptops, netbooks, PDAs, tablet PCs, hereinafter referred to as "electronics"), and more specifically, When the battery is fully charged while the electronics are disconnected from the power adapter with the power adapter connected to the outlet or the power of the electronics is turned off, the standby power is automatically cut off so that the energy can be used efficiently. Relates to a power adapter.
- the present invention relates to a technique of using an existing power adapter as a power adapter that cuts off standby power while leaving the design unchanged in an electronic product.
- the present invention has been made in order to solve the above-mentioned problems, it is possible to eliminate the waste of standby power even if the consumer is using the electronic device in the past, the use of electronic products, It is an object of the present invention to provide a power adapter that cuts off standby power and a method of controlling the same, which enables efficient and efficient use of energy without user intervention.
- Still another object of the present invention is to disconnect the electronics from the power adapter in a state in which a power adapter is connected to a power outlet or automatically shut off the standby power when the battery is fully charged while the power of the electronics is turned off. It is to provide a power adapter which can use energy efficiently,
- Still another object of the present invention is to use the output line and the power supply line of the existing power adapter by modifying to have an added function inside the power adapter so that it can be used as it is, without changing the existing circuit of the electronics It is to provide a power adapter that can completely block the standby power and its control penalty.
- the power adapter includes:
- a control unit including at least one microprocessor serving as a means for collectively controlling various data collection, operation, analysis, and operations required for the operation of the power adapter;
- a power switching unit configured to supply power under control of the controller
- a current sensing unit configured as a means for detecting that the power of the electronic product is 'off' and the battery in the electronic product is fully charged:
- a sleep power unit configured to;
- Sensing power switching means configured to supply operation power only when the product connection sensing unit periodically checks whether or not the electronic product is connected in order to further minimize power consumption of the sleep power unit in a state where power is cut off;
- Sleep power sensing means for monitoring the voltage of the sleep power supply to prevent an operation error due to over-discharge of the sleep power supply when the power is cut off; And And And at least one reverse flow prevention means for preventing a reverse flow of a current that may flow from the product connection sensing unit to the power supply unit or from the power supply unit to the product connection sensing unit in a state where the power is cut off.
- a power adapter by blocking the standby power, including a power supply for inputting the power supplied from the outside through the power plug to supply a variety of power required for the electronic products through the adapter jack
- a power adapter is provided, wherein the power adapter has substantially the same configuration as that of the embodiment of the first aspect described above, except that the power adapter does not include sensing power switching means.
- Sensing power switching means is configured to supply the operating power only when the product connection sensing unit periodically checks whether the electronic product is connected in order to further minimize the power consumption of the sleep power unit in the power off state.
- the power adapter of the electronic product according to the present invention completely cuts off standby power that is still wasted in the conventional power adapter, and efficiently maintains standby power without user intervention while maintaining the user pattern of using the electronic product. It can be used to make various electronic products more eco-friendly and energy-saving.
- FIG. 1 is a circuit diagram illustrating an embodiment of a configuration of a power adapter according to the present invention.
- FIG. 2 is a circuit diagram illustrating another embodiment of the configuration of the power adapter according to the present invention.
- FIG. 3 is a schematic representation illustrating the appearance of a power adapter according to the invention and the state in which it is connected to an electronic product.
- the term "electronics” is intended to include terminals such as laptops, netbooks, personal digital assistants (PDAs), 3 ⁇ 4-PCs, etc. that may be connected to or recharged through a power adapter. It should be noted that it is not necessarily limited to these. Hereinafter, for convenience of explanation, only the “electronic product” will be referred to.
- FIG. 1 is a diagram illustrating an embodiment of a circuit for implementing a device for an electrical power adapter 1 according to the present invention. First, with reference to Figure 1 will be described in detail the configuration and operation of the power adapter according to the present invention.
- the power adapter 1 includes a power switching unit 10. When the power of the electronic product (laptop) is 'off' and the battery is fully charged or the electronic product 400 is disconnected, the power switching unit 10 cuts off the power supplied to the electronic product 400 and turns off the power. The adapter 1 is also cut off from the power supply, and a function of supplying power when necessary is performed.
- the power supply switching unit 10 includes at least one transistors Ql and Q2 and at least one latching relay Kcl and Kc2 which perform a switching function under the control of a microprocessor U1 to be described later.
- the power switching unit 10 may also be composed of conventional power switching elements (not shown) such as a triac.
- the power adapter 1 includes a power supply 20 connected to the power switching unit 10, which is connected to an electronic product 400 and the power switching unit 10 is operated. When the power is supplied through the power plug 200, and performs the function of making and supplying the power required for the power adapter (1) and the power required for the electronic product (400).
- the power adapter 1 also includes a current sensing unit CT configured as a means for sensing that the electronics 400 is powered off and the battery in the electronics 400 is full.
- the power adapter 1 also includes a sleep power supply 30 comprising a supercapacitor C1 and a diode D1.
- the sleep power supply unit 30 charges the power required when the power is supplied, so that the power is supplied only to the product connection sensing unit 50 and the microprocessor U1 of the control unit 80 even when the power switching unit 10 is cut off. It is a power supply that functions to supply minimum power consumption.
- the sleep power supply unit 30 includes a conventional super capacitor or a rechargeable battery electrically having a function such as a layered electric charge, and a backflow preventing diode (for example, D1). It will be configurable.
- the power adapter 1 also includes sensing power supply switching means 40 having at least one transistor Q3 connected to the sleep power supply 30.
- the sensing power switch means 40, the electronic product is connected to the product connection sensing unit 50 to further minimize the power consumption of the sleep power supply unit 30 when the power is cut off . It serves as a means for supplying power only when it is desired to check whether or not it is.
- the sensing power switching means 40 may be omitted in the configuration of the power adapter of the present invention, as described in the embodiment shown in FIG. 2 to be described later. If yireot bran is not one of the sensing power supply switching means 40, the said slip power supply 30 is configured to continue to power the appliance connected to the sensing unit (50).
- the power adapter 1 also serves as a means of checking whether the electronic product 400 is 3 ⁇ 43 ⁇ 4 in a state where the power is cut off, and a product connection connection sensing unit 50 consisting of a comparator U2 and a resistor R1. ).
- the electronic device connection sensing unit 50 receives power from the sleep power supply unit 30 to sense whether the electronic product 400 is connected and informs the result of the microprocessor U1.
- the power adapter 1 may further include a control unit that serves as a means for collectively controlling various data collection, calculation, analysis, and operations required for the operation of the power adapter 1 according to an embodiment of the present invention. 80).
- the controller 80 is referred to as at least one microprocessor U1 (or 'microcomputer' or 'microcom'). It may be implemented, and may include at least one memory for storing various data required for the operation of the apparatus of the present invention.
- the microprocessor U1 of the control unit 80 is also connected to a slip power sensing means including at least one resistor R2, which slip power sensing unit overshoots when the power is shut off. In order to prevent an operation error due to the former, it serves to monitor the voltage of the sleep power supply unit 30. Therefore, as a result of the monitoring, when the voltage of the slip power source unit 30 becomes less than the predetermined voltage, the power switching unit 10 is controlled to supply power regardless of the connection of the electronic product 400. have.
- the first backflow preventing means 70 is connected to the product connection ensing unit 50 and the power supply unit in order to prevent the reverse flow of the current which can flow from the product connection sensor 50 to the power supply unit 20. It is connected between the 20 and the first backflow prevention water stage 70 includes at least one diode D3.
- the second backflow prevention means 60 to prevent the reverse flow of the current which may flow from the power supply 20 toward the product connection sensing unit 50.
- the power adapter 1 also has a power plug 200 connected at one end to the power switching unit 10 and at the other end to be inserted into a power supply socket so as to input a power supply voltage supplied from the unit. And one end is connected to the backflow prevention means (60 and 70) and the function as a passage for supplying power to the electronics 400 through the other end
- An adapter jack 300 is provided that is configured to perform.
- FIG. 2 is a diagram illustrating another embodiment of a circuit for implementing a future power adapter 1 for an electronic product according to the present invention.
- the transistor Q3 connected between the sleep power supply unit 3 and the product connection sensing unit 50 is omitted in the configuration of the power adapter 1 of FIG. 1 described above. It is the same as the structure of FIG.
- the sleep power supply unit 30 supplies the layered power supply. It is configured to continuously supply the product connection sensing unit 50.
- the configuration and operation principle of the remaining components other than those related to the sensing power switching means 40 are completely the same as those described above with reference to FIG. 1, and thus, further detailed description of those remaining components is omitted here. do.
- FIG. 3 is a schematic representation for illustrating the typical appearance of the power adapter 1 according to the invention and the state in which it is connected with the electronics.
- the power adapter 1 assumes that the product is shipped by setting the latching relay contacts Kla and Klb of the power switching unit 10 to be connected at the time of manufacture at the factory.
- the microprocessor U1 reads the current value flowing through the current sensing unit CT into the analog-to-digital converter input AD1. .
- This input current value is stored in the buffer and the change of the current is confirmed. If a current value smaller than the value previously stored in the buffer is entered, the current value is input to the buffer.
- the current value is continuously changed. If the power of the electronics 400 is 'off' and the battery is under layer, its current value continues to decrease. When the current value decreases in this way, if the current value remains undecreased for more than a predetermined time period T1 (e.g., 20 minutes), the microprocessor U1 of the controller 80 is fully charged. Since the minimum value stored in the buffer is the standby current value, it is stored and set in the memory as the standby current value.
- T1 e.g. 20 minutes
- the microprocessor U1 of the controller 80 compares the current value read through the AD1 input with the standby current value stored in the memory. As a result of the comparison, when determined as the standby current value, the microprocessor U1 outputs a field to the output 02 so that the transistor Q1 is 'turned on' and then 'turned off'. At this time, the relay contact (Kla, Klb) of the power switching unit 10 is open, the power supplied to the power adapter 1 is cut off, the standby power of the power adapter (1) is substantially 0 Watt. In addition, the microprocessor U1 of the control unit 80 enters a sleep mode in order to minimize power consumption in a state where power is cut off, and then performs sleep mode control.
- the microprocessor U1 that consumes low power is applied to consume less than or equal power, thereby enabling long-term control using only the power layered in the sleep power supply unit 30.
- the microprocessor U1 determines that the electronics 400 are separated by this signal.
- Microprocessor Ul outputs a pulse to output 02 causing transistor Q1 to be turned 'on' and then 'turned off'.
- the relay contacts (Kla, Klb) of the power switching unit ⁇ are opened, and the power supplied to the power adapter 1 is cut off, whereby the standby power of the power adapter 1 becomes 0 Watt.
- microprocessor J1 of the controller 80 enters the sleep mode to perform the sleep mode control in order to minimize the power consumption in the state where the power is cut off.
- the output tooth of the microprocessor U1 is output as 'high' to turn off the transistor Q3 of the sensing power supply switching means 40, By shutting off the power supply to the product connection sensing unit 50, the power consumption is reduced accordingly, and the sleep mode is performed to reduce the power consumption of the microprocessor U1.
- the microprocessor U1 of the control unit 80 wakes up periodically every predetermined time period TP1 (for example, 10 seconds) in order to determine whether the electronic product 400 is connected, and outputs the same. Outputs 01 as 'low' to turn on the transistor Q3 of the sensing power switching means 40 so that power is supplied to the product connection sensing unit 50 to periodically check whether the electronic product is connected. do.
- predetermined time period TP1 for example, 10 seconds
- the output of the product connection sensing unit 50 becomes 'high' and is input to the input II of the microprocessor U1 of the controller 80.
- the microprocessor Ul performs a built-in interrupt routine that determines that the electronics 400 are being used upon application of the signal inputted as II, and outputs a pulse to the output 03 to output the transistor of the power switching unit 10.
- Power supply mode control is performed by turning on (Q2).
- the interrupt routine is one control algorithm that operates whenever necessary stored in the microprocessor U1.
- the output 01 of the microprocessor U1 is output as 'high' to further reduce the discharge of the power of the sleep power supply unit 30.
- This turns off the transistor Q3 of the sensor power switching unit 40, cuts off the power supply to the product connection sensing unit 50, thereby reducing power consumption, and consumes power of the microprocessor U1.
- the sensing power switching unit 40 is provided. Perform sleep mode control without the need for control.
- the microcontroller 80 Processor U1 wakes up every relatively long time period TP2 (e.g., assumes 30 minutes) in sleep mode and outputs a pulse to its output 03.
- the transistor Q2 of the power switching unit 10 is turned on and then turned off.
- the relay contacts Kla and Klb are connected, and thus power is supplied to the power adapter 1, whereby the power supply unit 20 supplies power to the electronics 400 through the diode D3.
- the current sensing unit CT detects a current and inputs the detected signal to the input AD1 of the microprocessor U1 of the controller 80. Then, the microprocessor compares the input current value with a pre-stored standby current value, and if the input current value is larger than the standby current value, the microprocessor determines that the electronic product is to be used and keeps supplying power.
- the microprocessor U1 pulses to its output 02 to turn off the standby power, and the transistor Q1 is turned 'on' and then turned on. Make it 'off'. At this time, the relay contacts (Kla, Klb) of the power switching unit 10 are opened to cut off the power supplied to the power adapter (1).
- the r microprocessor U1 of the controller 80 enters the sleep mode and then performs the sleep mode control.
- the product connection sensing unit 50 allows current to flow through the resistor R1 and through the countercurrent radiator means 60. Therefore, a potential difference occurs between the voltages Vp and Vpp of the resistor R1 so that the voltage Vpp is lower than the voltage Vp. Accordingly, the input difference is input to the inverter stage of the comparator U2 to compare the voltage. The output of machine (U2) becomes 'high' state.
- the microprocessor U1 executes an interrupt routine stored therein and outputs a predetermined pulse through the output stage 03.
- the transistor Q2 of the power switching unit 10 is turned 'on' and then turned 'off' so that the relay contacts Kla and Klb are connected so that power is supplied to the power adapter 1 so as to supply the electronic product 400. Will supply power.
- the microprocessor U1 When the power supply is cut off and the electronic device 400 is not used for a long time or a power failure occurs for a long time, the microprocessor U1 is in the sleep mode by preventing the sleep power supply 30 from being over discharged and malfunctioning. Each time it wakes up, the slip power supply Vs of the slip power supply unit 30 is checked at the analog-to-digital converter terminal AD2 through the resistor R2. As a result, if Vs is equal to or greater than the predetermined voltage Ccd (e.g., assumed to be 3V), the process proceeds to the sleep 1 mode described above, and if it is less than or equal to the voltage Ccd, a pulse is output to the output 03.
- the predetermined voltage Ccd e.g., assumed to be 3V
- the transistor Q2 of the power switching unit 10 is turned 'on' and then turned 'off', and the relay contacts Kla and Klb are connected to supply power to the power adapter 1.
- the supercapacitor C1 of the power supply unit 30 is layered.
- the microprocessor U1 confirms this value through AD2, outputs a pulse to the output 02, and the transistor Q1 turns 'on' and then turns 'off'. To be. At this time, the relay contact of the power switching unit 10 (Kla, Klb) is open and cuts off the power supplied to the power adapter 1, and the microprocessor U1 performs sleep mode control.
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020187015772A KR102661979B1 (ko) | 2016-01-04 | 2017-01-04 | 대기전력을 차단하는 전원 어댑터 및 그 제어방법 |
US16/067,831 US20190027880A1 (en) | 2016-01-04 | 2017-01-04 | Power adapter for cutting off standby power and control method therefor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2016-0000241 | 2016-01-04 | ||
KR20160000241 | 2016-01-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017119702A1 true WO2017119702A1 (ko) | 2017-07-13 |
Family
ID=59274086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2017/000071 WO2017119702A1 (ko) | 2016-01-04 | 2017-01-04 | 대기전력을 차단하는 전원 어댑터 및 그 제어 방법 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20190027880A1 (ko) |
KR (1) | KR102661979B1 (ko) |
WO (1) | WO2017119702A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117485168A (zh) * | 2023-12-22 | 2024-02-02 | 江苏日盈电子股份有限公司 | 充电桩以及电动汽车的充电方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL281685B2 (en) * | 2021-03-21 | 2023-10-01 | Ik Innovations Llc | A device and method for controlling the connection of power supplies to the power grid |
WO2023136466A1 (ko) * | 2022-01-17 | 2023-07-20 | 김병호 | 대기전력 차단장치 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950006567B1 (ko) * | 1991-12-23 | 1995-06-16 | 재단법인한국전자통신연구소 | 패킷 교환 기능을 위한 내부 프로토콜 관리기와 운영체계와의 정합방법 |
KR100965611B1 (ko) * | 2009-02-03 | 2010-06-23 | 라인식 | 컴퓨터시스템의 대기전력 절감장치 |
KR20110092847A (ko) * | 2010-02-10 | 2011-08-18 | 주식회사 유컴테크놀러지 | 대기전력 차단 장치 및 방법 |
JP2012103965A (ja) * | 2010-11-11 | 2012-05-31 | Lenovo Singapore Pte Ltd | Acアダプタおよび電源システム |
KR20140001140A (ko) * | 2012-06-25 | 2014-01-06 | 김창호 | 전원 어댑터를 이용하는 전자제품의 대기전력 차단 장치 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950010897B1 (ko) * | 1993-08-06 | 1995-09-25 | 삼성전자주식회사 | 컴퓨터 시스템에서 컴퓨터 주변장치의 전원관리신호 발생방법 및 제어장치 |
-
2017
- 2017-01-04 US US16/067,831 patent/US20190027880A1/en not_active Abandoned
- 2017-01-04 WO PCT/KR2017/000071 patent/WO2017119702A1/ko active Application Filing
- 2017-01-04 KR KR1020187015772A patent/KR102661979B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950006567B1 (ko) * | 1991-12-23 | 1995-06-16 | 재단법인한국전자통신연구소 | 패킷 교환 기능을 위한 내부 프로토콜 관리기와 운영체계와의 정합방법 |
KR100965611B1 (ko) * | 2009-02-03 | 2010-06-23 | 라인식 | 컴퓨터시스템의 대기전력 절감장치 |
KR20110092847A (ko) * | 2010-02-10 | 2011-08-18 | 주식회사 유컴테크놀러지 | 대기전력 차단 장치 및 방법 |
JP2012103965A (ja) * | 2010-11-11 | 2012-05-31 | Lenovo Singapore Pte Ltd | Acアダプタおよび電源システム |
KR20140001140A (ko) * | 2012-06-25 | 2014-01-06 | 김창호 | 전원 어댑터를 이용하는 전자제품의 대기전력 차단 장치 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117485168A (zh) * | 2023-12-22 | 2024-02-02 | 江苏日盈电子股份有限公司 | 充电桩以及电动汽车的充电方法 |
CN117485168B (zh) * | 2023-12-22 | 2024-04-26 | 江苏日盈电子股份有限公司 | 充电桩以及电动汽车的充电方法 |
Also Published As
Publication number | Publication date |
---|---|
US20190027880A1 (en) | 2019-01-24 |
KR102661979B1 (ko) | 2024-04-30 |
KR20180091830A (ko) | 2018-08-16 |
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