Patents by Inventor Dong Kyun Ryu

Dong Kyun Ryu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220285069
    Abstract: A base includes a support plate, an inner wall provided on the support plate, an outer wall arranged apart from the inner wall in a first direction parallel to an upper surface of the support plate, and an insulating cover protruding from the outer wall in the first direction, wherein the outer wall and the inner wall extend in a second direction crossing the first direction.
    Type: Application
    Filed: January 25, 2022
    Publication date: September 8, 2022
    Inventors: Chang Yong KWON, Dong Kyun RYU, Yun Sic BANG
  • Publication number: 20220277888
    Abstract: A transformer having a reverse structure includes: a bobbin part including an inner bobbin and an outer bobbin including, respectively, body parts having through-holes formed therein and having a tubular shape and flange portions protruding outwardly from both ends of the body parts; coils respectively wound in the inner bobbin and the outer bobbin; and a core electrically coupled to the coils to form a magnetic circuit, wherein the inner bobbin and the outer bobbin include, respectively, external connection terminals fastened to one ends of the flange portions formed at an upper end of the body part and bent in a downward direction.
    Type: Application
    Filed: February 21, 2022
    Publication date: September 1, 2022
    Inventors: Chang Yong KWON, Dong Kyun RYU, Yun Sic BANG
  • Publication number: 20220183145
    Abstract: The present invention relates to an electrical device including a printed circuit board (PCB) accommodated in a case, and more particularly, to an air-pocket prevention PCB, an air-pocket prevention PCB module, an electrical device including the same, and a manufacturing method of an electrical device including the same with improved fluidity of a resin material so that air pockets that may occur when the case is filled with the resin material are easily discharged and the resin material may be evenly filled inside the case.
    Type: Application
    Filed: October 13, 2021
    Publication date: June 9, 2022
    Inventors: Jun Kyu Lee, Jeong Man Han, Su Young Kim, Yong Woo Kang, Sang Keun Ji, Dong Kyun Ryu
  • Publication number: 20220183161
    Abstract: The present invention relates to an electrical device including a printed circuit board (PCB) module accommodated in a case, and more particularly, to an electrical device having a heat dissipation structure using a filler that reduces heat generation outside a case while increasing a heat dissipation efficiency of a PCB module by using the filler filled in the case, and a manufacturing method of the same.
    Type: Application
    Filed: August 10, 2021
    Publication date: June 9, 2022
    Inventors: Jun Kyu Lee, Jeong Man Han, Su Young Kim, Yong Woo Kang, Sang Keun Ji, Dong Kyun Ryu
  • Publication number: 20220173560
    Abstract: Provided are an electric appliance and a method of manufacturing the same, the electric appliance having a smaller size and a reduced overall weight by preventing a fluid from flowing into a space unrelated to a heating component in a state where the fluid fills its case. The electric appliance includes: a case including a first space and a second space communicated to each other; a first component disposed in the first space; a second component disposed in the second space; a connection portion electrically connecting the first component and the second component to each other; and a potting pattern including a resin material and formed in the first space.
    Type: Application
    Filed: November 18, 2021
    Publication date: June 2, 2022
    Inventors: Young Jun Jang, Hyun Su Kim, Jun Kyu Lee, Pill Ju Kim, Sang Keun Ji, Dong Kyun Ryu
  • Publication number: 20220173561
    Abstract: Provided are an electric appliance and a method of manufacturing the same, the electric appliance having a smaller size and a reduced overall weight by preventing a fluid from flowing into a space unrelated to a heating component in a state where the fluid fills its case. The electric appliance includes: a case including a first space and a second space communicated to each other; a first component disposed in the first space; a second component disposed in the second space; a connection portion electrically connecting the first component and the second component to each other; and a potting pattern including a resin material and formed in the first space.
    Type: Application
    Filed: November 18, 2021
    Publication date: June 2, 2022
    Inventors: Young Jun Jang, Hyun Su Kim, Jun Kyu Lee, Pill Ju Kim, Sang Keun Ji, Dong Kyun Ryu
  • Patent number: 11223274
    Abstract: Provided is a system of varying a dead time of a converter, including a converter including a plurality of semiconductor switches to which a dead time is applied during an alternate switching operation; and a controller controlling ON/OFF of the plurality of semiconductor switches and setting the dead time, wherein the controller varies the dead time during an operation of the converter. According to the present invention, an over dead-time may be detected and varied to an appropriate dead time, thereby minimizing power loss of the converter and increasing efficiency thereof.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: January 11, 2022
    Assignee: SOLUM CO., LTD.
    Inventors: Sang Keun Ji, Dong Kyun Ryu
  • Publication number: 20210143731
    Abstract: Provided is a system of varying a dead time of a converter, including a converter including a plurality of semiconductor switches to which a dead time is applied during an alternate switching operation; and a controller controlling ON/OFF of the plurality of semiconductor switches and setting the dead time, wherein the controller varies the dead time during an operation of the converter. According to the present invention, an over dead-time may be detected and varied to an appropriate dead time, thereby minimizing power loss of the converter and increasing efficiency thereof.
    Type: Application
    Filed: February 7, 2020
    Publication date: May 13, 2021
    Inventors: Sang Keun JI, Dong Kyun RYU
  • Patent number: 10958182
    Abstract: A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: March 23, 2021
    Assignee: SOLUM CO., LTD.
    Inventors: Sang-keun Ji, Sang-kyoo Han, Cheol-wan Park, Dong-kyun Ryu, Heung-gyoon Choi
  • Publication number: 20200357564
    Abstract: A transformer includes: an upper primary substrate (110) which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns; a lower secondary substrate (120) which is formed by stacking a plurality of dielectric substrates, each substrate being provided with spiral conductive patterns, in which the lower secondary substrate is positioned below the upper primary substrate (110) in such a way that the lower secondary substrate comes into contact with the upper primary substrate (110) or is spaced apart from the upper primary substrate (110); and a secondary coil element (200) of a planar shape to produce an induced current by a current applied to the upper primary substrate (110) and the lower primary substrate (120).
    Type: Application
    Filed: November 27, 2019
    Publication date: November 12, 2020
    Inventors: Eun Sik KIM, Jun Kyu Lee, Changyong Kwon, Dong-kyun Ryu, Sang-keun Ji, Taeksoo Han, Jung Soo Lee
  • Publication number: 20200136518
    Abstract: A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.
    Type: Application
    Filed: December 31, 2019
    Publication date: April 30, 2020
    Inventors: Sang-keun JI, Sang-kyoo HAN, Cheol-wan PARK, Dong-kyun RYU, Heung-gyoon CHOI
  • Patent number: 10630191
    Abstract: A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: April 21, 2020
    Assignee: SOLUM CO., LTD.
    Inventors: Sang-keun Ji, Sang-kyoo Han, Cheol-wan Park, Dong-kyun Ryu, Heung-gyoon Choi
  • Patent number: 10541619
    Abstract: An LLC resonant converter and an electronic device are provided. The LLC resonant converter according to the present disclosure includes a multi input transformer, first and second converter units connected to a primary side of the multi input transformer, an input voltage part, a first balance capacitor, and an output part connected to a secondary side of the multi input transformer.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: January 21, 2020
    Assignee: SOLUM CO., LTD.
    Inventors: Sang-keun Ji, Sang-kyoo Han, Hyun-su Gu, Hyo-hun Kim, Dong-kyun Ryu, Heung-gyoon Choi
  • Patent number: 10505463
    Abstract: An LLC resonant converter and an electronic device are provided. The LLC resonant converter according to the present disclosure includes a multi input transformer, first and second converter units connected to a primary side of the multi input transformer, an input voltage part, a first balance capacitor, and an output part connected to a secondary side of the multi input transformer.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: December 10, 2019
    Assignee: SOLUM CO., LTD.
    Inventors: Sang-keun Ji, Sang-kyoo Han, Hyun-su Gu, Hyo-hun Kim, Dong-kyun Ryu, Heung-gyoon Choi
  • Publication number: 20180342958
    Abstract: An LLC resonant converter and an electronic device are provided. The LLC resonant converter according to the present disclosure includes a multi input transformer, first and second converter units connected to a primary side of the multi input transformer, an input voltage part, a first balance capacitor, and an output part connected to a secondary side of the multi input transformer.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 29, 2018
    Inventors: Sang-keun JI, Sang-kyoo HAN, Hyun-su GU, Hyo-hun KIM, Dong-kyun RYU, Heung-gyoon CHOI
  • Publication number: 20180342953
    Abstract: A transformer and an LLC resonant converter are provided. The transformer includes first and second cores configured to include a pair of outer foots and a middle foot positioned between the outer foots, and to induce a magnetic field formation; first and second inductor winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the first core, and to be connected in series with each other; and first and second transformer winding parts configured to include a conductor surrounding a circumference of each of the pair of outer foots of the second core, wherein the pair of outer foots of the first core face the pair of outer foots of the second core, the middle foot of the first core faces the middle foot of the second core, and the first core and the second core are disposed to be spaced apart from each other.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 29, 2018
    Inventors: Sang-keun JI, Sang-kyoo HAN, Cheol-wan PARK, Dong-kyun RYU, Heung-gyoon CHOI
  • Patent number: 9496796
    Abstract: A multi-output power supply apparatus may include a transformer unit transforming a voltage level of input power using a primary winding and first and second secondary windings, a first output unit stabilizing power applied to the first secondary winding using a voltage multiplier circuit and outputting first power, and a second output unit stabilizing power applied to the second secondary winding and outputting second power.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: November 15, 2016
    Assignee: SOLUM CO., LTD
    Inventors: Sang Gab Park, Hong Sun Park, Dong Kyun Ryu, Hyun Seo Park, Sang In Jang
  • Patent number: 9374012
    Abstract: There is provided a power supply including a direct current (DC) to DC converter supplying main power to a load, and a sub converter connected to the DC to DC converter and reducing output loss, wherein the sub converter is operable based on a hold-up time.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: June 21, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jae Kook Kim, Chong Eun Kim, Sung Ho Kim, Dong Kyun Ryu
  • Publication number: 20160079872
    Abstract: In an embodiment of the present invention, a power converter for applying a voltage to a load having at least one channel includes a power supply for storing and outputting a floating voltage lower than a forward voltage of the channel and a converter for receiving and converting a link voltage to generate a first voltage, thereby transmit the voltage higher than the forward voltage of the channel.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 17, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Kyun RYU, Gie Hyoun KWEON, Sang Kyoo HAN
  • Patent number: 9237616
    Abstract: A switching mode power supply apparatus includes a main transformer converting DC voltage of a predetermined amplitude supplied from a voltage source into DC voltage of a different amplitude; an auxiliary transformer operated by receiving current flowing in a primary winding of the main transformer; a first semiconductor switching element turning on/off an LED array that is driven by receiving voltage from a secondary winding of the auxiliary transformer; and an auxiliary circuit disposed in an LED control circuit unit including the LED array and the first semiconductor switching element, wherein the auxiliary circuit distributes current flowing in the first semiconductor switching element so as to reduce heat generated in the first semiconductor switching element.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: January 12, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Kuk Kim, Dong Kyun Ryu