21 patents
Utility
High-efficiency Phase Shift Full-bridge Converter
4 Jan 24
A phase shift full bridge (PSFB) converter includes a switch portion including first to fourth switches connected in a form of a full bridge, a transformer configured to convert the output of the switch portion, a rectifying portion including at least one of a switch and a diode and configured to rectify the output of the transformer, a resonance inductor having an end connected to another end of a primary portion of the transformer and another end connected to a node between the third switch and the fourth switch, a first clamp diode having an end connected to an end of the first switch and another end connected to the other end of the primary portion of the transformer, and a second clamp diode having an end connected to the other end of the primary portion of the transformer and another end connected to another end of the second switch.
Sang Keun JI, Jae Eun KIM, Dong Kyun RYU
Filed: 30 Jun 23
Utility
Label Apparatus for Peg Hook
21 Sep 23
A label apparatus for a peg hook includes a body including a display unit displaying product information and a holder detachably provided at one end of the body and including a first engaging portion and a second engaging portion in which one end portions are rotatably connected to each other and the other end portions are attached to each other so that a catching hole is formed therebetween.
Sang Baek PARK
Filed: 18 Jan 23
Utility
Electronic Shelf Label and Method of Controlling Information Display of the Same
14 Sep 23
Provided is a computing technology for controlling information display of an electronic shelf label that is connected to a management server via a network and displays electronic information.
Han Jin Cho, Hyun Hun Cho, Se Uk Jeon, Jeong Ho Yoo
Filed: 19 May 23
Utility
Method and Light Device for Programming Light Device Via Encrypted Communication
14 Sep 23
The method for programming a lighting device via encrypted communications includes pairing the lighting device with a user device to connect first radio frequency (RF) communications, receiving information necessary for second encrypted RF communications by a first memory of the lighting device via the first RF communications, connecting second encrypted RF communications between the lighting device and the user device by using the information necessary for the second encrypted RF communications, and receiving encrypted lighting device setting information via the second encrypted RF communications.
Sun Ik KIM
Filed: 1 Mar 23
Utility
Planar Transformer and Bobbin Assembly Applied Thereto
6 Apr 23
The following disclosure relates to a planar transformer and a bobbin assembly applied thereto, and more particularly, to a planar transformer in which pins may be firmly fixed through a bobbin body, a bobbin assembly may be conveniently assembled to a transformer board using snap protrusions of the bobbin body, and a total height of the planar transformer may be lowered using a flange part at the time of mounting the planar transformer, and a bobbin assembly applied thereto.
Yun Sic BANG, Dong Kyun RYU, Yun Seop SHIN, Sang Keun JI
Filed: 2 Mar 22
Utility
Transformer and Power Supplying Device Including the Same
16 Feb 23
A transformer includes: a magnetic core including a lower magnetic structure and an upper magnetic structure; a printed circuit board arranged between the lower magnetic structure and the upper magnetic structure and including a core hole through which a midsection of the magnetic core penetrates, a primary coil, a secondary coil, a primary via-hole formed at an end of the printed circuit board and electrically connected to the primary coil, and a secondary via-hole formed at another end of the printed circuit board and electrically connected to the secondary coil; a primary pin inserted into the primary via-hole; a secondary pin inserted into the secondary via-hole; an insulating block into which a portion of the printed circuit board is inserted; and a mount on which the printed circuit board and the insulating block are mounted.
Chang Yong KWON, Dong Kyun RYU, Yun Sic BANG, Sang Keun JI
Filed: 14 Dec 21
Utility
Coil Structure, Power Factor Correction Circuit Including the Coil Structure, and Power Supply Including the Power Factor Correction Circuit
1 Dec 22
Provided is a coil structure including an inductor coil having a self-bonding wire structure and including a central hole, a detection coil electromagnetically coupled to the inductor coil, a support unit surrounding at least a portion of an outer periphery of the inductor coil, and a housing including an upper magnetic body and a lower magnetic body facing each other in a vertical direction with the inductor coil therebetween to form an inner space in which the inductor coil and the detection coil are provided, the upper magnetic body and the lower magnetic body each including a protrusion inserted into the central hole of the inductor coil.
Chang Yong Kwon, Dong Kyun RYU, Yun Sic BANG
Filed: 10 Sep 21
Utility
Battery Case and Electronic Price Indicator Including the Same
3 Nov 22
A battery case includes: a first battery accommodating portion accommodating at least one first battery; a second battery accommodating portion arranged apart from the first battery accommodating portion and accommodating at least one second battery serially connected with the at least one first battery; a rail arranged between the first battery accommodating portion and the second battery accommodating portion; and a structure configured to move along the rail between the first battery accommodating portion and the second battery accommodating portion and prevent contact between same terminals of the at least one first battery and the at least one second battery at a point at which the at least one first battery and the at least one second battery touch each other.
Sang Baek Park
Filed: 28 Apr 22
Utility
Base and Transformer Device Including the Same
8 Sep 22
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.
Chang Yong KWON, Dong Kyun RYU, Yun Sic BANG
Filed: 25 Jan 22
Utility
Transformer Having Reverse Structure, Power Supply, and Flat Panel Display Device Including the Same
1 Sep 22
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.
Chang Yong KWON, Dong Kyun RYU, Yun Sic BANG
Filed: 21 Feb 22
Utility
Air-pocket Prevention PCB, Air-pocket Prevention PCB Module, Electrical Device Including the Same, and Manufacturing Method of Electrical Device Including the Same
9 Jun 22
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.
Jun Kyu Lee, Jeong Man Han, Su Young Kim, Yong Woo Kang, Sang Keun Ji, Dong Kyun Ryu
Filed: 13 Oct 21
Utility
Electrical Device Having Heat Dissipation Structure Using Filler and Manufacturing Method of the Same
9 Jun 22
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.
Jun Kyu Lee, Jeong Man Han, Su Young Kim, Yong Woo Kang, Sang Keun Ji, Dong Kyun Ryu
Filed: 10 Aug 21
Utility
Electric Appliance and Adapter
2 Jun 22
Young Jun Jang, Hyun Su Kim, Jun Kyu Lee, Pill Ju Kim, Sang Keun Ji, Dong Kyun Ryu
Filed: 18 Nov 21
Utility
Electric Appliance and Adapter
2 Jun 22
Young Jun Jang, Hyun Su Kim, Jun Kyu Lee, Pill Ju Kim, Sang Keun Ji, Dong Kyun Ryu
Filed: 18 Nov 21
Utility
Wireless Charger with Sterilization Function
21 Apr 22
A wireless charger with a sterilization function is provided.
Woochan KWON, Jaisul YU, Hyung Bong JEON
Filed: 9 Aug 21
Utility
Board Coupling Structure with Separate Power Supply Circuit Board
31 Mar 22
Provided is a board coupling structure in which a power supply circuit board is formed as a separate board, more specifically, to a board coupling structure in which a signal processing circuit board for processing signals such as image signals, voice signals, and the like and a power supply circuit board are formed as different types of boards and the different types of boards are laterally coupled to each other.
CHANG MIN SEO
Filed: 9 Dec 21
Utility
Lighting Device and Controlling Method Thereof
3 Feb 22
A lighting device is disclosed.
Jurae KIM, Jeonggye LIM, Eunji KIM
Filed: 17 May 21
Utility
Lighting Device and Controlling Method Thereof
3 Feb 22
Disclosed is a lighting device.
Jurae KIM, Euiseok KIM, Semi Lee
Filed: 17 May 21
Utility
Peg Hook Label Apparatus
3 Feb 22
A peg hook label apparatus includes a body provided with an electronic display unit displaying product information, and a holder provided on one end of the body and configured to have a first width in a portion connected to the body, the first width being greater than a second width of a locking hook disposed on an end portion thereof.
Hyun Hun CHO, Yong Bum LIM, Mi Deum CHOI, Sang Baek PARK
Filed: 10 Nov 20
Utility
Peg Hook Label Apparatus
3 Feb 22
A peg hook label apparatus includes a body provided with an electronic display unit displaying product information, and a holder provided on one end of the body and configured to have a first width in a portion connected to the body, the first width being greater than a second width of a locking hook disposed on an end portion thereof.
Hyun Hun Cho, Yong Bum Lim, Mi Deum Choi, Sang Baek Park
Filed: 2 Aug 21