Tae Suk
Tae Suk Bae, Cheonan-Si KR
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20150138849 | PRE-CHARGING CIRCUIT OF INVERTER - A pre-charging circuit of inverter is disclosed, the pre-charging circuit of inverter including a relay arranged between an output node of the rectifier and an input node of the DC-link capacitor, and a pre-charging resistor arranged between an output node of the rectifier and an input node of the inverter unit, whereby a degree of freedom for PCB design can be obtained. | 05-21-2015 |
20150138854 | APPARATUS AND METHOD FOR DETECTING OUTPUT PHASE DEFICIENCY IN INVERTER - An apparatus and a method for detecting phase deficiency in an inverter is provided, the method including deciding whether a sector of the output current is a sector where current detection is possible based on switching operation status of the switching element in the inverter, maintaining a phase deficiency variable when deciding the current detection in the sector of the output current to be impossible, adding a count to a phase deficiency variable to accumulate when deciding the current detection in the sector of the output current to be possible and deciding the output current to be within a phase deficiency band, and determining as phase deficiency when the phase deficiency variable is greater than a prescribed detection level. | 05-21-2015 |
Tae Suk Oh, Seoul KR
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20130091053 | APPARATUS FOR PROVIDING SERVICE LINKING CLOSED USER GROUPS BASED ON SMART TELEVISION AND SMART SET-TOP BOX - Provided is an apparatus for providing a service that links closed user groups (CUGs) based on a smart TV and a smart set-top box. A server may provide at least one application (app) store: The app store may register apps provided by developers, and may provide the registered apps to users of a CUG. The app retriever may provide a result of inquiry and retrieval performed with respect to apps registered in the at least one app store, to a terminal that performs the inquiry and retrieval. The terminal distributed for a predetermined CUG service may use apps associated with varied CUG services through the server. | 04-11-2013 |
20140089963 | METHOD OF MANAGING MULTIPLE CONTENT SERVERS - A method of managing multiple content servers to provide a portal service is provided. Personal information on a user managed by the portal service is mutually used by a plurality of content servers to authenticate or identify the user. The content servers use an ID of a set-top box and an integrated ID of the user transmitted from the set-top box so as to identify a particular user and a set-top box of the user among users provided with a plurality of services. | 03-27-2014 |
Tae Suk Seo, Seoul KR
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20080264929 | Plate-Type Heater and a Method for the Manufacture Thereof - The present invention provides a plate-type heater designed to allow uniform generation of heat across the entire surface of the heater, comprising an upper component composed of a first outer covering and a first intermediate layer joined together and a lower component composed of a second outer covering and a second intermediate layer joined together, with a heating element being placed between said upper component and lower component and wires laminated onto the two end surfaces of said heating element. | 10-30-2008 |
Tae Suk Yun, Cheonan-Si KR
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20140290698 | CHEMICAL SUPPLYING UNIT, SUBSTRATE TREATMENT APPARATUS, AND METHOD OF TREATING SUBSTRATE USING THE SUBSTRATE TREATMENT APPPARATUS - Provided is a substrate treatment apparatus including a housing, a supporting unit located inside the housing and supporting a substrate, a nozzle unit supplying chemicals to the substrate disposed on the supporting unit, and a chemical supplying unit supplying the chemicals to the nozzle unit. Herein, the chemical supplying unit includes a chemical supply source, a first tank and a second tank storing the chemicals, a chemical supplying line supplying the chemicals from the chemical supply source to the first tank and the second tank, a chemical discharge line supplying the chemicals from the first tank and the second tank to the nozzle unit, a circulation line allowing the chemicals to circulate through the first tank and the second tank, respectively, a member installed on the circulation line, and a controller controlling the member. | 10-02-2014 |
Tae-Suk Jang, Cheonan KR
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20160104573 | METHOD FOR MANUFACTURING PERMANENT MAGNET - Provided is a method for manufacturing an Nd—Fe—B-based permanent magnet having an improved coercive force while reducing the amount of Dy used. A method for manufacturing a permanent magnet according to an embodiment of the present invention may comprise the steps of: preparing powder including Nd, Fe, B, and Cu; preparing a shaped body by forming a specific magnetic field in the powder; sintering the shaped body at a specific sintering temperature; and subjecting the sintered, shaped body to annealing at a annealing temperature determined according to the content of Cu. | 04-14-2016 |
Tae-Suk Kim, Cheongju-Si KR
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20130147441 | Automatic Tuning Method for Energy Storage System of Railway Vehicle - An automatic tuning method is developed for an energy storage system of the railway vehicle. The method comprises; an optimal tracking for voltage fluctuation in the overhead line voltage varying with hourly-basis, the voltage variation of the substation and railway vehicle operating pattern. The railway vehicle is automatically performed the tuning to maximize the energy storing efficiency. The railway vehicle can achieve the optimum operation for saving energy effectively by bidirectional DC/DC converter using regenerative energy of DC. The railway vehicle stably operates under the overhead line voltage fluctuation. The energy efficiency is maximized by charging/discharging energy while the power is tracking unstable, which is generated by utilizing natural energies such as wind or solar energy, in real time by applying an automatic tuning algorithm to an energy storage system which is applied to a smart grid or a micro grid that uses renewable energy as a primary energy source. | 06-13-2013 |
20130166232 | Power Quality Monitoring Apparatus for Railway Power System - A power quality monitoring apparatus is developed for a railway power system. The apparatus is calculating the energy flow and the power consumption and recording the by using the voltage and current sensors at AC and DC power source in the various industrial fields. The voltage and current phases are detected for the AC power. The direction of current is detected to calculate the power consumption for the DC power. Then, the detected data is analyzed. It is possible to monitor the variation of the voltages and current values of the railway vehicle in real time. It is possible to display the variations of the vehicle loads, the AC power output, the voltage and current value fluctuations, the power consumption and power flows in a form of the graphic or text format. Thereby, it is possible to easily understand the overall status of the overhead line's environment. | 06-27-2013 |
20130175855 | Energy Storage Apparatus for Railway Vehicles by Adopting a Bidirectional DC-DC Converter - An energy storage apparatus has developed for railway vehicles by adopting a bidirectional DC-DC converter to increase the efficiency of charge/discharge, comprising that; a power receiving unit, filter unit, charging unit storage unit having a plurality of super-capacitors, capacitor monitoring unit, a plurality of bidirectional DC-DC converters arranged in parallel, and voltage detector electrically connected to the filter unit, current detector for detecting the currents flowing. The controller further comprises; an analog interface board, signal identifying board, signal control board, digital output contact unit, communicating board, PWM control board, optical output board, external gate driver. The PWM control board includes; a sensor input circuit, A/D converter, calculation unit, calculation control processor, and power monitoring unit. It is easy to add a storage unit including supercapacitor in a form of box module for increasing capacity and efficient of charging/discharging of the storage unit through various sensors and signal checking. | 07-11-2013 |
Tae-Suk Lee, Daejeon KR
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20140243548 | PREPARATION METHOD OF 1-PALMITOYL-3-ACETYLGLYCEROL, AND PREPARATION METHOD OF 1-PALMITOYL-2-LINOLEOYL-3-ACETYLGLYCEROL USING SAME - Disclosed are a method for preparing 1-palmitoyl-3-acetylglycerol in high purity and high yield without a purification process using a column chromatography, and a method for preparing 1-palmitoyl-2-linoleoyl-3-acetylglycerol in high purity and high yield using the same as a key intermediate. The method for preparing 1-palmitoyl-3-acetyl glycerol comprises the steps of: forming a reaction mixture including 1-palmitoyl-3-acetyl glycerol of the Formula 1 in the specification by reacting 1-palmitoylglycerol of the Formula 2 in the specification and an acetylating agent; and separating the optically active 1-palmitoyl-3-acetylglycerol by crystallizing the reaction mixture in a saturated hydrocarbon solvent having 5 to 7 carbon atoms. | 08-28-2014 |
20150266803 | METHOD FOR PREPARING MONOACETYGLYCEROLS AND ESTERS THEREOF - Disclosed are a method for preparing 1-acyl-3-acetylglycerol in high purity and high yield without a purification process using a column chromatography, and a method for preparing 1,2-diacyl-3-acetylglycerol in high purity and high yield using the same as a key intermediate. The method includes the steps of: forming a reaction mixture including 1-acyl-3-acetyl glycerol of the Formula 1 in the specification by reacting 1-acylglycerol of the Formula 2 in the specification and an acetylating agent; and separating the racemic or optically active 1-acyl-3-acetylglycerol by crystallizing the reaction mixture in a saturated hydrocarbon solvent having 5 to 7 carbon atoms. | 09-24-2015 |
20160083329 | PREPARATION METHOD OF 1-PALMITOYL-3-ACETYLGLYCEROL, AND PREPARATION METHOD OF 1-PALMITOYL-2-LINOLEOYL-3-ACETYLGLYCEROL USING SAME - Disclosed are a method for preparing 1-palmitoyl-3-acetylglycerol in high purity and high yield without a purification process using a column chromatography, and a method for preparing 1-palmitoyl-2-linoleoyl-3-acetylglycerol in high purity and high yield using the same as a key intermediate. The method for preparing 1-palmitoyl-3-acetyl glycerol comprises the steps of: forming a reaction mixture including 1-palmitoyl-3-acetyl glycerol of the Formula 1 in the specification by reacting 1-palmitoylglycerol of the Formula 2 in the specification and an acetylating agent; and separating the optically active 1-palmitoyl-3-acetylglycerol by crystallizing the reaction mixture in a saturated hydrocarbon solvent having 5 to 7 carbon atoms. | 03-24-2016 |