Patents by Inventor Sug Chin Sakong
Sug Chin Sakong 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).
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Publication number: 20160301755Abstract: A method for controlling scan of slave devices, comprising: requesting, by a master, each slave to provide its device feature information; acquiring the device feature information provided by each slave in response to the request; sending, by a master, the acquired device feature information to the relevant slave to request the slave to confirm the information; registering the device feature information of the slave having sent an acknowledgement for the confirmation request as base information of the relevant slave; and repeating a scan process performing the above operations described above for each slave predefined N times.Type: ApplicationFiled: May 14, 2015Publication date: October 13, 2016Applicant: INTER. M CORPORATIONInventors: Seung Jun LEE, Sug Chin SAKONG
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Patent number: 8274805Abstract: There is provided a high voltage power supply capable of reducing voltage stress of a voltage multiplying device. The high voltage power supply includes: a power converter switching on/off and converting an input direct current power into a direct current power having a preset voltage level; and a voltage multiplier including a first multiplying cell multiplying the voltage level of the direct current power from the power converter, wherein the first multiplying cell includes: first and second capacitors charging the direct current power from the power converter, respectively; a first diode providing a path for transferring the direct current power when the power converter is switched off; and a second diode providing a path for transferring the direct current power when the power converter is switched on.Type: GrantFiled: October 27, 2008Date of Patent: September 25, 2012Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jin Wook Kim, Sug Chin Sakong, Sung Soo Hong, Sang Kyoo Han, Chung Wook Roh, Jong Sun Kim, Dong Seong Oh, Jae Sun Won, Jong Hae Kim
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Patent number: 7915757Abstract: Disclosed is a multi-output DC/DC converter controlling power-conversion switching in synchronization with a frequency of one output voltage among multiple output voltages in an LLC resonant DC/DC converter. The multi-output DC/DC converter includes a power conversion circuit performing alternate switching on an input DC voltage to output multiple DC voltages including a first DC voltage and a second DC voltage each having a preset voltage level, and a control circuit controlling the alternate switching of the power conversion circuit in synchronization with a preset resonant frequency.Type: GrantFiled: October 1, 2008Date of Patent: March 29, 2011Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jong Hae Kim, Sug Chin Sakong, Sung Soo Hong, Chung Wook Roh, Sang Kyoo Han, Jong Sun Kim, Dong Seong Oh
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Patent number: 7663322Abstract: There is provided a backlight driving system for a liquid crystal display that can reduce size and weight of a product because a DC-DC converter is not used when commercial AC power is converted into lamp driving power. A backlight driving system for a liquid crystal display according to an aspect of the invention includes a power supply unit converting commercial alternating current (AC) power into direct current (DC) power having a voltage level set beforehand, an inverter unit converting the DC power from the power supply unit into AC power at a one-to-one conversion ratio set beforehand, a boosting unit boosting the AC power from the inverter unit into lamp lighting power set beforehand; and a lamp group receiving the lamp lighting power from the boosting unit to emit light.Type: GrantFiled: March 7, 2008Date of Patent: February 16, 2010Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jin Wook Kim, Dong Seong Oh, Jong Duck Kim, Sug Chin Sakong, Sung Soo Hong, Sang Kyoo Han, Chung Wook Roh, Dea Min Jang, Sung Ho Kim, Jin Woo Cho, Kwang Seung Cho
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Patent number: 7616086Abstract: There is provided an integrated type transformer that reduces the volume by integrating a plurality of transformers transmitting power for driving a plurality of lamps in an inverter circuit for an LCD into one transformer structure. An integrated type transformer according to an aspect of the invention includes a bobbin unit including a bobbin body having a predetermined length and a through hole therein in a longitudinal direction of the bobbin unit, and a core unit including an inner core inserted into the through hole of the bobbin unit, and an outer core formed along one surface in the longitudinal direction among outer circumferential surfaces of the bobbin unit and electromagnetically coupled to the inner core to form one magnetic path.Type: GrantFiled: December 26, 2007Date of Patent: November 10, 2009Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Gie Hyoun Kweon, Sug Chin Sakong, Chung Wook Roh, Sang Kyoo Han, Sung Soo Hong, Jong Rak Kim
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Publication number: 20090251120Abstract: There is provided a high voltage power supply capable of reducing voltage stress of a voltage multiplying device. The high voltage power supply includes: a power converter switching on/off and converting an input direct current power into a direct current power having a preset voltage level; and a voltage multiplier including a first multiplying cell multiplying the voltage level of the direct current power from the power converter, wherein the first multiplying cell includes: first and second capacitors charging the direct current power from the power converter, respectively; a first diode providing a path for transferring the direct current power when the power converter is switched off; and a second diode providing a path for transferring the direct current power when the power converter is switched on.Type: ApplicationFiled: October 27, 2008Publication date: October 8, 2009Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jin Wook KIM, Sug Chin SAKONG, Sung Soo HONG, Sang Kyoo HAN, Chung Wook ROH, Jong Sun KIM, Dong Seong OH, Jae Sun WON, Jong Hae KIM
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Publication number: 20090243388Abstract: Disclosed is a multi-output DC/DC converter controlling power-conversion switching in synchronization with a frequency of one output voltage among multiple output voltages in an LLC resonant DC/DC converter. The multi-output DC/DC converter includes a power conversion circuit performing alternate switching on an input DC voltage to output multiple DC voltages including a first DC voltage and a second DC voltage each having a preset voltage level, and a control circuit controlling the alternate switching of the power conversion circuit in synchronization with a preset resonant frequency.Type: ApplicationFiled: October 1, 2008Publication date: October 1, 2009Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Jong Hae KIM, Sug Chin Sakong, Sung So Hong, Chung Wook Roh, Sang Kyoo Han, Jong Sun Kim, Dong Seong Oh
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Patent number: 7505289Abstract: Provided is a flyback DC/DC converter for a power supply. In the flyback DC/DC converter, a flyback driver unit provides a primary current. A transformer includes a plurality of secondary coils for inducing energy from the primary coil receiving the primary current. A rectifier unit includes a plurality of rectifier diodes for rectifying secondary currents of the corresponding secondary coils of the transformer. A plurality of clamp diodes are connected in series to the corresponding rectifier diodes of the rectifier unit in a forward direction to clamp ringing voltage across the corresponding rectifier diodes when the power switch is turned off. Accordingly, the voltage across the rectifier diode on the secondary side can be reduced such that it is lower than the output voltage. Also, it is possible to remove the ringing voltage of the rectifier diode and to enhance the efficiency of the flyback DC/DC converter.Type: GrantFiled: November 30, 2006Date of Patent: March 17, 2009Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Don Sik Kim, Sug Chin Sakong, Sung Soo Hong, Chung Wook Roh, Sang Kyoo Han, Young Seung Roh, Kwang Seung Cho
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Publication number: 20090021179Abstract: There is provided a backlight driving system for a liquid crystal display that can reduce size and weight of a product because a DC-DC converter is not used when commercial AC power is converted into lamp driving power. A backlight driving system for a liquid crystal display according to an aspect of the invention includes a power supply unit converting commercial alternating current (AC) power into direct current (DC) power having a voltage level set beforehand, an inverter unit converting the DC power from the power supply unit into AC power at a one-to-one conversion ratio set beforehand, a boosting unit boosting the AC power from the inverter unit into lamp lighting power set beforehand; and a lamp group receiving the lamp lighting power from the boosting unit to emit light.Type: ApplicationFiled: March 7, 2008Publication date: January 22, 2009Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Jin Wook KIM, Dong Seong Oh, Jong Duck Kim, Sug Chin Sakong, Sung Soo Hong, Sang Kyoo Han, Chung Wook Roh, Dea Min Jang, Sung Ho Kim, Jin Woo Cho, Kwang Seung Cho
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Publication number: 20080231404Abstract: There is provided an integrated type transformer that reduces the volume by integrating a plurality of transformers transmitting power for driving a plurality of lamps in an inverter circuit for an LCD into one transformer structure. An integrated type transformer according to an aspect of the invention includes a bobbin unit including a bobbin body having a predetermined length and a through hole therein in a longitudinal direction of the bobbin unit, and a core unit including an inner core inserted into the through hole of the bobbin unit, and an outer core formed along one surface in the longitudinal direction among outer circumferential surfaces of the bobbin unit and electromagnetically coupled to the inner core to form one magnetic path.Type: ApplicationFiled: December 26, 2007Publication date: September 25, 2008Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Gie Hyoun KWEON, Sug Chin Sakong, Chung Wook Roh, Sang Kyoo Han, Sung Soo Hong, Jong Rak Kim
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Publication number: 20070183172Abstract: Provided is a flyback DC/DC converter for a power supply. In the flyback DC/DC converter, a flyback driver unit provides a primary current. A transformer includes a plurality of secondary coils for inducing energy from the primary coil receiving the primary current. A rectifier unit includes a plurality of rectifier diodes for rectifying secondary currents of the corresponding secondary coils of the transformer. A plurality of clamp diodes are connected in series to the corresponding rectifier diodes of the rectifier unit in a forward direction to clamp ringing voltage across the corresponding rectifier diodes when the power switch is turned off. Accordingly, the voltage across the rectifier diode on the secondary side can be reduced such that it is lower than the output voltage. Also, it is possible to remove the ringing voltage of the rectifier diode and to enhance the efficiency of the flyback DC/DC converter.Type: ApplicationFiled: November 30, 2006Publication date: August 9, 2007Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Don Sik KIM, Sug Chin Sakong, Sung Soo Hong, Chung Wook Roh, Sang Kyoo Han, Young Seung Roh, Kwang Seung Cho