Patents by Inventor Soon Bae Yang
Soon Bae Yang 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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Patent number: 10420453Abstract: A dishwasher includes a circulation pump that supplies water to nozzles; a drainage pump that discharges the water; a driving current supply unit that supplies a driving current to one of the circulation pump and the drainage pump; a controller that transmits driving control signals to the driving current supply unit; and a door opening detection unit that, if opening of a door is detected, transmits door opening detection signals to the controller and the driving current supply unit, wherein, if the door opening detection signals are received while the circulation pump operates, the driving current supply unit stops supply of the driving current to the circulation pump and supplies the driving current to the drainage pump.Type: GrantFiled: March 20, 2015Date of Patent: September 24, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Se Jin Sohn, Soon Bae Yang
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Patent number: 9350242Abstract: A power supply includes a rectifier circuit to rectify power, a smoothing circuit unit to smoothen a voltage of the rectified power, and a voltage drop circuit unit to drop the smoothened voltage. The voltage drop circuit unit includes an electric charge storage circuit to output the voltage-dropped voltage, a resonance circuit to receive first current from the smoothing circuit unit and to supply second current to the electric charge storage circuit, and a current interruption circuit to control the first current and the second current using zero current switching for performing switching when current does not flow using a resonance circuit.Type: GrantFiled: April 22, 2014Date of Patent: May 24, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Joon Hwan Lee, Min Kwang Lee, Soon Bae Yang, Jae Jin Kim, Dong Gyu Lee, Jung Suk Chu
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Publication number: 20150265132Abstract: A dishwasher includes a circulation pump that supplies water to nozzles; a drainage pump that discharges the water; a driving current supply unit that supplies a driving current to one of the circulation pump and the drainage pump; a controller that transmits driving control signals to the driving current supply unit; and a door opening detection unit that, if opening of a door is detected, transmits door opening detection signals to the controller and the driving current supply unit, wherein, if the door opening detection signals are received while the circulation pump operates, the driving current supply unit stops supply of the driving current to the circulation pump and supplies the driving current to the drainage pump.Type: ApplicationFiled: March 20, 2015Publication date: September 24, 2015Applicant: Samsung Electronics Co., Ltd.Inventors: Se Jin SOHN, Soon Bae YANG
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Publication number: 20140327420Abstract: A power supply includes a rectifier circuit to rectify power, a smoothing circuit unit to smoothen a voltage of the rectified power, and a voltage drop circuit unit to drop the smoothened voltage. The voltage drop circuit unit includes an electric charge storage circuit to output the voltage-dropped voltage, a resonance circuit to receive first current from the smoothing circuit unit and to supply second current to the electric charge storage circuit, and a current interruption circuit to control the first current and the second current using zero current switching for performing switching when current does not flow using a resonance circuit.Type: ApplicationFiled: April 22, 2014Publication date: November 6, 2014Applicant: Samsung Electronics Co., Ltd.Inventors: Joon Hwan LEE, Min Kwang LEE, Soon Bae YANG, Jae Jin KIM, Dong Gyu LEE, Jung Suk CHU
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Patent number: 8719985Abstract: A control method of a washing machine, in which a hydraulic pressure of water supplied into the washing machine is estimated, enabling sensing of a laundry weight and measurement of a supply amount of the water. The control method includes calculating a first water supply time required to initially supply water to a setup water level, calculating a second water supply time required to additionally supply water according to a variation in water level due to laundry wetting after the initial supply of water, sensing a laundry weight according to a ratio of the first water supply time to the second water supply time, and measuring a flow rate of water using the amount of water supplied to the setup water level and the laundry weight data.Type: GrantFiled: May 13, 2009Date of Patent: May 13, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Chang Joo Park, Soon Bae Yang, Jun Hyun Park, Jung Chul Choi
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Patent number: 8122549Abstract: Disclosed herein are a washing machine that is capable of maintaining the balanced state of laundry to more smoothly perform a spin-drying operation and a control method thereof. The control method of the washing machine including a drum to receive laundry and a motor to rotate the drum to reduce unbalance generated due to the nonuniform distribution of the laundry, includes wrapping the laundry by accelerating the drum such that the laundry sticks to an inner wall of the drum, detecting motor current during the wrapping of the laundry, determining an unbalanced state of the laundry based on the detected motor current, and controlling speed of the drum based on a result of the determination.Type: GrantFiled: April 2, 2008Date of Patent: February 28, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Chang Joo Park, Soon Bae Yang, Jung Chul Choi
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Publication number: 20100011514Abstract: A control method of a washing machine, in which a hydraulic pressure of water supplied into the washing machine is estimated, enabling sensing of a laundry weight and measurement of a supply amount of the water. The control method includes calculating a first water supply time required to initially supply water to a setup water level, calculating a second water supply time required to additionally supply water according to a variation in water level due to laundry wetting after the initial supply of water, sensing a laundry weight according to a ratio of the first water supply time to the second water supply time, and measuring a flow rate of water using the amount of water supplied to the setup water level and the laundry weight data.Type: ApplicationFiled: May 13, 2009Publication date: January 21, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Joo Park, Soon Bae Yang, Jun Hyun Park, Jung Chul Choi
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Patent number: 7484258Abstract: A method and an apparatus for detecting a laundry weight of a washing machine can correctly detect a laundry weight of a washing machine. To this end, a motor of a washing machine is driven at a first speed and then at a second speed, and a laundry weight is detected on the basis of a value of a first current for driving the motor at the first speed and a value of a second current for driving the motor at the second speed.Type: GrantFiled: July 22, 2004Date of Patent: February 3, 2009Assignee: LG Electronics Inc.Inventors: Tae-Kyoung Kim, Soon-Bae Yang, Kwan-Yuhl Cho
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Publication number: 20080289118Abstract: Disclosed herein are a washing machine that is capable of maintaining the balanced state of laundry to more smoothly perform a spin-drying operation and a control method thereof. The control method of the washing machine including a drum to receive laundry and a motor to rotate the drum to reduce unbalance generated due to the nonuniform distribution of the laundry, includes wrapping the laundry by accelerating the drum such that the laundry sticks to an inner wall of the drum, detecting motor current during the wrapping of the laundry, determining an unbalanced state of the laundry based on the detected motor current, and controlling speed of the drum based on a result of the determination.Type: ApplicationFiled: April 2, 2008Publication date: November 27, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Chang Joo Park, Soon Bae Yang, Jung Chul Choi
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Patent number: 7259533Abstract: Disclosed is a method of controlling drive speed of a motor operating in overload conditions. The method includes the steps of: driving the motor at a predetermined reference speed; detecting phase voltage and phase current applied to the motor; determining whether or not the motor is operating in overload conditions based on the detected phase voltage and phase current; and controlling the motor according to whether or not the motor is operating in overload conditions. Accordingly, the present invention can prevent occurrence of over-current due to the instantaneous acceleration of the motor to a predetermined initial speed.Type: GrantFiled: November 4, 2005Date of Patent: August 21, 2007Assignee: LG Electronics Inc.Inventors: Soon-bae Yang, Tae-kyung Kim, Sung-min Park, Tae-won Kim
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Patent number: 7224177Abstract: An apparatus and method for determining the presence or absence in a motor lock error in a sensorless motor. The method includes the steps of: driving the sensorless motor; determining whether or not a predetermined time elapses after the sensorless motor has been driven; measuring a current applied to the sensorless motor after the lapse of the predetermined time; calculating a difference between the measured current with a predetermined reference current; and determining the presence or absence of a motor lock error in the sensorless motor by determining whether the determined difference is equal to or higher than a predetermined reference difference, so that it quickly determines the presence or absence of a motor lock error in the sensorless motor without using a sensor and prevents an overcurrent from flowing in the sensorless motor, resulting in the prevention of a faulty operation or damage to the sensorless motor.Type: GrantFiled: January 14, 2005Date of Patent: May 29, 2007Assignee: LG Electronics Inc.Inventors: Tae Kyoung Kim, Soon Bae Yang, Kwan Yuhl Cho
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Patent number: 7161325Abstract: A lead-angle control device according to the present invention includes: a space voltage vector controller calculating effective vector application times necessary for obtaining output voltage vectors of an inverter from stationary-coordinate-system instruction voltage components; a lead-angle compensator comparing the sum of the effective vector application times with a sampling period, and generating lead-angle compensation values; a speed controller generating an instruction current for compensating an error caused by a difference between an instruction speed and a current speed; an instruction current generator which generates a rotating-coordinate-system instruction current component by extracting a lead-angle component at a point where maximum torque-per-ampere can be obtained from the magnitude of the instruction current and performing a mathematical calculation on the magnitude of the instruction current and a lead-angle component; and an instruction voltage generator generating a stationary-coordinatType: GrantFiled: November 4, 2005Date of Patent: January 9, 2007Assignee: LG Electronics Inc.Inventors: Soon-bae Yang, Sung-min Park, Tae-won Kim, Tae-kyung Kim
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Publication number: 20060132074Abstract: A lead-angle control device according to the present invention includes: a space voltage vector controller calculating effective vector application times necessary for obtaining output voltage vectors of an inverter from stationary-coordinate-system instruction voltage components; a lead-angle compensator comparing the sum of the effective vector application times with a sampling period, and generating lead-angle compensation values; a speed controller generating an instruction current for compensating an error caused by a difference between an instruction speed and a current speed; an instruction current generator which generates a rotating-coordinate-system instruction current component by extracting a lead-angle component at a point where maximum torque-per-ampere can be obtained from the magnitude of the instruction current and performing a mathematical calculation on the magnitude of the instruction current and a lead-angle component; and an instruction voltage generator generating a stationary-coordinatType: ApplicationFiled: November 4, 2005Publication date: June 22, 2006Applicant: LG Electronics Inc.Inventors: Soon-bae Yang, Sung-min Park, Tae-won Kim, Tae-kyung Kim
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Publication number: 20060119302Abstract: Disclosed is a method of controlling drive speed of a motor operating in overload conditions. The method includes the steps of: driving the motor at a predetermined reference speed; detecting phase voltage and phase current applied to the motor; determining whether or not the motor is operating in overload conditions based on the detected phase voltage and phase current; and controlling the motor according to whether or not the motor is operating in overload conditions. Accordingly, the present invention can prevent occurrence of over-current due to the instantaneous acceleration of the motor to a predetermined initial speed.Type: ApplicationFiled: November 4, 2005Publication date: June 8, 2006Applicant: LG Electronics Inc.Inventors: Soon-bae Yang, Tae-kyung Kim, Sung-min Park, Tae-won Kim
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Publication number: 20050015890Abstract: A method and an apparatus for detecting a laundry weight of a washing machine can correctly detect a laundry weight of a washing machine. To this end, a motor of a washing machine is driven at a first speed and then at a second speed, and a laundry weight is detected on the basis of a value of a first current for driving the motor at the first speed and a value of a second current for driving the motor at the second speed.Type: ApplicationFiled: July 22, 2004Publication date: January 27, 2005Applicant: LG Electronics Inc.Inventors: Tae-Kyoung Kim, Soon-Bae Yang, Kwan-Yuhl Cho
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Apparatus and method for detecting laundry weight in washing machine employing sensorless BLDC motor
Patent number: 6842928Abstract: An improved method for detecting a laundry weight in a washing machine employing a sensorless BLDC motor is provided. The motor is rotated until the washer reaches a first speed. The washer then operates in a torque control mode for a predetermined amount of time, and a laundry weight is then determined based on a speed of the motor after the predetermined amount of time has elapsed. In this manner, laundry weight can be accurately determined and the laundry can be effectively washed. Additionally, since a washing machine employing this improved method for detecting does not require a hall sensor and its peripheral circuit manufacture is simplified, and thus cost may be reduced.Type: GrantFiled: December 13, 2001Date of Patent: January 18, 2005Assignee: LG Electronics Inc.Inventors: Soon Bae Yang, Kwan Yeul Cho, Chan Hee Hong -
Patent number: 6747435Abstract: Disclosed is an apparatus controlling an operation of a motor and control method thereof enabling to prevent a driving force of the motor from being reduced and actuate the motor for hours stably when a washing machine is operated for hours. The present invention includes the steps of detecting a phase voltage value and a phase current value applied to the motor between forward and backward revolution sections of the motor, calculating a phase resistance value based on the detected phase voltage and current values, and controlling the operation of the motor by controlling a voltage applied to the motor in accordance with the calculated phase resistance value.Type: GrantFiled: December 3, 2001Date of Patent: June 8, 2004Assignee: LG Electronics Inc.Inventors: Soon Bae Yang, Kwan Yeul Cho, Chan Hee Hong
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Apparatus and method for detecting laundry weight in washing machine employing sensorless BLDC motor
Publication number: 20030009832Abstract: A method for detecting a laundry weight in a washing machine employing a sensorless BLDC motor includes the steps of: determining whether a first predetermined time elapses after a motor is initiated and reaches a certain speed; and controlling the motor in a torque control mode when the first predetermined time elapses and detecting a laundry weight on the basis of the motor speed after a second predetermined time elapses. A laundry weight can be accurately measured and the laundry can be effectively washed even in an environment that a voltage is not regularly applied. In addition, since the laundry weight detecting apparatus of a washing machine employing the sensorless BLDC motor does not include a hall sensor and its peripheral circuit, its construction is simple and thus its price can be reduced.Type: ApplicationFiled: December 13, 2001Publication date: January 16, 2003Applicant: LG ElectronicsInventors: Soon Bae Yang, Kwan Yeul Cho, Chan Hee Hong -
Publication number: 20030001537Abstract: Disclosed is an apparatus controlling an operation of a motor and control method thereof enabling to prevent a driving force of the motor from being reduced and actuate the motor for hours stably when a washing machine is operated for hours. The present invention includes the steps of detecting a phase voltage value and a phase current value applied to the motor between forward and backward revolution sections of the motor, calculating a phase resistance value based on the detected phase voltage and current values, and controlling the operation of the motor by controlling a voltage applied to the motor in accordance with the calculated phase resistance value.Type: ApplicationFiled: December 3, 2001Publication date: January 2, 2003Applicant: LG ELECTRONICS INC.Inventors: Soon Bae Yang, Kwan Yeul Cho, Chan Hee Hong
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Patent number: 6388903Abstract: Disclosed are a voltage compensating apparatus and method for a 3-phase inverter using four switches, to compensate for a severe distortion of a 3-phase application voltage due to a voltage ripple.Type: GrantFiled: May 10, 2001Date of Patent: May 14, 2002Assignee: LG Electronics Inc.Inventors: Dong Myung Lee, Jae Yoon Oh, Dal Ho Cheong, Soon Bae Yang