Patents by Inventor Chung-An Hsieh
Chung-An Hsieh 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: 12265106Abstract: The present disclosure provides a power control system for motor preheating including a current sensor, a power calculation module, a power error calculation module, a power control module, a current control module and a voltage control module. The current sensor senses a motor current output by the motor. The power calculation module calculates an output power of the motor according to the voltage command and the motor current. The power error calculation module calculates a power error according to a power command and the output power. The power control module outputs a current braking command according to the power error. The current control module calculates a voltage command according to the current braking command and the motor current. The voltage control module outputs a three-phase voltage according to the voltage command, and the motor is operated in a stationary state, and the stator of the motor is preheated.Type: GrantFiled: March 6, 2023Date of Patent: April 1, 2025Assignee: Delta Electronics, Inc.Inventor: Chung-An Hsieh
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Publication number: 20240125829Abstract: The present disclosure provides a power control system for motor preheating including a current sensor, a power calculation module, a power error calculation module, a power control module, a current control module and a voltage control module. The current sensor senses a motor current output by the motor. The power calculation module calculates an output power of the motor according to the voltage command and the motor current. The power error calculation module calculates a power error according to a power command and the output power. The power control module outputs a current braking command according to the power error. The current control module calculates a voltage command according to the current braking command and the motor current. The voltage control module outputs a three-phase voltage according to the voltage command, and the motor is operated in a stationary state, and the stator of the motor is preheated.Type: ApplicationFiled: March 6, 2023Publication date: April 18, 2024Inventor: Chung-An Hsieh
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Patent number: 11479126Abstract: A system for compensating acceleration of electrical motorbike includes a throttle unit and an electro-mechanic assembly. After the electrical motorbike starts, the throttle unit receives external operation from a rider for generating a series of original throttle signal. An acceleration compensating module calculates a throttle variation rate based on the original throttle signal and variation of a throttle operation magnitude, and calculates a throttle compensating value based on the throttle variation rate when the throttle variation rate is larger than or equal to a correction threshold. A throttle compensating module receives and sums the original throttle signal and the throttle compensating value up for generating a new throttle signal. A torque controller generates a corresponding torque command based on the new throttle signal, and outputs the torque command to the electro-mechanic assembly for operation.Type: GrantFiled: July 26, 2019Date of Patent: October 25, 2022Assignees: DELTA ELECTRONICS, INC., KWANG YANG MOTOR CO., LTD.Inventors: Chien-Ping Huang, Chung-An Hsieh, Hsiang-Hsi Huang, Cheng-Hsien Huang
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Publication number: 20200307388Abstract: A system for compensating acceleration of electrical motorbike includes a throttle unit and an electro-mechanic assembly. After the electrical motorbike starts, the throttle unit receives external operation from a rider for generating a series of original throttle signal. An acceleration compensating module calculates a throttle variation rate based on the original throttle signal and variation of a throttle operation magnitude, and calculates a throttle compensating value based on the throttle variation rate when the throttle variation rate is larger than or equal to a correction threshold. A throttle compensating module receives and sums the original throttle signal and the throttle compensating value up for generating a new throttle signal. A torque controller generates a corresponding torque command based on the new throttle signal, and outputs the torque command to the electro-mechanic assembly for operation.Type: ApplicationFiled: July 26, 2019Publication date: October 1, 2020Inventors: Chien-Ping HUANG, Chung-An HSIEH, Hsiang-Hsi HUANG, Cheng-Hsien HUANG
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Patent number: 9858671Abstract: The present invention provides measuring apparatus and method for three-dimensional profilometry of an object, wherein a random-speckle beam and a structured fringe beam are projected onto the object and reflected therefrom for forming deformed random-speckle beam and structured fringe beams that are separately acquired by an image acquiring device thereby obtaining a random-speckle image utilized to determine an absolute phase information of each position on the surface of the object, and a structured fringe image utilized to determine a relative phase information for each position of the surface of the object. Each absolute phase information and each relative phase information corresponding to each position are converted into an absolute depth and a relative depth, respectively. Finally, the depth information of each position on the surface of the object is calculated by combining the corresponding absolute depth and the relative depth whereby the surface profile of the object can be established.Type: GrantFiled: September 11, 2014Date of Patent: January 2, 2018Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Liang-Chia Chen, Chung-An Hsieh, Ming-Xuan Weng
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Publication number: 20150070472Abstract: The present invention provides measuring apparatus and method for three-dimensional profilometry of an object, wherein a random-speckle beam and a structured fringe beam are projected onto the object and reflected therefrom for forming deformed random-speckle beam and structured fringe beams that are separately acquired by an image acquiring device thereby obtaining a random-speckle image utilized to determine an absolute phase information of each position on the surface of the object, and a structured fringe image utilized to determine a relative phase information for each position of the surface of the object. Each absolute phase information and each relative phase information corresponding to each position are converted into an absolute depth and a relative depth, respectively. Finally, the depth information of each position on the surface of the object is calculated by combining the corresponding absolute depth and the relative depth whereby the surface profile of the object can be established.Type: ApplicationFiled: September 11, 2014Publication date: March 12, 2015Inventors: Liang-Chia CHEN, Chung-An HSIEH, Ming-Xuan WENG
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Publication number: 20140196566Abstract: A rotation assembly includes a sleeve, a catch and an elastic member, the sleeve comprises a central longitudinal axis, a ring wall, a first through hole and a constraining slot having a planar surface. The central longitudinal axis is surrounded by the ring wall, and the first through hole and the constraining slot are formed at the ring wall. The elastic member comprises a free end and a limiting end, the free end is engaged with the catch, and the limiting end is limited by the constraining slot to prevent the elastic member from separating from the sleeve while the rotation assembly is impact by an external force.Type: ApplicationFiled: March 14, 2013Publication date: July 17, 2014Applicant: TAIWAN FU HSING INDUSTRIAL CO., LTD.Inventors: Chung-An Hsieh, Jiun-Nan Shiu
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Patent number: 8154342Abstract: A processing device including a control unit and a power amplifier is disclosed. The control unit generates a plurality of control signals according to an input signal. The power amplifier includes a plurality of switches. The control signals control the switches to turn on or off such that a short through current does not occur in the power amplifier.Type: GrantFiled: August 9, 2010Date of Patent: April 10, 2012Assignee: UPI Semiconductor CorporationInventor: Chung-An Hsieh
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Publication number: 20110304396Abstract: A processing device including a control unit and a power amplifier is disclosed. The control unit generates a plurality of control signals according to an input signal. The power amplifier includes a plurality of switches. The control signals control the switches to turn on or off such that a short through current does not occur in the power amplifier.Type: ApplicationFiled: August 9, 2010Publication date: December 15, 2011Inventor: Chung-An HSIEH
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Patent number: 7679451Abstract: A power supply device for driving an amplifier includes a power generator for providing a first voltage for a first power reception end of the amplifier, a power conversion unit coupled to the power generator, for converting the first voltage into a second voltage, a charge pump coupled between the power conversion unit and a second power reception end of the amplifier, for generating a third voltage for the amplifier according to the second voltage, and a control unit coupled to the power conversion unit, for controlling the power conversion unit, so as to adjust the second voltage to make the third voltage equal to a specific multiple of the first voltage.Type: GrantFiled: April 18, 2008Date of Patent: March 16, 2010Assignee: Anpec Electronics CorporationInventors: Fu-Yuan Chen, Chung-An Hsieh, Yueh-Ping Yu
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Patent number: 7667543Abstract: A power supply device for driving first and second amplifiers includes a first power generator, a second power generator, a charge pump and a control unit. The first power generator provides a first voltage for first power reception ends of the first and second amplifiers. The second power generator provides a second voltage. The charge pump is coupled between the second power generator and a second power reception end of the first amplifier and between the second power generator and a second power reception end of the second amplifier, and is used for generating a third voltage for the first and second amplifiers according to the second voltage. The control unit is coupled to the second power generator and is used for controlling the second power generator, so as to adjust the second voltage to make the third voltage equal to a multiple of the first voltage.Type: GrantFiled: April 18, 2008Date of Patent: February 23, 2010Assignee: Anpec Electronics CorporationInventors: Fu-Yuan Chen, Chung-An Hsieh, Yueh-Ping Yu
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Publication number: 20090278608Abstract: A power supply device for driving an amplifier includes a power generator for providing a first voltage for a first power reception end of the amplifier, a power conversion unit coupled to the power generator, for converting the first voltage into a second voltage, a charge pump coupled between the power conversion unit and a second power reception end of the amplifier, for generating a third voltage for the amplifier according to the second voltage, and a control unit coupled to the power conversion unit, for controlling the power conversion unit, so as to adjust the second voltage to make the third voltage equal to a specific multiple of the first voltage.Type: ApplicationFiled: April 18, 2008Publication date: November 12, 2009Inventors: Fu-Yuan Chen, Chung-An Hsieh, Yueh-Ping Yu
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Publication number: 20090278607Abstract: A power supply device for driving first and second amplifiers includes a first power generator, a second power generator, a charge pump and a control unit. The first power generator provides a first voltage for first power reception ends of the first and second amplifiers. The second power generator provides a second voltage. The charge pump is coupled between the second power generator and a second power reception end of the first amplifier and between the second power generator and a second power reception end of the second amplifier, and is used for generating a third voltage for the first and second amplifiers according to the second voltage. The control unit is coupled to the second power generator and is used for controlling the second power generator, so as to adjust the second voltage to make the third voltage equal to a multiple of the first voltage.Type: ApplicationFiled: April 18, 2008Publication date: November 12, 2009Inventors: Fu-Yuan Chen, Chung-An Hsieh, Yueh-Ping Yu
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Patent number: 7609114Abstract: The invention provides a voltage generating apparatus for powering at least one amplifier. The voltage generating apparatus comprises a voltage source, a switched capacitor voltage converter and a voltage detector. The voltage source supplies a first voltage to a positive voltage input terminal of the at least one amplifier. The first voltage is a positive DC voltage. The switched capacitor voltage converter is coupled to the voltage source for outputting an output voltage to a negative voltage input terminal of the at least one amplifier according to the first voltage and a predetermined voltage. The output voltage is a negative DC voltage. The voltage detector is coupled to the switched capacitor voltage converter for determining a switching frequency corresponding to the predetermined voltage according to the output voltage.Type: GrantFiled: May 27, 2008Date of Patent: October 27, 2009Assignee: UPI Semiconductor CorporationInventors: Chung-An Hsieh, Cheng-Tao Li
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Publication number: 20090058533Abstract: The invention provides a voltage generating apparatus for powering at least one amplifier. The voltage generating apparatus comprises a voltage source, a switched capacitor voltage converter and a voltage detector. The voltage source supplies a first voltage to a positive voltage input terminal of the at least one amplifier. The first voltage is a positive DC voltage. The switched capacitor voltage converter is coupled to the voltage source for outputting an output voltage to a negative voltage input terminal of the at least one amplifier according to the first voltage and a predetermined voltage. The output voltage is a negative DC voltage. The voltage detector is coupled to the switched capacitor voltage converter for determining a switching frequency corresponding to the predetermined voltage according to the output voltage.Type: ApplicationFiled: May 27, 2008Publication date: March 5, 2009Inventors: Chung-An Hsieh, Cheng-Tao Li
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Patent number: 7382195Abstract: A power supply device for driving an amplifier includes a first power generator, a second power generator, a charge pump and a control unit. The first power generator is used for providing a first voltage for a first power reception end of the amplifier. The second power generator is used for providing a second voltage. The charge pump is coupled between the second power generator and a second power reception end of the amplifier and is used for generating a third voltage for the amplifier according to the second voltage. The control unit is coupled to the second power generator and is used for controlling the second power generator, so as to adjust the second voltage to make the third voltage equal to a multiple of the first voltage.Type: GrantFiled: December 13, 2006Date of Patent: June 3, 2008Assignee: Anpec Electronics CorporationInventors: Fu-Yuan Chen, Chung-An Hsieh, Yueh-Ping Yu
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Publication number: 20080036542Abstract: A power supply device for driving an amplifier includes a first power generator, a second power generator, a charge pump and a control unit. The first power generator is used for providing a first voltage for a first power reception end of the amplifier. The second power generator is used for providing a second voltage. The charge pump is coupled between the second power generator and a second power reception end of the amplifier and is used for generating a third voltage for the amplifier according to the second voltage. The control unit is coupled to the second power generator and is used for controlling the second power generator, so as to adjust the second voltage to make the third voltage equal to a multiple of the first voltage.Type: ApplicationFiled: December 13, 2006Publication date: February 14, 2008Inventors: Fu-Yuan Chen, Chung-An Hsieh, Yueh-Ping Yu