Patents by Inventor Chia-Hsiang Chuang

Chia-Hsiang Chuang 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).

  • Patent number: 12105176
    Abstract: The present disclosure provides a troubleshooting system for current sensors including a motor, three current sensors and a controller. The three current sensors respectively sense three phase currents of the three-phase current of the motor to obtain three current sensing values. The controller is configured to control the three-phase current of the motor. When the sum of the three current sensing values is greater than a threshold, the controller controls the three phase currents to be zero, and a first offset sensor and a current offset are obtained. When the sum of the three current sensing values equals the current offset, a second offset sensor is obtained. If the first offset sensor and the second offset sensor are the same current sensor, the controller outputs a warning signal, if the first offset sensor and the second offset sensor are different current sensors, the controller controls the motor to stop operating.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: October 1, 2024
    Assignee: Delta Electronics, Inc.
    Inventors: Kuo-Heng Chao, Chia-Hsiang Chuang
  • Publication number: 20240304705
    Abstract: A semiconductor device includes a gate structure on a substrate, a first spacer on a sidewall of the gate structure, a second spacer on a sidewall of the first spacer, a third spacer on a sidewall of the second spacer, and first and second stacks of an epitaxial layer and a cap layer respectively disposed at first and second sides of the gate structure. Preferably, a part of the second spacer comprises an I-shape, the cap layer includes a planar top surface and an inclined sidewall, the cap layer contacts the second spacer and the third spacer directly, and the cap layer includes a vertical sidewall connected to the inclined sidewall.
    Type: Application
    Filed: May 16, 2024
    Publication date: September 12, 2024
    Applicant: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Chih Chuang, Chia-Jong Liu, Kuang-Hsiu Chen, Chung-Ting Huang, Chi-Hsuan Tang, Kai-Hsiang Wang, Bing-Yang Jiang, Yu-Lin Cheng, Chun-Jen Chen, Yu-Shu Lin, Jhong-Yi Huang, Chao-Nan Chen, Guan-Ying Wu
  • Patent number: 12044766
    Abstract: The present disclosure a program burning device configured to read or write to a program burning interface. The program burning device includes a microprocessor, a programming drive circuit and an overcurrent protection circuit. The microprocessor outputs a first test signal or a second test signal. The programming drive circuit outputs a high driving voltage or a low driving voltage to the program burning interface. After the programming drive circuit outputs the low driving voltage for a preset time, the programming drive circuit outputs the high driving voltage to make the program burning interface form a high impedance. Afterwards, the overcurrent protection circuit receives the first test signal to trigger the overcurrent protection, and then receives the second test signal to trigger the undercurrent protection. If triggering the overcurrent protection and the undercurrent protection are continuously failed over a preset number of times, the microprocessor determines that current protection is failed.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: July 23, 2024
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Kuo-Heng Chao, Chia-Hsiang Chuang, Ming-Jen Chao
  • Publication number: 20240113639
    Abstract: A power conversion circuit for driving motor and a control method thereof are provided. The control method includes: comparing a control command with a carrier wave to acquire a PWM signal; identifying whether a phase difference between the output voltage and current falls within a range; if the phase difference falling within the range, determining whether a zero-sequence voltage is positive or negative according to the output voltage and current; injecting the zero-sequence voltage into the control command to acquire a synthesized command, and detecting maximum and minimum voltage values of the synthesized command after a period; according to the zero-sequence voltage determined to be positive or negative, selecting the maximum or minimum voltage value to perform a logic reversal operation; after stopping injecting the zero-sequence voltage, acquiring an output expected value; and comparing the output expected value with the carrier wave for adjusting a duty ratio of PWM signal.
    Type: Application
    Filed: May 9, 2023
    Publication date: April 4, 2024
    Inventors: Kuo-Heng Chao, Chia-Hsiang Chuang
  • Publication number: 20230123922
    Abstract: The present disclosure a program burning device configured to read or write to a program burning interface. The program burning device includes a microprocessor, a programming drive circuit and an overcurrent protection circuit. The microprocessor outputs a first test signal or a second test signal. The programming drive circuit outputs a high driving voltage or a low driving voltage to the program burning interface. After the programming drive circuit outputs the low driving voltage for a preset time, the programming drive circuit outputs the high driving voltage to make the program burning interface form a high impedance. Afterwards, the overcurrent protection circuit receives the first test signal to trigger the overcurrent protection, and then receives the second test signal to trigger the undercurrent protection. If triggering the overcurrent protection and the undercurrent protection are continuously failed over a preset number of times, the microprocessor determines that current protection is failed.
    Type: Application
    Filed: June 14, 2022
    Publication date: April 20, 2023
    Inventors: Kuo-Heng Chao, Chia-Hsiang Chuang, Ming-Jen Chao
  • Publication number: 20230121422
    Abstract: The present disclosure provides a troubleshooting system for current sensors including a motor, three current sensors and a controller. The three current sensors respectively sense three phase currents of the three-phase current of the motor to obtain three current sensing values. The controller is configured to control the three-phase current of the motor. When the sum of the three current sensing values is greater than a threshold, the controller controls the three phase currents to be zero, and a first offset sensor and a current offset are obtained. When the sum of the three current sensing values equals the current offset, a second offset sensor is obtained. If the first offset sensor and the second offset sensor are the same current sensor, the controller outputs a warning signal, if the first offset sensor and the second offset sensor are different current sensors, the controller controls the motor to stop operating.
    Type: Application
    Filed: June 10, 2022
    Publication date: April 20, 2023
    Inventors: Kuo-Heng Chao, Chia-Hsiang Chuang
  • Publication number: 20140111435
    Abstract: A cursor control device has a touch control module for users to perform a swipe gesture. The touch control module generates a control command according to the swipe gesture and transmits the control command to a host computer. The host computer then launches a swipe menu on an edge of a display screen thereof Accordingly, after a host computer with the Win8™ installed therein as the operating system receives the control command, the edge swipe function supported by the Win8™ can be launched.
    Type: Application
    Filed: February 4, 2013
    Publication date: April 24, 2014
    Applicant: ELAN MICROELECTRONICS CORPORATION
    Inventors: Chia-Hsiang CHUANG, Pei-Kang CHUNG, Ta-Huang LIU, Chin-Nan WU
  • Publication number: 20100172131
    Abstract: A light-emitting diode (LED) street lamp is applicable for street lighting. The LED street lamp includes a casing, an LED module, and a heat dissipation module. The LED module and the heat dissipation module are arranged inside the casing. The LED module includes a frame, a circuit board carrying a plurality of LEDs, and a light regulation mechanism. The frame and the circuit board are set opposing each other with the light regulation mechanism arranged therebetween to interfere with emission light from the LEDs. The emission light, after being interfered with, is projected outside the casing to realize lighting. The heat dissipation module is in physical engagement with the LED module to remove heat generated by the LEDs. As such, the LED street lamp is provided with a broader range of illumination angle and more uniform brightness, so that the same LED street lamp is applicable to various sites and the heat generated by the LEDs can be efficiently dissipated.
    Type: Application
    Filed: January 2, 2009
    Publication date: July 8, 2010
    Inventors: Yun-Chiang Mo, Chia-Hua Liao, Yi-Chun Chen, Yen-Yu Huang, Chia-Hsiang Chuang