Patents by Inventor Ying-Sung Chang

Ying-Sung Chang 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: 11944412
    Abstract: A blood pressure detection device manufactured by a semiconductor process includes a substrate, a microelectromechanical element, a gas-pressure-sensing element, a driving-chip element, an encapsulation layer and a valve layer. The substrate includes inlet apertures. The microelectromechanical element and the gas-pressure-sensing element are stacked and integrally formed on the substrate. The encapsulation layer is encapsulated and positioned on the substrate. A flowing-channel space is formed above the microelectromechanical element and the gas-pressure-sensing element. The encapsulation layer includes an outlet aperture in communication with an airbag. The driving-chip element controls the microelectromechanical element, the gas-pressure-sensing element and valve units to transport gas.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: April 2, 2024
    Assignee: MICROJET TECHNOLOGY CO., LTD.
    Inventors: Hao-Jan Mou, Ying-Lun Chang, Ching-Sung Lin, Chi-Feng Huang, Yung-Lung Han, Chang-Yen Tsai, Wei-Ming Lee, Chun-Yi Kuo, Tsung-I Lin
  • Patent number: 10862319
    Abstract: A power storage apparatus includes at least one battery module and a charging module. Each battery module includes a battery assembly, a protection unit, and a detection unit. The protection unit is connected in series to the battery assembly. The detection unit is connected in parallel to the protection unit, and the detection unit has an indication element. The charging module is connected in parallel to the at least one battery module to charge the battery assembly. When a voltage difference value of the protection unit is greater than a voltage setting value, the voltage difference value enables the indication element. Accordingly, simple circuit components installed in each battery module are used to individually protect the battery module and detect an abnormal operation of the battery module.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: December 8, 2020
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yuan-Fang Lai, Ying-Sung Chang
  • Publication number: 20190157880
    Abstract: A power storage apparatus includes at least one battery module and a charging module. Each battery module includes a battery assembly, a protection unit, and a detection unit. The protection unit is connected in series to the battery assembly. The detection unit is connected in parallel to the protection unit, and the detection unit has an indication element. The charging module is connected in parallel to the at least one battery module to charge the battery assembly. When a voltage difference value of the protection unit is greater than a voltage setting value, the voltage difference value enables the indication element. Accordingly, simple circuit components installed in each battery module are used to individually protect the battery module and detect an abnormal operation of the battery module.
    Type: Application
    Filed: June 27, 2018
    Publication date: May 23, 2019
    Inventors: Yuan-Fang LAI, Ying-Sung CHANG
  • Patent number: 9713280
    Abstract: A standalone uninterruptible power supply includes a cabinet and a power supply unit. The cabinet has a frame, rails and carrier plates removably disposed on the rails. The power supply unit installed in the frame includes a control module, a power input module, a power output module and cables. The control module is installed in one carrier plate. The power input module and the power output module are electrically connected with the control module and installed in another carrier plate. The cables are detachably connected with the control module, the input module and the power output module.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: July 18, 2017
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yuan-Fang Lai, Ying-Sung Chang
  • Publication number: 20160316586
    Abstract: A standalone uninterruptible power supply includes a cabinet and a power supply unit. The cabinet has a frame, rails and carrier plates removably disposed on the rails. The power supply unit installed in the frame includes a control module, a power input module, a power output module and cables. The control module is installed in one carrier plate. The power input module and the power output module are electrically connected with the control module and installed in another carrier plate. The cables are detachably connected with the control module, the input module and the power output module.
    Type: Application
    Filed: November 9, 2015
    Publication date: October 27, 2016
    Inventors: Yuan-Fang LAI, Ying-Sung CHANG
  • Patent number: 9088221
    Abstract: A high-voltage power supply module includes a front-end power converting circuit, a first back-end circuit, a second back-end circuit, a ground terminal and a controlling unit. The front-end power converting circuit receives an input voltage and converts the input voltage into a bus voltage. The first back-end circuit receives the bus voltage and outputs a first voltage. The second back-end circuit receives the bus voltage and outputs a second voltage. The first back-end circuit and the second back-end circuit are connected with a connecting terminal. The ground terminal is connected with the connecting terminal. In response to the first voltage and the second voltage, a first control signal and a second control signal are respectively issued from the controlling unit to the first back-end circuit and the second back-end circuit, thereby adjusting the magnitudes of the first voltage and the second voltage.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: July 21, 2015
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Yuan-Fang Lai, Ying-Sung Chang
  • Patent number: 8890374
    Abstract: An uninterruptible power supply includes plural power units, plural output capacitor units, a capacitor energy bleeder circuit, plural output units, a detecting unit and a controlling unit. The capacitor energy bleeder circuit is electrically connected to the plural output capacitor units. The plural output units are connected with each other in parallel to issue the output voltage to the power output side and avoid returning electrical energy from the power output side back to the capacitor energy bleeder circuit. The detecting unit is used for detecting operating statuses of the plural power units. The controlling unit is used for controlling operations of the plural power units and the capacitor energy bleeder circuit. In response to a to-be-interrupted status of a specified power unit, the controlling unit controls the capacitor energy bleeder circuit to discharge electrical energy of the output capacitor unit corresponding to the specified power unit.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: November 18, 2014
    Assignee: Delta Electronics, Inc.
    Inventors: Yuan-Fang Lai, Ying-Sung Chang
  • Publication number: 20130279208
    Abstract: A power converter and a method of controlling the same are disclosed. The power converter includes a transformer, a first switch unit, a second switch unit, and a control unit. The control unit turns on/off the first switch unit and the second switch unit according to magnitude of an input voltage. When the input voltage is at a high voltage range, the control unit turns on the first switch unit and turns off the second switch unit; when the input voltage is at a low voltage range, the control unit turns on the second switch unit and turns off the first switch unit.
    Type: Application
    Filed: September 12, 2012
    Publication date: October 24, 2013
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Yuan-Fang LAI, Ying-Sung CHANG
  • Publication number: 20130094265
    Abstract: An integrated inverter apparatus and a method of operating the same are disclosed. The integrated inverter apparatus includes at least two inverter units and a control unit. The inverter units are electrically connected in parallel to each other. At least one of the inverter units has a plurality of field-effect transistor (FET) switches and at least another one of the inverter units has a plurality of insulated gate bipolar transistor (IBGT) switches. The control unit is electrically connected to the inverter units to control the transistor switches of the corresponding inverter units when an optimal efficiency of the integrated inverter apparatus is reached at different operation conditions of the inverter units.
    Type: Application
    Filed: July 5, 2012
    Publication date: April 18, 2013
    Inventors: Yuan-Fang LAI, Ying-Sung CHANG
  • Publication number: 20120104857
    Abstract: A high-voltage power supply module includes a front-end power converting circuit, a first back-end circuit, a second back-end circuit, a ground terminal and a controlling unit. The front-end power converting circuit receives an input voltage and converts the input voltage into a bus voltage. The first back-end circuit receives the bus voltage and outputs a first voltage. The second back-end circuit receives the bus voltage and outputs a second voltage. The first back-end circuit and the second back-end circuit are connected with a connecting terminal. The ground terminal is connected with the connecting terminal. In response to the first voltage and the second voltage, a first control signal and a second control signal are respectively issued from the controlling unit to the first back-end circuit and the second back-end circuit, thereby adjusting the magnitudes of the first voltage and the second voltage.
    Type: Application
    Filed: October 17, 2011
    Publication date: May 3, 2012
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Yuan-Fang Lai, Ying-Sung Chang
  • Patent number: 8080981
    Abstract: An interleaved-PWM power module system and method for operating the same are disclosed. The power system includes at least two power modules, each of which has a specific ID number. The power module with an extreme value of the specific ID number is set as a master power module and the remaining power modules are set as slave power modules. The master power module sends the sync signal to all of the slave power modules. Each of the slave power modules performs a phase-locking operation with reference to a specific phase offset to generate a frequency switching signal, where the frequency switching signal is synchronized with the sum of the sync signal and the phase offset for each slave power module. The power module outputs the frequency switching signal for PWM signal generation.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: December 20, 2011
    Assignee: Delta Electronics, Inc.
    Inventors: Hsueh-Cheng Wang, Ying-Sung Chang
  • Publication number: 20110234020
    Abstract: An uninterruptible power supply includes plural power units, plural output capacitor units, a capacitor energy bleeder circuit, plural output units, a detecting unit and a controlling unit. The capacitor energy bleeder circuit is electrically connected to the plural output capacitor units. The plural output units are connected with each other in parallel to issue the output voltage to the power output side and avoid returning electrical energy from the power output side back to the capacitor energy bleeder circuit. The detecting unit is used for detecting operating statuses of the plural power units. The controlling unit is used for controlling operations of the plural power units and the capacitor energy bleeder circuit. In response to a to-be-interrupted status of a specified power unit, the controlling unit controls the capacitor energy bleeder circuit to discharge electrical energy of the output capacitor unit corresponding to the specified power unit.
    Type: Application
    Filed: March 4, 2011
    Publication date: September 29, 2011
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Yuan-Fang Lai, Ying-Sung Chang
  • Publication number: 20110110130
    Abstract: An interleaved-PWM power module system and method for operating the same are disclosed. The power system includes at least two power modules, each of which has a specific ID number. The power module with an extreme value of the specific ID number is set as a master power module and the remaining power modules are set as slave power modules. The master power module sends the sync signal to all of the slave power modules. Each of the slave power modules performs a phase-locking operation with reference to a specific phase offset to generate a frequency switching signal, where the frequency switching signal is synchronized with the sum of the sync signal and the phase offset for each slave power module. The power module outputs the frequency switching signal for PWM signal generation.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 12, 2011
    Inventors: Hsueh-Cheng WANG, Ying-Sung Chang
  • Patent number: 7649281
    Abstract: The present invention presents an uninterruptible power supply device including an input circuit coupled between a voltage input terminal and a rectifier circuit, in which the input circuit includes a boost choke being charged with an AC current received from the voltage input terminal for providing a boosted AC voltage to the rectifier circuit. The rectifier circuit is configured to convert the boosted AC voltage into an intermediate DC voltage. The intermediate DC voltage is converted through an inverter into a poly-phase output AC voltage for use by a load.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: January 19, 2010
    Assignee: Delta Electronics, Inc.
    Inventors: Yuan-Fang Lai, Ying-Sung Chang
  • Publication number: 20070241616
    Abstract: The present invention presents an uninterruptible power supply device including an input circuit coupled between a voltage input terminal and a rectifier circuit, in which the input circuit includes a boost choke being charged with an AC current received from the voltage input terminal for providing a boosted AC voltage to the rectifier circuit. The rectifier circuit is configured to convert the boosted AC voltage into an intermediate DC voltage. The intermediate DC voltage is converted through an inverter into a poly-phase output AC voltage for use by a load.
    Type: Application
    Filed: September 29, 2006
    Publication date: October 18, 2007
    Applicant: Delta Electronics, Inc.
    Inventors: Yuan-Fang Lai, Ying-Sung Chang