Patents by Inventor Yuh-Fwu Chou
Yuh-Fwu Chou 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: 11811114Abstract: The power supply device is configured on an aircraft and includes a secondary battery, a transformer, a fuel cell and a bypass switch. The transformer is electrically connected between the secondary battery and the aircraft. The fuel cell is suitable for providing a first output current to the aircraft. The bypass switch is connected in parallel with the transformer. The transformer has a first output voltage set value. When a first output terminal voltage of the fuel cell is lower than the first output voltage set value and the bypass switch is in a non-conducting state, a second output current of the secondary battery is provided to the aircraft via the transformer. When the first output terminal voltage is lower than the first output voltage set value and the bypass switch is in a conducting state, the second output current is provided to the aircraft via the bypass switch.Type: GrantFiled: December 30, 2020Date of Patent: November 7, 2023Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yin-Wen Tsai, Chih-Wei Hsu, Yuh-Fwu Chou, Chin-Yi Shih, Chien-Chi Chiu
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Publication number: 20230216307Abstract: A power supply includes fuel cell, secondary battery, power converter, current detecting unit and control unit. The power converter couples the fuel cell with the secondary battery, and is adapted to convert current outputted by the fuel cell into output current. The current detecting unit couples the power converter with the secondary battery and adapted to detect charging current of the output current transferred to the secondary battery. The control unit couples the current detecting unit with the power converter and is adapted to: when the charging current is greater than a charging current upper-limit-setting value of the secondary battery, a down-adjustment signal is outputted to the power converter to reduce the output current; and when the charging current is less than the charging current upper-limit-setting value, an up-adjustment signal is outputted to the power converter to increase the output current.Type: ApplicationFiled: November 30, 2022Publication date: July 6, 2023Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chien-Chi CHIU, Yuh-Fwu CHOU, Yin-Wen TSAI, Chih-Wei HSU, Ku-Yen KANG
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Patent number: 11552315Abstract: A control system and a control method of fuel cell stacks are provided. The control system includes a set of fuel cell stacks, a secondary battery, a monitoring device, and a control device. Each fuel cell stack has a power output that can be independently started up or shut down. The secondary battery is connected to power output terminals of the fuel cell stacks via a power transmission path. The monitoring device is configured to monitor an electrical parameter of the power transmission path. The control device receives an electrical parameter signal from the monitoring device, and outputs a control signal to shut down or start up the power output of at least one of the fuel cell stacks if the electrical parameter's value is higher than a predetermined upper limit or lower than a predetermined lower limit.Type: GrantFiled: April 14, 2021Date of Patent: January 10, 2023Assignee: Industrial Technology Research InstituteInventors: Yin-Wen Tsai, Chih-Wei Hsu, Ku-Yen Kang, Yuh-Fwu Chou, Chin-Yi Shih
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Patent number: 11444301Abstract: A power supply device disposed on an aircraft to provide a power to the aircraft is provided. The aircraft has an average required power value. The power supply device includes a secondary battery, a transformer and a fuel cell. The transformer is coupled between the secondary battery and the aircraft. The fuel cell is coupled to the aircraft and is adapted to provide a first output current to the aircraft. The transformer has an output voltage set value. When the first output end voltage of the fuel cell is lower than the output voltage set value, the transformer provides a second output current of the secondary battery to the aircraft. The output voltage set value is in a voltage range with a fuel cell output power between the maximum power value of characteristic curve of the fuel cell and the average required power value of the aircraft.Type: GrantFiled: September 6, 2019Date of Patent: September 13, 2022Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yuh-Fwu Chou, Ho-Cheng Lin
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Publication number: 20220209262Abstract: A control system and a control method of fuel cell stacks are provided. The control system includes a set of fuel cell stacks, a secondary battery, a monitoring device, and a control device. Each fuel cell stack has a power output that can be independently started up or shut down. The secondary battery is connected to power output terminals of the fuel cell stacks via a power transmission path. The monitoring device is configured to monitor an electrical parameter of the power transmission path. The control device receives an electrical parameter signal from the monitoring device, and outputs a control signal to shut down or start up the power output of at least one of the fuel cell stacks if the electrical parameter's value is higher than a predetermined upper limit or lower than a predetermined lower limit.Type: ApplicationFiled: April 14, 2021Publication date: June 30, 2022Applicant: Industrial Technology Research InstituteInventors: Yin-Wen Tsai, Chih-Wei Hsu, Ku-Yen Kang, Yuh-Fwu Chou, Chin-Yi Shih
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Publication number: 20220209267Abstract: The power supply device is configured on an aircraft and includes a secondary battery, a transformer, a fuel cell and a bypass switch. The transformer is electrically connected between the secondary battery and the aircraft. The fuel cell is suitable for providing a first output current to the aircraft. The bypass switch is connected in parallel with the transformer. The transformer has a first output voltage set value. When a first output terminal voltage of the fuel cell is lower than the first output voltage set value and the bypass switch is in a non-conducting state, a second output current of the secondary battery is provided to the aircraft via the transformer. When the first output terminal voltage is lower than the first output voltage set value and the bypass switch is in a conducting state, the second output current is provided to the aircraft via the bypass switch.Type: ApplicationFiled: December 30, 2020Publication date: June 30, 2022Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yin-Wen TSAI, Chih-Wei HSU, Yuh-Fwu CHOU, Chin-Yi SHIH, Chien-Chi CHIU
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Publication number: 20200083550Abstract: A power supply device disposed on an aircraft to provide a power to the aircraft is provided. The aircraft has an average required power value. The power supply device includes a secondary battery, a transformer and a fuel cell. The transformer is coupled between the secondary battery and the aircraft. The fuel cell is coupled to the aircraft and is adapted to provide a first output current to the aircraft. The transformer has an output voltage set value. When the first output end voltage of the fuel cell is lower than the output voltage set value, the transformer provides a second output current of the secondary battery to the aircraft. The output voltage set value is in a voltage range with a fuel cell output power between the maximum power value of characteristic curve of the fuel cell and the average required power value of the aircraft.Type: ApplicationFiled: September 6, 2019Publication date: March 12, 2020Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Yuh-Fwu CHOU, Ho-Cheng LIN
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Patent number: 8253380Abstract: A characteristic tracking method for a battery module including at least one battery is disclosed. A look-up table is provided according to a primary characteristic of the battery. It is determined whether a battery has satisfied a preset condition when the battery module is operated from a usage state to an idling state. The battery is measured to have obtained a first voltage and a real capacity when the battery satisfies the preset condition. The measured first voltage is utilized to locate a table capacity of the battery from the look-up table. The look-up table is updated according to the real capacity and the table capacity. A peripheral circuit of characteristic tracking method has been exhibited.Type: GrantFiled: July 2, 2009Date of Patent: August 28, 2012Assignee: Industrial Technology Research InstituteInventors: Chein-Chung Sun, Yuh-Fwu Chou, Ming-Wang Cheng, Sheng-Yong Shen
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Patent number: 8183838Abstract: A charging method for a rechargeable battery is disclosed. A preset power is provided to the rechargeable battery when the rechargeable battery is connected to a charger for execution of a first charge process. A use state of the rechargeable battery is obtained. A first adjustable charge power is provided to the rechargeable battery when the rechargeable battery is reconnected to the charger for execution of a second charge process.Type: GrantFiled: September 23, 2008Date of Patent: May 22, 2012Assignee: Industrial Technology Research InstituteInventors: Chein-Chung Sun, Yuh-Fwu Chou
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Patent number: 7821225Abstract: The invention provides a power management method for a hybrid power supply, comprising providing a primary power source, providing a rechargeable battery, providing a DC-DC converter, acquiring an amount of the power stored in the rechargeable battery, and when the energy level of the rechargeable battery does not exceed a first predetermined value, the DC-DC converter controls the primary power source to output a first value of a first electrical parameter.Type: GrantFiled: February 27, 2006Date of Patent: October 26, 2010Assignee: Industrial Technology Research InstituteInventors: Yuh-Fwu Chou, Chiou-Chu Lai, Sheng-Yong Shen
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Patent number: 7711118Abstract: The security system for a protected object comprises a first wireless module, a central controller, and a remote authorization server. The first wireless module and the central controller are disposed in the protected object. The first wireless module transmits an authorization request with an authorization ID (identification) of the protected object, and receives an authorization response. The central controller is coupled to the first wireless module, and allows the protected object to operate in accordance with the authorization response. The remote authorization server, responsive to the authorization request, generates the authorization response from an authorization record thereof in accordance with the authorization ID, and transmits the authorization response.Type: GrantFiled: December 28, 2005Date of Patent: May 4, 2010Assignee: Industrial Technology Research InstituteInventors: Yuh-Fwu Chou, Hsin-Hsien Yeh, Mo-Hua Yang, Horng-Yuan Wen, Jing-Pin Pan, Ying-Chang Hung
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Publication number: 20100072948Abstract: A characteristic tracking method for a battery module including at least one battery is disclosed. A look-up table is provided according to a primary characteristic of the battery. It is determined whether a battery has satisfied a preset condition when the battery module is operated from a usage state to an idling state. The battery is measured to have obtained a first voltage and a real capacity when the battery satisfies the preset condition. The measured first voltage is utilized to locate a table capacity of the battery from the look-up table. The look-up table is updated according to the real capacity and the table capacity. A peripheral circuit of characteristic tracking method has been exhibited.Type: ApplicationFiled: July 2, 2009Publication date: March 25, 2010Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chein-Chung SUN, Yuh-Fwu Chou, Ming-Wang Cheng, Sheng-Yong Shen
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Patent number: 7633269Abstract: A charging method for charging a battery module. The battery module receives a different charge voltage according to the voltage or current status of the battery module. The charge voltage is decreased to increase battery power when any battery voltage level is greater than a preset voltage. A charging system thereof is also disclosed.Type: GrantFiled: December 21, 2004Date of Patent: December 15, 2009Assignee: Industrial Technology Research InstituteInventors: Yuh-Fwu Chou, Bing-Ming Lin, Po-Yin Tseng, Kuo-Kuang Peng
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Publication number: 20090160406Abstract: A charging method for a rechargeable battery is disclosed. A preset power is provided to the rechargeable battery when the rechargeable battery is connected to a charger for execution of a first charge process. A use state of the rechargeable battery is obtained. A first adjustable charge power is provided to the rechargeable battery when the rechargeable battery is reconnected to the charger for execution of a second charge process.Type: ApplicationFiled: September 23, 2008Publication date: June 25, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chein-Chung Sun, Yuh-Fwu Chou
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Patent number: 7535256Abstract: A cross-level digital signal transmission device between two systems for cross-level digital signal transmission. Bi-directional symmetrical transmission is achieved without using additional control signals, and use of the transmission signal itself eliminates the positive feedback loop. Thus, neither additional control signals nor resulting unsymmetrical circuits need be provided.Type: GrantFiled: September 3, 2003Date of Patent: May 19, 2009Assignee: Industrial Technology Research InstituteInventors: Yuh-Fwu Chou, Tshaw-Chuang Chen, Po-Yin Tseng, Kuo-Kuang Peng, Mei-Fang Huang, Ho-Yin Pun
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Publication number: 20080157778Abstract: An estimation method for estimating a remaining capacity of a battery utilized by an electronic system is disclosed. The voltage of the battery is detected or is determined by a first reference value. When the duration of a specific state arrives at a preset time, a specific action is executed.Type: ApplicationFiled: December 19, 2007Publication date: July 3, 2008Inventors: Yuh-Fwu Chou, Po-Yin Tseng, Ming-Wang Cheng
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Publication number: 20070147615Abstract: A security system. The security system for a protected object comprises a first wireless module, a central controller, and a remote authorization server. The first wireless module and the central controller are disposed in the protected object. The first wireless module transmits an authorization request with an authorization ID (identification) of the protected object, and receives an authorization response. The central controller is coupled to the first wireless module, and allows the protected object to operate in accordance with the authorization response. The remote authorization server, responsive to the authorization request, generates the authorization response from an authorization record thereof in accordance with the authorization ID, and transmits the authorization response.Type: ApplicationFiled: December 28, 2005Publication date: June 28, 2007Inventors: Yuh-Fwu Chou, Hsin-Hsien Yeh, Mo-Hua Yang, Horng-Yuan Wen, Jing-Pin Pan, Ying-Chang Hung
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Publication number: 20060197382Abstract: The invention provides a power management method for a hybrid power supply, comprising providing a primary power source, providing a rechargeable battery, providing a DC-DC converter, acquiring an amount of the power stored in the rechargeable battery, and when the energy level of the rechargeable battery does not exceed a first predetermined value, the DC-DC converter controls the primary power source to output a first value of a first electrical parameter.Type: ApplicationFiled: February 27, 2006Publication date: September 7, 2006Inventors: Yuh-Fwu Chou, Chiou-Chu Lai, Sheng-Yong Shen
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Publication number: 20050140333Abstract: A charging method for charging a battery module. The battery module receives a different charge voltage according to the voltage or current status of the battery module. The charge voltage is decreased to increase battery power when any battery voltage level is greater than a preset voltage. A charging system thereof is also disclosed.Type: ApplicationFiled: December 21, 2004Publication date: June 30, 2005Inventors: Yuh-Fwu Chou, Bing-Ming Lin, Po-Yin Tseng, Kuo-Kuang Peng
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Publication number: 20050112420Abstract: A power supply device comprises a secondary cell group and a fuel cell group. The secondary cell group has an operative voltage range and may receive a voltage converted from a voltage converter that coupled to the fuel cell group. The fuel cell group is characterized with a maximum output power and a corresponding voltage. The corresponding voltage is not higher than the upper limit of the operative voltage range.Type: ApplicationFiled: November 18, 2004Publication date: May 26, 2005Inventors: Chiou-Chu Lai, Yuh-Fwu Chou, Sheng-Yong Shen