Patents by Inventor Jia-Min Shen

Jia-Min Shen 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: 10848099
    Abstract: A power generation abnormality detection method includes operating a power converter to controllably operate a solar cell module at a plurality of predetermined voltage points to obtain a plurality of measured currents, utilizing the predetermined voltage points and measured currents to calculate a plurality of first power data, comparing the plurality of first power data with a first PV curve, or operating the power converter to controllably operate the solar cell module at a plurality of predetermined current points to obtain a plurality of measured voltages, utilizing the predetermined current points and measured voltages to calculate a plurality of second power data, and comparing the plurality of second power data with a second PV curve.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: November 24, 2020
    Assignee: ABLEREX ELECTRONICS CO., LTD.
    Inventors: Yao-Jen Chang, Chia-Hung Lee, Jia-Min Shen, Yu-Hsiu Lin
  • Publication number: 20170294877
    Abstract: A power generation abnormality detection method includes: operating a power converter to controllably operate a solar cell module at a plurality of predetermined voltage points to obtain a plurality of measured currents; utilizing the predetermined voltage points and measured currents to calculate a plurality of first power data; comparing the plurality of first power data with a first PV curve; or operating the power converter to controllably operate the solar cell module at a plurality of predetermined current points to obtain a plurality of measured voltages; utilizing the predetermined current points and measured voltages to calculate a plurality of second power data; comparing the plurality of second power data with a second PV curve.
    Type: Application
    Filed: December 28, 2016
    Publication date: October 12, 2017
    Inventors: Yao-Jen Chang, Chia-Hung Lee, Jia-Min Shen, Yu-Hsiu Lin
  • Patent number: 9490801
    Abstract: A rapid cutoff device includes a thyristor AC switch for supplying an AC current from a first AC circuit to a second AC circuit. A serially-connected circuit of a first switch and a first capacitor parallel-connects with the first AC circuit. A serially-connected circuit of a second switch and a second capacitor parallel-connects with the second AC circuit. When cutting off the thyristor AC switch, the first switch is operated to conduct the first capacitor in a first direction for the AC current charging to the first capacitor, alternatively, the second switch is operated to conduct the second capacitor in a second direction for the AC current charging to the second capacitor, thereby lowering a current in the thyristor AC switch approaching a zero value and thus rapidly cutting off it.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: November 8, 2016
    Assignee: Ablerex Electronics Co., Ltd.
    Inventors: Jia-Min Shen, Yi-Hao Chang, Chia-Hung Lee
  • Patent number: 9461581
    Abstract: A shadowing compensation device for a solar cell module has an input port, an isolated DC-DC power converter, and an output port. The input port is connected to two output ends of a solar cell array including multiple solar cell modules connected in series. The output port is connected to one of the multiple solar cell modules of the solar cell array. When one of the solar cell modules connected to the output port of shadowing compensation device has been shaded, the isolated DC-DC power converter outputs a compensating current to the solar cell module that has been shaded for increasing the output voltage of the solar cell module that has been shaded, and increasing the output voltage and output power of the solar cell array.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: October 4, 2016
    Assignee: Ablerex Electronics Co., Ltd.
    Inventors: Ya-Tsung Feng, Jia-Min Shen, Wen-Jie Hou
  • Patent number: 9344082
    Abstract: A rapid cutoff device includes a thyristor DC switch, a switch and a capacitor. An operation method includes: connecting the thyristor DC switch between a first DC circuit and a second DC circuit; serially connecting the switch and the capacitor which further parallel connects the first DC circuit; when the thyristor DC switch is conducted, supplying a DC current via the thyristor DC switch; when a drive signal of the thyristor DC switch stops, operating the switch to conduct the capacitor which is charged by the first DC circuit to rapidly lower a current of the thyristor DC switch approaching a zero value, thereby rapidly cutting of the thyristor DC switch.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: May 17, 2016
    Assignee: Ablerex Electronics Co., Ltd.
    Inventors: Jia-Min Shen, Yi-Hao Chang, Chia-Hung Lee
  • Publication number: 20160065209
    Abstract: A rapid cutoff device includes a thyristor AC switch for supplying an AC current from a first AC circuit to a second AC circuit. A serially-connected circuit of a first switch and a first capacitor parallel-connects with the first AC circuit. A serially-connected circuit of a second switch and a second capacitor parallel-connects with the second AC circuit. When cutting off the thyristor AC switch, the first switch is operated to conduct the first capacitor in a first direction for the AC current charging to the first capacitor, alternatively, the second switch is operated to conduct the second capacitor in a second direction for the AC current charging to the second capacitor, thereby lowering a current in the thyristor AC switch approaching a zero value and thus rapidly cutting off it.
    Type: Application
    Filed: December 31, 2014
    Publication date: March 3, 2016
    Inventors: Jia-Min Shen, Yi-Hao Chang, Chia-Hung Lee
  • Publication number: 20160056820
    Abstract: A rapid cutoff device includes a thyristor DC switch, a switch and a capacitor. An operation method includes: connecting the thyristor DC switch between a first DC circuit and a second DC circuit; serially connecting the switch and the capacitor which further parallel connects the first DC circuit; when the thyristor DC switch is conducted, supplying a DC current via the thyristor DC switch; when a drive signal of the thyristor DC switch stops, operating the switch to conduct the capacitor which is charged by the first DC circuit to rapidly lower a current of the thyristor DC switch approaching a zero value, thereby rapidly cutting of the thyristor DC switch.
    Type: Application
    Filed: December 31, 2014
    Publication date: February 25, 2016
    Inventors: Jia-Min Shen, Yi-Hao Chang, Chia-Hung Lee
  • Publication number: 20150122312
    Abstract: A shadowing compensation device for solar cell module has an input port, an isolated DC-DC power converter, and an output port. The input port is connected to two output ends of a solar cell array comprised of multiple solar cell modules connected in series. The output port is connected to one of the multiple solar cell modules of the solar cell array. When one of the solar cell modules connected to the output port of shadowing compensation device has been shaded, the isolated DC-DC power converter outputs a compensating current to the solar cell module been shaded for increasing the output voltage of the solar cell module been shaded, and increasing the output voltage and output power of the solar cell array.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 7, 2015
    Applicant: ABLEREX ELECTRONICS CO., LTD.
    Inventors: Ya-Tsung Feng, Jia-Min Shen, Wen-Jie Hou
  • Patent number: 8009446
    Abstract: A ripple voltage suppression apparatus includes a DC/DC converter and a control circuit. The DC/DC converter has a power electronic switch. The control circuit has a voltage detector detecting a DC output voltage of the DC/DC converter, a ripple voltage suppression circuit receiving the detected DC output voltage to generate an AC control signal for controlling an AC component of a duty ratio of the power electronic switch, an output voltage regulation circuit receiving the detected DC output voltage to generate a DC control signal for controlling an DC component of a duty ratio, an adder adding the AC and DC control signals to form a combined control signal, and a PWM circuit converting the combined control signal into a PWM signal to control the power electronic switch. Only the DC output voltage of the DC/DC converter has to be detected for the control circuit.
    Type: Grant
    Filed: February 16, 2009
    Date of Patent: August 30, 2011
    Assignee: Ablerex Electronics Co., Ltd.
    Inventors: Hung-Liang Chou, Jia-Min Shen, Chin-Chang Wu, Li-Hsiang Lai, Lung-Chi Yang, Ya-Tsung Feng
  • Publication number: 20100085784
    Abstract: A ripple voltage suppression apparatus includes a DC/DC converter and a control circuit. The DC/DC converter has a power electronic switch. The control circuit has a voltage detector detecting a DC output voltage of the DC/DC converter, a ripple voltage suppression circuit receiving the detected DC output voltage to generate an AC control signal for controlling an AC component of a duty ratio of the power electronic switch, an output voltage regulation circuit receiving the detected DC output voltage to generate a DC control signal for controlling an DC component of a duty ratio, an adder adding the AC and DC control signals to form a combined control signal, and a PWM circuit converting the combined control signal into a PWM signal to control the power electronic switch. Only the DC output voltage of the DC/DC converter has to be detected for the control circuit.
    Type: Application
    Filed: February 16, 2009
    Publication date: April 8, 2010
    Inventors: Hung-Liang CHOU, Jia-Min Shen, Chin-Chang Wu, Li-Hsiang Lai, Lung-Chi Yang, Ya-Tsung Feng