Patents by Inventor Lieh-Chung YIN
Lieh-Chung YIN 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: 11863077Abstract: A power supply system includes an input stage comprising first and second input switches to provide a primary current responsive first and second input switching signals. A transformer generates a secondary current responsive to the primary current. An output stage comprises an output, a first output switch, a second output switch and a clamping switch. The output stage can be configured to generate an output voltage at the output by rectifying the secondary current responsive to respective first and second output switching signals. The clamping switch can be configured to close responsive to a clamp switching signal during an activation dead-time between closing the first input switch and the second input switch. The system further includes a switching controller configured to generate the first and second input switching signals and the first and second output switching signals based on the output voltage, and to generate the clamp switching signal.Type: GrantFiled: November 30, 2021Date of Patent: January 2, 2024Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Sheng-Yang Yu, Lieh-Chung Yin
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Publication number: 20230170812Abstract: A power supply system includes an input stage comprising first and second input switches to provide a primary current responsive first and second input switching signals. A transformer generates a secondary current responsive to the primary current. An output stage comprises an output, a first output switch, a second output switch and a clamping switch. The output stage can be configured to generate an output voltage at the output by rectifying the secondary current responsive to respective first and second output switching signals. The clamping switch can be configured to close responsive to a clamp switching signal during an activation dead-time between closing the first input switch and the second input switch. The system further includes a switching controller configured to generate the first and second input switching signals and the first and second output switching signals based on the output voltage, and to generate the clamp switching signal.Type: ApplicationFiled: November 30, 2021Publication date: June 1, 2023Inventors: Sheng-Yang YU, Lieh-Chung YIN
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Patent number: 10951123Abstract: A power conversion system is provided. The system includes a switch module, a resonant module, a magnetic conversion module, a bobbin and an iron core. The magnetic conversion module includes a primary winding and a PCB winding module. The PCB winding module includes a printed circuit board, a conductive layer disposed on at least one surface of the printed circuit board, and a switch unit disposed on the printed circuit board.Type: GrantFiled: September 18, 2017Date of Patent: March 16, 2021Assignee: CHICONY POWER TECHNOLOGY CO.. LTD.Inventors: Yung-Hung Hsiao, Chia-Hsien Yen, Lieh-Chung Yin, Cheng-Chang Hsiao, Hao-Te Hsu
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Patent number: 10770981Abstract: The present disclosure is related to a voltage conversion module which includes a front side magneto-sensitive unit, at least one voltage conversion unit, a core group, and a bobbin. The bobbin includes a first accommodating part, a second accommodating part, and a through hole. The first accommodating part is used for accommodating the front side magneto-sensitive unit. The second accommodating part is used for accommodating the at least one voltage conversion unit. The through hole is used for accommodating the core group. The second accommodating part includes first and second openings. The first opening is disposed at one side of the second accommodating part. The second opening is disposed at another side of the second accommodating part. The first and second openings are disposed opposite to each other, and a heat dissipation channel is formed between the first opening, the second opening and the at least one voltage conversion unit.Type: GrantFiled: October 25, 2017Date of Patent: September 8, 2020Assignee: CHICONY POWER TECHNOLOGY CO., LTD.Inventors: Yung-Hung Hsiao, Chia-Hsien Yen, Lieh-Chung Yin, Cheng-Chang Hsiao, Hao-Te Hsu
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Publication number: 20180076726Abstract: The present disclosure is related to a voltage conversion module which includes a front side magneto-sensitive unit, at least one voltage conversion unit, a core group, and a bobbin. The bobbin includes a first accommodating part, a second accommodating part, and a through hole. The first accommodating part is used for accommodating the front side magneto-sensitive unit. The second accommodating part is used for accommodating the at least one voltage conversion unit. The through hole is used for accommodating the core group. The second accommodating part includes first and second openings. The first opening is disposed at one side of the second accommodating part. The second opening is disposed at another side of the second accommodating part. The first and second openings are disposed opposite to each other, and a heat dissipation channel is formed between the first opening, the second opening and the at least one voltage conversion unit.Type: ApplicationFiled: October 25, 2017Publication date: March 15, 2018Inventors: Yung-Hung HSIAO, Chia-Hsien YEN, Lieh-Chung YIN, Cheng-Chang HSIAO, Hao-Te HSU
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Publication number: 20180069485Abstract: A power conversion system is provided. The system includes a switch module, a resonant module, a magnetic conversion module, a bobbin and an iron core. The magnetic conversion module includes a primary winding and a PCB winding module. The PCB winding module includes a printed circuit board, a conductive layer disposed on at least one surface of the printed circuit board, and a switch unit disposed on the printed circuit board.Type: ApplicationFiled: September 18, 2017Publication date: March 8, 2018Inventors: Yung-Hung HSIAO, Chia-Hsien YEN, Lieh-Chung YIN, Cheng-Chang HSIAO, Hao-Te HSU
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Publication number: 20150270702Abstract: A power supplying device includes a power supplying unit, a first switching element, a compensating unit, a controller, and an over-voltage protecting unit. The power supplying unit includes a main power-outputting terminal, a standby power-outputting terminal, a DC to DC power converter, and a first sensing resistor. The DC to DC power convertor includes a power-outputting terminal The first sensing resistor is electrically connected to the power-outputting terminal and the main power-outputting terminal The first switching element is electrically connected to the first sensing resistor and the main power-outputting terminal The compensating unit is electrically connected to the main power-outputting terminal The controller is electrically connected to the compensating unit and the power supplying unit.Type: ApplicationFiled: July 30, 2014Publication date: September 24, 2015Inventors: Lieh-Chung YIN, Chia-Hsien YEN, Tzu-Hung WANG
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Patent number: 8823336Abstract: A bridgeless power factor corrector with a single choke is electrically connected to an AC power source. The bridgeless power factor corrector includes a choke element, a first switch, a second switch, a first diode, a second diode, a capacitor, a first rectify diode, and a second rectify diode. The choke element is electrically connected between the first switch and the second switch. The first switch and the second switch are controlled to be turned on or turned off by a first control signal and a second control signal, respectively, to provide a power factor correction for the AC power source when the AC power source is in a positive half cycle or a negative half cycle. Furthermore, a method of operating the bridgeless power factor corrector is provided.Type: GrantFiled: November 6, 2012Date of Patent: September 2, 2014Assignee: Chicony Power Technology Co., LtdInventors: Lieh-Chung Yin, Chia-Hsien Yen
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Publication number: 20140125297Abstract: A bridgeless power factor corrector with a single choke is electrically connected to an AC power source. The bridgeless power factor corrector includes a choke element, a first switch, a second switch, a first diode, a second diode, a capacitor, a first rectify diode, and a second rectify diode. The choke element is electrically connected between the first switch and the second switch. The first switch and the second switch are controlled to be turned on or turned off by a first control signal and a second control signal, respectively, to provide a power factor correction for the AC power source when the AC power source is in a positive half cycle or a negative half cycle. Furthermore, a method of operating the bridgeless power factor corrector is provided.Type: ApplicationFiled: November 6, 2012Publication date: May 8, 2014Applicant: CHICONY POWER TECHNOLOGY CO., LTD.Inventors: Lieh-Chung YIN, Chia-Hsien YEN