Patents by Inventor Yao-Wen Tsai
Yao-Wen Tsai 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: 11942993Abstract: An optical transmission device includes: a control module generate a control signal output which includes a slope adjust signal and a bias voltage offset adjust signal according to an input signal indicating a dispersion amount an electrical level adjust signal; a multi-level pulse amplitude modulator; and an asymmetrical optical modulator which is controlled by the slope adjust signal to be operated at one of a positive slope and a negative slope of a transfer function of the asymmetrical optical modulator itself, and is controlled by the bias voltage offset adjust signal of the control signal output to offset a bias voltage point of the asymmetrical optical modulator itself from a quadrature point of the transfer function, and modulates the multi-level pulse amplitude modulation signal to an optical signal to generate an optical modulate signal having a chirp.Type: GrantFiled: December 18, 2020Date of Patent: March 26, 2024Assignee: Molex, LLCInventors: Kuen-Ting Tsai, Wei-Hung Chen, Zuon-Min Chuang, Yao-Wen Liang
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Patent number: 9906139Abstract: A power supply module coupled with a primary winding of a power conversion module, the power supply module includes a plurality of power-controlling modules, a plurality of second switches, and a microprocessor. Each power-controlling module includes an auxiliary winding and a first switch electrically connected in series, and each auxiliary winding is magnetic coupled with the primary winding. Each second switch is electrically connected to one of the power-controlling units. The microprocessor is electrically connected to the first switches of the power-controlling modules and the second switches. The microprocessor places at least one first switch and one of the second switches in a conducting state to make the first switch in the conducting state and the second switch in the conducting state electrically connect in series and output an electric power to power the power conversion module.Type: GrantFiled: March 4, 2016Date of Patent: February 27, 2018Assignee: CHICONY POWER TECHNOLOGY CO., LTD.Inventors: Wen-Nan Huang, Ching-Guo Chen, Yao-Wen Tsai, Ti-Te Chen, Huan-Chih Chiu
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Publication number: 20170257034Abstract: A power supply module coupled with a primary winding of a power conversion module, the power supply module includes a plurality of power-controlling modules, a plurality of second switches, and a microprocessor. Each power-controlling module includes an auxiliary winding and a first switch electrically connected in series, and each auxiliary winding is magnetic coupled with the primary winding. Each second switch is electrically connected to one of the power-controlling units. The microprocessor is electrically connected to the first switches of the power-controlling modules and the second switches. The microprocessor places at least one first switch and one of the second switches in a conducting state to make the first switch in the conducting state and the second switch in the conducting state electrically connect in series and output an electric power to power the power conversion module.Type: ApplicationFiled: March 4, 2016Publication date: September 7, 2017Inventors: Wen-Nan HUANG, Ching-Guo CHEN, Yao-Wen TSAI, Ti-Te CHEN, Huan-Chih CHIU
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Patent number: 9692292Abstract: A power supply apparatus includes a main power processing circuit and an alternating current power detection circuit. The alternating current power detection circuit is electrically connected to the main power processing circuit. The alternating current power detection circuit includes a rectifying unit and a frequency processing unit. The rectifying unit is electrically connected to the main power processing circuit. The frequency processing unit is electrically connected to the main power processing circuit and the rectifying unit. The rectifying unit rectifies an alternating current power to obtain a rectified power. When a frequency of the rectified power is greater than a predetermined frequency, the frequency processing unit informs the main power processing circuit, so that the main power processing circuit processes the alternating current power to obtain an output direct current power.Type: GrantFiled: March 10, 2015Date of Patent: June 27, 2017Assignee: Chicony Power Technology Co., Ltd.Inventors: Wen-Nan Huang, Shiu-Hui Lee, Yao-Wen Tsai, Ching-Guo Chen
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Publication number: 20160126825Abstract: A power supply apparatus includes a main power processing circuit and an alternating current power detection circuit. The alternating current power detection circuit is electrically connected to the main power processing circuit. The alternating current power detection circuit includes a rectifying unit and a frequency processing unit. The rectifying unit is electrically connected to the main power processing circuit. The frequency processing unit is electrically connected to the main power processing circuit and the rectifying unit. The rectifying unit rectifies an alternating current power to obtain a rectified power. When a frequency of the rectified power is greater than a predetermined frequency, the frequency processing unit informs the main power processing circuit, so that the main power processing circuit processes the alternating current power to obtain an output direct current power.Type: ApplicationFiled: March 10, 2015Publication date: May 5, 2016Inventors: Wen-Nan HUANG, Shiu-Hui LEE, Yao-Wen TSAI, Ching-Guo CHEN
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Publication number: 20160111201Abstract: A transformer includes a bobbin, a primary winding set, a plurality of secondary winding sets, and a magnetic core. The bobbin includes a winding part. The primary winding set is wound on the winding part. The secondary winding sets twist together and are wound on the winding part for uniform leakage inductance in secondary winding sets of the transformer. The magnetic core is assembled with the bobbin. The magnetic core, the primary winding set, and the twisted secondary winding sets collectively achieve function of power conversion.Type: ApplicationFiled: October 16, 2014Publication date: April 21, 2016Inventors: Wen-Nan HUANG, Ching-Guo CHEN, Shiu-Hui LEE, Yao-Wen TSAI, HSIAO-CHIH KU
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Patent number: 9312754Abstract: A voltage generating unit generates a standard output voltage and sends to a voltage output side. A voltage detection unit detects a voltage of the voltage output side and informs a voltage gain control unit. When the voltage of the voltage output side is decreasing due to a dynamic load, the voltage gain control unit is configured to control the voltage generating unit to increase a gain of a voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is lower than the standard output voltage. Then, the voltage gain control unit is configured to control the voltage generating unit to decrease the gain of the voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is equal to the standard output voltage.Type: GrantFiled: July 21, 2015Date of Patent: April 12, 2016Assignee: CHICONY POWER TECHNOLOGY CO., LTD.Inventors: Wen-Nan Huang, Shiu-Hui Lee, Ching-Guo Chen, Yao-Wen Tsai
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Patent number: 9306447Abstract: When a power conversion unit is in a working mode, the power conversion unit converts an alternating current power from an alternating current power supply apparatus into a direct current power. Then, the power conversion unit sends a power starting signal to a first switch control unit. After the first switch control unit receives the power starting signal, the first switch control unit turns on a first switch unit, so that an overall capacitor impedance formed by a first capacitor and a second capacitor is smaller than a first capacitor impedance formed by the first capacitor. When the power conversion unit is not in the working mode, the first switch control unit turns off the first switch unit, so that the overall capacitor impedance is equal to the first capacitor impedance.Type: GrantFiled: June 13, 2014Date of Patent: April 5, 2016Assignee: Chicony Power Technology Co., Ltd.Inventors: Wen-Nan Huang, Shiu-Hui Lee, Yao-Wen Tsai, Ching-Guo Chen, Meng-Hsuan Tsai
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Publication number: 20150326110Abstract: A voltage generating unit generates a standard output voltage and sends to a voltage output side. A voltage detection unit detects a voltage of the voltage output side and informs a voltage gain control unit. When the voltage of the voltage output side is decreasing due to a dynamic load, the voltage gain control unit is configured to control the voltage generating unit to increase a gain of a voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is lower than the standard output voltage. Then, the voltage gain control unit is configured to control the voltage generating unit to decrease the gain of the voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is equal to the standard output voltage.Type: ApplicationFiled: July 21, 2015Publication date: November 12, 2015Inventors: Wen-Nan HUANG, Shiu-Hui LEE, Ching-Guo CHEN, Yao-Wen TSAI
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Patent number: 9122295Abstract: A voltage generating unit generates a standard output voltage and sends to a voltage output side. A voltage detection unit detects a voltage of the voltage output side and informs a voltage gain control unit. When the voltage of the voltage output side is decreasing due to a dynamic load, the voltage gain control unit is configured to control the voltage generating unit to increase a gain of a voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is lower than the standard output voltage. Then, the voltage gain control unit is configured to control the voltage generating unit to decrease the gain of the voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is equal to the standard output voltage.Type: GrantFiled: August 21, 2013Date of Patent: September 1, 2015Assignee: Chicony Power Technology Co., Ltd.Inventors: Wen-Nan Huang, Shiu-Hui Lee, Ching-Guo Chen, Yao-Wen Tsai
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Publication number: 20150180363Abstract: When a power conversion unit is in a working mode, the power conversion unit converts an alternating current power from an alternating current power supply apparatus into a direct current power. Then, the power conversion unit sends a power starting signal to a first switch control unit. After the first switch control unit receives the power starting signal, the first switch control unit turns on a first switch unit, so that an overall capacitor impedance formed by a first capacitor and a second capacitor is smaller than a first capacitor impedance formed by the first capacitor. When the power conversion unit is not in the working mode, the first switch control unit turns off the first switch unit, so that the overall capacitor impedance is equal to the first capacitor impedance.Type: ApplicationFiled: June 13, 2014Publication date: June 25, 2015Inventors: Wen-Nan HUANG, Shiu-Hui LEE, Yao-Wen TSAI, Ching-Guo CHEN, Meng-Hsuan TSAI
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Publication number: 20150054474Abstract: A voltage generating unit generates a standard output voltage and sends to a voltage output side. A voltage detection unit detects a voltage of the voltage output side and informs a voltage gain control unit. When the voltage of the voltage output side is decreasing due to a dynamic load, the voltage gain control unit is configured to control the voltage generating unit to increase a gain of a voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is lower than the standard output voltage. Then, the voltage gain control unit is configured to control the voltage generating unit to decrease the gain of the voltage generated by the voltage generating unit, and the voltage generated by the voltage generating unit is equal to the standard output voltage.Type: ApplicationFiled: August 21, 2013Publication date: February 26, 2015Applicant: Chicony Power Technology Co., Ltd.Inventors: Wen-Nan HUANG, Shiu-Hui LEE, Ching-Guo CHEN, Yao-Wen TSAI
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Patent number: 8848402Abstract: A power factor correction apparatus is applied to an alternating-current voltage apparatus and a rear end circuit. The power factor correction apparatus includes a power factor correction unit, a control unit, and a ripple detecting unit. The power factor correction unit is electrically connected to the rear end circuit and the alternating-current voltage apparatus. The control unit is electrically connected to the power factor correction unit. The ripple detecting unit is electrically connected to the rear end circuit, the power factor correction unit, and the control unit. The control unit is informed by the ripple detecting unit to control the power factor correction unit to adjust the power factor after the ripple of the signal outputted from the power factor correction unit is detected by the ripple detecting unit.Type: GrantFiled: May 25, 2012Date of Patent: September 30, 2014Assignee: Chicony Power Technology Co., Ltd.Inventors: Wen-Nan Huang, Yao-Wen Tsai, Shiu-Hui Lee
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Patent number: 8837173Abstract: A power converting device includes a switching unit, a resonant unit, a converting unit, a rectifying and filtering unit, an inductance-sensing unit, and a driver. The resonant unit is electrically connected to the switching unit and includes a resonant capacitor, a resonant inductor, and a variable magnetizing-inductor having at least two inductances, the resonant inductor is electrically connected to the resonant capacitor and the variable magnetizing-inductor. The converting unit is electrically connected to the resonant unit. The rectifying and filtering unit is electrically connected to the converting unit. The inductance-sensing unit is electrically connected to the rectifying and filtering unit, the inductance-sensing unit instantaneously senses inductances of the variable magnetizing-inductor.Type: GrantFiled: January 2, 2013Date of Patent: September 16, 2014Assignee: Chicony Power Technology Co., LtdInventors: Wen-Nan Huang, Shiu-Hui Lee, Gen-Zen Liu, Yao-Wen Tsai, Chih-Ching Huang
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Publication number: 20140185330Abstract: A power converting device includes a switching unit, a resonant unit, a converting unit, a rectifying and filtering unit, an inductance-sensing unit, and a driver. The resonant unit is electrically connected to the switching unit and includes a resonant capacitor, a resonant inductor, and a variable magnetizing-inductor having at least two inductances, the resonant inductor is electrically connected to the resonant capacitor and the variable magnetizing-inductor. The converting unit is electrically connected to the resonant unit. The rectifying and filtering unit is electrically connected to the converting unit. The inductance-sensing unit is electrically connected to the rectifying and filtering unit, the inductance-sensing unit instantaneously senses inductances of the variable magnetizing-inductor.Type: ApplicationFiled: January 2, 2013Publication date: July 3, 2014Applicant: CHICONY POWER TECHNOLOGY CO., LTD.Inventors: Wen-Nan HUANG, Shiu-Hui LEE, Gen-Zen LIU, Yao-Wen TSAI, Chih-Ching HUANG
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Publication number: 20130314056Abstract: A power factor correction apparatus is applied to an alternating-current voltage apparatus and a rear end circuit. The power factor correction apparatus includes a power factor correction unit, a control unit, and a ripple detecting unit. The power factor correction unit is electrically connected to the rear end circuit and the alternating-current voltage apparatus. The control unit is electrically connected to the power factor correction unit. The ripple detecting unit is electrically connected to the rear end circuit, the power factor correction unit, and the control unit. The control unit is informed by the ripple detecting unit to control the power factor correction unit to adjust the power factor after the ripple of the signal outputted from the power factor correction unit is detected by the ripple detecting unit.Type: ApplicationFiled: May 25, 2012Publication date: November 28, 2013Inventors: Wen-Nan HUANG, Yao-Wen Tsai, Shiu-Hui Lee