Patents by Inventor WEI-HSUN LAI
WEI-HSUN LAI 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: 11917230Abstract: A system and method for maximizing bandwidth in an uplink for a 5G communication system is disclosed. Multiple end devices generate image streams. A gateway is coupled to the end devices. The gateway includes a gateway monitor agent collecting utilization rate data of the gateway and an image inspector collecting inspection data from the received image streams. An edge server is coupled to the gateway. The edge server includes an edge server monitor agent collecting utilization rate data of the edge server. An analytics manager is coupled to the gateway and the edge server. The analytics manager is configured to determine an allocation strategy based on the collected utilization rate data from the gateway and the edge server.Type: GrantFiled: October 6, 2021Date of Patent: February 27, 2024Assignee: Quanta Cloud Technology Inc.Inventors: Yi-Neng Zeng, Keng-Cheng Liu, Wei-Ming Huang, Shih-Hsun Lai, Ji-Jeng Lin, Chia-Jui Lee, Liao Jin Xiang
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Patent number: 11721478Abstract: A residual current device includes an insulating housing, an electromagnetic induction module, a leakage current detecting module and an electromagnetic shielding structure. The insulating housing includes a base and a lid. The electromagnetic induction module is disposed in the base. The electromagnetic induction module includes a core base and an iron core. The leakage current detecting module is disposed in the base. The leakage current detecting module includes a circuit board assembly, a detecting circuit disposed on the circuit board assembly and a lead frame electrically connected to the circuit board assembly. The electromagnetic shielding structure is disposed in the base and covers the leakage current detecting module. The effect of preventing electromagnetic interference is achieved.Type: GrantFiled: January 26, 2021Date of Patent: August 8, 2023Assignee: DELTA ELECTRONICS, INC.Inventors: Wei-Hsun Lai, You-Jhih Jheng
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Patent number: 11698191Abstract: An ignition method of a plasma chamber includes steps of: (a) starting softly an ignition voltage to a first voltage, (b) decreasing the magnitude of the ignition voltage to a second voltage after a first ignition time, (c) increasing the magnitude of the ignition voltage to the first voltage after a second ignition time, and (d) repeating the step (b) and the step (c) until the ignition is successful.Type: GrantFiled: August 21, 2020Date of Patent: July 11, 2023Assignee: DELTA ELECTRONICS, INC.Inventors: Kun-Han Yang, Chin-Chang Kuo, Wei-Hsun Lai
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Publication number: 20230126427Abstract: A pulsed-DC power generator is used to sputter a substrate in a chamber, and the power generator includes a first voltage source, a second voltage source, a switch unit, a control unit, and a detection unit. The control unit provides a first control signal to control the switching of the switch unit to integrate a first voltage of the first voltage source and a second voltage of the second voltage source into a pulse voltage. The control unit adjusts parameters of a first predetermined time period for arc extinction when the pulse voltage is in a working time period of the first voltage, and the number that a voltage value of the first voltage in a voltage variation to be higher than a range is higher than the number of occurrence.Type: ApplicationFiled: April 5, 2022Publication date: April 27, 2023Inventors: Wei-Hsun LAI, Chien-Yu WANG
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Publication number: 20220234463Abstract: A charging apparatus for use with an electric vehicle includes a power transmission path, a switch, a first controller, a communication unit, and a second controller. The switch is disposed on the power transmission path. The communication unit is coupled to a second connection port. The first controller is coupled to the power transmission path, the switch, the second controller, and the communication unit. When the second controller receives a first request from a power management system and correspondingly notifies the first controller, the first controller switches from a first signal to a second signal to communicate with the electric vehicle and turns off the switch, and when the first controller receives a first EV notification provided from the electric vehicle, the controller turns on the switch.Type: ApplicationFiled: September 1, 2021Publication date: July 28, 2022Inventors: Jui-Yuan HSU, Wei-Hsun LAI, Ming-Yu JIANG, Bo-Song LIN, Jung-Lien SHIH
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Publication number: 20220102067Abstract: A residual current device includes an insulating housing, an electromagnetic induction module, a leakage current detecting module and an electromagnetic shielding structure. The insulating housing includes a base and a lid. The electromagnetic induction module is disposed in the base. The electromagnetic induction module includes a core base and an iron core. The leakage current detecting module is disposed in the base. The leakage current detecting module includes a circuit board assembly, a detecting circuit disposed on the circuit board assembly and a lead frame electrically connected to the circuit board assembly. The electromagnetic shielding structure is disposed in the base and covers the leakage current detecting module. The effect of preventing electromagnetic interference is achieved.Type: ApplicationFiled: January 26, 2021Publication date: March 31, 2022Inventors: Wei-Hsun LAI, You-Jhih JHENG
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Publication number: 20210317989Abstract: An ignition method of a plasma chamber includes steps of: (a) starting softly an ignition voltage to a first voltage, (b) decreasing the magnitude of the ignition voltage to a second voltage after a first ignition time, (c) increasing the magnitude of the ignition voltage to the first voltage after a second ignition time, and (d) repeating the step (b) and the step (c) until the ignition is successful.Type: ApplicationFiled: August 21, 2020Publication date: October 14, 2021Inventors: Kun-Han YANG, Chin-Chang KUO, Wei-Hsun LAI
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Patent number: 11114934Abstract: A power supply device includes an inductor, a switch, a power supply, and a snubber circuit. A first terminal of the switch is coupled to a first terminal of the inductor. A first terminal of the power supply is coupled to a second terminal of the witch. A first terminal of the snubber circuit is coupled to the first terminal of the switch at a first voltage output terminal. A second terminal of the snubber circuit is electrically coupled to a second terminal of the power supply at a second voltage output terminal, in which the inductor, the switch, the power supply, and the snubber circuit are configured to cooperate to generate an output voltage at the first voltage output terminal and the second voltage output terminal.Type: GrantFiled: January 21, 2020Date of Patent: September 7, 2021Assignee: DELTA ELECTRONICS, INC.Inventors: Wei-Hsun Lai, Wei-Cheng Lin, Po-Cheng Chiu, Chien-Yu Wang
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Patent number: 11011989Abstract: A power supply circuit includes an energy storage element, a first switch, a voltage signal converter, a second switch, a third switch and a power supply. The first switch is coupled to the energy storage element at a first voltage output terminal. The voltage signal converter is coupled to, respectively, the energy storage element and the first switch at a first converter output terminal and a second converter output terminal. The second switch is coupled to the first switch. The third switch is coupled to the second switch at a second voltage output terminal. The power supply is coupled to the second switch and the third switch. The energy storage element, the first switch, the voltage signal converter, the second switch, the third switch and the power supply cooperate and generate a output voltage. A method of operating the power supply circuit is also disclosed herein.Type: GrantFiled: January 16, 2020Date of Patent: May 18, 2021Assignee: DELTA ELECTRONICS, INC.Inventors: Wei-Hsun Lai, Chien-Yu Wang, Po-Cheng Chiu, Wei-Cheng Lin
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Publication number: 20210006150Abstract: A power supply device includes an inductor, a switch, a power supply, and a snubber circuit. A first terminal of the switch is coupled to a first terminal of the inductor. A first terminal of the power supply is coupled to a second terminal of the witch. A first terminal of the snubber circuit is coupled to the first terminal of the switch at a first voltage output terminal. A second terminal of the snubber circuit is electrically coupled to a second terminal of the power supply at a second voltage output terminal, in which the inductor, the switch, the power supply, and the snubber circuit are configured to cooperate to generate an output voltage at the first voltage output terminal and the second voltage output terminal.Type: ApplicationFiled: January 21, 2020Publication date: January 7, 2021Inventors: Wei-Hsun LAI, Wei-Cheng LIN, Po-Cheng CHIU, Chien-Yu WANG
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Publication number: 20200412244Abstract: A power supply circuit includes an energy storage element, a first switch, a voltage signal converter, a second switch, a third switch and a power supply. The first switch is coupled to the energy storage element at a first voltage output terminal. The voltage signal converter is coupled to, respectively, the energy storage element and the first switch at a first converter output terminal and a second converter output terminal. The second switch is coupled to the first switch. The third switch is coupled to the second switch at a second voltage output terminal. The power supply is coupled to the second switch and the third switch. The energy storage element, the first switch, the voltage signal converter, the second switch, the third switch and the power supply cooperate and generate a output voltage. A method of operating the power supply circuit is also disclosed herein.Type: ApplicationFiled: January 16, 2020Publication date: December 31, 2020Inventors: Wei-Hsun LAI, Chien-Yu WANG, Po-Cheng CHIU, Wei-Cheng LIN
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Patent number: 10111315Abstract: An arc suppression device includes an AC to DC converter, a switch, a resistor and a controller. The switch is coupled between the AC to DC converter and a plasma chamber. The resistor is coupled in parallel with the switch. The AC to DC converter is configured to convert an AC voltage into a DC voltage for providing to the plasma chamber. The controller is configured to detect a unit-time rate of change (ROC) of a plasma current received by the plasma chamber. When the controller determines that the unit-time ROC of the plasma current is larger than a first unit-time ROC threshold, the controller controls the switch to electrically isolate the AC to DC converter and the plasma chamber to reduce the plasma current to a first current value through the resistor.Type: GrantFiled: November 13, 2017Date of Patent: October 23, 2018Assignee: DELTA ELECTRONICS, INC.Inventors: Wei-Hsun Lai, Chien-Yu Wang, Po-Cheng Chiu, Chih-Chun Chen
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Patent number: 10111187Abstract: A method for improving an efficiency of a radio-frequency amplifier includes following steps. A set of predetermined parameters are set. A total circuit parameter is calculated according to the set of the predetermined parameters. A switch stress of a power switch is calculated according to the set of the predetermined parameters and the total circuit parameter. A first curve graph is made according to a duty cycle corresponding to the switch stress. The efficiency is calculated according to the set of the predetermined parameters and the total circuit parameter. A second curve graph is made according to the duty cycle corresponding to the efficiency of the radio-frequency amplifier. A value of the duty cycle is selected according to the first curve graph. The efficiency corresponding to the value of the duty cycle is obtained according to the second curve graph.Type: GrantFiled: August 17, 2017Date of Patent: October 23, 2018Assignee: Delta Electronics, Inc.Inventors: Wei-Hsun Lai, Chi Hsu
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Publication number: 20180167898Abstract: A method for improving an efficiency of a radio-frequency amplifier includes following steps. A set of predetermined parameters are set. A total circuit parameter is calculated according to the set of the predetermined parameters. A switch stress of a power switch is calculated according to the set of the predetermined parameters and the total circuit parameter. A first curve graph is made according to a duty cycle corresponding to the switch stress. The efficiency is calculated according to the set of the predetermined parameters and the total circuit parameter. A second curve graph is made according to the duty cycle corresponding to the efficiency of the radio-frequency amplifier. A value of the duty cycle is selected according to the first curve graph. The efficiency corresponding to the value of the duty cycle is obtained according to the second curve graph.Type: ApplicationFiled: August 17, 2017Publication date: June 14, 2018Inventors: Wei-Hsun LAI, Chi HSU
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Patent number: 9496444Abstract: The invention is related to a method for forming dendritic silver with periodic structure as light-trapping layer, includes these steps: form a photoresist layer on a conductive substrate, and at least two coherent light beams is provided in using a laser interference lithography apparatus, to form a plurality of particular patterns respectively on the setting-exposure positions of the conductive substrate in sequence till the particular periods pattern formed. Thereafter, form the dendritic silver nanostructure with period pattern on the conductive substrate via electrochemical process, wherein operating voltage is 2V or higher, and electrochemical reaction time is 10 sec or higher.Type: GrantFiled: February 3, 2015Date of Patent: November 15, 2016Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUANInventors: Der-Jun Jan, Shih-Shou Lo, Wei-Hsun Lai, Wei-Hsiu Hsu
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Publication number: 20160099364Abstract: The invention is related to a method for forming dendritic silver with periodic structure as light-trapping layer, includes these steps: form a photoresist layer on a conductive substrate, and at least two coherent light beams is provided in using a laser interference lithography apparatus, to form a plurality of particular patterns respectively on the setting-exposure positions of the conductive substrate in sequence till the particular periods pattern formed. Thereafter, form the dendritic silver nanostructure with period pattern on the conductive substrate via electrochemical process, wherein operating voltage is 2V or higher, and electrochemical reaction time is 10 sec or higher.Type: ApplicationFiled: February 3, 2015Publication date: April 7, 2016Inventors: DER-JUN JAN, SHIH-SHOU LO, WEI-HSUN LAI, WEI-HSIU HSU