Patents by Inventor Xiaoping Fu
Xiaoping Fu 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: 11193639Abstract: A light module and a manufacturing method are provided. The light module comprises a first and a second substrate separated from a prefabricated substrate along a closed curve, the first substrate is detachable connected and/or fixed with the second substrate; light emitting elements mounted on one of the first and second substrate; and a drive element mounted on the other one of the first and second substrate. The method comprises: determining a closed curve on a prefabricated substrate to separate the prefabricated substrate into a first region and a second region; providing light emitting elements and first electronic element on first surface of the prefabricated substrate; providing second electronic element on second surface of the prefabricated substrate; separating a first and second substrate from the prefabricated substrate along the closed curve; and assembling and connecting the second substrate with the first substrate at a separation opening.Type: GrantFiled: January 25, 2021Date of Patent: December 7, 2021Assignee: Delta Electronics (Shanghai) Co., Ltd.Inventors: Zhaowei Chai, Chun-Jen Chung, Xiaoping Fu, Xinghua Zhang
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Publication number: 20210378069Abstract: A dimming control method and a dimming circuit are used to control the brightness of a LED. The dimming circuit includes a power conversion unit having an input end, an output end, an inductor, and a switch. When the dimming current signal is higher than or equal to a first current threshold, the switch is controlled such that the power conversion unit operates in a continuous Conduction mode or a boundary Conduction mode; when the dimming current signal is lower than the first current threshold, the switch is controlled such that the power conversion unit operates in a discontinuous Conduction mode; and when the dimming current signal is lower than a second current threshold, the switch is controlled such that the power conversion unit operates in a chopping control mode.Type: ApplicationFiled: May 18, 2021Publication date: December 2, 2021Inventors: Yugang BAO, Xinghua ZHANG, Xiaoping FU
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Patent number: 11147139Abstract: The present disclosure discloses a device and a method for driving an LED. The device includes: a rectifier circuit for receiving an AC voltage and convert the AC voltage into a first DC voltage; a capacitance-adjusting circuit including a first capacitor, a second capacitor and a switch; and a DC-DC converter for converting the first DC voltage into a second DC voltage, wherein a range of a voltage value of the AC voltage comprises a first AC voltage range and a second AC voltage range, and when the voltage value of the AC voltage is in the first AC voltage range, the capacitance-adjusting circuit has a first capacitance value; and when the voltage value of the AC voltage is in the second AC voltage range, the capacitance-adjusting circuit has a second capacitance value, and the first capacitance value is greater than the second capacitance value.Type: GrantFiled: December 10, 2019Date of Patent: October 12, 2021Assignee: Delta Electronics (Shanghai) CO., LTDInventors: Xiaobo Wang, Xiaoping Fu, Xinghua Zhang
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Patent number: 11095126Abstract: Provided is an anti-islanding protection system. The system is applied to a low-voltage distributed generation resource (DGR) and includes a box, a reverse power protector, a protection module and an output controller. The reverse power protector has an end connected to a first current transformer and has another end connected to the output controller. The reverse power protector is configured to provide reverse power protection for the low-voltage DGR. The output controller has an end connected to the protection module and the reverse power protector and has another end connected to a grid-connection switch of the low-voltage DGR. The output controller is configured to control the grid-connection switch to turn off when reserve power is detected. The protection module has an end connected to a second current transformer and has another end connected to the output controller.Type: GrantFiled: February 27, 2019Date of Patent: August 17, 2021Assignees: State Grid Zhejiang Electric Power Co., Ltd. Taizhou Power Supply Company, State Grid Corporation of ChinaInventors: Xiaoping Fu, Wenqi He, Chi Zhang, Dongbo Zhang, Daojian Hong, Yuande Zheng, Minzhi Chen, Mingxu Chen, Zhen Huang, Guode Ying
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Publication number: 20210148530Abstract: A light module and a manufacturing method are provided. The light module comprises a first and a second substrate separated from a prefabricated substrate along a closed curve, the first substrate is detachable connected and/or fixed with the second substrate; light emitting elements mounted on one of the first and second substrate; and a drive element mounted on the other one of the first and second substrate. The method comprises: determining a closed curve on a prefabricated substrate to separate the prefabricated substrate into a first region and a second region; providing light emitting elements and first electronic element on first surface of the prefabricated substrate; providing second electronic element on second surface of the prefabricated substrate; separating a first and second substrate from the prefabricated substrate along the closed curve; and assembling and connecting the second substrate with the first substrate at a separation opening.Type: ApplicationFiled: January 25, 2021Publication date: May 20, 2021Inventors: Zhaowei CHAI, CHUN-JEN CHUNG, Xiaoping FU, Xinghua ZHANG
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Publication number: 20210139537Abstract: The present invention discloses a polypeptide compound, a pharmaceutical composition, and a preparation method and use thereof. The structural formula of the polypeptide compound is shown in general formula (I): Such polypeptide compounds as ?-opioid receptor agonists have the advantages of better activity and the potential to become clinical candidate compounds.Type: ApplicationFiled: November 9, 2020Publication date: May 13, 2021Applicant: CHENGDU SINTANOVO BIOTECHNOLOGY CO., LTD.Inventors: Jian GAO, Xiaoping FU, Guoqing ZHONG, Haibo ZHOU, Hai HU, Xi HU, Yu YUAN, Yuanbo LI
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Patent number: 10972012Abstract: Embodiments of the present application provide a control circuit and a control method of a flyback converter, the control circuit comprises: a first sampling module, a second sampling module, and a control module; the first sampling module is coupled to the control module and the flyback converter, and outputs a first voltage signal to the control module; the second sampling module is coupled to the control module and the flyback converter, and outputs a second voltage signal to the control module; where the first voltage signal reflects an input voltage of the flyback converter, the second voltage signal reflects an output voltage of the flyback converter; the control module outputs a control signal according to the first voltage signal and the second voltage signal, and the control signal reflects a turn-on time of the switch in the flyback converter.Type: GrantFiled: August 31, 2018Date of Patent: April 6, 2021Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.Inventors: Xiaoping Fu, Xinghua Zhang
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Patent number: 10935197Abstract: A light module and a manufacturing method are provided. The light module comprises a first and a second substrate separated from a prefabricated substrate along a closed curve, the first substrate is detachable connected and/or fixed with the second substrate; light emitting elements mounted on one of the first and second substrate; and a drive element mounted on the other one of the first and second substrate. The method comprises: determining a closed curve on a prefabricated substrate to separate the prefabricated substrate into a first region and a second region; providing light emitting elements and first electronic element on first surface of the prefabricated substrate; providing second electronic element on second surface of the prefabricated substrate; separating a first and second substrate from the prefabricated substrate along the closed curve; and assembling and connecting the second substrate with the first substrate at a separation opening.Type: GrantFiled: March 23, 2020Date of Patent: March 2, 2021Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.Inventors: Zhaowei Chai, Chun-Jen Chung, Xiaoping Fu, Xinghua Zhang
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Publication number: 20200367521Abstract: The present invention relates to beverage products, in particular a liquid non-dairy creamer composition comprising high oleic oils; micellar casein; emulsifiers comprising a mixture of mono- and di-glycerides and diacetyl tartaric acid esters of mono- and di-glycerides; and hydrocolloids comprising a mixture of carrageenan, microcrystalline cellulose and carboxymethyl cellulose.Type: ApplicationFiled: November 27, 2018Publication date: November 26, 2020Inventors: Jean-Baptiste Bezelgues, Winnie Octavia, Richard Nelson, Xiaoping Fu, Jun-Tse Ray Fu, Alexander A. Sher
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Patent number: 10849195Abstract: A dimmer control circuit for controlling a phase cut dimmer includes: a rectifier circuitry, configured to rectify the output voltage of the phase cut dimmer to output a rectified voltage; an input voltage detecting circuitry, configured to output a detected voltage according to the rectified voltage; a processor, configured to output a control signal when the detected voltage meets a preset condition; and a constant current circuitry, configured to output or stop outputting a preset current to the rectifier circuitry in response to the control signal; wherein the preset current has a value greater than a holding current of the phase cut dimmer.Type: GrantFiled: March 15, 2019Date of Patent: November 24, 2020Assignee: Delta Electronics, Inc.Inventors: Xiaoping Fu, Yugang Bao, Linwei Chen, Xinghua Zhang
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Publication number: 20200318802Abstract: A light module and a manufacturing method are provided. The light module comprises a first and a second substrate separated from a prefabricated substrate along a closed curve, the first substrate is detachable connected and/or fixed with the second substrate; light emitting elements mounted on one of the first and second substrate; and a drive element mounted on the other one of the first and second substrate. The method comprises: determining a closed curve on a prefabricated substrate to separate the prefabricated substrate into a first region and a second region; providing light emitting elements and first electronic element on first surface of the prefabricated substrate; providing second electronic element on second surface of the prefabricated substrate; separating a first and second substrate from the prefabricated substrate along the closed curve; and assembling and connecting the second substrate with the first substrate at a separation opening.Type: ApplicationFiled: March 23, 2020Publication date: October 8, 2020Inventors: Zhaowei CHAI, CHUN-JEN CHUNG, Xiaoping FU, Xinghua ZHANG
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Publication number: 20200236981Abstract: Natural Creamers for providing whitening and indulgent texture/mouthfeel of beverage and food products are provided. The creamers have long-term stability, high whitening capacity and a pleasant mouthfeel when added to beverage and food, while being free from artificial additives the creamers comprising plant oil and plant proteins, and being further characterized in that the creamers comprise baking soda and citrus fruit juice concentrate, wherein the citrus fruit juice concentrate comprises acid component comprising citric acid and malic acid.Type: ApplicationFiled: September 28, 2018Publication date: July 30, 2020Inventors: Philippe Rousset, Maxne Saffon, Peter Steffes, Xiaoping Fu
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Publication number: 20200205265Abstract: The present disclosure discloses a device and a method for driving an LED. The device includes: a rectifier circuit for receiving an AC voltage and convert the AC voltage into a first DC voltage; a capacitance-adjusting circuit including a first capacitor, a second capacitor and a switch; and a DC-DC converter for converting the first DC voltage into a second DC voltage, wherein a range of a voltage value of the AC voltage comprises a first AC voltage range and a second AC voltage range, and when the voltage value of the AC voltage is in the first AC voltage range, the capacitance-adjusting circuit has a first capacitance value; and when the voltage value of the AC voltage is in the second AC voltage range, the capacitance-adjusting circuit has a second capacitance value, and the first capacitance value is greater than the second capacitance value.Type: ApplicationFiled: December 10, 2019Publication date: June 25, 2020Applicant: Delta Electronics (Shanghai) CO., LTDInventors: Xiaobo WANG, Xiaoping FU, Xinghua ZHANG
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Publication number: 20200176995Abstract: Provided is an anti-islanding protection system. The system is applied to a low-voltage distributed generation resource (DGR) and includes a box, a reverse power protector, a protection module and an output controller. The reverse power protector has an end connected to a first current transformer and has another end connected to the output controller. The reverse power protector is configured to provide reverse power protection for the low-voltage DGR. The output controller has an end connected to the protection module and the reverse power protector and has another end connected to a grid-connection switch of the low-voltage DGR. The output controller is configured to control the grid-connection switch to turn off when reserve power is detected. The protection module has an end connected to a second current transformer and has another end connected to the output controller.Type: ApplicationFiled: February 27, 2019Publication date: June 4, 2020Inventors: Xiaoping FU, Wenqi HE, Chi ZHANG, Dongbo ZHANG, Daojian HONG, Yuande ZHENG, Minzhi CHEN, Mingxu CHEN, Zhen HUANG, Guode YING
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Publication number: 20200154537Abstract: A dimming circuit includes a DC/DC conversion unit and a control module. The control module provides a switching period reference, and samples an input voltage and an output voltage. The control module calculates a turn-on time according to the input voltage, the output voltage and a reference current signal. The control module generates a variation period signal which is cyclically-changed. The variation period signal is combined with the switching period reference or the turn-on time. Consequently, a pulse width modulation signal cyclically changed is generated by the switching period reference, the turn-on time and the variation period signal. Since the switching periods is cyclically changed, the average of the output current is close to the ideal value.Type: ApplicationFiled: October 31, 2019Publication date: May 14, 2020Inventors: Xiaoping Fu, Xinghua Zhang
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Patent number: 10645946Abstract: The present invention relates to a method of producing a freeze dried soluble coffee powder which produces foam when dissolved in water. The method involves partly melting the surface of a granulated frozen coffee extract and mixing it with a porous spray dried coffee powder whereby the porous spray dried powder particles stick to the surface of the granulated frozen coffee extract particles, and freeze drying the particles.Type: GrantFiled: December 8, 2014Date of Patent: May 12, 2020Assignee: Societe des Produits Nestle S.A.Inventors: Robert Thomas Boehm, Xiaoping Fu, Adam Gregory Yunker
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Patent number: 10638580Abstract: The present disclosure provides a multi-mode dimming control method and a dimming circuit. The multi-mode current control method includes: receiving a dimming signal, and controlling the dimming circuit to be operated in a plurality of modes in an arbitrary order according to the dimming signal, wherein the plurality of modes include any two or all of a first dimming mode, a second dimming mode, and a third dimming mode. Also, the dimming circuit can be operated in different combinations of different modes according to actual needs, so that the requirements of a wide dimming range and a low output current ripple can be realized.Type: GrantFiled: April 23, 2019Date of Patent: April 28, 2020Assignee: Delta Electronics,Inc.Inventors: Que Wu, Xiaoping Fu, Kaibin Zheng, Xinghua Zhang
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Publication number: 20190394844Abstract: The present disclosure provides a multi-mode dimming control method and a dimming circuit. The multi-mode current control method includes: receiving a dimming signal, and controlling the dimming circuit to be operated in a plurality of modes in an arbitrary order according to the dimming signal, wherein the plurality of modes include any two or all of a first dimming mode, a second dimming mode, and a third dimming mode. Also, the dimming circuit can be operated in different combinations of different modes according to actual needs, so that the requirements of a wide dimming range and a low output current ripple can be realized.Type: ApplicationFiled: April 23, 2019Publication date: December 26, 2019Applicant: Delta Electronics,Inc.Inventors: Que WU, Xiaoping FU, Kaibin ZHENG, Xinghua ZHANG
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Publication number: 20190305682Abstract: The present invention discloses a power supply device, configured to supply an output power to a plurality of lighting loads, comprising a filter rectifier module for filtering and rectifying an input voltage and outputting a rectified voltage, a plurality of power modules, and at least one dimming module. The plurality of power modules are disposed in parallel at one side of the power source device and adjacent to the plurality of power modules. Each power module includes a PFC unit for performing a power factor correction of the rectified voltage and outputting a corrected voltage; a PFC control unit for controlling the PFC unit; a DC/DC conversion unit for converting the corrected voltage into an output voltage and outputting it to the corresponding lighting load; and a DC/DC control unit for controlling the DC/DC conversion unit.Type: ApplicationFiled: December 17, 2018Publication date: October 3, 2019Inventors: Que WU, Xiaoping FU, Zhaowei CHAI, Xinghua ZHANG, Jinfa ZHANG
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Publication number: 20190297715Abstract: A dimmer control circuit for controlling a phase cut dimmer includes: a rectifier circuitry, configured to rectify the output voltage of the phase cut dimmer to output a rectified voltage; an input voltage detecting circuitry, configured to output a detected voltage according to the rectified voltage; a processor, configured to output a control signal when the detected voltage meets a preset condition; and a constant current circuitry, configured to output or stop outputting a preset current to the rectifier circuitry in response to the control signal; wherein the preset current has a value greater than a holding current of the phase cut dimmer.Type: ApplicationFiled: March 15, 2019Publication date: September 26, 2019Applicant: Delta Electronics,Inc.Inventors: Xiaoping FU, Yugang BAO, Linwei CHEN, Xinghua ZHANG