Patents by Inventor Hualiang Li
Hualiang Li 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: 11967859Abstract: The present invention provides a power factor correction circuit (21, 22), a power factor correction assembly (2) and an on-line uninterruptible power supply including the same. The power factor correction circuit (21) comprises a pulse width modulated rectifier (211, 221) and an isolated DC-DC converter (212, 222), wherein an output of the pulse width modulated rectifier (211, 221) is connected to an input of the isolated DC-DC converter (212, 222). The power factor correction assembly (2) comprises a plurality of power factor correction circuits (21, 22) described above, wherein inputs of pulse width modulated rectifiers (211, 221) in the plurality of power factor correction circuits (21, 22) are connected in series, and outputs of isolated DC-DC converters (212, 222) in the plurality of power factor correction circuits (21, 22) are connected in parallel.Type: GrantFiled: December 3, 2019Date of Patent: April 23, 2024Assignee: Eaton Intelligent Power LimitedInventors: Cheng Luo, Huiting Xin, Han Li, Dawei Zheng, Hualiang Li
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Patent number: 11923766Abstract: The present invention provides an apparatus to actively balance the thermal performance of paralleled power devices, comprising: a monitoring unit for monitoring the temperature of each power device of the paralleled power devices to judge whether the temperature is out of balance; and a balancing unit for adjusting power loss of the power devices with monitored higher temperatures so as to achieve the balance of the thermal performance of the paralleled power devices.Type: GrantFiled: November 15, 2021Date of Patent: March 5, 2024Assignee: SANTAK ELECTRONIC (SHENZHEN) CO., LTD.Inventors: Dongxin Jin, Tian Jing, Hualiang Li, Huafen Ouyang, Dawei Zheng
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Publication number: 20240048068Abstract: A stable control system for a three-phase rectification controller circuit is provided. The stable control system filters voltage harmonics and performs attenuation feedback compensation on current harmonics to enable a rectification circuit to achieve high stability and low THDi, while performing filtering on a direct current bus voltage in the case of an unbalanced load, so as to filter out voltage harmonics and enable the circuit to support the unbalanced load. A stable control system for an interleaved direct current booster circuit is also provided. The stable control system equalizes inter-leg currents such that a battery has good dynamic effects and good current equalization performance.Type: ApplicationFiled: August 2, 2023Publication date: February 8, 2024Inventors: HUAHONG NING, DAN LIU, DENGKE ZHANG, HUALIANG LI, DAWEI ZHENG
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Patent number: 11823276Abstract: Embodiments of the disclosure provide a system and method of allocating a resource based on myriad input data. In some embodiments, the myriad input data include membership information, claims data, transactional data, etc. The myriad input data are sorted and organized in a meaningful association relationship before applied to a resource allocation modeling algorithm. The resource allocation modeling algorithm provides estimated resource necessary for the application chosen. For example, an insurance company may use membership information, claims data, transactional data, etc., to estimate how much reserves or funds it should hold to cover future claims within a certain timeframe.Type: GrantFiled: March 2, 2021Date of Patent: November 21, 2023Assignee: Aetna Inc.Inventors: William R. Jones, Gaurav Sharma, Faisal Khan, Hualiang Li, Yue Xiao, Jingran Li, Jamal Timsah, Ryan T. Berns, Sanjeev Bollam, Radhika G. Athalye
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Publication number: 20230291399Abstract: The present invention provides a Miller clamping device for parallel switching transistors and a driver comprising the same. The Miller clamping device includes: a driver chip including an output terminal and a built-in Miller clamping circuit with a Miller clamping terminal, the output terminal of the driver chip being configured to output a pulse width modulation signal; and a plurality of auxiliary Miller clamping circuits, each of the auxiliary Miller clamping circuits being connected between a gate of a corresponding switching transistor and the Miller clamping terminal of the built-in Miller clamping circuit. When the built-in Miller clamping circuit is triggered for Miller clamping, a Miller current generated by the corresponding switching transistor flows to a first direct-current (DC) voltage through a corresponding auxiliary Miller clamping circuit. The Miller clamping device of the present invention can perform Miller clamping on the parallel switching transistors and reduce the circuit cost.Type: ApplicationFiled: September 3, 2021Publication date: September 14, 2023Inventors: DONGXIN JIN, HUAFEN OUYANG, LEI CAO, HUALIANG LI, DAWEI ZHENG
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Publication number: 20230052807Abstract: The present invention provides a control system for a three-phase inverter, which comprises an instantaneous value voltage controller and an equivalent effective value voltage controller, wherein the instantaneous value voltage controller is configured to feed back and control an instantaneous value of an inverter output voltage, the equivalent effective value voltage controller is configured to perform an orthogonal decomposition feedback control on an effective value of the inverter output voltage, and wherein the equivalent effective value voltage controller is configured to perform integral compensation respectively on a real-axis voltage and an imaginary-axis voltage of a two-phase rotating coordinate system of the three-phase inverter, and an output of the instantaneous value voltage controller and an output of the equivalent effective value voltage controller are used to obtain the inverter output voltage through a delay stage transfer function and a controlled object transfer function.Type: ApplicationFiled: August 9, 2022Publication date: February 16, 2023Inventors: Huahong Ning, Dengke Zhang, Hualiang Li, Dawei Zheng
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Publication number: 20220158543Abstract: The present invention provides an apparatus to actively balance the thermal performance of paralleled power devices, comprising: a monitoring unit for monitoring the temperature of each power device of the paralleled power devices to judge whether the temperature is out of balance; and a balancing unit for adjusting power loss of the power devices with monitored higher temperatures so as to achieve the balance of the thermal performance of the paralleled power devices.Type: ApplicationFiled: November 15, 2021Publication date: May 19, 2022Inventors: Dongxin Jin, Tian Jing, Hualiang Li, Huafen Ouyang, Dawei Zheng
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Publication number: 20220021298Abstract: The present invention provides a power factor correction circuit (21, 22), a power factor correction assembly (2) and an on-line uninterruptible power supply including the same. The power factor correction circuit (21) comprises a pulse width modulated rectifier (211, 221) and an isolated DC-DC converter (212, 222), wherein an output of the pulse width modulated rectifier (211, 221) is connected to an input of the isolated DC-DC converter (212, 222). The power factor correction assembly (2) comprises a plurality of power factor correction circuits (21, 22) described above, wherein inputs of pulse width modulated rectifiers (211, 221) in the plurality of power factor correction circuits (21, 22) are connected in series, and outputs of isolated DC-DC converters (212, 222) in the plurality of power factor correction circuits (21, 22) are connected in parallel.Type: ApplicationFiled: December 3, 2019Publication date: January 20, 2022Inventors: Cheng Luo, Huiting Xin, Han Li, Dawei Zheng, Hualiang Li
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Publication number: 20210358674Abstract: The present utility model provides an integrated inductive device, which includes: a first end magnetic core and a second end magnetic core arranged oppositely, each of the first end magnetic core and the second end magnetic core including three areas; three columnar magnetic cores located between the first end magnetic core and the second end magnetic core; and three inductive coils each wound on the periphery of a corresponding columnar magnetic core and located between two corresponding areas of the first end magnetic core and the second end magnetic core. The integrated inductive device of the present utility model is structurally compact, increases the space utilization rate, and reduces the cost.Type: ApplicationFiled: April 30, 2021Publication date: November 18, 2021Inventors: Pingchang Lin, Hualiang Li, Jian Wei
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Publication number: 20210248683Abstract: Embodiments of the disclosure provide a system and method of allocating a resource based on myriad input data. In some embodiments, the myriad input data include membership information, claims data, transactional data, etc. The myriad input data are sorted and organized in a meaningful association relationship before applied to a resource allocation modeling algorithm. The resource allocation modeling algorithm provides estimated resource necessary for the application chosen. For example, an insurance company may use membership information, claims data, transactional data, etc., to estimate how much reserves or funds it should hold to cover future claims within a certain timeframe.Type: ApplicationFiled: March 2, 2021Publication date: August 12, 2021Inventors: William R. Jones, Gaurav Sharma, Faisal Khan, Hualiang Li, Yue Xiao, Jingran Li, Jamal Timsah, Ryan T. Berns, Sanjeev Bollam, Radhika G. Athalye
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Patent number: 10937102Abstract: Embodiments of the disclosure provide a system and method of allocating a resource based on myriad input data. In some embodiments, the myriad input data include membership information, claims data, transactional data, etc. The myriad input data are sorted and organized in a meaningful association relationship before applied to a resource allocation modeling algorithm. The resource allocation modeling algorithm provides estimated resource necessary for the application chosen. For example, an insurance company may use membership information, claims data, transactional data, etc., to estimate how much reserves or funds it should hold to cover future claims within a certain timeframe.Type: GrantFiled: December 23, 2016Date of Patent: March 2, 2021Assignee: Aetna Inc.Inventors: William R. Jones, Gaurav Sharma, Faisal Khan, Hualiang Li, Yue Xiao, Jingran Li, Jamal Timsah, Ryan T. Berns, Sanjeev Bollam, Radhika G. Athalye
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Patent number: 10687650Abstract: An electric pressure cooker having a safety switch device. The electric pressure cooker includes a cooker body and a lid; wherein the cooker body is provided with a push rod vertically reciprocating relative to the cooker body; the cooker body is further provided with a microswitch; a driving rod of the microswitch horizontally reciprocates relative to the cooker body; after the push rod moves downward, the driving rod of the microswitch is pushed to trigger the microswitch by the push rod; after the push rod moves upward, the driving rod of the microswitch is detached from the push rod; an upper end of the push rod abuts against the lid and the push rod moves upward and downward with rotation of the lid to detach from and push the push rod of the microswitch; and the microswitch is electrically connected to a circuitry of the electric pressure cooker.Type: GrantFiled: October 13, 2017Date of Patent: June 23, 2020Assignee: Guangdong Shunde Ouning Technology Electrical Appliance Co., Ltd.Inventors: Zhen xiong Huang, Ziyu Li, Jiufu Tan, Hualiang Li
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Publication number: 20180110355Abstract: An electric pressure cooker having a safety switch device. The electric pressure cooker includes a cooker body and a lid; wherein the cooker body is provided with a push rod vertically reciprocating relative to the cooker body; the cooker body is further provided with a microswitch; a driving rod of the microswitch horizontally reciprocates relative to the cooker body; after the push rod moves downward, the driving rod of the microswitch is pushed to trigger the microswitch by the push rod; after the push rod moves upward, the driving rod of the microswitch is detached from the push rod; an upper end of the push rod abuts against the lid and the push rod moves upward and downward with rotation of the lid to detach from and push the push rod of the microswitch; and the microswitch is electrically connected to a circuitry of the electric pressure cooker.Type: ApplicationFiled: October 13, 2017Publication date: April 26, 2018Applicant: Guangdong Shunde Ouning Technology Electrical Appliance Co., Ltd.Inventors: Zhen xiong HUANG, Ziyu LI, Jiufu TAN, Hualiang LI
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Publication number: 20170186093Abstract: Embodiments of the disclosure provide a system and method of allocating a resource based on myriad input data. In some embodiments, the myriad input data include membership information, claims data, transactional data, etc. The myriad input data are sorted and organized in a meaningful association relationship before applied to a resource allocation modeling algorithm. The resource allocation modeling algorithm provides estimated resource necessary for the application chosen. For example, an insurance company may use membership information, claims data, transactional data, etc., to estimate how much reserves or funds it should hold to cover future claims within a certain timeframe.Type: ApplicationFiled: December 23, 2016Publication date: June 29, 2017Inventors: William R. Jones, Gaurav Sharma, Faisal Khan, Hualiang Li, Yue Xiao, Jingran Li, Jamal Timsah, Ryan T. Berns, Sanjeev Bollam, Radhika G. Athalye