Patents by Inventor Litao Zhang
Litao Zhang 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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Publication number: 20250100393Abstract: This application provides a powertrain, a control method for a motor controller, and an electric vehicle. The powertrain includes a motor controller and a drive motor, the motor controller includes three bridge arms connected in parallel, and a bridge arm midpoint of one of the three bridge arms is configured to connect to the other end of the direct current power supply. In response to that the direct current power supply switches from outputting a direct current to stopping outputting the direct current, an upper bridge arm switching transistor of one bridge arm of the other two bridge arms of the three bridge arms is turned on and a lower bridge arm switching transistor of the other bridge arm of the other two bridge arms is turned on. The power battery is configured to supply power to one phase winding and another phase winding, to reduce slipping sound.Type: ApplicationFiled: September 27, 2024Publication date: March 27, 2025Inventors: Ben Zhang, Guozhao Duan, Litao Fan
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Publication number: 20250070672Abstract: The invention discloses a non-isolated DC/DC power converter and a power conversion apparatus. The non-isolated DC/DC power converter comprises a power module comprising a first power conversion circuit, the first power conversion circuit being a non-isolated DC/DC conversion circuit, a first output end of the first power conversion circuit is connected with a first inductor, and a second output end of the first power conversion circuit is connected with a second inductor; and an oscillation suppression module comprising a second power conversion circuit, a first terminal of the second power conversion circuit coupled in parallel to an input end of the first power conversion circuit, a first terminal current of the second power conversion circuit being in phase with at least partial of AC components of an input voltage of the oscillation suppression module, and the second power conversion circuit being a bidirectional DC/DC conversion circuit.Type: ApplicationFiled: August 23, 2023Publication date: February 27, 2025Inventors: Litao XIA, Xinmin BAI, Jinfa ZHANG, Bo WEN, Zhiyu SHEN, PETER MANTOVANELLI BARBOSA
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Publication number: 20250070639Abstract: The disclosure discloses a power conversion system and a control method, the control method includes: providing a power conversion module which includes a damping circuit and a first capacitor connected in series, and a controller, wherein the damping circuit includes a first inductor, a first switch, a second switch, and a second capacitor; obtaining a first current reference value according to an input voltage of the power conversion module, a voltage of the second capacitor, and a voltage reference value; obtaining a second current reference value according to the input voltage of the power conversion module and a current signal related to an input current; and outputting a driving signal according to an inductor current flowing through the first inductor and an inductor current reference value, wherein the current reference value is obtained according to the first current reference value and the second current reference value.Type: ApplicationFiled: March 27, 2024Publication date: February 27, 2025Inventors: Litao XIA, Xinmin BAI, Jinfa ZHANG, Bo WEN, Zhiyu SHEN, PETER MANTOVANELLI BARBOSA
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Publication number: 20220309214Abstract: The present invention relates to a CFD numerical simulation based fluid equipment resistance optimization algorithm, including the following steps: establishing a fluid equipment unit library; establishing CFD models of fluid equipment units in the fluid equipment unit library, and obtaining a correspondence between a flow rate and a resistance of each fluid equipment unit based on a CFD model of the fluid equipment unit; obtaining fluid equipment units that constitute to-be-tested fluid equipment, and a quantity and a connection sequence of the fluid equipment units; calculating a resistance of each fluid equipment unit based on a flow rate and a correspondence between the flow rate and the resistance of each fluid equipment unit; and adding up resistances of the fluid equipment units in the to-be-tested fluid equipment based on their connection sequence, to obtain a resistance of the to-be-tested fluid equipment.Type: ApplicationFiled: March 28, 2021Publication date: September 29, 2022Inventors: Litao Zhang, Yingchao Zhao, Yongwei Zhou, Yifan Zhang, Xin Liao, Erbao Feng
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Patent number: 11217151Abstract: A pixel circuit, an array substrate, and a display panel. The pixel circuit includes an initializing device, a data writing device, a control device, and a current supplementing device. In a light-emitting phase of a driving period of the pixel circuit, a control signal controls the control device to generate a first driving current, and controls the current supplementing device to generate a second driving current. The first driving current and the second driving current are transmitted to a light-emitting unit, and drive the light-emitting unit together for light emission. Currents flowing through the control device and the current supplementing device, respectively, are reduced while meeting a requirement of providing a large driving current to the light-emitting unit. A control capability of the pixel unit on a current of the light-emitting unit is less likely to be weakened, and a display effect is improved.Type: GrantFiled: August 31, 2020Date of Patent: January 4, 2022Assignee: WUHAN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Litao Zhang, Dongliang Dun, Zhiqiang Xia, Ruiyuan Zhou
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Publication number: 20200402449Abstract: A pixel circuit, an array substrate, and a display panel. The pixel circuit includes an initializing device, a data writing device, a control device, and a current supplementing device. In a light-emitting phase of a driving period of the pixel circuit, a control signal controls the control device to generate a first driving current, and controls the current supplementing device to generate a second driving current. The first driving current and the second driving current are transmitted to a light-emitting unit, and drive the light-emitting unit together for light emission. Currents flowing through the control device and the current supplementing device, respectively, are reduced while meeting a requirement of providing a large driving current to the light-emitting unit. A control capability of the pixel unit on a current of the light-emitting unit is less likely to be weakened, and a display effect is improved.Type: ApplicationFiled: August 31, 2020Publication date: December 24, 2020Inventors: Litao Zhang, Dongliang Dun, Zhiqiang Xia, Ruiyuan Zhou
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Publication number: 20170370929Abstract: Described are the discovery, synthesis and pharmacological characterization of ?-opioid receptor-selective positive allosteric modulators (? PAMs). These ? PAMs may increase the affinity and/or efficacy of the orthosteric agonists leu-enkephalin and SNC80, as measured by ?-arrestin recruitment and adenylyl cyclase inhibition. The compounds may be useful pharmacological tools to probe the molecular pharmacology of the ? receptor and to explore the therapeutic potential of ? PAMs in diseases such as chronic pain and depression.Type: ApplicationFiled: December 17, 2015Publication date: December 28, 2017Inventors: Neil T. Burford, Ying Han, Martyn N. Banks, Litao Zhang, Samuel Gerritz, Andrew Alt
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Patent number: 7041451Abstract: The present invention relates to electrochemiluminescent assays for detecting helicase activity. The invention provides a helicase assay that is rapid, sensitive and suitable for high throughput screening for helicase inhibitors. Helicase inhibitors represent a class of pharmacological agents useful for the treatment of disease.Type: GrantFiled: June 28, 2002Date of Patent: May 9, 2006Assignee: sanofi-aventisInventors: Litao Zhang, Richard K Harrison
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Patent number: 7005440Abstract: The use of triaryl acid derivatives of formula (I) and their pharmaceutical compositions as PPAR ligand receptor binders. The PPAR ligand receptor binders of this invention are useful as agonists or antagonists of the PPAR receptor.Type: GrantFiled: November 28, 2000Date of Patent: February 28, 2006Assignee: Aventis Pharma Deutschland GmbHInventors: Zaid Jayyosi, Gerard M. McGeehan, Michael F. Kelley, Richard F. Labaudiniere, Litao Zhang, Robert D. Groneberg, Daniel G. McGarry, Thomas J. Caulfield, Anne Minnich, Mark Bobko, Robert Morris
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Patent number: 6635655Abstract: The use of diaryl acid derivatives of formula (I) or pharmaceutically acceptable salts, N-oxides, hydrates or solvates thereof, wherein the variables shown are defined in the disclosure, and their pharmaceutical compositions as PPAR ligand receptor binders. The PPAR ligand receptor binders of this invention are useful as agonists or antagonists of the PPAR receptor.Type: GrantFiled: September 14, 2000Date of Patent: October 21, 2003Assignee: Aventis Pharma Deutschland GmbHInventors: Zaid Jayyosi, Gerard M. McGeehan, Michael F. Kelley, Richard F. Labaudiniere, Litao Zhang, Robert D. Groneberg, Daniel G. McGarry, Thomas J. Caulfield, Anne Minnich, Mark Bobko
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Publication number: 20030032041Abstract: The present invention relates to electrochemiluminescent assays for detecting helicase activity. The invention provides a helicase assay that is rapid, sensitive and suitable for high throughput screening for helicase inhibitors. Helicase inhibitors represent a class of pharmacological agents useful for the treatment of disease.Type: ApplicationFiled: June 28, 2002Publication date: February 13, 2003Inventors: Litao Zhang, Richard K. Harrison
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Publication number: 20020127549Abstract: The present invention relates to electorchemiluminescent assays for detecting helicase activity. The invention provides a helicase assay that is rapid, sensitive and suitable for high throughput screening for helicase inhibitors. Helicase inhibitors represent a class of pharmacological agents useful for the treatment of disease.Type: ApplicationFiled: October 5, 1999Publication date: September 12, 2002Inventors: LITAO ZHANG, RICHARD K. HARRISON
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Patent number: 6448004Abstract: The present invention relates to electorochemiluminescent assays for detecting helicase activity. The invention provides a helicase assay that is rapid, sensitive and suitable for high throughput screening for helicase inhibitors. Helicase inhibitors represent a class of pharmacological agents useful for the treatment of disease.Type: GrantFiled: October 5, 1999Date of Patent: September 10, 2002Assignee: Aventis Pharmaceuticals Inc.Inventors: Litao Zhang, Richard K. Harrison
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Patent number: RE40558Abstract: The use of diaryl acid derivatives of formula (I) or pharmaceutically acceptable salts, N-oxides, hydrates or solvates thereof, wherein the variables shown are defined in the disclosure, and their pharmaceutical compositions as PPAR ligand receptor binders. The PPAR ligand receptor binders of this invention are useful as agonists or antagonists of the PPAR receptor.Type: GrantFiled: October 20, 2005Date of Patent: October 28, 2008Assignee: Sanofi-Aventis Deutschland GmbHInventors: Zaid Jayyosi, Gerard M. McGeehan, Michael F. Kelley, Richard F. Labaudiniere, Litao Zhang, Robert D. Groneberg, Daniel G. McGarry, Thomas J. Caulfield, Anne Minnich, Mark Bobko