Patents by Inventor Yongtao Liang
Yongtao Liang 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: 11738653Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes a battery, a Direct Current (DC) bus connected to the battery, and a DC to DC converter connected to the battery in parallel with the DC bus. A Motor Control Unit (MCU) is connected between the DC to DC converter and an electric motor. An Alternating Current (AC) port is connected to the electric motor. Switches connect the DC bus and an output of the DC to DC converter in series as an input to the MCU in a drive mode and disconnect the DC bus from the MCU in a charge mode.Type: GrantFiled: June 24, 2020Date of Patent: August 29, 2023Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Huibin Zhu, Heping Dai, Yongtao Liang, Weiping Liu, Feng Su, Shaohua Wang
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Patent number: 11677328Abstract: A converter and a power supply system are disclosed, and relate to the power electronics field, to resolve a problem that a sampling circuit in an OBC circuit is relatively complex. The converter includes an alternating current unit, a switching unit, a conversion unit, a direct current unit, and a controller. The alternating current unit includes a U line, a V line, a W line, and an N line. The N line is connected to a ground of the controller, so that the controller can be directly connected to the U line, the V line, and the W line, to collect a voltage of the U line, a voltage of the V line, and a voltage of the W line. This simplifies the sampling circuit.Type: GrantFiled: September 21, 2021Date of Patent: June 13, 2023Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Weiping Liu, Yongtao Liang, Chen Chen
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Patent number: 11588397Abstract: A power conversion system includes a first power conversion port including a three-level power factor correction device and a primary power conversion circuit, a second power conversion port including a three-level rectifier and a third power conversion port including a rectifier, the first power conversion port, the second power conversion port and the third power conversion port magnetically coupled to each other through a transformer.Type: GrantFiled: June 11, 2020Date of Patent: February 21, 2023Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Huibin Zhu, Heping Dai, Liming Ye, Yongtao Liang, Weiping Liu
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Patent number: 11532978Abstract: A power conversion module, a vehicle-mounted charger, and an electric vehicle may be used in the field of new energy vehicles. The power conversion module includes a power factor correction PFC module and a first direct current-direct current DC-DC converter. A first primary circuit of the first DC-DC converter has a first bridge arm, a second bridge arm, a third bridge arm, and a fourth bridge arm. A first switch is disposed between the first bridge arm and an inductor at an interface of the PFC module, and a second switch is disposed between the third bridge arm and another interface of the PFC module.Type: GrantFiled: December 31, 2020Date of Patent: December 20, 2022Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Yongtao Liang, Weiping Liu, Feng Su
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Patent number: 11527354Abstract: This application provides a magnetic integrated device, a power conversion circuit, a charger, and an electric vehicle, and pertains to the field of power electronics technologies. The magnetic integrated device includes a magnetic core, a first transformer winding, and a second transformer winding, where the first transformer winding and the second transformer winding are separated and wound, and a first air gap is formed at separation. A magnetic line may pass through the first air gap to form leakage inductance, and the leakage inductance may be equivalent to resonant inductance in the power conversion circuit. Therefore, there is no need to separately dispose an inductor winding in the magnetic integrated device. This effectively reduces a volume and a weight of the magnetic integrated device. In addition, the power conversion circuit that uses the magnetic integrated device also has a relatively small volume and relatively high-power density.Type: GrantFiled: January 28, 2022Date of Patent: December 13, 2022Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Yongtao Liang, Weiping Liu, Yanjun Zhi
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Patent number: 11511637Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes first, second, and third power converter stages connected to a transformer module. At least one of the first, second, and third power converter stages is a multi-level power converter stage that has multiple configurations to generate different output voltages from an input voltage.Type: GrantFiled: October 1, 2020Date of Patent: November 29, 2022Assignee: Huawei Digital Power Technologies Co., Ltd.Inventors: Huibin Zhu, Heping Dai, Yongtao Liang, Weiping Liu
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Publication number: 20220157516Abstract: This application provides a magnetic integrated device, a power conversion circuit, a charger, and an electric vehicle, and pertains to the field of power electronics technologies. The magnetic integrated device includes a magnetic core, a first transformer winding, and a second transformer winding, where the first transformer winding and the second transformer winding are separated and wound, and a first air gap is formed at separation. A magnetic line may pass through the first air gap to form leakage inductance, and the leakage inductance may be equivalent to resonant inductance in the power conversion circuit. Therefore, there is no need to separately dispose an inductor winding in the magnetic integrated device. This effectively reduces a volume and a weight of the magnetic integrated device. In addition, the power conversion circuit that uses the magnetic integrated device also has a relatively small volume and relatively high-power density.Type: ApplicationFiled: January 28, 2022Publication date: May 19, 2022Applicant: Huawei Digital Power Technologies Co., Ltd.Inventors: Yongtao Liang, Weiping Liu, Yanjun Zhi
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Publication number: 20220038025Abstract: A converter and a power supply system are disclosed, and relate to the power electronics field, to resolve a problem that a sampling circuit in an OBC circuit is relatively complex. The converter includes an alternating current unit, a switching unit, a conversion unit, a direct current unit, and a controller. The alternating current unit includes a U line, a V line, a W line, and an N line. The N line is connected to a ground of the controller, so that the controller can be directly connected to the U line, the V line, and the W line, to collect a voltage of the U line, a voltage of the V line, and a voltage of the W line. This simplifies the sampling circuit.Type: ApplicationFiled: September 21, 2021Publication date: February 3, 2022Inventors: Weiping LIU, Yongtao LIANG, Chen CHEN
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Publication number: 20210155103Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes a battery, a Direct Current (DC) bus connected to the battery, and a DC to DC converter connected to the battery in parallel with the DC bus. A Motor Control Unit (MCU) is connected between the DC to DC converter and an electric motor. An Alternating Current (AC) port is connected to the electric motor. Switches connect the DC bus and an output of the DC to DC converter in series as an input to the MCU in a drive mode and disconnect the DC bus from the MCU in a charge mode.Type: ApplicationFiled: June 24, 2020Publication date: May 27, 2021Applicant: Huawei Technologies Co., Ltd.Inventors: Huibin Zhu, Heping Dai, Yongtao Liang, Weiping Liu, Feng Su, Shaohua Wang
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Publication number: 20210122255Abstract: A power conversion module, a vehicle-mounted charger, and an electric vehicle may be used in the field of new energy vehicles. The power conversion module includes a power factor correction PFC module and a first direct current-direct current DC-DC converter. A first primary circuit of the first DC-DC converter has a first bridge arm, a second bridge arm, a third bridge arm, and a fourth bridge arm. A first switch is disposed between the first bridge arm and an inductor at an interface of the PFC module, and a second switch is disposed between the third bridge arm and another interface of the PFC module.Type: ApplicationFiled: December 31, 2020Publication date: April 29, 2021Inventors: Yongtao LIANG, Weiping LIU, Feng SU
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Publication number: 20210016672Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes first, second, and third power converter stages connected to a transformer module. At least one of the first, second, and third power converter stages is a multi-level power converter stage that has multiple configurations to generate different output voltages from an input voltage.Type: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Applicant: Huawei Technologies Co., Ltd.Inventors: Huibin Zhu, Heping Dai, Yongtao Liang, Weiping Liu
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Publication number: 20200412238Abstract: A power conversion system includes a first power conversion port including a three-level power factor correction device and a primary power conversion circuit, a second power conversion port including a three-level rectifier and a third power conversion port including a rectifier, the first power conversion port, the second power conversion port and the third power conversion port magnetically coupled to each other through a transformer.Type: ApplicationFiled: June 11, 2020Publication date: December 31, 2020Inventors: Huibin Zhu, Heping Dai, Liming Ye, Yongtao Liang, Weiping Liu
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Magnetic integrated device including multiple core columns and windings and power conversion circuit
Patent number: 10855190Abstract: A magnetic integrated device is disclosed, the device includes: a first magnetic core base and a second magnetic core base that are parallel and a first magnetic core column, a second magnetic core column, and a third magnetic core column that are located between the first magnetic core base and the second magnetic core base; and a first winding, a second winding, and a third winding are wound on the first magnetic core column, the second magnetic core column, and the third magnetic core column respectively in a same manner to form a closed magnetic flux loop, where the first winding, the second winding, and the third winding are separately used for connecting to a branch of a three-phase parallel circuit, and in all branches of the three-phase parallel circuit, values of currents are the same, and a difference between each two current phases is 120 degrees.Type: GrantFiled: December 7, 2018Date of Patent: December 1, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Heqian Yang, Changsheng Pei, Yongtao Liang -
Publication number: 20190109542Abstract: A magnetic integrated device is disclosed, the device includes: a first magnetic core base and a second magnetic core base that are parallel and a first magnetic core column, a second magnetic core column, and a third magnetic core column that are located between the first magnetic core base and the second magnetic core base; and a first winding, a second winding, and a third winding are wound on the first magnetic core column, the second magnetic core column, and the third magnetic core column respectively in a same manner to form a closed magnetic flux loop, where the first winding, the second winding, and the third winding are separately used for connecting to a branch of a three-phase parallel circuit, and in all branches of the three-phase parallel circuit, values of currents are the same, and a difference between each two current phases is 120 degrees.Type: ApplicationFiled: December 7, 2018Publication date: April 11, 2019Inventors: Heqian YANG, Changsheng PEI, Yongtao LIANG
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Patent number: 10186974Abstract: A magnetic integrated device is disclosed, the device includes: a first magnetic core base and a second magnetic core base that are parallel and a first magnetic core column, a second magnetic core column, and a third magnetic core column that are located between the first magnetic core base and the second magnetic core base; and a first winding, a second winding, and a third winding are wound on the first magnetic core column, the second magnetic core column, and the third magnetic core column respectively in a same manner to form a closed magnetic flux loop, where the first winding, the second winding, and the third winding are separately used for connecting to a branch of a three-phase parallel circuit, and in all branches of the three-phase parallel circuit, values of currents are the same, and a difference between each two current phases is 120 degrees.Type: GrantFiled: May 5, 2016Date of Patent: January 22, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Heqian Yang, Changsheng Pei, Yongtao Liang
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Publication number: 20160254756Abstract: A magnetic integrated device is disclosed, the device includes: a first magnetic core base and a second magnetic core base that are parallel and a first magnetic core column, a second magnetic core column, and a third magnetic core column that are located between the first magnetic core base and the second magnetic core base; and a first winding, a second winding, and a third winding are wound on the first magnetic core column, the second magnetic core column, and the third magnetic core column respectively in a same manner to form a closed magnetic flux loop, where the first winding, the second winding, and the third winding are separately used for connecting to a branch of a three-phase parallel circuit, and in all branches of the three-phase parallel circuit, values of currents are the same, and a difference between each two current phases is 120 degrees.Type: ApplicationFiled: May 5, 2016Publication date: September 1, 2016Inventors: Heqian Yang, Changsheng Pei, Yongtao Liang
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Publication number: 20150180350Abstract: The present invention provides a resonant bidirectional converter, an uninterruptible power supply apparatus, and a control method. The resonant bidirectional converter includes: a filter capacitor, three primary side bridge arms, a resonant cavity, three transformers, and three secondary side bridge arms, where two ends of each of the primary side bridge arms are separately connected to two ends of a bus capacitor, each of the primary side bridge arms includes two semiconductor switch that are serially connected in a same direction, and any connection point located between the two semiconductor switch of the primary side bridge arm that are serially connected in the same direction is a first connection point.Type: ApplicationFiled: December 18, 2014Publication date: June 25, 2015Inventors: Boning HUANG, Yongtao LIANG, Wenbin CHEN, Denghai PAN
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Patent number: 8730515Abstract: A printing control program is disclosed which causes a computer to function as a calculating unit; a page data generating unit which generates page data for outputting unused tab sheets; a job data generating unit which generates one job data set into which a first data job set and a second data set are combined, the first job data set being for outputting a printed output to a first sheet-discharging destination based on manuscript submission data and the second job data set being for outputting the unused tab sheet to a second sheet-discharging destination based on the page data; and a job data transmitting unit which transmits the one job data set to a job management unit which causes information on job data to be displayed on a display apparatus.Type: GrantFiled: January 26, 2012Date of Patent: May 20, 2014Assignee: Ricoh Company, Ltd.Inventors: Takashi Toriumi, Akihiro Kinoshita, Yoshikazu Tanaka, Shizhong Zhu, Yongtao Liang
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Publication number: 20120194834Abstract: A printing control program is disclosed which causes a computer to function as a calculating unit; a page data generating unit which generates page data for outputting unused tab sheets; a job data generating unit which generates one job data set into which a first data job set and a second data set are combined, the first job data set being for outputting a printed output to a first sheet-discharging destination based on manuscript submission data and the second job data set being for outputting the unused tab sheet to a second sheet-discharging destination based on the page data; and a job data transmitting unit which transmits the one job data set to a job management unit which causes information on job data to be displayed on a display apparatus.Type: ApplicationFiled: January 26, 2012Publication date: August 2, 2012Applicant: RICOH COMPANY, LTD.Inventors: Takashi Toriumi, Akihiro Kinoshita, Yoshikazu Tanaka, Shizhong Zhu, Yongtao Liang