Patents by Inventor Cicero DA SILVEIRA POSTIGLIONE
Cicero DA SILVEIRA POSTIGLIONE 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: 11437927Abstract: A voltage source converter is configured to generate a pulse train using two voltage levels. The voltage source converter includes a first converter arm coupled between a junction and a first DC terminal having a first voltage level and a second converter arm coupled between the junction and a second DC terminal having a second voltage level. At least one of the first and second converter arms comprises cells. A string of capacitors is coupled between the first and second DC terminals. A control unit is configured to control a group of cells used in a transition between the first and second voltage levels for commutating a current running through a corresponding one of the first and second converter arms involved in the transition.Type: GrantFiled: September 13, 2018Date of Patent: September 6, 2022Assignee: Hitachi Energy Switzerland AGInventors: Nan Chen, Federico Bertoldi, Kalle Ilves, Cicero Da Silveira Postiglione
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Publication number: 20210328523Abstract: A voltage source converter is configured to generate a pulse train using two voltage levels. The voltage source converter includes a first converter arm coupled between a junction and a first DC terminal having a first voltage level and a second converter arm coupled between the junction and a second DC terminal having a second voltage level. At least one of the first and second converter arms comprises cells. A string of capacitors is coupled between the first and second DC terminals. A control unit is configured to control a group of cells used in a transition between the first and second voltage levels for commutating a current running through a corresponding one of the first and second converter arms involved in the transition.Type: ApplicationFiled: September 13, 2018Publication date: October 21, 2021Inventors: Nan Chen, Federico Bertoldi, Kalle Ilves, Cicero Da Silveira Postiglione
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Patent number: 10715050Abstract: A switching circuit includes a first half-bridge circuit, a second half-bridge circuit and a voltage divider circuit connected in parallel with each other and a DC input power (VDC). The first half-bridge circuit includes a first pair of series connected switches and the second half-bridge circuit includes a second pair of series connected switches.Type: GrantFiled: March 7, 2018Date of Patent: July 14, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Grover Victor Torrico-Bascopé, Cicero Da Silveira Postiglione
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Patent number: 10305366Abstract: The disclosure relates to a controller for a power converter, the power converter comprising a first switch and a second switch, wherein the controller is configured to receive a first control signal based on a first drain-to-source voltage of the first switch; receive a second control signal based on a second drain-to-source voltage of the second switch; derive a first switch control signal based on the first control signal and control the first switch by providing the first switch control signal to the first switch; derive a second switch control signal based on the second control signal and control the second switch by providing the second switch control signal to the second switch; wherein the first switch control signal and the second switch control signal each comprises turn-on edges and turn-off edges. Furthermore, disclosure also relates to corresponding methods, a non-transitory computer readable medium.Type: GrantFiled: October 2, 2018Date of Patent: May 28, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Jun Ma, Cicero Da Silveira Postiglione, Grover Victor Torrico-Bascopé
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Publication number: 20190131880Abstract: The present invention relates to a bi-directional DC-DC converter comprising: a first terminal, a second terminal, a transformer circuit, a first high voltage side coupled to said first terminal, and a second low voltage side coupled to said second terminal; wherein said first high voltage side and said second low voltage side are coupled to each other by means of said transformer circuit, and said first high voltage side comprises a resonant tank circuit coupled between a first bridge circuit of said first high voltage side and a high voltage side of said transformer circuit. Furthermore, the invention also relates to a system comprising at least two such bi-directional DC-DC converters.Type: ApplicationFiled: December 27, 2018Publication date: May 2, 2019Inventors: Grover Victor TORRICO-BASCOPÉ, Fernando RUIZ GOMEZ, Cicero DA SILVEIRA POSTIGLIONE
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Publication number: 20190036440Abstract: The disclosure relates to a controller for a power converter, the power converter comprising a first switch and a second switch, wherein the controller is configured to receive a first control signal based on a first drain-to-source voltage of the first switch; receive a second control signal based on a second drain-to-source voltage of the second switch; derive a first switch control signal based on the first control signal and control the first switch by providing the first switch control signal to the first switch; derive a second switch control signal based on the second control signal and control the second switch by providing the second switch control signal to the second switch; wherein the first switch control signal and the second switch control signal each comprises turn-on edges and turn-off edges. Furthermore, disclosure also relates to corresponding methods, a non-transitory computer readable medium.Type: ApplicationFiled: October 2, 2018Publication date: January 31, 2019Inventors: Jun MA, Cicero DA SILVEIRA POSTIGLIONE, Grover Victor TORRICO-BASCOPÉ
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Patent number: 10193459Abstract: The present invention relates to a bi-directional DC-DC converter comprising: a first terminal, a second terminal, a transformer circuit, a first high voltage side coupled to said first terminal, and a second low voltage side coupled to said second terminal; wherein said first high voltage side and said second low voltage side are coupled to each other by means of said transformer circuit, and said first high voltage side comprises a resonant tank circuit coupled between a first bridge circuit of said first high voltage side and a high voltage side of said transformer circuit. Furthermore, the invention also relates to a system comprising at least two such bi-directional DC-DC converters.Type: GrantFiled: December 1, 2017Date of Patent: January 29, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Grover Victor Torrico-Bascopé, Fernando Ruiz Gomez, Cicero Da Silveira Postiglione
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Publication number: 20180198373Abstract: A switching circuit includes a first half-bridge circuit, a second half-bridge circuit and a voltage divider circuit connected in parallel with each other and a DC input power (VDC). The first half-bridge circuit includes a first pair of series connected switches and the second half-bridge circuit comprises a second pair of series connected switches.Type: ApplicationFiled: March 7, 2018Publication date: July 12, 2018Inventors: Grover Victor TORRICO-BASCOPÉ, Cicero DA SILVEIRA POSTIGLIONE
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Publication number: 20180102712Abstract: The present invention relates to a bi-directional DC-DC converter comprising: a first terminal, a second terminal, a transformer circuit, a first high voltage side coupled to said first terminal, and a second low voltage side coupled to said second terminal; wherein said first high voltage side and said second low voltage side are coupled to each other by means of said transformer circuit, and said first high voltage side comprises a resonant tank circuit coupled between a first bridge circuit of said first high voltage side and a high voltage side of said transformer circuit. Furthermore, the invention also relates to a system comprising at least two such bi-directional DC-DC converters.Type: ApplicationFiled: December 1, 2017Publication date: April 12, 2018Inventors: Grover Victor TORRICO-BASCOPÉ, Fernando RUIZ GOMEZ, Cicero DA SILVEIRA POSTIGLIONE
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Patent number: 9876434Abstract: The present invention relates to a bi-directional DC-DC converter comprising: a first terminal, a second terminal, a transformer circuit, a first high voltage side coupled to said first terminal, and a second low voltage side coupled to said second terminal; wherein said first high voltage side and said second low voltage side are coupled to each other by means of said transformer circuit, and said first high voltage side comprises a resonant tank circuit coupled between a first bridge circuit of said first high voltage side and a high voltage side of said transformer circuit. Furthermore, the invention also relates to a system comprising at least two such bi-directional DC-DC converters.Type: GrantFiled: August 29, 2016Date of Patent: January 23, 2018Assignee: Huawei Technologies Co., Ltd.Inventors: Grover Victor Torrico-Bascopé, Fernando Ruiz Gomez, Cicero Da Silveira Postiglione
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Publication number: 20160365803Abstract: The present invention relates to a bi-directional DC-DC converter comprising: a first terminal, a second terminal, a transformer circuit, a first high voltage side coupled to said first terminal, and a second low voltage side coupled to said second terminal; wherein said first high voltage side and said second low voltage side are coupled to each other by means of said transformer circuit, and said first high voltage side comprises a resonant tank circuit coupled between a first bridge circuit of said first high voltage side and a high voltage side of said transformer circuit. Furthermore, the invention also relates to a system comprising at least two such bi-directional DC-DC converters.Type: ApplicationFiled: August 29, 2016Publication date: December 15, 2016Inventors: Grover Victor TORRICO-BASCOPÉ, Fernando RUIZ GOMEZ, Cicero DA SILVEIRA POSTIGLIONE