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公开(公告)号：US20190386575A1
公开(公告)日：2019-12-19
申请号：US16554095
申请日：2019-08-28
Applicant: Texas Instruments Incorporated
Inventor： Mustapha El Markhi , Erhan Ozalevli , Tuli Dake , Dingkun Du , Gianpaolo Lisi , Jingwei Xu
IPC: H02M3/335
Abstract: A wireless power transfer system using a resonant rectifier circuit with capacitor sensing. A wireless power transfer system includes a power receiver resonant circuit and a synchronous rectifier. The power receiver resonant circuit includes an inductor and a capacitor connected in series with the inductor. The synchronous rectifier is configured to identify zero crossings of alternating current flowing through the inductor based on voltage across the capacitor, and control synchronous rectification of the alternating current based on timing of the zero crossings.
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公开(公告)号：US10439502B2
公开(公告)日：2019-10-08
申请号：US15279094
申请日：2016-09-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Mustapha El Markhi , Erhan Ozalevli , Tuli Dake , Dingkun Du , Gianpaolo Lisi , Jingwei Xu
Abstract: A wireless power transfer system using a resonant rectifier circuit with capacitor sensing. A wireless power transfer system includes a power receiver resonant circuit and a synchronous rectifier. The power receiver resonant circuit includes an inductor and a capacitor connected in series with the inductor. The synchronous rectifier is configured to identify zero crossings of alternating current flowing through the inductor based on voltage across the capacitor, and control synchronous rectification of the alternating current based on timing of the zero crossings.
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公开(公告)号：US10320448B2
公开(公告)日：2019-06-11
申请号：US15850572
申请日：2017-12-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Rajaram Subramonian , Gianpaolo Lisi , Swaminathan Sankaran , Bradley Allen Kramer , Gerard Socci
IPC: H04B5/00
Abstract: In described examples, an inductive structure includes first and second inductive coils to conduct respective first and second common mode currents induced by a common mode transient between: a first ground coupled to a connection between the first and second inductive coils; and a galvanically isolated second ground.
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公开(公告)号：US20190109493A1
公开(公告)日：2019-04-11
申请号：US16214733
申请日：2018-12-10
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kosha Mahmodieh , Gianpaolo Lisi , Ali Djabbari , Jingwei Xu , Vijayalakshmi Devarajan
Abstract: An example apparatus includes a feedback loop to: change a direction value when a second current value is greater than a first current value, the second current value being obtained after the first current value; and maintain the direction value when the second current value is less than the first current value. When the direction value corresponds to a first direction value, a summer increases a reference signal by a step size. When the direction value corresponds to a second direction value different than the first direction value, the summer decrease the reference signal by the step size.
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公开(公告)号：US09733061B2
公开(公告)日：2017-08-15
申请号：US14811934
申请日：2015-07-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Gianpaolo Lisi
CPC classification number: G01B7/023 , G01D5/12 , G01D5/2066
Abstract: A distance measurement system includes a tank circuit including a transmit coil coupled to a transmit capacitor, a distance calculation circuit coupled to the transmit coil, and a target resonant circuit including a receive coil coupled to a receive capacitor. The receive coil is to receive a magnetic field generated by the tank circuit. The distance calculation circuit is to determine a reflected admittance. The reflected admittance includes a real component and an imaginary component. The distance calculation circuit is to determine a distance between the transmit and receive coils based on the imaginary component of the reflected admittance.
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Patent Agency Ranking
公开(公告)号：US09491838B2
公开(公告)日：2016-11-08
申请号：US13690235
申请日：2012-11-30
Applicant: Texas Instruments Incorporated
Inventor： Giovanni Frattini , Evan Reutzel , Jeffrey Morroni , Ali Djabbari , Gerard Socci , Gianpaolo Lisi , Raj Subramoniam , Kosha Mahmodieh
CPC classification number: H05B37/036 , H05B33/083 , H05B33/0842 , H05B37/02
Abstract: Circuits for controlling a plurality of LEDs connected in series are disclosed herein. The circuit includes a plurality of switches, wherein each switch is connectable between the anode and cathode of one of the plurality of LEDs. Each of the switches has a first state wherein current does not pass through the switch and a second state wherein current passes through the switch. The circuit also includes an input for receiving data to program the switches and a data line for transferring data between a circuit controlling second LEDs that are connected in parallel with the first LEDs and the circuit. In addition, the circuit includes a data output for transferring data to other circuits controlling third LEDs that are connected in series with the first LEDs.
Abstract translation: 本文公开了用于控制串联连接的多个LED的电路。 电路包括多个开关，其中每个开关可在多个LED之一的阳极和阴极之间连接。 每个开关具有其中电流不通过开关的第一状态和电流通过开关的第二状态。 电路还包括用于接收数据以编程开关的输入端和用于在控制与第一LED和电路并联连接的第二LED的电路之间传送数据的数据线。 此外，电路包括用于将数据传送到控制与第一LED串联连接的第三LED的其他电路的数据输出。
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公开(公告)号：US20150004904A1
公开(公告)日：2015-01-01
申请号：US14026515
申请日：2013-09-13
Applicant: Texas Instruments Incorporated
Inventor： Gianpaolo Lisi , Gerard Socci , Ali Djabbari , Rajaram Subramoniam
IPC: H04B5/00
CPC classification number: H04B5/0087 , H04B5/0031 , H04B5/0037
Abstract: An inductive structure includes a power coil and a data coil. The data coil is substantially centered within the power coil. A first portion of the data coil conducts current in a first direction. A second portion of the data coil conducts current in a second direction opposite the first direction. The first portion of the data coil is connected at a node to the second portion of the data coil. The node is coupled to a ground.
Abstract translation: 电感结构包括电源线圈和数据线圈。 数据线圈基本上位于功率线圈的中心。 数据线圈的第一部分沿第一方向传导电流。 数据线圈的第二部分在与第一方向相反的第二方向上传导电流。 数据线圈的第一部分在节点处连接到数据线圈的第二部分。 节点耦合到地面。
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公开(公告)号：US20130193852A1
公开(公告)日：2013-08-01
申请号：US13690235
申请日：2012-11-30
Applicant: Texas Instruments Incorporated
Inventor： Giovanni Frattini , Evan Reutzel , Jeffrey Morroni , Ali Djabbari , Gerard Socci , Gianpaolo Lisi , Raj Subramoniam , Kosha Mahmodieh
CPC classification number: H05B37/036 , H05B33/083 , H05B33/0842 , H05B37/02
Abstract: Circuits for controlling a plurality of LEDs connected in series are disclosed herein. The circuit includes a plurality of switches, wherein each switch is connectable between the anode and cathode of one of the plurality of LEDs. Each of the switches has a first state wherein current does not pass through the switch and a second state wherein current passes through the switch. The circuit also includes an input for receiving data to program the switches and a data line for transferring data between a circuit controlling second LEDs that are connected in parallel with the first LEDs and the circuit. In addition, the circuit includes a data output for transferring data to other circuits controlling third LEDs that are connected in series with the first LEDs.
Abstract translation: 本文公开了用于控制串联连接的多个LED的电路。 电路包括多个开关，其中每个开关可在多个LED之一的阳极和阴极之间连接。 每个开关具有其中电流不通过开关的第一状态和电流通过开关的第二状态。 电路还包括用于接收数据以编程开关的输入端和用于在控制与第一LED和电路并联连接的第二LED的电路之间传送数据的数据线。 此外，电路包括用于将数据传送到控制与第一LED串联连接的第三LED的其他电路的数据输出。
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公开(公告)号：US10153661B2
公开(公告)日：2018-12-11
申请号：US15362563
申请日：2016-11-28
Applicant: Texas Instruments Incorporated
Inventor： Kosha Mahmodieh , Gianpaolo Lisi , Ali Djabbari , Jingwei Xu , Vijayalakshmi Devarajan
Abstract: Methods, apparatus, systems and articles of manufacture to efficiently transfer power wirelessly are disclosed. An example apparatus includes a feedback loop to when a second current value is greater than a first current value, change a direction value, the second current value being obtained after the first current value; when the second current value is less than the first current value, maintain the direction value; and a summer to when the direction value corresponds to a first direction value, increase a reference signal by a step size; and when the direction value corresponds to a second direction value different than the first direction value, decrease the reference signal by the step size.
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公开(公告)号：US20180115346A1
公开(公告)日：2018-04-26
申请号：US15850572
申请日：2017-12-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Rajaram Subramonian , Gianpaolo Lisi , Swaminathan Sankaran , Bradley Allen Kramer , Gerard Socci
IPC: H04B5/00
CPC classification number: H04B5/0087 , H04B5/0031 , H04B5/0037
Abstract: In described examples, an inductive structure includes first and second inductive coils to conduct respective first and second common mode currents induced by a common mode transient between: a first ground coupled to a connection between the first and second inductive coils; and a galvanically isolated second ground.
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