公开(公告)号：US20170019023A1

公开(公告)日：2017-01-19

申请号：US14801513

申请日：2015-07-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Reza SHARIFI ,  Kevin SCOONES ,  Orlando LAZARO

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M1/14 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A voltage converter includes a high side transistor, a low side transistor coupled to the high side transistor at a switching node, and an inductor coupled to the switching node and providing an output node. A controller is provided that is coupled to the high side transistor and the low side transistor. The controller is configured to selectively turn on and off the high and low side transistors in a repeat cycle. The controller is configured to control the high and low side transistors to cause a sequence of packets of charge to be delivered to the inductor. Also included is an adaptive timer circuit coupled to the output node and the controller and configured to adaptively adjust the amount of charge in each packet based on the voltage ripple of the output node.

Abstract translation: 电压转换器包括高侧晶体管，耦合到开关节点处的高侧晶体管的低侧晶体管，以及耦合到开关节点并提供输出节点的电感器。 提供了耦合到高侧晶体管和低侧晶体管的控制器。 控制器被配置为在重复循环中选择性地打开和关闭高侧和低侧晶体管。 控制器被配置为控制高侧和低侧晶体管以使电荷分组的序列被传递到电感器。 还包括耦合到输出节点和控制器并且被配置为基于输出节点的电压纹波自适应地调整每个分组中的电荷量的自适应定时器电路。

公开(公告)号：US20230353042A1

公开(公告)日：2023-11-02

申请号：US18306797

申请日：2023-04-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Orlando LAZARO

IPC: H02M1/34 ,  H02M3/158

CPC classification number: H02M1/344 ,  H02M3/158

Abstract: Examples of this description include providing a first control signal having an asserted value at a first control terminal of a controllable resistive element at a first time. Examples of this description also include providing a second control signal having an asserted value at a control terminal of a high-side power transistor of a power converter subsequent to providing the first control signal, wherein the controllable resistive element snubs the high-side power transistor.

公开(公告)号：US20210036524A1

公开(公告)日：2021-02-04

申请号：US16528248

申请日：2019-07-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Austin WOMAC ,  Eric SOUTHARD ,  Orlando LAZARO

IPC: H02J7/00 ,  H02M7/48

Abstract: Aspects of the disclosure include a including a first sense transistor having a gate and a drain configured to couple in parallel with a high-side transistor and a source terminal coupled to a first node, and a second sense transistor having a gate and a drain configured to couple in parallel with a low-side transistor, and a source terminal coupled to a third node. The circuit further includes a first comparator circuit having a first input coupled to the first node, a second input coupled to a second node, and an output, a second comparator circuit having a first input coupled to the third node, a second input coupled to a ground node, and an output, and a logic circuit having first input coupled to the output of the first comparator circuit, a second input coupled to the output of the second comparator circuit, and an output.

公开(公告)号：US20170271910A1

公开(公告)日：2017-09-21

申请号：US15070472

申请日：2016-03-15

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Orlando LAZARO ,  Leonardo ESTEVEZ

IPC: H02J7/34 ,  H04W4/00 ,  H04W72/04

Abstract: An energy harvesting sensor node includes an energy harvesting sensor, an energy storage device, and a transceiver. The energy harvesting sensor is configured to extract energy from an external source at a rate proportional to a value of a first parameter of the external source. The energy storage device is configured to store the extracted energy from the energy harvesting sensor at the rate proportional to the value of the first parameter. The transceiver is configured to transmit a plurality of data transmission frames at a frequency proportional to the value of the first parameter.

公开(公告)号：US20240146254A1

公开(公告)日：2024-05-02

申请号：US18050338

申请日：2022-10-27

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ankur CHAUHAN ,  Orlando LAZARO ,  Kushal MURTHY ,  Andres BLANCO ,  Henry EDWARDS

IPC: H03F1/30 ,  H01L27/02

CPC classification number: H03F1/308 ,  H01L27/0211

Abstract: A power transistor includes an ambient temperature input, a local temperature sensor, an array of transistor cells, and a thermal feedback circuit. The ambient temperature input is configured to receive an ambient temperature signal that is representative of an ambient temperature of the power transistor. The array of transistor cells has a control input. The local temperature sensor is configured to provide a local temperature signal that is representative of a temperature of the array of transistor cells. The thermal feedback circuit is coupled to the ambient temperature input, the local temperature sensor, and the control input. The thermal feedback circuit is configured to modulate a control signal provided at the control input based on a difference between the ambient temperature signal and the local temperature signal.

公开(公告)号：US20220140786A1

公开(公告)日：2022-05-05

申请号：US17087356

申请日：2020-11-02

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Orlando LAZARO

IPC: H03B5/12 ,  H02J50/10

Abstract: A system includes a power receiver including an oscillator with a first coil and a second coil. The oscillator includes a first field effect transistor (FET) having first gate, first source, and first drain terminals, the first drain terminal coupled to the first coil, the first coil adapted to be inductively coupled to a third coil in a power transmitter. The oscillator also includes a first capacitor coupled to the first coil. The oscillator includes a second FET having second gate, second source, and second drain terminals, the second gate terminal coupled to the first capacitor, the second source terminal coupled to the first source terminal, and the second drain terminal coupled to the second coil, the second coil adapted to be inductively coupled to a fourth coil in the power transmitter. The oscillator includes a second capacitor coupled to the first gate terminal and coupled to the second coil.