公开(公告)号：US11314300B2

公开(公告)日：2022-04-26

申请号：US16542037

申请日：2019-08-15

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: G06F1/00 ,  G06F1/26 ,  G06F13/42

Abstract: A circuit includes a controller to communicate with a sink device and communicate a plurality of power sources that are available to the sink device. A plurality of switch devices switch power from one of the plurality of power sources to the sink device in response to a control signal from the controller. A policy engine in the controller defines policies for the operation of the controller during different communications phases between the controller and the sink device.

公开(公告)号：US11101736B2

公开(公告)日：2021-08-24

申请号：US16597385

申请日：2019-10-09

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: H02M3/335 ,  H02J13/00 ,  G06F1/26 ,  H02M1/00 ,  H02J7/00

Abstract: A system may include a power supply configurable to generate any of a plurality of output voltages on a power supply output node. The system also may include a voltage auto-detection power distribution (PD) controller coupled to the power supply. The voltage auto-detection PD controller is configured to monitor an input signal for detection of presence of a device coupled to the system via a cable and assert combinations of a plurality of control signals. For each combination of control signals, the voltage auto-detection PD controller measures a value of an output voltage from the power supply, stores the measured value, and generates a plurality of packets for transmission to the device. Each packet contains a parameter indicative of a measured output voltage.

公开(公告)号：US10990150B2

公开(公告)日：2021-04-27

申请号：US16044250

申请日：2018-07-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Deric Wayne Waters

IPC: G06F1/26 ,  G06F1/3215 ,  H01R24/60 ,  G06F13/40 ,  G06F1/3296

Abstract: A circuit comprising a first processing element having a first output configured to couple to a voltage control circuit, a second output configured to couple to a gate terminal of a first transistor, and a third output configured to couple to a first node and a control circuit. The control circuit comprises a second processing element having multiple outputs, a second transistor having a gate terminal configured to couple to one of the outputs of the second processing element, a first terminal configured to couple to a second node and to a drain terminal of the first transistor, and a second terminal, and a third transistor having a gate terminal configured to couple to a second of the outputs of the second processing element, a first terminal configured to couple to a third node, and a second terminal.

公开(公告)号：US20210055783A1

公开(公告)日：2021-02-25

申请号：US17093677

申请日：2020-11-10

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Roy Alan hastings

IPC: G06F1/3296 ,  H03H7/06 ,  G06F1/28 ,  H03K5/24 ,  H02J1/00 ,  G06F1/3206

Abstract: In one embodiment, a system includes a power delivery (“PD”) controller in a USB Type-C system that includes a configuration channel (“CC”), PD preamble detector, and a power-usage circuit. The PD controller includes a CC input that receives a PD message. The PD preamble detector is configured to detect a PD message preamble based in part upon a power of a filtered PD message and communicates a wake-up signal to the power-usage circuit in response to detecting a PD message preamble. The power-usage circuit is configured to exit a low-power mode in response to receiving the wake-up signal.

公开(公告)号：US10692674B2

公开(公告)日：2020-06-23

申请号：US15350609

申请日：2016-11-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Deric Wayne Waters

IPC: H01H47/00 ,  G06F1/26 ,  G01R19/165 ,  G01R31/40 ,  H01R24/28 ,  H01R24/60 ,  H02J7/00 ,  H01R107/00

Abstract: At least some embodiments are directed to an electronic device port system comprising a first device configured to negotiate power supply contracts from a power source via a universal serial bus (USB) cable. The system also comprises a second device configured to negotiate power supply contracts from the power source via the USB cable when the first device is unable to negotiate power supply contracts from the power source. The second device is configured to activate a switch after the second device negotiates a power supply contract with the power source. The switch is configured to permit the provision of power from the power source to a battery system of the electronic device per the negotiated power supply contract.

公开(公告)号：US20190310700A1

公开(公告)日：2019-10-10

申请号：US15949841

申请日：2018-04-10

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Deric Wayne Waters ,  Roy Alan Hastings

IPC: G06F1/32 ,  H03H7/06 ,  H03K5/24 ,  H02J1/00 ,  G06F1/28

Abstract: In one embodiment, a system includes a power delivery (“PD”) controller in a USB Type-C system that includes a configuration channel (“CC”), PD preamble detector, and a power-usage circuit. The PD controller includes a CC input that receives a PD message. The PD preamble detector is configured to detect a PD message preamble based in part upon a power of a filtered PD message and communicates a wake-up signal to the power-usage circuit in response to detecting a PD message preamble. The power-usage circuit is configured to exit a low-power mode in response to receiving the wake-up signal.

公开(公告)号：US10312936B2

公开(公告)日：2019-06-04

申请号：US14587433

申请日：2014-12-31

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: H03M13/09 ,  H03M13/00 ,  H04L1/00 ,  H03M13/37 ,  H04L1/24 ,  G06F11/10

Abstract: Methods and apparatus for operating a communication system comprising three or more communication transceivers. In illustrative embodiments, multiple different cyclic redundancy check (CRC) generation schemes are maintained. Each CRC generation scheme corresponds to a unique CRC residual value. A CRC value generated using one of the CRC generation schemes is placed in a data packet to be transmitted. The chosen CRC generation scheme reflects which one or more transceivers are intended recipients of the data packet. When a data packet is received by a transceiver, a CRC residual value is calculated based on the CRC value contained in the received data packet. The calculated CRC residual value is compared against a list of one or more valid CRC residual values for that particular transceiver. If the calculated CRC value matches one of the listed valid CRC residual values, the data packet is accepted, otherwise it is rejected.

公开(公告)号：US09824045B2

公开(公告)日：2017-11-21

申请号：US14690806

申请日：2015-04-20

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: G06F13/362 ,  G06F13/40 ,  G06F13/42 ,  G06F1/26

CPC classification number: G06F13/362 ,  G06F1/266 ,  G06F13/4068 ,  G06F13/4282

Abstract: Described examples include USB controllers and methods of interfacing a host processor with one or more USB ports with the host processor implementing an upper protocol layer and a policy engine for negotiating USB power delivery parameters, in which the USB controller includes a logic circuit implementing a lower protocol layer to provide automatic outgoing data transmission retries independent of the upper protocol layer of the host processor. The controller logic circuit further implements automatic incoming data packet validity verification and acknowledgment independent of the upper protocol layer of the host processor.

公开(公告)号：US09740261B2

公开(公告)日：2017-08-22

申请号：US14841119

申请日：2015-08-31

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Roy Alan Hastings

IPC: G06F1/30 ,  G06F1/32 ,  G06F1/26

CPC classification number: G06F1/30 ,  G06F1/266 ,  G06F1/3293

Abstract: A method of power delivery. Port controllers each include a state machine, an IO pin, a receptacle supply pin receiving power from a receptacle, and a gate driver pin coupled to a control node of a power path switch each having an output coupled to a load. The state machines implement a dead-battery control (DBC) algorithm upon sensing a DB condition. The DBC algorithm pulls up the IO pin, starts a timer for T1, and monitors the IO pin for T1. If the IO pin is pulled low, the port controller is reset for a pulled low period, the DBC algorithm is then restarted or its IO pin is monitored until not pulled low for T1. One port controller pulls its IO pin low for an assertion period to claim priority over the other port controller, and closes its associated power path switch to exclusively provide power to the load.

公开(公告)号：US09719786B2

公开(公告)日：2017-08-01

申请号：US14711820

申请日：2015-05-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sandeep Rao ,  Deric Wayne Waters

IPC: G01C21/16 ,  G01C17/38 ,  G01C21/00 ,  G01C21/06 ,  G01C21/26

CPC classification number: G01C21/18 ,  G01C17/38 ,  G01C19/42 ,  G01C21/005 ,  G01C21/06 ,  G01C21/16 ,  G01C21/26

Abstract: An automobile has a system for navigating using a vehicle speed sensor reading rotation data from a wheel and a gyroscopic sensor. For each of a plurality of error parameter values, a distance traveled for each of a plurality of directions of travel. The system also includes selecting the error parameter value that maximizes the distance traveled in one or more of the directions of travel, applying the selected error parameter value to data from the gyroscopic sensor, and navigating using dead reckoning based on data from the vehicle speed sensor and data from the gyroscopic sensor with the applied error parameter value.