公开(公告)号：US20240053171A1

公开(公告)日：2024-02-15

申请号：US18446608

申请日：2023-08-09

Applicant: Renesas Electronics America Inc.

Inventor： Bence GOMBOR ,  Gentjan QAMA ,  Rudolf PICHLER

IPC: G01D5/20

CPC classification number: G01D5/2053

Abstract: An inductive sensor assembly including a printed circuit board (PCB) arrangement including at least one layer-stacked PCB, a sensor chip component element, a coil system comprising one or more sensor coils corresponding to the sensor chip component element, wherein the sensor chip component element and the coil system are arranged on opposite sides of the PCB arrangement.

公开(公告)号：US11855800B1

公开(公告)日：2023-12-26

申请号：US17902139

申请日：2022-09-02

Applicant: Renesas Electronics America Inc.

Inventor： Leonid Goldin ,  Greg Anton Armstrong

IPC: H04B1/69 ,  H04B1/707 ,  H04B1/713 ,  H04L12/40 ,  H04L7/06

CPC classification number: H04L12/40013 ,  H04L7/06

Abstract: Methods and system for one-line synchronous interface are described. A timing device including a first buffer can be connected to a line card including a second buffer. The timing device can control the first buffer to output a synchronization pulse to the line card periodically at a time interval. For each output of the synchronization pulse, the timing device can switch the first buffer from a first output mode to a first input mode. Under the first input mode, the timing device listen for incoming data on the trace. The line card can receive the synchronization pulse periodically at the time interval. For each receipt of the synchronization pulse, the line card can switch the second buffer from a second input mode to a second output mode. Under the second output mode, the line card can transmit outgoing data on the trace.

公开(公告)号：US20230388174A1

公开(公告)日：2023-11-30

申请号：US18320570

申请日：2023-05-19

Applicant: Renesas Electronics America Inc.

Inventor： Damla Solmaz ACAR ,  Mihail JEFREMOW ,  Jure MENART ,  Pooja AGRAWAL ,  Amit BAVISI ,  Gustavo James MEHAS

IPC: H04L27/36 ,  H04B5/00

CPC classification number: H04L27/365 ,  H04B5/0037 ,  H04B5/0075

Abstract: Systems and methods for demodulating a signal is described. A device can receive a modulated signal that encodes data. The device can sample a voltage of the modulated signal to generate a plurality of samples in digital domain. The device can determine in-phase data and quadrature data of the plurality of samples. The device can determine amplitude data and phase data based on the in-phase data and the quadrature data. The device can decode the amplitude data and phase data into digital symbols that represent the data encoded in the modulated signal.

公开(公告)号：US20230366947A1

公开(公告)日：2023-11-16

申请号：US17742505

申请日：2022-05-12

Applicant: Renesas Electronics America Inc.

Inventor： Thomas Patrick HARVEY

IPC: G01R31/396 ,  H02J7/00 ,  G01R31/3835

CPC classification number: G01R31/396 ,  G01R31/3835 ,  H02J7/00032 ,  H02J7/0047

Abstract: In an embodiment, an apparatus is disclosed that includes a first battery management circuit. The first battery management circuit is configured to measure a voltage of a first battery cell of a battery pack and to generate a first voltage measurement based at least in part on the measured voltage of the first battery cell. The first battery management circuit is configured to receive a bit of a first response from a second battery management circuit. The bit of the first response is generated by the second battery management circuit based at least in part on a measured voltage of a second battery cell of the battery pack. The first battery management circuit is configured to sum the bit of the first response with a corresponding bit of the first voltage measurement and to provide the summed bit to a third battery management circuit as part of a second response.

公开(公告)号：US11817785B2

公开(公告)日：2023-11-14

申请号：US17084070

申请日：2020-10-29

Applicant: Renesas Electronics America Inc.

Inventor： Vipul Raithatha ,  Rob Cox ,  Allan Warrington ,  Vinod Aravindakshan Lalithambika ,  Michael Jason Houston

IPC: H02M3/158 ,  H02M3/157 ,  H02M1/00

CPC classification number: H02M3/1582 ,  H02M3/157 ,  H02M1/0025

Abstract: DAC control logic for controlling a DAC for supplying a target voltage VTARGET to a switching converter is disclosed. The DAC logic comprises control logic which is configured, in response to DAC ramp-down, to decrement DAC input code supplied to the DAC in a series of steps. The DAC control logic is configured, for at least some of the steps during ramp down, to wait until at least one switching cycle has occurred in the switching converter before decrementing the DAC input code from a current value to a new value.

公开(公告)号：US11804737B2

公开(公告)日：2023-10-31

申请号：US17241400

申请日：2021-04-27

Applicant: Renesas Electronics America Inc.

Inventor： Gustavo Mehas ,  Laurence McGarry

IPC: H02J50/90 ,  H02J50/40 ,  H02J50/10

CPC classification number: H02J50/90 ,  H02J50/10 ,  H02J50/402 ,  H02J2310/22

Abstract: According to some embodiments, a wireless power transmitter is presented. In some embodiments, a wireless power transmitter includes a charging table; a plurality of movable transmitter coils incorporated into the charging table; and a control circuit coupled to sensors in the charging table and to the plurality of movable coils. In some embodiments, the control circuit is configured to detect a device placed on the charging table, determine a position of the device, move at least one of the plurality of movable transmitter coils to engage the device, communicate with the device to determine device characteristics, further configure the plurality of movable coils to engage with the device, and engage the device according to the device characteristics.

公开(公告)号：US11770157B2

公开(公告)日：2023-09-26

申请号：US17680794

申请日：2022-02-25

Applicant: Renesas Electronics America Inc.

Inventor： Gustavo James Mehas ,  Giovanni Figliozzi

IPC: H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H04B5/00

CPC classification number: H04B5/0037 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60 ,  H04B5/0087

Abstract: In an embodiment, a semiconductor device is disclosed that comprises a multiplexer. The multiplexer is configured to receive signals from each of a plurality of transmission coils of a wireless power transmitter as inputs and to output an output signal based at least in part on one of the signals. The semiconductor device further comprises an attenuator connected to the multiplexer that is configured to adjust a voltage of the output signal. The attenuator comprises a variable resistance. The semiconductor device further comprises a plurality of pull down circuits each corresponding to one of the transmission coils. The pull down circuits are configured to selectively clamp the signals received from the corresponding transmission coils to ground.

公开(公告)号：US20230291490A1

公开(公告)日：2023-09-14

申请号：US17692762

申请日：2022-03-11

Applicant: Renesas Electronics America Inc.

Inventor： Oleksandr KOROVIN ,  Alexandru MIHUT ,  Greg Anton ARMSTRONG ,  Leonid GOLDIN

IPC: H04J3/06 ,  H04J3/02

CPC classification number: H04J3/0667 ,  H04J3/025 ,  H04J3/0617

Abstract: Systems and methods for reducing phase delay variation impact are described. A microcontroller can receive a sequence of phase offsets determined by a slave device over time. The microcontroller can determine a weight vector based on a metric associated with the sequence of phase offsets. The microcontroller can adjust a set of filter coefficients based on the weight vector. The set of filter coefficients can be filter coefficients of a filter being implemented by the slave device to filter incoming packet data.

公开(公告)号：US11728690B2

公开(公告)日：2023-08-15

申请号：US16915940

申请日：2020-06-29

Applicant: Renesas Electronics America Inc.

Inventor： Nicholaus Smith ,  Gustavo Mehas ,  Tao Qi

IPC: H02J50/60 ,  H02J50/12 ,  H02J50/90 ,  H02J50/80

CPC classification number: H02J50/60 ,  H02J50/12 ,  H02J50/80 ,  H02J50/90

Abstract: A wireless power transmitter pulses the transmit power level unresponsively to the wireless power receiver's power requests in order to perform foreign object detection (FOD). The FOD is performed by the transmitter analyzing the receiver's responses to the pulsed power. Some embodiments avoid mistaking FOD for coil misalignment. Other features are also provided.

公开(公告)号：US20230152075A1

公开(公告)日：2023-05-18

申请号：US17989148

申请日：2022-11-17

Applicant: Renesas Electronics America Inc.

Inventor： Rudolf Pichler ,  Andreas Buchinger ,  Harald Hartl ,  Bence Gombor

IPC: G01B7/00 ,  G01D5/20

CPC classification number: G01B7/003 ,  G01D5/2053

Abstract: A radial inductive position sensor, high-resolution position sensor system and a torque sensor system for detecting a rotational movement are disclosed. The radial inductive position sensor includes at least one transmitter coil, at least one receiver coil pair with a first receiver coil and a second receiver coil, and a moving conductive target, which is connected or connectable to a rotating shaft, wherein the at least one transmitter coil and the at least one receiver coil pair are arranged on a substrate, wherein the substrate has a radial configuration for at least partially surrounding the moving conductive target and/or the rotating shaft.