-
公开(公告)号：US12081371B2
公开(公告)日：2024-09-03
申请号：US18059595
申请日：2022-11-29
Applicant: NXP B.V.
Inventor： Cornelis Klaas Waardenburg , Johannes Petrus Antonius Frambach , Stefan Paul van den Hoek , Rinke de Jong
CPC classification number: H04L25/0276 , H03F3/45511 , H04L12/40 , H04L2012/40215
Abstract: An attenuation device for a CAN transceiver comprises two device output nodes configured to electrically couple the attenuation device via the device output nodes between two transceiver terminals of the CAN transceiver. The attenuation device is configured to change from a first device state to a second device state when a common mode voltage is applied to the device output nodes that is either greater than a first reference voltage or less than a second reference voltage that is less than the first reference voltage. The attenuation device causes a first electrical output resistance at each device output node during the first device state and causes a second electrical output resistance at each device output node during the second device state in which the second output resistance is less than the first output resistance.
-
公开(公告)号：US20240120956A1
公开(公告)日：2024-04-11
申请号：US18463174
申请日：2023-09-07
Applicant: NXP B.V.
Inventor： Johannes Petrus Antonius Frambach , Cornelis Klaas Waardenburg , Stefan Paul van den Hoek , Gerard Arie de Wit
CPC classification number: H04B1/04 , H04L12/40 , H04L2012/40215
Abstract: A transmitter circuit including an impedance setting circuit having first and second legs, wherein each leg includes an adjustable pull-up resistance and an adjustable pull-down resistance connected in series between a supply terminal and a reference terminal. A first-leg-node, between the adjustable resistances of the first leg, is connected to a first bus terminal. A second-leg-node, between the adjustable resistances of the second leg, is connected to a second bus terminal. The controller detects a transition in a transmission data signal, and in response to a dominant to recessive transition the controller controls a voltage setting circuit to set the differential driver voltage on the bus to a recessive value; adjusts each of the adjustable pull-up resistances and the adjustable pull-down resistances with the same target impedance profile such that the transmitter circuit drives the bus with a target driver impedance for an active recessive period of a bit time.
-
公开(公告)号：US11843388B2
公开(公告)日：2023-12-12
申请号：US17647739
申请日：2022-01-12
Applicant: NXP B.V.
CPC classification number: H03L7/0991 , G11C7/1036 , G11C7/16 , H03L7/081 , H03L7/085
Abstract: A Controller Area Network (CAN) transmitter, in which transitions between output levels are smoothed through use of multiple Digital to Analog Converters (DACs) switched by a multi-phase clock signal. Example embodiments include a CAN transmitter (100) comprising: an oscillator (101) configured to generate a clock signal having n equally spaced phases (clk_0, clk_120, clk_240), where n is an integer greater than 1; n Digital to Analog Converters, DACs (1021-3), each DAC having an input connected to one of the n phases of the clock signal and to a common data input line, each DAC being configured to provide an output signal that transitions between first and second output levels in M discrete steps upon being triggered by a transition of a signal on the data input line synchronized with the one of the n phases of the clock signal; and an output amplifier stage (103) configured to provide a differential CAN output signal from a combination of output signals from each of the n DACs (1021-3).
-
公开(公告)号：US12224781B2
公开(公告)日：2025-02-11
申请号：US18463174
申请日：2023-09-07
Applicant: NXP B.V.
Inventor： Johannes Petrus Antonius Frambach , Cornelis Klaas Waardenburg , Stefan Paul van den Hoek , Gerard Arie de Wit
Abstract: A transmitter circuit including an impedance setting circuit having first and second legs, wherein each leg includes an adjustable pull-up resistance and an adjustable pull-down resistance connected in series between a supply terminal and a reference terminal. A first-leg-node, between the adjustable resistances of the first leg, is connected to a first bus terminal. A second-leg-node, between the adjustable resistances of the second leg, is connected to a second bus terminal. The controller detects a transition in a transmission data signal, and in response to a dominant to recessive transition the controller controls a voltage setting circuit to set the differential driver voltage on the bus to a recessive value; adjusts each of the adjustable pull-up resistances and the adjustable pull-down resistances with the same target impedance profile such that the transmitter circuit drives the bus with a target driver impedance for an active recessive period of a bit time.
-
公开(公告)号：US20230179454A1
公开(公告)日：2023-06-08
申请号：US18059595
申请日：2022-11-29
Applicant: NXP B.V.
Inventor： Cornelis Klaas Waardenburg , Johannes Petrus Antonius Frambach , Stefan Paul van den Hoek , Rinke de Jong
CPC classification number: H04L25/0276 , H03F3/45511 , H04L12/40 , H04L2012/40215
Abstract: An attenuation device for a CAN transceiver comprises two device output nodes configured to electrically couple the attenuation device via the device output nodes between two transceiver terminals of the CAN transceiver. The attenuation device is configured to change from a first device state to a second device state when a common mode voltage is applied to the device output nodes that is either greater than a first reference voltage or less than a second reference voltage that is less than the first reference voltage. The attenuation device causes a first electrical output resistance at each device output node during the first device state and causes a second electrical output resistance at each device output node during the second device state in which the second output resistance is less than the first output resistance.
-
Patent Agency Ranking
公开(公告)号：US20220247416A1
公开(公告)日：2022-08-04
申请号：US17647739
申请日：2022-01-12
Applicant: NXP B.V.
Abstract: The disclosure relates to a Controller Area Network (CAN) transmitter, in which transitions between output levels are smoothed through use of multiple Digital to Analog Converters (DACs) switched by a multi-phase clock signal. Example embodiments include a CAN transmitter (100) comprising: an oscillator (101) configured to generate a clock signal having n equally spaced phases (clk_0, clk_120, clk_240), where n is an integer greater than 1; n Digital to Analog Converters, DACs (1021-3), each DAC having an input connected to one of the n phases of the clock signal and to a common data input line, each DAC being configured to provide an output signal that transitions between first and second output levels in M discrete steps upon being triggered by a transition of a signal on the data input line synchronized with the one of the n phases of the clock signal; and an output amplifier stage (103) configured to provide a differential CAN output signal from a combination of output signals from each of the n DACs (1021-3).
-
公开(公告)号：US09720020B2
公开(公告)日：2017-08-01
申请号：US14289420
申请日：2014-05-28
Applicant: NXP B.V.
Inventor： Luc van Dijk , Cornelis Klaas Waardenburg
IPC: G01R19/00 , H03K17/082 , G01R19/165 , G01R1/20 , G01R31/00
CPC classification number: G01R19/0092 , G01R1/203 , G01R19/0023 , G01R19/16519 , G01R31/005 , H03K17/0822 , H03K2217/0027
Abstract: An apparatus, method and integrated circuit for broad-range current measurement using variable resistance are disclosed. Embodiments of an apparatus for sensing current through a transistor device may include an interface configured to receive a current from the transistor device for sensing. In an embodiment, the apparatus may also include a sensor component coupled to the interface and configured to receive the current from the transistor device and to generate a responsive sensor voltage, the sensor component comprising an adjustable resistance component, a resistance value of the adjustable resistance component being selectable in response to a level of the current received at the interface.
-
公开(公告)号：US20150346239A1
公开(公告)日：2015-12-03
申请号：US14289397
申请日：2014-05-28
Applicant: NXP B.V.
Inventor： Luc van Dijk , Cornelis Klaas Waardenburg
CPC classification number: G01R15/09 , G01R19/0092 , G01R19/16519 , G01R31/006 , H03K17/0822 , H03K2217/0027
Abstract: An apparatus, method and integrated circuit for broad-range current measurement using duty cycling are disclosed. Embodiments of an apparatus for sensing current through a transistor device may include an interface configured to receive a current from the transistor device for sensing. Additionally, embodiments may include a sensor component coupled to the interface and configured to receive the current from the transistor device and to generate a responsive sensor voltage. Embodiments may also include a sense control circuit configured to control a duty cycle of the sensor component.
Abstract translation: 公开了一种使用负载循环进行宽范围电流测量的装置，方法和集成电路。 用于感测通过晶体管器件的电流的装置的实施例可以包括被配置为从晶体管器件接收电流以进行感测的接口。 另外，实施例可以包括耦合到接口并被配置为从晶体管器件接收电流并产生响应传感器电压的传感器部件。 实施例还可以包括被配置为控制传感器部件的占空比的感测控制电路。
-
公开(公告)号：US09891249B2
公开(公告)日：2018-02-13
申请号：US14289397
申请日：2014-05-28
Applicant: NXP B.V.
Inventor： Luc van Dijk , Cornelis Klaas Waardenburg
IPC: G01R15/09 , G01R1/30 , G01R19/00 , H03K17/082 , G01R19/165 , G01R31/00
CPC classification number: G01R15/09 , G01R19/0092 , G01R19/16519 , G01R31/006 , H03K17/0822 , H03K2217/0027
Abstract: An apparatus, method and integrated circuit for broad-range current measurement using duty cycling are disclosed. Embodiments of an apparatus for sensing current through a transistor device may include an interface configured to receive a current from the transistor device for sensing. Additionally, embodiments may include a sensor component coupled to the interface and configured to receive the current from the transistor device and to generate a responsive sensor voltage. Embodiments may also include a sense control circuit configured to control a duty cycle of the sensor component.
-
公开(公告)号：US20150346241A1
公开(公告)日：2015-12-03
申请号：US14289420
申请日：2014-05-28
Applicant: NXP B.V.
Inventor： Luc van Dijk , Cornelis Klaas Waardenburg
IPC: G01R19/00
CPC classification number: G01R19/0092 , G01R1/203 , G01R19/0023 , G01R19/16519 , G01R31/005 , H03K17/0822 , H03K2217/0027
Abstract: An apparatus, method and integrated circuit for broad-range current measurement using variable resistance are disclosed. Embodiments of an apparatus for sensing current through a transistor device may include an interface configured to receive a current from the transistor device for sensing. In an embodiment, the apparatus may also include a sensor component coupled to the interface and configured to receive the current from the transistor device and to generate a responsive sensor voltage, the sensor component comprising an adjustable resistance component, a resistance value of the adjustable resistance component being selectable in response to a level of the current received at the interface.
Abstract translation: 公开了一种使用可变电阻进行宽范围电流测量的装置，方法和集成电路。 用于感测通过晶体管器件的电流的装置的实施例可以包括被配置为从晶体管器件接收电流以进行感测的接口。 在一个实施例中，该装置还可以包括耦合到该接口并被配置为从该晶体管器件接收电流并产生响应传感器电压的传感器部件，该传感器部件包括可调电阻部件，该可调电阻器的电阻值 组件可响应于在接口处接收的电流的电平而被选择。
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.013 seconds)
