公开(公告)号：US10209730B2

公开(公告)日：2019-02-19

申请号：US15821817

申请日：2017-11-23

Applicant: NXP B.V.

Inventor： Chiahung Su ,  Madan Mohan Reddy Vemula ,  Abjijeet Chandrakant Kulkarni ,  Kenneth Jaramillo ,  Siamak Delshadpour ,  Xueyang Geng

IPC: H01H35/00 ,  H01H83/00 ,  H02H3/00 ,  H01H47/00 ,  G05F3/02 ,  H02J4/00 ,  G06F1/26 ,  H04L12/10 ,  H04L12/26

Abstract: Low power solutions can be provided in a serial bus system with a logic controller circuit. The logic controller circuit can include analog circuitry that includes a plurality of analog components and trimming circuitry for configuring the analog components. Digital circuitry can be configured to switch between an active mode and a hibernation mode, wherein the hibernation mode consumes less current than the active mode. A voltage regulator circuit can be configured to generate a regulated voltage from a supply voltage. A reset generation circuit can be configured to determine that the supply voltage has reached a first threshold voltage level and enable the voltage regulator circuit. When the regulated voltage has reached a second threshold voltage level and the supply voltage has reached a third threshold voltage level, the digital circuitry can be switched to the active mode.

公开(公告)号：US10088884B2

公开(公告)日：2018-10-02

申请号：US14921276

申请日：2015-10-23

Applicant: NXP B.V.

Inventor： Kenneth Jaramillo ,  Madan Mohan Reddy Vemula ,  Sharad Murari ,  Abhijeet Chandrakant Kulkarni ,  Krishnan Tiruchi Natarajan

IPC: G06F1/26 ,  G06F1/32 ,  G06F1/00 ,  G06F13/10 ,  G06F13/42 ,  H04L12/10 ,  H04L12/40

Abstract: A protocol can specifie a power-sourcing voltage range that indicates power sourcing capabilities. Additional power sourcing capabilities can be communicated using voltage variations within the power-sourcing voltage range. A power-sourcing device can provide power to an external power-sinking device over a wired connection containing a plurality of wires. A voltage control circuit can be configured to drive a voltage over a wire of the plurality of wires. Processing circuitry can communicate, using the voltage control circuit, first power-sourcing capabilities to the external power-sinking device by setting the voltage over the wire to a value within the power-sourcing voltage range. The processing circuitry can also communicate, using the voltage control circuit, the additional power sourcing capabilities of the power-sourcing device using voltage variations on the wire, the voltage variations maintaining voltage on the wire within the power-sourcing voltage range.

公开(公告)号：US20170115711A1

公开(公告)日：2017-04-27

申请号：US14921276

申请日：2015-10-23

Applicant: NXP B.V.

Inventor： Kenneth Jaramillo ,  Madan Mohan Reddy Vemula ,  Sharad Murari ,  Abhijeet Chandrakant Kulkarni ,  Krishnan Tiruchi Natarajan

IPC: G06F1/26 ,  G06F13/10

CPC classification number: G06F1/266 ,  G06F13/102 ,  G06F13/4282 ,  G06F2213/0042 ,  H04L12/10 ,  H04L12/40045

Abstract: A protocol can specifie a power-sourcing voltage range that indicates power sourcing capabilities. Additional power sourcing capabilities can be communicated using voltage variations within the power-sourcing voltage range. A power-sourcing device can provide power to an external power-sinking device over a wired connection containing a plurality of wires. A voltage control circuit can be configured to drive a voltage over a wire of the plurality of wires. Processing circuitry can communicate, using the voltage control circuit, first power-sourcing capabilities to the external power-sinking device by setting the voltage over the wire to a value within the power-sourcing voltage range. The processing circuitry can also communicate, using the voltage control circuit, the additional power sourcing capabilities of the power-sourcing device using voltage variations on the wire, the voltage variations maintaining voltage on the wire within the power-sourcing voltage range.

公开(公告)号：US20180095490A1

公开(公告)日：2018-04-05

申请号：US15821817

申请日：2017-11-23

Applicant: NXP B.V.

Inventor： Chiahung Su ,  Madan Mohan Reddy Vemula ,  Abjijeet Chandrakant Kulkarni ,  Kenneth Jaramillo ,  Siamak Delshadpour ,  Xueyang Geng

IPC: G05F3/02 ,  H04L12/10 ,  G06F1/32 ,  G06F1/26 ,  H04L12/26 ,  H02J4/00

CPC classification number: G05F3/02 ,  G06F1/266 ,  G06F1/3253 ,  H02J4/00 ,  H04L12/10 ,  H04L43/08 ,  H04L43/16 ,  Y02D10/151 ,  Y02D50/20 ,  Y04S40/168

Abstract: Low power solutions can be provided in a serial bus system with a logic controller circuit. The logic controller circuit can include analog circuitry that includes a plurality of analog components and trimming circuitry for configuring the analog components. Digital circuitry can be configured to switch between an active mode and a hibernation mode, wherein the hibernation mode consumes less current than the active mode. A voltage regulator circuit can be configured to generate a regulated voltage from a supply voltage. A reset generation circuit can be configured to determine that the supply voltage has reached a first threshold voltage level and enable the voltage regulator circuit. When the regulated voltage has reached a second threshold voltage level and the supply voltage has reached a third threshold voltage level, the digital circuitry can be switched to the active mode.

公开(公告)号：US09998276B2

公开(公告)日：2018-06-12

申请号：US15277707

申请日：2016-09-27

Applicant: NXP B.V.

Inventor： Abhijeet Chandrakant Kulkarni ,  Kenneth Jaramillo ,  Siamak Delshadpour

IPC: G06F1/32 ,  H04L7/033 ,  H04L12/10

CPC classification number: H04L7/033 ,  G06F1/3253 ,  H04L12/10

Abstract: Disclosed is a method of controlling a USB Power Delivery System including determining whether at least a predetermined length of initial bits of a message is received, turning on a clock when the predetermined length is received, determining whether the message has stopped, starting a counter when the message has stopped, determining whether a count value of the counter has reached a predetermined value, and turning off the clock when the predetermined count value has been reached.

公开(公告)号：US20170192446A1

公开(公告)日：2017-07-06

申请号：US14989378

申请日：2016-01-06

Applicant: NXP B.V.

Inventor： Chiahung Su ,  Madan Mohan Reddy Vemula ,  Abhijeet Chandrakant Kulkarni ,  Kenneth Jaramillo

IPC: G05F3/02 ,  H02J4/00

CPC classification number: G05F3/02 ,  G06F1/266 ,  G06F1/3253 ,  H02J4/00 ,  H04L12/10 ,  H04L43/08 ,  H04L43/16 ,  Y02D10/151 ,  Y02D50/20 ,  Y04S40/168

Abstract: Low power solutions can be provided in a serial bus system with a logic controller circuit. The logic controller circuit can include analog circuitry that includes a plurality of analog components and trimming circuitry for configuring the analog components. Digital circuitry can be configured to switch between an active mode and a hibernation mode, wherein the hibernation mode consumes less current than the active mode. A voltage regulator circuit can be configured to generate a regulated voltage from a supply voltage. A reset generation circuit can be configured to determine that the supply voltage has reached a first threshold voltage level and enable the voltage regulator circuit. When the regulated voltage has reached a second threshold voltage level and the supply voltage has reached a third threshold voltage level, the digital circuitry can be switched to the active mode.

公开(公告)号：US10114782B2

公开(公告)日：2018-10-30

申请号：US15277677

申请日：2016-09-27

Applicant: NXP B.V.

Inventor： Abhijeet Chandrakant Kulkarni ,  Kenneth Jaramillo

IPC: G06F13/20 ,  G06F13/38 ,  G06F13/40 ,  G06F13/42

Abstract: A universal serial bus (USB) circuit includes a USB interface configured to transmit and receive power and data, a random number generator circuit configured to generate a random number, and a controller configured to receive the random number and to select a dual role port (DRP) duty cycle and to select a DRP duration based upon the random number, wherein the DRP duty cycle time and DRP duration are used when connecting a USB type-C DRP device to another USB type-C DRP device.