Patents by Inventor Erik Lind
Erik Lind has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240011428Abstract: The disclosure concerns a method and a control arrangement for controlling valve actuation of an ICE comprising an exhaust valve, an intake valve, and a turbo compressor. The method comprises and the control arrangement is configured to: limiting/limit valve actuation changes of the exhaust and intake valves based on compressor data including surge limit data for the turbo compressor and one or both of a current turbo compressor rotational speed and a current turbo compressor pressure ratio, to maintain a turbo compressor mass flow above a limit mass flow value.Type: ApplicationFiled: November 5, 2021Publication date: January 11, 2024Applicant: Scania CV ABInventors: Erik HÖCKERDAL, Stefan ORRLING, Oskar LEUFVEN, Erik LIND, John KROON
-
Patent number: 11641126Abstract: A system for charging a battery includes an adapter, and a charger coupled to receive power from the adapter, and to provide a charging current to the battery. The charger includes a power stage with a charge pump to provide the charging current, and a feedback circuit to provide a feedback signal to the adapter. The power stage can be one of: an adjustable current source with voltage clamp, and an adjustable voltage source with current clamp. The charge pump can be implemented as a voltage divider, so that an input adapter current is multiplied by a pre-defined divider ratio to provide the charging current. The charge pump can be one of: single-phase; and multi-phase.Type: GrantFiled: July 18, 2018Date of Patent: May 2, 2023Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Zheren Lai, Jinrong Qian, Sai Bun Wong, Ryan Erik Lind, Alexander Lee McHale
-
Patent number: 11619181Abstract: The disclosure concerns variable valve timing of a four-stroke ICE. The ICE comprises: an exhaust valve and an intake valve an exhaust camshaft an intake camshaft and a cylinder arrangement. The cylinder arrangement comprises a combustion chamber a cylinder bore and a piston. The control arrangement is configured to: perform a first sequence of changes in the timings of the exhaust and intake camshafts in order to arrive from a first camshaft timing setting at a second camshaft timing setting based on a first current maximum cylinder pressure within the combustion chamber around top dead centre fire and/or around to dead centre gas exchange.Type: GrantFiled: October 1, 2021Date of Patent: April 4, 2023Assignee: Scania CV ABInventors: Andreas Dahl, Erik Lind, Christopher Ringström
-
Patent number: 11463005Abstract: In some examples, a converter circuit can be configured to operate in a buck-boost mode. The converter circuit can include a ramp generator that can be configured to generate first and second ramp signals that at least partially overlap respective portions of a buck-boost region during each intermediate clock cycle between clock cycles of a clock signal. By generating the first and second ramp signals during each intermediate clock cycle, first and second drivers can be provided to toggle switches of a power stage, such that an output voltage provided by the power stage can be averaged out over clock cycles of the clock signal to allow for a gradual transition between buck and boost modes of operation of the converter circuit. In some examples, the converter circuit can be configured to operate in a test mode and can be configured to implement trimming of a ramp signal.Type: GrantFiled: April 27, 2020Date of Patent: October 4, 2022Assignee: Texas Instruments IncorporatedInventors: Huijuan Li, Ronnie Antone Bean, Benjamin McCue, Ryan Erik Lind
-
Patent number: 11394299Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes an amplifier having a first input configured to receive a signal representative of a condition related to a power converter, a second input configured to receive a reference signal, and an output, a PWM regulation circuit having an input coupled to the output of the amplifier, a first output configured to provide a first control signal for a high-side transistor of the power converter, and a second output configured to output a first control signal for a low-side transistor of the power converter, and a PFM regulation circuit having an input coupled to the output of the first amplifier, a first output configured to output a second control signal for the high-side transistor of the power converter, and a second output configured to output a second control signal for the low-side transistor of the power converter.Type: GrantFiled: September 10, 2019Date of Patent: July 19, 2022Assignee: Texas Instruments IncorporatedInventors: Orlando Lazaro, Reza Sharifi, Benjamin Matthew McCue, Ryan Erik Lind
-
Publication number: 20220112847Abstract: The disclosure concerns variable valve timing of a four-stroke ICE. The ICE comprises: an exhaust valve and an intake valve an exhaust camshaft an intake camshaft and a cylinder arrangement. The cylinder arrangement comprises a combustion chamber a cylinder bore and a piston. The control arrangement is configured to: perform a first sequence of changes in the timings of the exhaust and intake camshafts in order to arrive from a first camshaft timing setting at a second camshaft timing setting based on a first current maximum cylinder pressure within the combustion chamber around top dead centre fire and/or around to dead centre gas exchange.Type: ApplicationFiled: October 1, 2021Publication date: April 14, 2022Applicant: Scania CV ABInventors: Andreas DAHL, Erik LIND, Christopher RINGSTRÖM
-
Publication number: 20210336542Abstract: In some examples, a converter circuit can be configured to operate in a buck-boost mode. The converter circuit can include a ramp generator that can be configured to generate first and second ramp signals that at least partially overlap respective portions of a buck-boost region during each intermediate clock cycle between clock cycles of a clock signal. By generating the first and second ramp signals during each intermediate clock cycle, first and second drivers can be provided to toggle switches of a power stage, such that an output voltage provided by the power stage can be averaged out over clock cycles of the clock signal to allow for a gradual transition between buck and boost modes of operation of the converter circuit. In some examples, the converter circuit can be configured to operate in a test mode and can be configured to implement trimming of a ramp signal.Type: ApplicationFiled: April 27, 2020Publication date: October 28, 2021Inventors: HUIJUAN LI, RONNIE ANTONE BEAN, BENJAMIN MCCUE, RYAN ERIK LIND
-
Patent number: 11152861Abstract: This disclosure relates to a multiphase converter design with multi-path phase management circuit and output logic. The phase management circuit and output logic can be employed to implement phase adding and shedding operations based on input and output current information and based on control signals for a power stage of the converter. In some examples, the design employs an estimate of an average output current based on a current at an input of the converter for phase control. In additional examples, the design employs cycle-by-cycle current limit and maximum duty-cycle signals to enable phase quickly during load transient. In further examples, the design employs low input and output-current sensed signals for efficient phase shedding and power saving. The design herein improves an overall accuracy of phase adding and shedding, load transient response performance, an operational efficiency and thermal performance of multiphase converter.Type: GrantFiled: May 21, 2020Date of Patent: October 19, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Wenliang Chen, Reza Sharifi, Byron Mitchell Reed, Jairo Daniel Olivares, Ryan Erik Lind
-
Patent number: 11079779Abstract: One example includes a transconductor system. The system includes a first transconductance amplifier that generates a control current in response to a first input voltage. The system also includes a second transconductance amplifier that generates an output signal in response to a second input voltage. The system further includes an intermediate amplifier that generates a control voltage in response to the control current and a third input voltage. The control voltage can be provided to the first and second transconductance amplifiers to set a transconductance of each of the first and second transconductance amplifiers to be approximately equal.Type: GrantFiled: August 14, 2019Date of Patent: August 3, 2021Assignee: Texas Instruments IncorporatedInventor: Ryan Erik Lind
-
Publication number: 20200373842Abstract: This disclosure relates to a multiphase converter design with multi-path phase management circuit and output logic. The phase management circuit and output logic can be employed to implement phase adding and shedding operations based on input and output current information and based on control signals for a power stage of the converter. In some examples, the design employs an estimate of an average output current based on a current at an input of the converter for phase control. In additional examples, the design employs cycle-by-cycle current limit and maximum duty-cycle signals to enable phase quickly during load transient. In further examples, the design employs low input and output-current sensed signals for efficient phase shedding and power saving. The design herein improves an overall accuracy of phase adding and shedding, load transient response performance, an operational efficiency and thermal performance of multiphase converter.Type: ApplicationFiled: May 21, 2020Publication date: November 26, 2020Inventors: WENLIANG CHEN, REZA SHARIFI, BYRON MITCHELL REED, JAIRO DANIEL OLIVARES, RYAN ERIK LIND
-
Publication number: 20200266634Abstract: A system for charging a battery includes an adapter, and a charger coupled to receive power from the adapter, and to provide a charging current to the battery. The charger includes a power stage with a charge pump to provide the charging current, and a feedback circuit to provide a feedback signal to the adapter. The power stage can be one of: an adjustable current source with voltage clamp, and an adjustable voltage source with current clamp. The charge pump can be implemented as a voltage divider, so that an input adapter current is multiplied by a pre-defined divider ratio to provide the charging current. The charge pump can be one of: single-phase; and multi-phase.Type: ApplicationFiled: July 18, 2018Publication date: August 20, 2020Inventors: Zheren Lai, Jinrong Qian, Sai Bun Wong, Ryan Erik Lind, Alexander Lee McHale
-
Publication number: 20200127566Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes an amplifier having a first input configured to receive a signal representative of a condition related to a power converter, a second input configured to receive a reference signal, and an output, a PWM regulation circuit having an input coupled to the output of the amplifier, a first output configured to provide a first control signal for a high-side transistor of the power converter, and a second output configured to output a first control signal for a low-side transistor of the power converter, and a PFM regulation circuit having an input coupled to the output of the first amplifier, a first output configured to output a second control signal for the high-side transistor of the power converter, and a second output configured to output a second control signal for the low-side transistor of the power converter.Type: ApplicationFiled: September 10, 2019Publication date: April 23, 2020Inventors: Orlando LAZARO, Reza SHARIFI, Benjamin Matthew McCUE, Ryan Erik LIND
-
Publication number: 20190372536Abstract: One example includes a transconductor system. The system includes a first transconductance amplifier that generates a control current in response to a first input voltage. The system also includes a second transconductance amplifier that generates an output signal in response to a second input voltage. The system further includes an intermediate amplifier that generates a control voltage in response to the control current and a third input voltage. The control voltage can be provided to the first and second transconductance amplifiers to set a transconductance of each of the first and second transconductance amplifiers to be approximately equal.Type: ApplicationFiled: August 14, 2019Publication date: December 5, 2019Inventor: Ryan Erik Lind
-
Patent number: 10432157Abstract: One example includes a transconductor system. The system includes a first transconductance amplifier that generates a control current in response to a first input voltage. The system also includes a second transconductance amplifier that generates an output signal in response to a second input voltage. The system further includes an intermediate amplifier that generates a control voltage in response to the control current and a third input voltage. The control voltage can be provided to the first and second transconductance amplifiers to set a transconductance of each of the first and second transconductance amplifiers to be approximately equal.Type: GrantFiled: December 21, 2018Date of Patent: October 1, 2019Assignee: Texas Instruments IncorporatedInventor: Ryan Erik Lind
-
Patent number: 10397701Abstract: A system includes a class D amplifier and a current steering digital-to-analog converter (DAC) directly connected to the class D amplifier. The system also includes a common mode servo circuit coupled to a node interconnecting the current steering DAC to the class D amplifier. The common servo circuit amplifies a difference between a common mode signal determined from the node and a reference voltage and generates a feedback current to the node based on the amplified difference. A feed-forward common-mode compensation circuit is included to reduce an alternating current (AC) ripple from the class D amplifier. The feed-forward common-mode compensation circuit includes first and second resistors coupled to respective outputs of the class D amplifier. A current mirror is coupled to the first and second resistors and is configured to sink a current from the node to ground that approximates a common mode feedback current of the class D amplifier.Type: GrantFiled: October 31, 2018Date of Patent: August 27, 2019Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Lars Risbo, Ryan Erik Lind, Jasjot Singh Chadha
-
Patent number: 10361284Abstract: A method for fabrication of vertical nanowire MOSFETs is considered using a gate-last process. The top ohmic electrode is first fabricated and may be used as a mask to form a gate recess using etching techniques. The gate is thereafter formed allowing a large degree in access resistance reduction.Type: GrantFiled: June 21, 2016Date of Patent: July 23, 2019Inventors: Lars-Erik Wernersson, Johannes Svensson, Martin Berg, Karl-Magnus Persson, Erik Lind
-
Publication number: 20190140606Abstract: One example includes a transconductor system. The system includes a first transconductance amplifier that generates a control current in response to a first input voltage. The system also includes a second transconductance amplifier that generates an output signal in response to a second input voltage. The system further includes an intermediate amplifier that generates a control voltage in response to the control current and a third input voltage. The control voltage can be provided to the first and second transconductance amplifiers to set a transconductance of each of the first and second transconductance amplifiers to be approximately equal.Type: ApplicationFiled: December 21, 2018Publication date: May 9, 2019Inventor: Ryan Erik Lind
-
Publication number: 20190115765Abstract: A system for charging a battery includes an adapter, and a charger coupled to receive power from the adapter, and to provide a charging current to the battery. The charger includes a power stage with a charge pump to provide the charging current, and a feedback circuit to provide a feedback signal to the adapter. The power stage can be one of: an adjustable current source with voltage clamp, and an adjustable voltage source with current clamp. The charge pump can be implemented as a voltage divider, so that an input adapter current is multiplied by a pre-defined divider ratio to provide the charging current. The charge pump can be one of: single-phase; and multi-phase.Type: ApplicationFiled: July 18, 2018Publication date: April 18, 2019Inventors: Zheren Lai, Jinrong Qian, Sai Bun Wong, Ryan Erik Lind, Alexander Lee McHale
-
Publication number: 20190069087Abstract: A system includes a class D amplifier and a current steering digital-to-analog converter (DAC) directly connected to the class D amplifier. The system also includes a common mode servo circuit coupled to a node interconnecting the current steering DAC to the class D amplifier. The common servo circuit amplifies a difference between a common mode signal determined from the node and a reference voltage and generates a feedback current to the node based on the amplified difference. A feed-forward common-mode compensation circuit is included to reduce an alternating current (AC) ripple from the class D amplifier. The feed-forward common-mode compensation circuit includes first and second resistors coupled to respective outputs of the class D amplifier. A current mirror is coupled to the first and second resistors and is configured to sink a current from the node to ground that approximates a common mode feedback current of the class D amplifier.Type: ApplicationFiled: October 31, 2018Publication date: February 28, 2019Inventors: Lars Risbo, Ryan Erik Lind, Jasjot Singh Chadha
-
Patent number: 10199999Abstract: One example includes a transconductor system. The system includes a first transconductance amplifier that generates a control current in response to a first input voltage. The system also includes a second transconductance amplifier that generates an output signal in response to a second input voltage. The system further includes an intermediate amplifier that generates a control voltage in response to the control current and a third input voltage. The control voltage can be provided to the first and second transconductance amplifiers to set a transconductance of each of the first and second transconductance amplifiers to be approximately equal.Type: GrantFiled: November 9, 2017Date of Patent: February 5, 2019Assignee: TEXAS INSTRUMENTS INCORPORATEDInventor: Ryan Erik Lind