Patents by Inventor Arno Rabenstein
Arno Rabenstein 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).
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Patent number: 10148260Abstract: Methods, devices, techniques, and circuits are disclosed for fast current control of a buck converter. In one example, a device includes a pulse density modulator, an analog comparator, and an interconnect circuit. The analog comparator has a first input connected to a peak current reference. The interconnect circuit has a first input connected to an output of the pulse density modulator and a second input connected to an output of the analog comparator. The device has an output terminal of the interconnect circuit.Type: GrantFiled: June 12, 2015Date of Patent: December 4, 2018Assignee: Infineon Technologies AGInventors: Attila Tomasovics, Arno Rabenstein
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Patent number: 10056857Abstract: A motor control system and associated method includes a transform component configured to receive current values associated with a motor being driven by the motor control system, and output rotating coordinate system values representing a flux generating component and a torque generating component of a current space vector. The motor control system and method further includes a control component configured to receive the flux generating component and the torque generating component of the current space vector, and generate motor control signals for driving the motor by performing a Cartesian to polar transform to obtain values associated with a rotating coordinate system followed by an angle addition to convert the rotating coordinate system values to values of a stationary coordinate system.Type: GrantFiled: August 29, 2016Date of Patent: August 21, 2018Assignee: Infineon Technologies AGInventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
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Patent number: 9966889Abstract: Representative implementations of devices and techniques provide optimized control of a three-phase AC motor. A field oriented control (FOC) arrangement uses optimization components and techniques to improve power efficiency of the motor, with fast control response over a full range of motor speeds.Type: GrantFiled: May 9, 2014Date of Patent: May 8, 2018Assignee: Infineon Technologies AGInventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok
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Patent number: 9705438Abstract: A controller for controlling a multi-phase motor is described. The controller may be configured to measure a plurality of phase voltages of the multi-phase motor when the multi-phase motor is in an uncontrolled state. The controller may be configured to determine, based on the plurality of measured phase voltages, a position and a velocity of a rotor of the multi-phase motor. The velocity of the rotor includes a speed of the rotor and a direction of the rotor. The controller may be further configured to, responsive to determining that the direction of the rotor is a forward direction and the speed of the rotor satisfies a closed-loop threshold speed: set, based on the position of the rotor and the velocity of the rotor, at least one initial control condition of the rotor, and control, using closed-loop control and based on the at least one initial control condition, the rotor.Type: GrantFiled: July 14, 2015Date of Patent: July 11, 2017Assignee: Infineon Technologies Austria AGInventors: Tao Zhao, Arno Rabenstein, Choon Keat Kok
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Patent number: 9660564Abstract: Representative implementations of devices and techniques provide optimized control of a three-phase AC motor. A field oriented control (FOC) arrangement uses optimization components and techniques to improve power efficiency of the motor, with fast control response over a full range of motor speeds.Type: GrantFiled: May 9, 2014Date of Patent: May 23, 2017Assignee: Infineon Technologies AGInventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
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Publication number: 20170054395Abstract: A motor control system and associated method includes a transform component configured to receive current values associated with a motor being driven by the motor control system, and output rotating coordinate system values representing a flux generating component and a torque generating component of a current space vector. The motor control system and method further includes a control component configured to receive the flux generating component and the torque generating component of the current space vector, and generate motor control signals for driving the motor by performing a Cartesian to polar transform to obtain values associated with a rotating coordinate system followed by an angle addition to convert the rotating coordinate system values to values of a stationary coordinate system.Type: ApplicationFiled: August 29, 2016Publication date: February 23, 2017Inventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
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Publication number: 20170019043Abstract: A controller for controlling a multi-phase motor is described. The controller may be configured to measure a plurality of phase voltages of the multi-phase motor when the multi-phase motor is in an uncontrolled state. The controller may be configured to determine, based on the plurality of measured phase voltages, a position and a velocity of a rotor of the multi-phase motor. The velocity of the rotor includes a speed of the rotor and a direction of the rotor. The controller may be further configured to, responsive to determining that the direction of the rotor is a forward direction and the speed of the rotor satisfies a closed-loop threshold speed: set, based on the position of the rotor and the velocity of the rotor, at least one initial control condition of the rotor, and control, using closed-loop control and based on the at least one initial control condition, the rotor.Type: ApplicationFiled: July 14, 2015Publication date: January 19, 2017Inventors: Tao Zhao, Arno Rabenstein, Choon Keat Kok
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Publication number: 20160365847Abstract: Methods, devices, techniques, and circuits are disclosed for fast current control of a buck converter. In one example, a device includes a pulse density modulator, an analog comparator, and an interconnect circuit. The analog comparator has a first input connected to a peak current reference. The interconnect circuit has a first input connected to an output of the pulse density modulator and a second input connected to an output of the analog comparator. The device has an output terminal of the interconnect circuit.Type: ApplicationFiled: June 12, 2015Publication date: December 15, 2016Inventors: Attila Tomasovics, Arno Rabenstein
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Publication number: 20160359442Abstract: Representative implementations of devices and techniques provide optimized control of a three-phase AC motor. A field oriented control (FOC) arrangement uses optimization components and techniques to improve power efficiency of the motor, with fast control response over a full range of motor speeds.Type: ApplicationFiled: May 9, 2014Publication date: December 8, 2016Applicant: Infineon Technologies AGInventors: Tao ZHAO, Arno RABENSTEIN, Theng Kiong GAN, Choon Keat KOK, Sze Main WONG
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Patent number: 9479084Abstract: A method of performing space vector modulation for PWM control for creating AC waveforms includes generating and sampling a reference signal to generate reference samples and performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples. The reference vector approximation employs active vectors, one or more zero vectors, and one or more pseudo zero vectors in the formation thereof. Another method of performing space vector modulation (SVM) includes generating a reference signal and sampling the reference signal at a sampling frequency to generate a plurality of reference samples. The method also includes performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples, wherein the reference vector approximation has a first portion that employs two adjacent active vectors and a remaining portion that employs two non-adjacent active vectors in the formation thereof.Type: GrantFiled: August 28, 2013Date of Patent: October 25, 2016Assignee: Infineon Technologies AGInventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
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Patent number: 9479099Abstract: The present disclosure relates to a motor control circuit and related method that includes a transform component configured to receive current values associated with a motor being driven by the motor control circuit, and output polar coordinate values representing a magnitude component and a direction component of a current space vector. The motor control circuit further includes a control component configured to receive the magnitude component and the direction component of the current space vector, and generate motor control signals for driving the motor.Type: GrantFiled: January 30, 2014Date of Patent: October 25, 2016Assignee: Infineon Technologies AGInventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
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Patent number: 9444382Abstract: A motor control system and associated method includes a transform component configured to receive current values associated with a motor being driven by the motor control system, and output rotating coordinate system values representing a flux generating component and a torque generating component of a current space vector. The motor control system and method further includes a control component configured to receive the flux generating component and the torque generating component of the current space vector, and generate motor control signals for driving the motor by performing a Cartesian to polar transform to obtain values associated with a rotating coordinate system followed by an angle addition to convert the rotating coordinate system values to values of a stationary coordinate system.Type: GrantFiled: January 30, 2014Date of Patent: September 13, 2016Assignee: Infineon Technologies AGInventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
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Publication number: 20150347758Abstract: The invention relates to methods and systems for securely transferring embedded code or data to a customer, in particular to methods and systems for securely transferring embedded code, data files or program files designed for a device to a customer in order to prevent the embedded code, data files or program files from being used on unauthorized devices.Type: ApplicationFiled: July 15, 2015Publication date: December 3, 2015Inventors: Min Wei Ang, Gerd Dirscherl, Arno Rabenstein
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Patent number: 9130482Abstract: A method of performing space vector modulation for PWM control for creating AC waveforms includes generating and sampling a reference signal to generate reference samples and performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples. The reference vector approximation employs active vectors, one or more zero vectors, and one or more pseudo zero vectors in the formation thereof. Another method of performing space vector modulation (SVM) includes generating a reference signal and sampling the reference signal at a sampling frequency to generate a plurality of reference samples. The method also includes performing a reference vector approximation to synthesize a reference vector associated with at least one of the reference samples, wherein the reference vector approximation has a first portion that employs two adjacent active vectors and a remaining portion that employs two non-adjacent active vectors in the formation thereof.Type: GrantFiled: August 28, 2013Date of Patent: September 8, 2015Assignee: Infineon Technologies AGInventors: Tao Zhao, Arno Rabenstein, Theng Kiong Gan, Choon Keat Kok, Sze Main Wong
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Patent number: 9116841Abstract: The invention relates to methods and systems for securely transferring embedded code or data to a customer, in particular to methods and systems for securely transferring embedded code, data files or program files designed for a device to a customer in order to prevent the embedded code, data files or program files from being used on unauthorized devices.Type: GrantFiled: November 28, 2012Date of Patent: August 25, 2015Assignee: Infineon Technologies AGInventors: Min Wei Ang, Gerd Dirscherl, Arno Rabenstein
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Patent number: 9055632Abstract: Representative implementations of devices and techniques provide a bit packing arrangement for a control signal. The control signal is received as a bit stream having a first rate of change. A packed control signal having a varying rate of change may be generated based on the bit stream. The average rate of change of the packed control signal is less than the first rate of change.Type: GrantFiled: August 10, 2012Date of Patent: June 9, 2015Assignee: INFINEON TECHNOLOGIES AGInventors: Attila Tomasovics, Arno Rabenstein
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Patent number: 9036657Abstract: Representative implementations of devices and techniques provide a modulation arrangement for a control signal. The control signal is received as a digital value. A modulated control signal having a varying rate of change may be generated based on the quantity of off-bits and the quantity of on-bits of the digital value.Type: GrantFiled: January 14, 2013Date of Patent: May 19, 2015Assignee: Infineon Technologies AGInventors: Attila Tomasovics, Arno Rabenstein, Jan Boril, Matthias Burkert
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Patent number: 9024794Abstract: The disclosure relates to analog to digital converters, in particular to logical circuit blocks, a system and a method, which provide functionality of an additional analog to digital converter. In accordance with an aspect of the disclosure, there is provided a logical circuit block, which is configured to be connected to a plurality of ADCs each including a plurality of input pins connected to a plurality of analog input channels. The logical circuit block is further configured to cause one ADC of the plurality of ADCs to perform an ADC conversion of an analog input signal received via a particular analog input channel of the plurality of analog input channels to which an input pin of the one ADC is connected.Type: GrantFiled: February 8, 2013Date of Patent: May 5, 2015Assignee: Infineon Technologies AGInventors: Jens Barrenscheen, Arno Rabenstein, Hans Sulzer
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Publication number: 20140333241Abstract: Representative implementations of devices and techniques provide optimized control of a three-phase AC motor. A field oriented control (FOC) arrangement uses optimization components and techniques to improve power efficiency of the motor, with fast control response over a full range of motor speeds.Type: ApplicationFiled: May 9, 2014Publication date: November 13, 2014Applicant: Infineon Technologies AGInventors: Tao ZHAO, Arno RABENSTEIN, Theng Kiong GAN, Choon Keat KOK
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Patent number: 8866655Abstract: Representative implementations of devices and techniques provide a variable quantizer for a modulator. A compare value of the quantizer changes with each clock cycle of the modulator. The variable compare value results in a spread spectrum output of the modulator.Type: GrantFiled: August 10, 2012Date of Patent: October 21, 2014Assignee: Infineon Technologies AGInventors: Attila Tomasovics, Arno Rabenstein