Patents by Inventor Torsten Hinz
Torsten Hinz 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).
-
Patent number: 10727751Abstract: A switched-mode power supply includes: a switching converter converts an input voltage into an output voltage in accordance with a switching signal, wherein the switching converter includes a transformer providing galvanic isolation between a primary side and a secondary side of the switching converter; and a wake-up circuit connected to the secondary side of the switching converter, the wake-up circuit coupled to the secondary side of the switching converter and operable to generate a feedback signal that indicates whether the output voltage is greater than or equal to a threshold value. A primary side regulator generates a control signal depending on a reference value and a measured value (VAUX) representing the output voltage. Primary side logic generates the switching signal depending on the control signal. A tracking unit receives the feedback signal via a galvanically isolating component and adjusts the reference voltage based on the feedback signal.Type: GrantFiled: April 24, 2019Date of Patent: July 28, 2020Assignee: Infineon Technologies Austria AGInventors: Marc Fahlenkamp, Torsten Hinz
-
Patent number: 10707745Abstract: A power supply circuit is equipped with a converter circuit configured to convert an alternating current signal applied at an input of the power supply circuit into a direct current signal. A control circuit for the power supply circuit is configured to detect a phase of the alternating current signal and to control discharging of an internal capacitive element of the power supply circuit based on the detected phase of the alternating current signal.Type: GrantFiled: June 11, 2018Date of Patent: July 7, 2020Assignee: Infineon Technologies Austria AGInventors: Martin Feldtkeller, Torsten Hinz, Jens Barrenscheen, Reinhard Mueller, Anthony Sanders
-
Publication number: 20190341852Abstract: A switched-mode power supply includes: a switching converter converts an input voltage into an output voltage in accordance with a switching signal, wherein the switching converter includes a transformer providing galvanic isolation between a primary side and a secondary side of the switching converter; and a wake-up circuit connected to the secondary side of the switching converter, the wake-up circuit coupled to the secondary side of the switching converter and operable to generate a feedback signal that indicates whether the output voltage is greater than or equal to a threshold value. A primary side regulator generates a control signal depending on a reference value and a measured value (VAUX) representing the output voltage. Primary side logic generates the switching signal depending on the control signal. A tracking unit receives the feedback signal via a galvanically isolating component and adjusts the reference voltage based on the feedback signal.Type: ApplicationFiled: April 24, 2019Publication date: November 7, 2019Inventors: Marc Fahlenkamp, Torsten Hinz
-
Patent number: 10243472Abstract: Techniques are described to adjust the time when a switch is turned on from the time of one voltage valley to the time of another voltage valley for controlling an average load current or average load voltage. In some examples, the adjustment is instantaneous, and in some examples, the adjustment is gradual. Both of these example techniques provide for high switching efficiency of the switch.Type: GrantFiled: December 12, 2014Date of Patent: March 26, 2019Assignee: Infineon Technologies Austria AGInventors: Marcus Schaemann, Josef Neulinger, Martin Krueger, Torsten Hinz
-
Publication number: 20180358890Abstract: A power supply circuit is equipped with a converter circuit configured to convert an alternating current signal applied at an input of the power supply circuit into a direct current signal. A control circuit for the power supply circuit is configured to detect a phase of the alternating current signal and to control discharging of an internal capacitive element of the power supply circuit based on the detected phase of the alternating current signal.Type: ApplicationFiled: June 11, 2018Publication date: December 13, 2018Inventors: Martin Feldtkeller, Torsten Hinz, Jens Barrenscheen, Reinhard Mueller, Anthony Sanders
-
Patent number: 9941798Abstract: In accordance with an embodiment, a method of operating a switched-mode power converter includes defining at least one of a minimum switching frequency threshold and a maximum switching frequency threshold; detecting valleys occurring in a voltage over the switching element when the switching element is in an off-state; and either in a quasi-resonant mode, switching the switching element on when an nth consecutive valley occurs, n being an integer equal to or greater than one, so that the actual switching frequency is at least one of: below the maximum switching frequency threshold and above the minimum switching frequency threshold, or in a forced switching frequency mode, switching the switching element on so that the actual switching frequency is the maximum or the minimum switching frequency.Type: GrantFiled: February 3, 2015Date of Patent: April 10, 2018Assignee: INFINEON TECHNOLOGIES AUSTRIA AGInventors: Martin Krueger, Marc Fahlenkamp, Torsten Hinz
-
Patent number: 9893602Abstract: In accordance with an embodiment, a method of operating a switched-mode power converter includes driving a switching element in successive drive cycles, in which the switching element is driven to switch on for an on-period and subsequently driven to switch off for an off-period; sampling a feedback signal two or more times during the drive cycles, where the feedback signal includes a signal representative of an operation parameter of the switched-mode power converter and noise. The method further includes filtering the sampled feedback signal to extract the signal representative of the operation parameter from the sampled feedback signal and controlling the switching element according to the filtered feedback signal.Type: GrantFiled: February 3, 2015Date of Patent: February 13, 2018Assignee: Infineon Technologies Austria AGInventors: Martin Krueger, Marc Fahlenkamp, Torsten Hinz
-
Publication number: 20170288554Abstract: In accordance with an embodiment, a power conversion method includes operating a power converter circuit in one of a first operation and a second operation mode based on a feedback signal and a signal level of an output signal at an output. The power converter includes a transformer with a primary winding and a secondary winding, a first electronic switch connected in series with the primary winding, and a rectifier circuit connected between the secondary winding and the output and comprising a second electronic switch.Type: ApplicationFiled: March 31, 2016Publication date: October 5, 2017Inventors: Marc Fahlenkamp, Torsten Hinz, Martin Krueger, Anders Lind, Jon Mark Hancock, Allan Saliva
-
Patent number: 9698695Abstract: A method of cycle-by-cycle operation of a switched-mode power converter includes converting an input voltage at the primary side to an output voltage at the secondary side by switching a transistor connected to the primary side from an on-state to an off-state during the present cycle, detecting valleys in a voltage across the transistor in the off-state, determining which valley at which the transistor is to be switched from the off-state to the on-state in the next switching cycle, and determining a maximum peak current limit for the primary side above which the transistor is switched from the on-state to the off-state in the next switching cycle. The maximum peak current limit is determined as a function of the input voltage and the valley at which the transistor is to be switched from the off-state to the on-state in the next switching cycle. Forced valley switching techniques are also disclosed.Type: GrantFiled: February 24, 2015Date of Patent: July 4, 2017Assignee: Infineon Technologies Austria AGInventors: Marc Fahlenkamp, Torsten Hinz, Martin Krueger, Josef Neulinger
-
Patent number: 9647562Abstract: In accordance with an embodiment, a method includes driving an electronic switch in a switched-mode power converter in successive drive cycles, wherein driving the switch in each of the drive cycles comprises switching on the electronic for an on-period and subsequently switching off the electronic switch for an off-period. The method further includes establishing the on-period based on a comparison of an on-time signal with an off-threshold, calculating the off-threshold based on an output signal of the switched-mode power converter and a compensation offset, and calculating the compensation offset in one drive cycle based on an estimated delay time, wherein the estimated delay time is calculated based on a measured delay time and an estimated delay time of a previous drive cycle.Type: GrantFiled: January 28, 2015Date of Patent: May 9, 2017Assignee: Infineon Technologies Austria AGInventors: Torsten Hinz, Marc Fahlenkamp, Martin Krueger, Jens Barrenscheen
-
Patent number: 9626317Abstract: An arbiter can be used for processing a plurality of asynchronous data signals. Each data signal is associated with a request signal and a respective acknowledge signal. The arbiter includes a latch array with an input coupled to receive the data signals and request signals and an output coupled to provide a data vector and a validity vector. The data vector includes values depending on the data signals and the validity vector includes values depending on the request signals when the latch array is in a transparent state. Logic circuitry is configured to trigger the latch array when any of the request signals becomes active, to activate a global request signal a delay time after the latch has been triggered, and to selectively activate the acknowledge signals for a channel or channels for which an active request signal has been latched.Type: GrantFiled: May 30, 2014Date of Patent: April 18, 2017Assignee: Infineon Technologies Austria AGInventors: Tommaso Bacigalupo, Torsten Hinz
-
Patent number: 9515545Abstract: In accordance with an embodiment, a method includes driving an electronic switch in a switched-mode power converter in successive drive cycles, wherein driving the switch in each of the drive cycles comprises switching on the electronic for an on-period and subsequently switching off the electronic switch for an off-period, and measuring an operation parameter of the switched-mode power converter during the on-periods of the drive cycles, and storing the operation parameter measured in an on-period if a duration of the on-period met a predefined criteria. The method further includes forcing the on-period of a drive cycle to meet the predefined criteria if the operation parameter has not been stored for a predefined number of drive cycles, or for a pre-defined time duration.Type: GrantFiled: January 16, 2015Date of Patent: December 6, 2016Assignee: Infineon Technologies Austria AGInventors: Torsten Hinz, Marc Fahlenkamp, Martin Krueger
-
Patent number: 9502981Abstract: A power converter is described that includes a switch. The power converter may also include a controller that controls the switch. The controller may be configured to ascertain a first parameter. Additionally, the controller may be configured to ascertain a second parameter. The controller may dynamically modulate duty cycle of the switch based on the first parameter and the second parameter in addition and independent of the control loop.Type: GrantFiled: April 24, 2014Date of Patent: November 22, 2016Assignee: Infineon Technologies Austria AGInventors: Marcus Schaemann, Torsten Hinz
-
Publication number: 20150311803Abstract: A power converter is described that includes a switch. The power converter may also include a controller that controls the switch. The controller may be configured to ascertain a first parameter. Additionally, the controller may be configured to ascertain a second parameter. The controller may dynamically modulate duty cycle of the switch based on the first parameter and the second parameter in addition and independent of the control loop.Type: ApplicationFiled: April 24, 2014Publication date: October 29, 2015Applicant: Infineon Technologies Austria AGInventors: Marcus Schaemann, Torsten Hinz
-
Publication number: 20150280576Abstract: In accordance with an embodiment, a method of controlling a switched-mode power supply includes demagnetizing a secondary winding of a transformer, monitoring an ending condition of the demagnetizing, tracking an elapsed time until the ending condition is detected based on the monitoring, and shutting down the switched-mode power supply when the elapsed time exceeds a predetermined threshold.Type: ApplicationFiled: February 6, 2015Publication date: October 1, 2015Inventors: Torsten Hinz, Martin Krueger, Markus Schnell
-
Publication number: 20150244272Abstract: Techniques are described to adjust the time when a switch is turned on from the time of one voltage valley to the time of another voltage valley for controlling an average load current or average load voltage. In some examples, the adjustment is instantaneous, and in some examples, the adjustment is gradual. Both of these example techniques provide for high switching efficiency of the switch.Type: ApplicationFiled: December 12, 2014Publication date: August 27, 2015Inventors: Marcus Schaemann, Josef Neulinger, Martin Krueger, Torsten Hinz
-
Publication number: 20150244246Abstract: In accordance with an embodiment, a method of operating a switched-mode power converter includes driving a switching element in successive drive cycles, in which the switching element is driven to switch on for an on-period and subsequently driven to switch off for an off-period; sampling a feedback signal two or more times during the drive cycles, where the feedback signal includes a signal representative of an operation parameter of the switched-mode power converter and noise. The method further includes filtering the sampled feedback signal to extract the signal representative of the operation parameter from the sampled feedback signal and controlling the switching element according to the filtered feedback signal.Type: ApplicationFiled: February 3, 2015Publication date: August 27, 2015Inventors: Martin Krueger, Marc Fahlenkamp, Torsten Hinz
-
Publication number: 20150244275Abstract: In accordance with an embodiment, a method includes driving an electronic switch in a switched-mode power converter in successive drive cycles, wherein driving the switch in each of the drive cycles comprises switching on the electronic for an on-period and subsequently switching off the electronic switch for an off-period. The method further includes establishing the on-period based on a comparison of an on-time signal with an off-threshold, calculating the off-threshold based on an output signal of the switched-mode power converter and a compensation offset, and calculating the compensation offset in one drive cycle based on an estimated delay time, wherein the estimated delay time is calculated based on a measured delay time and an estimated delay time of a previous drive cycle.Type: ApplicationFiled: January 28, 2015Publication date: August 27, 2015Inventors: Torsten Hinz, Marc Fahlenkamp, Martin Krueger, Jens Barrenscheen
-
Publication number: 20150236597Abstract: In accordance with an embodiment, a method includes driving an electronic switch in a switched-mode power converter in successive drive cycles, wherein driving the switch in each of the drive cycles comprises switching on the electronic for an on-period and subsequently switching off the electronic switch for an off-period, and measuring an operation parameter of the switched-mode power converter during the on-periods of the drive cycles, and storing the operation parameter measured in an on-period if a duration of the on-period met a predefined criteria. The method further includes forcing the on-period of a drive cycle to meet the predefined criteria if the operation parameter has not been stored for a predefined number of drive cycles, or for a pre-defined time duration.Type: ApplicationFiled: January 16, 2015Publication date: August 20, 2015Inventors: Torsten Hinz, Marc Fahlenkamp, Martin Krueger
-
Publication number: 20150236598Abstract: In accordance with an embodiment, a method of operating a switched-mode power converter includes defining at least one of a minimum switching frequency threshold and a maximum switching frequency threshold; detecting valleys occurring in a voltage over the switching element when the switching element is in an off-state; and either in a quasi-resonant mode, switching the switching element on when an nth consecutive valley occurs, n being an integer equal to or greater than one, so that the actual switching frequency is at least one of: below the maximum switching frequency threshold and above the minimum switching frequency threshold, or in a forced switching frequency mode, switching the switching element on so that the actual switching frequency is the maximum or the minimum switching frequency.Type: ApplicationFiled: February 3, 2015Publication date: August 20, 2015Inventors: Martin Krueger, Marc Fahlenkamp, Torsten Hinz