Patents by Inventor Ali Fawaz
Ali Fawaz 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: 10250144Abstract: An example relates to a method for operating a converter comprising a primary side of a transformer and a secondary side of the transformer, wherein a switching element is used for conveying energy from the primary side to the secondary side, the method comprising (i) determining a voltage drop across the primary side of the transformer; (ii) determining at least one additional voltage drop across at least one component of the converter's primary side; and (iii) determining an input voltage at the converter via the voltage drops.Type: GrantFiled: July 8, 2015Date of Patent: April 2, 2019Assignee: INFINEON TECHNOLOGIES AUSTRIA AGInventors: Marcus Schaemann, Robert Pizzuti, Ali Fawaz
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Patent number: 9819259Abstract: In accordance with an embodiment, a method of operating a power system includes operating a power converter at a first output power, monitoring a first input voltage at an input port of the power converter. The method further includes upon detecting that the first input voltage drops below a first pre-determined voltage threshold, reducing the first output power of the power converter to a second output power lower than the first output power, and suspending operation of the power converter after the reducing the first output power of the power converter.Type: GrantFiled: November 30, 2015Date of Patent: November 14, 2017Assignee: INFINEON TECHNOLOGIES AUSTRIA AGInventors: Ali Fawaz, Marcus Schaemann
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Patent number: 9787191Abstract: An example relates to a method for operating a converter comprising (i) determining whether a valley for switching the converter in a quasi-resonant mode is available within a predetermined time range; (ii) selecting the valley if it is available within the predetermined time range; and (iii) changing the mode for operating the converter if the valley is not available within the predetermined time range.Type: GrantFiled: July 8, 2015Date of Patent: October 10, 2017Assignee: Infineon Technologies Austria AGInventors: Jens Barrenscheen, Martin Krueger, Marcus Schaemann, Ali Fawaz
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Publication number: 20170155316Abstract: In accordance with an embodiment, a method of operating a power system includes operating a power converter at a first output power, monitoring a first input voltage at an input port of the power converter. The method further includes upon detecting that the first input voltage drops below a first pre-determined voltage threshold, reducing the first output power of the power converter to a second output power lower than the first output power, and suspending operation of the power converter after the reducing the first output power of the power converter.Type: ApplicationFiled: November 30, 2015Publication date: June 1, 2017Inventors: Ali Fawaz, Marcus Schaemann
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Patent number: 9558666Abstract: A system and method for avoiding collisions in a traffic intersection using radar sensors is disclosed. The system detects the location, speed, size, and direction of travel of objects, including vehicles and vulnerable road users, in and approaching a traffic intersection. Using this information, trajectories for all objects are determined, and, if a likelihood of a collision is determined, one or more traffic signal transitions are delayed in an attempt to avoid the collision.Type: GrantFiled: December 2, 2014Date of Patent: January 31, 2017Assignee: Robert Bosch GmbHInventors: Christer Jansson, Shuvo Bhattacharjee, Hirak Chanda, Ankit Shah, Troy McCormick, Ali Fawaz, Anthony Farrell
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Publication number: 20170012537Abstract: An example relates to a method for operating a converter comprising a primary side of a transformer and a secondary side of the transformer, wherein a switching element is used for conveying energy from the primary side to the secondary side, the method comprising (i) determining a voltage drop across the primary side of the transformer; (ii) determining at least one additional voltage drop across at least one component of the converter's primary side; and (iii) determining an input voltage at the converter via the voltage drops.Type: ApplicationFiled: July 8, 2015Publication date: January 12, 2017Inventors: Marcus Schaemann, Robert Pizzuti, Ali Fawaz
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Publication number: 20170012538Abstract: An example relates to a method for operating a converter comprising (i) determining whether a valley for switching the converter in a quasi-resonant mode is available within a predetermined time range; (ii) selecting the valley if it is available within the predetermined time range; and (iii) changing the mode for operating the converter if the valley is not available within the predetermined time range.Type: ApplicationFiled: July 8, 2015Publication date: January 12, 2017Inventors: Jens Barrenscheen, Martin Krüger, Marcus Schaemann, Ali Fawaz
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Publication number: 20160155334Abstract: A system and method for avoiding collisions in a traffic intersection using radar sensors is disclosed. The system detects the location, speed, size, and direction of travel of objects, including vehicles and vulnerable road users, in and approaching a traffic intersection. Using this information, trajectories for all objects are determined, and, if a likelihood of a collision is determined, one or more traffic signal transitions are delayed in an attempt to avoid the collision.Type: ApplicationFiled: December 2, 2014Publication date: June 2, 2016Inventors: Christer Jansson, Shuvo Bhattacharjee, Hirak Chanda, Ankit Shah, Troy McCormick, Ali Fawaz, Anthony Farrell
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Patent number: 9313851Abstract: Methods, devices, and circuits are disclosed for regulating a first parameter of one or more LEDs. The methods, devices, and circuits further disclose switching, in response to an indication of a dimmer interface, from regulating the first parameter of the one or more LEDs to regulating a second parameter below a light generation threshold of the one or more LEDs, wherein switching from regulating the first parameter to regulating the second parameter causes the one or more LEDs to enter a non-light generation mode.Type: GrantFiled: May 19, 2014Date of Patent: April 12, 2016Assignee: Infineon Technologies AGInventors: Ali Fawaz, Robert Pizzuti, Marcus Schaemann
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Publication number: 20150334800Abstract: Methods, devices, and circuits are disclosed regulating a first parameter of one or more LEDs. The methods, devices, and circuits may further be disclosed switching, in response to an indication of a dimmer interface, from regulating the first parameter of the one or more LEDs to regulating a second parameter below a light generation threshold of the one or more LEDs, and switching from regulating the first parameter to regulating the second parameter causes the one or more LEDs to enter a non-light generation mode.Type: ApplicationFiled: May 19, 2014Publication date: November 19, 2015Applicants: INFINEON TECHNOLOGIES NORTH AMERICA CORP., Infineon Technologies AGInventors: Ali Fawaz, Robert Pizzuti, Marcus Schaemann
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Patent number: 8654484Abstract: A power supply including a switching voltage regulator detects a peak power fault if a peak power limit is exceeded during a switching cycle of the voltage regulator. A second fault condition exists if a second power limit, lower than the peak power limit, is exceeded over a second time period, longer than the first time period. The switching voltage regulator is stopped in response to either the first or the second fault condition. Responsive to the second fault condition, the switching voltage regulator may be stopped until AC power is cycled or until a predetermined time period has elapsed.Type: GrantFiled: November 16, 2010Date of Patent: February 18, 2014Assignee: Silicon Laboratories Inc.Inventors: Pavel Konecny, Ali Fawaz
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Publication number: 20120063037Abstract: A power supply including a switching voltage regulator detects a peak power fault if a peak power limit is exceeded during a switching cycle of the voltage regulator. A second fault condition exists if a second power limit, lower than the peak power limit, is exceeded over a second time period, longer than the first time period. The switching voltage regulator is stopped in response to either the first or the second fault condition. Responsive to the second fault condition, the switching voltage regulator may be stopped until AC power is cycled or until a predetermined time period has elapsed.Type: ApplicationFiled: November 16, 2010Publication date: March 15, 2012Inventors: Pavel Konecny, Ali Fawaz
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Patent number: 6291944Abstract: An electronic ballast having a through-lamp ground fault sensor that may also function as an end-of-lamp-life sensor is disclosed. The electronic ballast has an inverter that receives power from a dc power supply, and delivers a high-frequency output voltage to a resonant tank circuit through a dc blocking capacitor. The ground fault sensor includes a filter circuit connected to a voltage sensor circuit. An input terminal of the filter circuit is connected to the resonant tank so as to be in communication with a voltage signal that exists between a ballast output terminal and a dc power supply output terminal. The filter provides a filtered voltage signal by attenuating high frequency ac voltage components of the voltage signal, and passing low frequency ac voltage components, such as a 60 Hz signal, and possibly also passing a dc voltage component. A through-lamp ground fault will generate a voltage signal at the power line frequency.Type: GrantFiled: May 5, 2000Date of Patent: September 18, 2001Assignee: Universal Lighting Technologies, Inc.Inventors: Bryce L. Hesterman, Ali Fawaz