Patents by Inventor Erik Svend Christiansen
Erik Svend Christiansen 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: 9012820Abstract: A method for dynamic wave form correction includes providing an input power signal by an AC power source and rectifying the input power signal by a frequency converter into a half waves signal whose half wave is delimited by two subsequent zero-crossings. The time lag between the two zero-crossings defines a half wave duration. The frequency converter converts the half waves signal into a working current signal for supplying an induction heating device. In a frequency shifting operation, the frequency of the working signal is first increased from a first base frequency to a maximum frequency, and is then decreased to a second base frequency different from the first base frequency within a time period smaller than the half wave duration. A zero crossing of the half wave signal is passed within the frequency shifting operation. An arrangement for dynamic wave form correction of a power supply is also provided.Type: GrantFiled: March 3, 2009Date of Patent: April 21, 2015Assignee: Electrolux Home Products Corporation N.V.Inventors: Erik Svend Christiansen, Laurent Jeanneteau, Alex Viroli, Massimo Zangoli, Thibaut Rigolle, Michael Herzog
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Patent number: 8884196Abstract: The invention relates to a cooking device (1, 12) for a cooking container (10, 11), a) wherein the cooking device (1, 12) comprises at its lower surface (20) a curved, especially concave, cooking surface (2) adapted to the form of the cooking container (10, 11), b) wherein the cooking surface (2) comprises a first (2a) and a second (2b) partial surface, c) wherein the cooking container (10, 11) comprises a first area (20a) adjacent to the first partial surface (2a) and a second area (20b) adjacent to the second partial surface (2b), d) wherein the first area (20a) is heated by a first induction element (3) and the second area (20b) is heated by a second induction element (4), e) wherein each induction element (3, 4) comprises an individual heat sensor (3d, 4d) and f) wherein at least the second induction element (4) can be controlled independently from the first induction element (3).Type: GrantFiled: May 20, 2009Date of Patent: November 11, 2014Assignee: Electrolux Home Products Corporation N.V.Inventors: Laurent Jeanneteau, Thibaut Rigolle, Erik Svend Christiansen, Massimo Zangoli
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Patent number: 8779338Abstract: The present invention relates to a method for controlling a cooking device, in particular an induction hob. The method comprises the steps of activating an overload power (POVER) for at least one electric or electronic component of the cooking device by using at least two synchronized generators, which overload power (POVER) is greater than a standard maximum power (PMAX), deactivating the overload power (POVER) after a predetermined period (?t), and operating the cooking device at a power (P), which is at most the standard maximum power (PMAX). The standard maximum power (PMAX) is provided for a permanent operation of the cooking device. The overload power (POVER) and/or the period (?t) are determined by a function depending on at least the overload power (POVER) and the period (?t). The present invention relates further to a corresponding apparatus for controlling a cooking device, in particular an induction hob.Type: GrantFiled: October 8, 2008Date of Patent: July 15, 2014Assignee: Electrolux Home Products Corporation N.V.Inventors: Laurent Jeanneteau, Erik Svend Christiansen, Thibaut Rogolle, Massimo Zangoli, Mario Barocci
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Patent number: 8736248Abstract: The present invention relates to a detection circuit for detecting that a power supply unit is connected to a wrong supply voltage. Said detection circuit comprises a first voltage divider (24, 26, 28) connected to the output terminals (20, 50) of a rectifier (16) of the power supply unit, a second voltage divider (26, 32) connected to a first power input terminal (10) of the power supply unit and to one of the output terminals (20, 50) of the rectifier (16), and a circuit breaker (14) connected to the first power input terminal (10) of the power supply unit and to an input terminal of the rectifier (16), wherein at least one partial voltage of each voltage divider (24, 26, 28; 26, 32) is used a signal (22, 46) for identifying the wrong supply voltage. The invention relates further to a method for detecting that a power supply unit is connected to a wrong supply voltage.Type: GrantFiled: April 30, 2008Date of Patent: May 27, 2014Assignee: Electrolux Home Products Corporation N.V.Inventors: Laurent Jeanneteau, Roberto Ferrozzi, Erik Svend Christiansen, Mario Barocci
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Publication number: 20110180530Abstract: The invention relates to a cooking device (1, 12) for a cooking container (10, 11), a) wherein the cooking device (1, 12) comprises at its lower surface (20) a curved, especially concave, cooking surface (2) adapted to the form of the cooking container (10, 11), b) wherein the cooking surface (2) comprises a first (2a) and a second (2b) partial surface, c) wherein the cooking container (10, 11) comprises a first area (20a) adjacent to the first partial surface (2a) and a second area (20b) adjacent to the second partial surface (2b), d) wherein the first area (20a) is heated by a first induction element (3) and the second area (20b) is heated by a second induction element (4), e) wherein each induction element (3, 4) comprises an individual heat sensor (3d, 4d) and f) wherein at least the second induction element (4) can be controlled independently from the first induction element (3).Type: ApplicationFiled: May 20, 2009Publication date: July 28, 2011Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Laurent Jeanneteau, Thibaut Rigolle, Erik Svend Christiansen, Massimo Zangoli
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Publication number: 20110036832Abstract: The invention relates to a method for dynamic wave form correction of a power supply of an induction heating device (3), a) where an input power signal (Uin), especially an input voltage signal, comprising waves with an input power frequency (fin) is provided by an AC power source (1), b) where a frequency converter (2) rectifies the input power signal (Uin) into a half waves signal (Uh), especially a half wave voltage signal, b1) where a half wave of the half waves signal is delimited by two subsequent zero-crossings (t?, t1;t1, t2; t2, t3), b2) where the time lag between the two zero-crossings defines a half wave duration (th), c) where the frequency converter (2) further converts the half waves signal (Uh) into to a working signal (Iw), especially a working current signal, for supplying the induction heating device (3), d) where in a frequency shifting operation (5) a working frequency (fw) of the working signal (Iw) is first increased from a first working base frequency (f1) to a maximum frequency of (fmaType: ApplicationFiled: March 3, 2009Publication date: February 17, 2011Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Erik Svend Christiansen, Laurent Jeanneteau, Alex Viroli, Massinmo Zangoli, Thibaut Rigolle, Michael Herzog
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Publication number: 20100252549Abstract: The present invention relates to a method for controlling a cooking device, in particular an induction hob. The method comprises the steps of activating an overload power (POVER) for at least one electric or electronic component of the cooking device by using at least two synchronized generators, which overload power (POVER) is greater than a standard maximum power (PMAX), deactivating the overload power (POVER) after a predetermined period (?t), and operating the cooking device at a power (P), which is at most the standard maximum power (PMAX). The standard maximum power (PMAX) is provided for a permanent operation of the cooking device. The overload power (POVER) and/or the period (?t) are determined by a function depending on at least the overload power (POVER) and the period (?t). The present invention relates further to a corresponding apparatus for controlling a cooking device, in particular an induction hob.Type: ApplicationFiled: October 8, 2008Publication date: October 7, 2010Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Laurent Jeanneteau, Erik Svend Christiansen, Thibaut Rogolle, Massimo Zangoli, Mario Barocci
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Publication number: 20100207656Abstract: The present invention relates to a detection circuit for detecting that a power supply unit is connected to a wrong supply voltage. Said detection circuit comprises a first voltage divider (24, 26, 28) connected to the output terminals (20, 50) of a rectifier (16) of the power supply unit, a second voltage divider (26, 32) connected to a first power input terminal (10) of the power supply unit and to one of the output terminals (20, 50) of the rectifier (16), and a circuit breaker (14) connected to the first power input terminal (10) of the power supply unit and to an input terminal of the rectifier (16), wherein at least one partial voltage of each voltage divider (24, 26, 28; 26, 32) is used a signal (22, 46) for identifying the wrong supply voltage. The invention relates further to a method for detecting that a power supply unit is connected to a wrong supply voltage.Type: ApplicationFiled: April 30, 2008Publication date: August 19, 2010Applicant: ELECTROLUX HOME PRODUCTS CORPORATION N.V.Inventors: Laurent Jeanneteau, Roberto Ferrozzi, Erik Svend Christiansen, Mario Barocci