Patents by Inventor Thomas Mudra
Thomas Mudra 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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Publication number: 20240091395Abstract: A manually guided device has an electrically insulating housing in which power electronics operated by high voltage are accommodated. The device is used in particular for treating an object, in particular by way of plasma. Increased comfort and simplified manufacturing of the device result from an electrically conductive equipotential bonding device which is electrically isolated from the power electronics and which forms, at least in part, an outer surface of the device with which a user's hand is in contact during use.Type: ApplicationFiled: November 16, 2021Publication date: March 21, 2024Inventors: Stefan Hassfurter, Thomas Mudra, Tobias Wende, Julius Geis
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Patent number: 8502458Abstract: In various embodiments, a dimmable operating device for the combined operation of a gas discharge lamp and a semiconductor light source is provided. The dimmable operating device may be configured such that only the semiconductor light source is operated in the lower dimming range and only the gas discharge lamp is operated in the upper dimming range, and at the changeover points at which one sort of light source out of the semiconductor light source and the gas discharge lamp is switched off or on, at the same time a jump in power is applied to the other light source out of the semiconductor light source and the gas discharge lamp, with the result that the human eye cannot perceive, or can only perceive with difficulty, the changeover point.Type: GrantFiled: February 26, 2008Date of Patent: August 6, 2013Assignee: Osram Gesellschaft Mit Beschraenkter HaftungInventors: Andreas Huber, Thomas Mudra
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Patent number: 8358072Abstract: A circuit arrangement is provided for operating a fluorescent lamp with a first and a second filament, the circuit arrangement including a heater for the first and the second filament, wherein the circuit arrangement furthermore includes: an apparatus for storing at least one threshold value for at least one operational parameter of the fluorescent lamp; an apparatus for determining the value of the at least one operational parameter; and a control apparatus, which is configured to activate the heater for the first and the second filament for a predeterminable period of time in the event of the at least one threshold value for the at least one operational parameter being exceeded by the determined value of the at least one operational parameter.Type: GrantFiled: May 4, 2007Date of Patent: January 22, 2013Assignee: Osram Gesellschaft mit beschraenkter HaftungInventor: Thomas Mudra
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Patent number: 8067899Abstract: A circuit arrangement for operating at least one first and second lamp each provided with a first and second coil electrode includes a first and second terminal for the first coil electrode of the first lamp, a first and second terminal for the second coil electrode of the first lamp, a first and second terminal for the first coil electrode of the second lamp, a first and second terminal for the second coil electrode of the second lamp, at least one supply connection for supplying voltage to the respective first coil electrode of the at least one first and second lamp, and at least one preheating device for the respective first coil electrode of the at least one first and second lamp. The second terminal of the first coil electrode of the first lamp is coupled to the second terminal of the first coil electrode of the second lamp while the preheating device encompasses a first preheating inductor and a second preheating inductor.Type: GrantFiled: December 5, 2006Date of Patent: November 29, 2011Assignee: Osram AGInventors: Werner Longhino, Andreas Mitze, Thomas Mudra, Markus Ziegler
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Publication number: 20100134012Abstract: A circuit arrangement is provided for operating a fluorescent lamp with a first and a second filament, the circuit arrangement including a heater for the first and the second filament, wherein the circuit arrangement furthermore includes: an apparatus for storing at least one threshold value for at least one operational parameter of the fluorescent lamp; an apparatus for determining the value of the at least one operational parameter; and a control apparatus, which is configured to activate the heater for the first and the second filament for a predeterminable period of time in the event of the at least one threshold value for the at least one operational parameter being exceeded by the determined value of the at least one operational parameter.Type: ApplicationFiled: May 4, 2007Publication date: June 3, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventor: Thomas Mudra
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Publication number: 20100084982Abstract: In various embodiments, a dimmable operating device for the combined operation of a gas discharge lamp and a semiconductor light source is provided. The dimmable operating device may be configured such that only the semiconductor light source is operated in the lower dimming range and only the gas discharge lamp is operated in the upper dimming range, and at the changeover points at which one sort of light source out of the semiconductor light source and the gas discharge lamp is switched off or on, at the same time a jump in power is applied to the other light source out of the semiconductor light source and the gas discharge lamp, with the result that the human eye cannot perceive, or can only perceive with difficulty, the changeover point.Type: ApplicationFiled: February 26, 2008Publication date: April 8, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Andreas Huber, Thomas Mudra
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Publication number: 20100084986Abstract: Various embodiments provide a circuit arrangement with two or more switching inputs for progressively dimming one or more lighting means, the switching inputs being capable of being current-conducting or non-current-conducting, wherein the circuit arrangement is configured such that it, owing to the switching combination of the switching inputs, provides a dimming signal at the output, which dimming signal can be processed by the operating devices connected thereto and dims the lighting means to corresponding light levels.Type: ApplicationFiled: March 9, 2007Publication date: April 8, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Werner Longhino, Thomas Mudra
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Publication number: 20100072918Abstract: A circuit arrangement for operating at least one first and second lamp each provided with a first and second coil electrode includes a first and second terminal for the first coil electrode of the first lamp, a first and second terminal for the second coil electrode of the first lamp, a first and second terminal for the first coil electrode of the second lamp, a first and second terminal for the second coil electrode of the second lamp, at least one supply connection for supplying voltage to the respective first coil electrode of the at least one first and second lamp, and at least one preheating device for the respective first coil electrode of the at least one first and second lamp. The second terminal of the first coil electrode of the first lamp is coupled to the second terminal of the first coil electrode of the second lamp while the preheating device encompasses a first preheating inductor and a second preheating inductor.Type: ApplicationFiled: December 5, 2006Publication date: March 25, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRÄNKTER HAFTUNGInventors: Werner Longhino, Andreas Mitze, Thomas Mudra, Markus Ziegler
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Patent number: 7675242Abstract: An electronic ballast for the operation of a lamp arrangement includes at least one lamp, in particular, a low-pressure discharge lamp and at least one transformer for balancing the lamp currents, whereby the transformer has two windings, provided for one or more lamps of the lamp arrangement. The transformer is embodied as a saturation balancing choke.Type: GrantFiled: December 20, 2005Date of Patent: March 9, 2010Assignee: OSRAM Gesellschaft mit beschraenkter HaftungInventors: Werner Longhino, Thomas Mudra
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Publication number: 20080106215Abstract: An electronic ballast for the operation of a lamp arrangement includes at least one lamp, in particular, a low-pressure discharge lamp and at least one transformer for balancing the lamp currents, whereby the transformer has two windings, provided for one or more lamps of the lamp arrangement. The transformer is embodied as a saturation balancing choke.Type: ApplicationFiled: December 20, 2005Publication date: May 8, 2008Applicant: Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen MBHInventors: Werner Longhino, Thomas Mudra
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Patent number: 7355356Abstract: The invention relates to a circuit arrangement for detecting a crest factor of a lamp current or a lamp operating voltage of an electric lamp (2), the circuit arrangement having a first subcircuit (15), which is designed to determine an averaged value from an input signal applied to the circuit arrangement, having a second subcircuit (16), which is designed to determine a maximum permissible value from the input signal applied to the circuit arrangement and having a comparator circuit (17), which is designed to produce a comparison signal from the output signal of the first subcircuit (15) characterizing the averaged value and from an output signal of the second subcircuit (16) characterizing the maximum permissible crest factor. The invention also relates to a method for detecting such a crest factor. One further aspect of the invention relates to an electronic ballast (1) which has a circuit arrangement (14a, 14b) according to the invention.Type: GrantFiled: June 9, 2006Date of Patent: April 8, 2008Assignee: Patent-Treuhand-Gesellschaft für Elektrische Glühlampen mbHInventor: Thomas Mudra
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Patent number: 7291982Abstract: An apparatus for the closed-loop and open-loop control of filament heating for a lamp, in particular for a fluorescent lamp, has a control loop into which a first filament (W1), an operational-parameter detection element (E), a heating controller (H) and a first actuating element (S1) are connected. The heating poser of the first filament (W1) is detected by means of the operational-parameter detection element (E) and, on the basis of this, a manipulated variable (SG) is determined, by means of which this first filament (W1) is subjected to closed-loop control. Furthermore, at least one second filament (W2 to Wn), which is not connected in the control loop, is controlled on the basis of the determined manipulated variable (SG).Type: GrantFiled: January 24, 2006Date of Patent: November 6, 2007Assignee: Patent-Treuhand-Gesellschaft fur Elektrisch Gluhlampen mbHInventors: Werner Longhino, Andreas Mitze, Thomas Mudra
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Publication number: 20060279231Abstract: The invention relates to a circuit arrangement for detecting a crest factor of a lamp current or a lamp operating voltage of an electric lamp (2), the circuit arrangement having a first subcircuit (15), which is designed to determine an averaged value from an input signal applied to the circuit arrangement, having a second subcircuit (16), which is designed to determine a maximum permissible value from the input signal applied to the circuit arrangement and having a comparator circuit (17), which is designed to produce a comparison signal from the output signal of the first subcircuit (15) characterizing the averaged value and from an output signal of the second subcircuit (16) characterizing the maximum permissible crest factor. The invention also relates to a method for detecting such a crest factor. One further aspect of the invention relates to an electronic ballast (1) which has a circuit arrangement (14a, 14b) according to the invention.Type: ApplicationFiled: June 9, 2006Publication date: December 14, 2006Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBHInventor: Thomas Mudra
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Publication number: 20060164019Abstract: An apparatus for the closed-loop and open-loop control of filament heating for a lamp, in particular for a fluorescent lamp, has a control loop into which a first filament (W1), an operational-parameter detection element (E), a heating controller (H) and a first actuating element (S1) are connected. The heating poser of the first filament (W1) is detected by means of the operational-parameter detection element (E) and, on the basis of this, a manipulated variable (SG) is determined, by means of which this first filament (W1) is subjected to closed-loop control. Furthermore, at least one second filament (W2 to Wn), which is not connected in the control loop, is controlled on the basis of the determined manipulated variable (SG).Type: ApplicationFiled: January 24, 2006Publication date: July 27, 2006Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBHInventors: Werner Longhino, Andreas Mitze, Thomas Mudra