Patents by Inventor Alwin Veser
Alwin Veser 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: 7884554Abstract: A starting circuit arrangement for starting at least one discharge lamp by applying an electrical starting voltage pulse to the discharge lamp, the starting circuit arrangement has: at least one source circuit arrangement for providing an electrical primary voltage pulse, at least one starting circuit for providing the starting voltage pulse, and at least one inductive coupling element for inductively coupling-in the primary voltage pulse into the starting circuit for the purpose of generating the starting voltage pulse. The inductive coupling element has a transformation ratio for a voltage transformation which is selected from the range of from 1/25 to 1/400. A method for starting a discharge lamp by applying a starting voltage pulse using the starting circuit arrangement is also disclosed.Type: GrantFiled: July 27, 2006Date of Patent: February 8, 2011Assignee: OSRAM Gesellschaft mit beschraenkter HaftungInventors: Martin Honsberg-Riedl, Burkhard Ulrich, Alwin Veser
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Patent number: 7586266Abstract: The present invention relates to a driver circuit for an HID lamp having a circuit arrangement for applying a radiofrequency signal for the purpose of starting the lamp and for applying a low-frequency signal for the purpose of operating the lamp after starting, the driver circuit being designed to drive the HID lamp, immediately after starting, using a radiofrequency signal for a period of time, the period of time being variable and depending on at least one operating parameter for the lamp which is set after starting. It also relates to a corresponding method for operating an HID lamp.Type: GrantFiled: July 11, 2005Date of Patent: September 8, 2009Assignee: Osram Gesellschaft mit beschraenkter HaftungInventors: Christian Breuer, Andreas Huber, Simon Lankes, Alwin Veser
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Publication number: 20090153071Abstract: The invention specifies a starting circuit arrangement for starting at least one discharge lamp by applying an electrical starting voltage pulse to the discharge lamp, the starting circuit arrangement having the following features: at least one source circuit arrangement for providing an electrical primary voltage pulse, at least one starting circuit for providing the starting voltage pulse, and at least one inductive coupling element for inductively coupling-in the primary voltage pulse into the starting circuit for the purpose of generating the starting voltage pulse. The starting circuit arrangement is characterized by the fact that the inductive coupling element has a transformation ratio for a voltage transformation which is selected from the range of from 1/25 to 1/400.Type: ApplicationFiled: July 27, 2006Publication date: June 18, 2009Inventors: Martin Honsberg-Riedl, Burkhard Ulrich, Alwin Veser
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Publication number: 20060017405Abstract: The present invention relates to a driver circuit for an HID lamp having a circuit arrangement for applying a radiofrequency signal for the purpose of starting the lamp and for applying a low-frequency signal for the purpose of operating the lamp after starting, the driver circuit being designed to drive the HID lamp, immediately after starting, using a radiofrequency signal for a period of time, the period of time being variable and depending on at least one operating parameter for the lamp which is set after starting. It also relates to a corresponding method for operating an HID lamp.Type: ApplicationFiled: July 11, 2005Publication date: January 26, 2006Applicant: PATENT-TREUHAND-GESELISCHAFT FUR ELEKTRISHCH GLUHLAMPEN MBHInventors: Christian Breuer, Andreas Huber, Simon Lankes, Alwin Veser
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Patent number: 6525491Abstract: Flickering phenomena in gas discharge lamps are undesired in projection technology, in particular. According to the invention, the problem is solved by setting a lamp operation which does not form a focal spot. A specific control structure which includes a cascade structure and feedforward control is proposed for implementing this operation.Type: GrantFiled: April 10, 2001Date of Patent: February 25, 2003Assignee: Patent-Treuhand-Gesellschaft fuer Elektrische GluehlampenInventors: Andreas Huber, Josef Osterried, Alwin Veser, Wolfram Graser
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Publication number: 20020185307Abstract: The present invention relates to a printed circuit board for soldering and/or loading electronic components on one or both sides, the individual components having at least one electrically conducting contact element for insertion into at least one corresponding contact opening (12) penetrating through the printed circuit board (10), the contact opening (12) of the printed circuit board (10) being of a slit-shaped form.Type: ApplicationFiled: April 11, 2002Publication date: December 12, 2002Applicant: Patent-Treuhand-Gesellschaft Fur elektrische Gluhlampen mgHInventors: Axel Gurel, Andreas Huber, Peter Niedermeier, Bernhard Reiter, Alwin Veser
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Patent number: 6323600Abstract: An electrical circuit arrangement for producing pulsed-voltage sequences for the operation of discharges which are impeded dielectrically comprises a series circuit formed from a tuned circuit inductance (TR2-A) and a controlled switch (T1), a pulse generator (OS) which drives the switch (T1), an electrical valve (D1) which is connected in parallel with the switch (T1), a tuned circuit capacitance (C2) which is likewise connected in parallel with the switch (T1), a means (TR2-B, a″, b″) for coupling a lamp (La1) to at least one electrode which is impeded dielectrically, and, optionally, a buffer and feedback capacitor (C1) which is connected in parallel with the series circuit formed by the tuned circuit inductance (TR2-A) and the switch (T1).Type: GrantFiled: March 17, 1999Date of Patent: November 27, 2001Assignee: Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbHInventors: Eugen Statnic, Alwin Veser, Bernhard Ertl
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Publication number: 20010030515Abstract: Flickering phenomena in gas discharge lamps are undesired in projection technology, in particular. According to the invention, the problem is solved by setting a lamp operation which does not form a focal spot. A specific control structure which includes a cascade structure and feedforward control is proposed for implementing this operation.Type: ApplicationFiled: April 10, 2001Publication date: October 18, 2001Applicant: Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbHInventors: Andreas Huber, Josef Osterried, Alwin Veser, Wolfram Graser
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Patent number: 5831394Abstract: An electrical circuit arrangement for the production of voltage pulse sequences, in particular for the operation of dielectrically impeded discharges, has a charging circuit, with a charging capacitor (C2), fed with an input voltage (U.sub.E), a discharge and pulse circuit with a fast controllable switch, in particular with an IGBT (T1), which is connected to a clocked drive circuit (A), and a pulse transformer (TR1) with a load (L) connected thereto, and a feedback circuit with a feedback rectifier, for example semiconductor diodes (D3-D4) and a feedback energy accumulation circuit, for example a buffer capacitor (C1) connected in parallel with the input of the charging circuit. During each phase in which the IGBT is on, the electrical energy stored in the charging capacitor (C2) is transferred via the pulse transformer (TR1) to the load (L).Type: GrantFiled: December 12, 1996Date of Patent: November 3, 1998Assignee: Patent-Treuhand-Gesellschaft fur elektrische Gluehlampen mbHInventors: Andreas Huber, Alwin Veser, Gunther Hirschmann
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Patent number: 5770924Abstract: To largely, or entirely inhibit glow discharges during the start-up or run-on phase (Ta) of a high-pressure discharge lamp, the lamp is operated in a second time period (T2) immediately after ignition (T1) with continuous direct current during which the electrode of the lamp which then functions as an anode has reached emission temperature; in a third time period (T3), the polarity of the direct current is reversed and the other electrode, which now will function as an anode, is heated to emission temperature; thereafter, alternating current energy is supplied to both electrodes, typically in frequencies between 90 and 150 Hz. A suitable second time period (T2) can be about 2 to 21/2 second, the third time period (T3) being shorter. The total warm-up time may extend to a minute or more; current being supplied during the second, third and subsequent periods is usually higher, for example by a factor of 1.5 of the normal or rated operating current.Type: GrantFiled: March 4, 1996Date of Patent: June 23, 1998Assignee: Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbHInventors: Josef Osterried, Andreas Huber, Alwin Veser, Frank Hansmann
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Patent number: 5589740Abstract: To operate one or more serially connected low-pressure discharge lamps, tcally fluorescent lamps, a preheating circuit is provided to preheat the electrodes of the lamps (E1, E2, E3, E4), which changes from low-impedance to high-impedance state after the lamps have been preheated by controlling a semiconductor switch (Q3) in the heating circuit. In accordance with the invention, to eliminate reliance on the resistances of the lamp filaments themselves, which are subject to variation from lamp-to-lamp due to manufacturing tolerances, and later on, to changes due to aging of the lamp, and to provide for reliable switching of the semiconductor switch, a sensing impedance element (Z), which may be an ohmic resistor or a capacitor (Z', Z"), is serially connected to the switching path of the semiconductor switch (Q3) which, typically, is a field effect transistor (FET).Type: GrantFiled: June 27, 1995Date of Patent: December 31, 1996Assignee: Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbHInventors: Bernd Rudolph, Alwin Veser