Patents by Inventor Maximilian Schmidl
Maximilian Schmidl 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: 11160151Abstract: A circuit arrangement for operating a load includes a primary-side switched-mode converter with galvanic isolation of input and output voltage, having: a primary circuit, a secondary circuit and a power transformer, wherein: a first inductor and a second inductor, the first inductor being arranged in the secondary circuit in order to pass the current generated by the transformer when the energy is transferred to the secondary circuit, and the second inductor being interconnected in a measuring circuit. The second inductor is spatially arranged in a stray magnetic field generated by the first inductor; the measuring circuit has an output at which a measuring voltage is output, and the control device is connected to the output of the measuring circuit in order to determine a corresponding current flow from the output measuring voltage, and is configured to control the clocked operation of the switch depending on the current flow determined.Type: GrantFiled: February 11, 2021Date of Patent: October 26, 2021Assignee: ABL IP HOLDING LLCInventors: Joachim Muehlschlegel, Maximilian Schmidl
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Publication number: 20210298149Abstract: A circuit arrangement for operating a load includes a primary-side switched-mode converter with galvanic isolation of input and output voltage, having: a primary circuit, a secondary circuit and a power transformer, wherein: a first inductor and a second inductor, the first inductor being arranged in the secondary circuit in order to pass the current generated by the transformer when the energy is transferred to the secondary circuit, and the second inductor being interconnected in a measuring circuit. The second inductor is spatially arranged in a stray magnetic field generated by the first inductor; the measuring circuit has an output at which a measuring voltage is output, and the control device is connected to the output of the measuring circuit in order to determine a corresponding current flow from the output measuring voltage, and is configured to control the clocked operation of the switch depending on the current flow determined.Type: ApplicationFiled: February 11, 2021Publication date: September 23, 2021Inventors: Joachim MUEHLSCHLEGEL, Maximilian SCHMIDL
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Patent number: 10143049Abstract: In various embodiments, an electronic operating device for light sources is provided. The electronic operating device may include an input part for inputting an input voltage and an output part for outputting an output voltage and an output current for the light sources. The electronic operating device is configured to operate the output part as a voltage source for a period of time after the input voltage has been applied, and subsequently to operate the output part as a current source after this period of time.Type: GrantFiled: October 19, 2017Date of Patent: November 27, 2018Assignee: OSRAM GMBHInventors: Ralf Berchtold, Maximilian Schmidl
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Publication number: 20180116018Abstract: In various embodiments, an electronic operating device for light sources is provided. The electronic operating device may include an input part for inputting an input voltage and an output part for outputting an output voltage and an output current for the light sources. The electronic operating device is configured to operate the output part as a voltage source for a period of time after the input voltage has been applied, and subsequently to operate the output part as a current source after this period of time.Type: ApplicationFiled: October 19, 2017Publication date: April 26, 2018Inventors: Ralf Berchtold, Maximilian Schmidl
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Patent number: 9681505Abstract: A circuit arrangement includes a converter having a converter switch and a driver for the converter switch. The driver includes an interface coupling to a dimming apparatus supplying a dimming value. The driver provides an RF signal with a duty ratio at the output of the driver. The driver modifies the RF signal by superposition of a PWM signal such that, in correlation with the supplied dimming value, a predefinable number of periods of the RF signal is chopped from the RF signal. The driver is configured to reduce the duty ratio of the RF signal during at least one predefinable period of the RF signal in order to adjust levels of dimming which correspond to dimming values which are between a first and a second dimming value which differ from one another by at least one period of the RF signal.Type: GrantFiled: May 19, 2014Date of Patent: June 13, 2017Assignee: OSRAM GmbHInventors: Maximilian Schmidl, Joachim Muehlschlegel
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Publication number: 20140361704Abstract: A circuit arrangement includes a converter having a converter switch and a driver for the converter switch. The driver includes an interface coupling to a dimming apparatus supplying a dimming value. The driver provides an RF signal with a duty ratio at the output of the driver. The driver modifies the RF signal by superposition of a PWM signal such that, in correlation with the supplied dimming value, a predefinable number of periods of the RF signal is chopped from the RF signal. The driver is configured to reduce the duty ratio of the RF signal during at least one predefinable period of the RF signal in order to adjust levels of dimming which correspond to dimming values which are between a first and a second dimming value which differ from one another by at least one period of the RF signal.Type: ApplicationFiled: May 19, 2014Publication date: December 11, 2014Applicant: OSRAM GmbHInventors: Maximilian Schmidl, Joachim Muehlschlegel
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Patent number: 8760069Abstract: A method for operating a high pressure discharge lamp, with the high pressure discharge lamp being operated by a current inverter with a square wave lamp current having a positive phase with positive current flow and a negative phase with negative current flow, and with the current inverter being controlled by a control arrangement wherein the method comprises the steps of measuring a value for the positive current flow representing the lamp wattage or the square wave lamp current, measuring a value for the negative current flow representing the lamp wattage or the square wave lamp current; calculating a predetermined setpoint value in each case from a guide variable of a lamp wattage or of the square wave lamp current and the measured value for the phase with positive current flow; calculating a predetermined setpoint value in each case from a guide variable of a lamp wattage or of the square wave lamp current and the measured value for the phase with negative current flow; and outputting the two predeterminType: GrantFiled: October 23, 2008Date of Patent: June 24, 2014Assignee: OSRAM Gesellschaft Mit Beschrankter HaftungInventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Patent number: 8618739Abstract: A circuit arrangement for operating discharge lamps is provided with an input, to which an AC system voltage from a power supply system can be connected, an output, to which at least one discharge lamp can be connected, a backup capacitance, which is arranged between the input and the output, and a switch, which is in a charging current path of the backup capacitance. The circuit arrangement may include a driver configured to clock the switch for a predetermined period of time when the circuit arrangement is switched on for periodically interrupting the charging current path of the backup capacitance.Type: GrantFiled: May 4, 2010Date of Patent: December 31, 2013Assignee: OSRAM Gesellschaft mit beschraenkter HaftungInventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Patent number: 8531122Abstract: In various embodiments, a circuit arrangement may include a voltage-measuring device embodied to measure an output voltage, wherein the voltage-measuring device is embodied to provide at its output a signal which is correlated with the measured output voltage, wherein the voltage-measuring device is coupled to a control device for the purpose of transmitting said signal to the control device, and wherein the control device is embodied to vary an off-time as a function of the measured output voltage.Type: GrantFiled: September 17, 2008Date of Patent: September 10, 2013Assignee: OSRAM Gesellschaft mit beschraenkter HaftungInventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Patent number: 8492994Abstract: A method for making a lamp wattage available for operating at least one gas discharge lamp depending on a dimming signal which is input into a wattage factor correction circuit, having a switch element that is switched on clocked by a switch-on time, wherein the wattage factor correction circuit emits an intermediate circuit voltage which in turn is input into a converter that makes the lamp wattage available, comprising the steps of: in an operating phase in which the dimming signal has no phase leading edge and no phase trailing edge, the wattage factor correction circuit and the converter are regulated independently of each other using a separate regulating circuit in each case; and in an operating phase in which the dimming signal has a phase leading edge or a phase trailing edge, the two independent regulating circuits are coupled to each other via a higher-order third regulating circuit such that the lamp wattage of the converter is adjusted such that the switch-on time of the switch element in the wattType: GrantFiled: October 22, 2008Date of Patent: July 23, 2013Assignee: OSRAM Gesellschaft mit beschrankter HaftungInventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Patent number: 8450875Abstract: An apparatus for controlling at least one electrical load may include at least one pushbutton; a communications interface for communicating with the loads, the loads being switched on and off by the at least one pushbutton via the communications interface; and a first controlled switch with control logic, said switch being connected between the loads and a power supply, and the first controlled switch isolates the power supply from the loads as soon as all of the loads have been disconnected via the communications interface.Type: GrantFiled: December 21, 2007Date of Patent: May 28, 2013Assignee: OSRAM Gesellschaft mit beschraenkter HaftungInventors: Thomas Rossmanith, Maximilian Schmidl
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Publication number: 20120286693Abstract: A circuit assembly for operating a discharge lamp (5) comprising a full-bridge assembly (1), which supplies the discharge lamp (5), wherein the circuit assembly can operate the discharge lamp (5) at a low-frequency and at a high-frequency voltage, and the circuit assembly is configured: to operate the discharge lamp (5) directly after starting the lamp at a high-frequency voltage, and to operate the discharge lamp (5) above a predetermined lamp voltage (UT) at a low-frequency voltage, wherein the full-bridge assembly (1) always operates in discontinuous conduction mode.Type: ApplicationFiled: November 15, 2010Publication date: November 15, 2012Inventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Publication number: 20120013263Abstract: An electronic operating device for a gas discharge lamp having a voltage transformer which converts an input voltage into an intermediate circuit voltage, and an inverter with a lamp inductor and a bridge circuit with at least two switches which converts the intermediate circuit voltage into a lamp voltage, the operating device being designed to adjust the intermediate circuit voltage present between the DC voltage transformer and the inverter to a predetermined value which is dependent on the lamp state. Also disclosed is a method for operating an operating device.Type: ApplicationFiled: June 13, 2011Publication date: January 19, 2012Applicant: OSRAM Gesellschaft mit beschrankter HaftungInventors: Jürgen Fischer, Walter Limmer, Maximilian Schmidl, Hannes Wagner
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Patent number: 8026630Abstract: A system and method for supplying voltage to electrical loads in the onboard electrical system of a motor vehicle are provided. The onboard electrical system consists of at least two onboard electrical system regions. The first onboard electrical system region has an electric generator, a vehicle battery, as well as one or more first electrical loads. The second onboard electrical system region has a double-layer capacitor or a so-called supercap and one or more second electrical loads. Between the two onboard electrical system regions, a blocking device is provided, in particular, a semiconductor diode or a power switch, which permits a current flow from the first onboard electrical system region into the second electrical system region and largely prevents a reverse current flow from the second onboard electrical system region into the first onboard electrical system region.Type: GrantFiled: February 3, 2009Date of Patent: September 27, 2011Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Andreas Broesse, Dieter Polenov, Hartmut Proebstle, Markus Fuchs, Michael Roesler, Maximilian Schmidl
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Publication number: 20110221354Abstract: A method for making a lamp wattage available for operating at least one gas discharge lamp depending on a dimming signal which is input into a wattage factor correction circuit, having a switch element that is switched on clocked by a switch-on time, wherein the wattage factor correction circuit emits an intermediate circuit voltage which in turn is input into a converter that makes the lamp wattage available, comprising the steps of: in an operating phase in which the dimming signal has no phase leading edge and no phase trailing edge, the wattage factor correction circuit and the converter are regulated independently of each other using a separate regulating circuit in each case; and in an operating phase in which the dimming signal has a phase leading edge or a phase trailing edge, the two independent regulating circuits are coupled to each other via a higher-order third regulating circuit such that the lamp wattage of the converter is adjusted such that the switch-on time of the switch element in the wattType: ApplicationFiled: October 22, 2008Publication date: September 15, 2011Inventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Publication number: 20110221357Abstract: A method for operating a high pressure discharge lamp, with the high pressure discharge lamp being operated by a current inverter with a square wave lamp current having a positive phase with positive current flow and a negative phase with negative current flow, and with the current inverter being controlled by a control arrangement wherein the method comprises the steps of measuring a value for the positive current flow representing the lamp wattage or the square wave lamp current, measuring a value for the negative current flow representing the lamp wattage or the square wave lamp current; calculating a predetermined setpoint value in each case from a guide variable of a lamp wattage or of the square wave lamp current and the measured value for the phase with positive current flow; calculating a predetermined setpoint value in each case from a guide variable of a lamp wattage or of the square wave lamp current and the measured value for the phase with negative current flow; and outputting the two predeterminType: ApplicationFiled: October 23, 2008Publication date: September 15, 2011Inventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Publication number: 20110169427Abstract: In various embodiments, a circuit arrangement may include a voltage-measuring device embodied to measure an output voltage, wherein the voltage-measuring device is embodied to provide at its output a signal which is correlated with the measured output voltage, wherein the voltage-measuring device is coupled to a control device for the purpose of transmitting said signal to the control device, and wherein the control device is embodied to vary an off-time as a function of the measured output voltage.Type: ApplicationFiled: September 17, 2008Publication date: July 14, 2011Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Publication number: 20100277093Abstract: A circuit arrangement for operating discharge lamps is provided with an input, to which an AC system voltage from a power supply system can be connected, an output, to which at least one discharge lamp can be connected, a backup capacitance, which is arranged between the input and the output, and a switch, which is in a charging current path of the backup capacitance. The circuit arrangement may include a driver configured to clock the switch for a predetermined period of time when the circuit arrangement is switched on for periodically interrupting the charging current path of the backup capacitance.Type: ApplicationFiled: May 4, 2010Publication date: November 4, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Alois Braun, Walter Limmer, Maximilian Schmidl
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Publication number: 20100270944Abstract: An apparatus for controlling at least one electrical load may include at least one pushbutton; a communications interface for communicating with the loads, the loads being switched on and off by the at least one pushbutton via the communications interface; and a first controlled switch with control logic, said switch being connected between the loads and a power supply, and the first controlled switch isolates the power supply from the loads as soon as all of the loads have been disconnected via the communications interface.Type: ApplicationFiled: December 21, 2007Publication date: October 28, 2010Applicant: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventors: Thomas Rossmanith, Maximilian Schmidl
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Publication number: 20090273236Abstract: A system and method for supplying voltage to electrical loads in the onboard electrical system of a motor vehicle are provided. The onboard electrical system consists of at least two onboard electrical system regions. The first onboard electrical system region has an electric generator, a vehicle battery, as well as one or more first electrical loads. The second onboard electrical system region has a double-layer capacitor or a so-called supercap and one or more second electrical loads. Between the two onboard electrical system regions, a blocking device is provided, in particular, a semiconductor diode or a power switch, which permits a current flow from the first onboard electrical system region into the second electrical system region and largely prevents a reverse current flow from the second onboard electrical system region into the first onboard electrical system region.Type: ApplicationFiled: February 3, 2009Publication date: November 5, 2009Applicant: Bayerische Motoren Werke AktiengesellschaftInventors: Andreas Broesse, Dieter Polenov, Hartmut Proebstle, Markus Fuchs, Michael Roesler, Maximilian Schmidl