Patents by Inventor Roland Karle
Roland Karle 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: 11515870Abstract: A system includes an output terminal and a linear switch circuit coupled to the output terminal. The linear switch circuit includes a first power field-effect transistor (FET) having: a first channel width; a control terminal; a first current terminal; and a second current terminal, wherein the second current terminal is coupled to the output terminal. The linear switch circuit also includes a second power FET having: a second channel width smaller than the first channel width; a control terminal; a first current terminal coupled to the first current terminal of the first power FET; and a second current terminal coupled to the output terminal. The system also comprises a control circuit coupled to the control terminal of the first power FET and to the control terminal of the second power FET. The control circuit detects a drain-to-source voltage (VDS) saturation condition and controls the first and second power FETs accordingly.Type: GrantFiled: April 19, 2021Date of Patent: November 29, 2022Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Roland Karl Son, Craig Bennett Greenberg, Indumini Ramuthu
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Publication number: 20210242866Abstract: A system includes an output terminal and a linear switch circuit coupled to the output terminal. The linear switch circuit includes a first power field-effect transistor (FET) having: a first channel width; a control terminal; a first current terminal; and a second current terminal, wherein the second current terminal is coupled to the output terminal. The linear switch circuit also includes a second power FET having: a second channel width smaller than the first channel width; a control terminal; a first current terminal coupled to the first current terminal of the first power FET; and a second current terminal coupled to the output terminal. The system also comprises a control circuit coupled to the control terminal of the first power FET and to the control terminal of the second power FET. The control circuit detects a drain-to-source voltage (VDS) saturation condition and controls the first and second power FETs accordingly.Type: ApplicationFiled: April 19, 2021Publication date: August 5, 2021Inventors: Roland Karl Son, Craig Bennett Greenberg, Indumini Ramuthu
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Patent number: 11018663Abstract: A system includes an output terminal and a linear switch circuit coupled to the output terminal. The linear switch circuit includes a first power field-effect transistor (FET) having: a first channel width; a control terminal; a first current terminal; and a second current terminal, wherein the second current terminal is coupled to the output terminal. The linear switch circuit also includes a second power FET having: a second channel width smaller than the first channel width; a control terminal; a first current terminal coupled to the first current terminal of the first power FET; and a second current terminal coupled to the output terminal. The system also comprises a control circuit coupled to the control terminal of the first power FET and to the control terminal of the second power FET. The control circuit detects a drain-to-source voltage (VDS) saturation condition and controls the first and second power FETs accordingly.Type: GrantFiled: August 3, 2020Date of Patent: May 25, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Roland Karl Son, Craig Bennett Greenberg, Indumini Ranmuthu
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Patent number: 10979037Abstract: In described examples, a power interface subsystem includes power transistors, each having: a conduction path coupled between a battery terminal and an accessory terminal; and a control terminal. A differential amplifier has: a first input coupled to the battery terminal; a second input coupled to the accessory terminal; and an output node. An offset voltage source is coupled to cause an offset of a selected polarity at one of the inputs to the differential amplifier. The offset has a first polarity in a first operating mode and a second polarity in a second operating mode. Gate control circuitry is coupled to apply a control level at the control terminal(s) of selected one(s) of the power transistors responsive to a voltage at the output node, and to apply an off-state control level to the control terminal(s) of unselected one(s) of the power transistors.Type: GrantFiled: October 22, 2018Date of Patent: April 13, 2021Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Sujan Kundapur Manohar, Roland Karl Son, Juergen Luebbe, Eddie W. Yu
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Publication number: 20210091764Abstract: A system includes an output terminal and a linear switch circuit coupled to the output terminal. The linear switch circuit includes a first power field-effect transistor (FET) having: a first channel width; a control terminal; a first current terminal; and a second current terminal, wherein the second current terminal is coupled to the output terminal. The linear switch circuit also includes a second power FET having: a second channel width smaller than the first channel width; a control terminal; a first current terminal coupled to the first current terminal of the first power FET; and a second current terminal coupled to the output terminal. The system also comprises a control circuit coupled to the control terminal of the first power FET and to the control terminal of the second power FET. The control circuit detects a drain-to-source voltage (VDS) saturation condition and controls the first and second power FETs accordingly.Type: ApplicationFiled: August 3, 2020Publication date: March 25, 2021Inventors: Roland Karl SON, Craig Bennett GREENBERG, Indumini RANMUTHU
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Patent number: 10227777Abstract: The present invention relates to a method of producing a concrete component (15), to a prefabricated structural element (3), which serves as a semi-finished product for the production of the concrete component (15) made in this way, and to a corresponding concrete component (15). The method claimed involves the following steps: producing a prefabricated structural element (3) comprising first reinforcement structures (18), which feature textile reinforcement structures, and first thermal insulation elements (6), pouring concrete into a shell mold (13) to form a first concrete layer (11), lowering the prefabricated structural element (3) onto the first concrete layer (11).Type: GrantFiled: June 25, 2014Date of Patent: March 12, 2019Assignee: Groz-Beckert KGInventors: Roland Karle, Hans Kromer, Johann Pfaff
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Publication number: 20190058463Abstract: In described examples, a power interface subsystem includes power transistors, each having: a conduction path coupled between a battery terminal and an accessory terminal; and a control terminal. A differential amplifier has: a first input coupled to the battery terminal; a second input coupled to the accessory terminal; and an output node. An offset voltage source is coupled to cause an offset of a selected polarity at one of the inputs to the differential amplifier. The offset has a first polarity in a first operating mode and a second polarity in a second operating mode. Gate control circuitry is coupled to apply a control level at the control terminal(s) of selected one(s) of the power transistors responsive to a voltage at the output node, and to apply an off-state control level to the control terminal(s) of unselected one(s) of the power transistors.Type: ApplicationFiled: October 22, 2018Publication date: February 21, 2019Inventors: Sujan Kundapur Manohar, Roland Karl Son, Juergen Luebbe, Eddie W. Yu
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Patent number: 10116291Abstract: In described examples, a power interface subsystem includes power transistors, each having: a conduction path coupled between a battery terminal and an accessory terminal; and a control terminal. A differential amplifier has: a first input coupled to the battery terminal; a second input coupled to the accessory terminal; and an output node. An offset voltage source is coupled to cause an offset of a selected polarity at one of the inputs to the differential amplifier. The offset has a first polarity in a first operating mode and a second polarity in a second operating mode. Gate control circuitry is coupled to apply a control level at the control terminal(s) of selected one(s) of the power transistors responsive to a voltage at the output node, and to apply an off-state control level to the control terminal(s) of unselected one(s) of the power transistors.Type: GrantFiled: August 9, 2016Date of Patent: October 30, 2018Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Sujan Kundapur Manohar, Roland Karl Son, Juergen Luebbe, Eddie W. Yu
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Patent number: 9831852Abstract: In described examples, a transistor has: a source and a drain coupled between a supply voltage and an output terminal; and a gate terminal. A charge pump has: an output node coupled to the gate terminal; and a clock input. An oscillator is coupled to generate a clock signal. A clock enable circuit is coupled to: receive the clock signal; and selectively output the clock signal to the clock input, responsive to an enable signal. A comparator is coupled to output the enable signal in response to a comparison between a reference current and a current through a series resistor. The series resistor is coupled to the gate terminal.Type: GrantFiled: August 23, 2016Date of Patent: November 28, 2017Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Emmanuel Osei Boakye, Roland Karl Son, Juergen Luebbe
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Publication number: 20170334162Abstract: A prefabricated concrete element (10) having a textile reinforcement (17) comprising fastening elements (12, 13, 14, 15), which are connected directly to the reinforcement (17). The fastening elements (12 to 15) can have a bent form and pass through a flat side of the prefabricated concrete element (10). The fastening elements can also have a straight or elongated form and emerge on narrow sides of a plate-shaped prefabricated concrete element (I 0). Because of the direct connection between the fastening element (12 to 15) and the reinforcement (17), the prefabricated concrete element can have an especially extensive and thin form and thus can be used as a façade panel.Type: ApplicationFiled: May 1, 2017Publication date: November 23, 2017Inventors: Roland Karle, Johann Pfaff, Hans Kromer
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Patent number: 9663950Abstract: A concrete component includes a fiber reinforcement structure (12), formed by a grid arrangement (15). At least some of the rods extending in the X or Y direction are preferably designed as double rods having a joined cross-section or having sub-cross-sections separated from each other by a gap (20). Such double rods can be arranged in a grid structure both at right angles to each other and at other angles to provide a triangular structure, a hexagonal structure, or the like as a grid. Fiber reinforcement structures (12) made of a plastic-impregnated fiber material, such as epoxy-resin-bonded glass fibers having long fibers (endless fibers), in the particular rod longitudinal direction and without bonding among each other (ravings) can construct an adequately load-bearing composite with the concrete body (II). The steel rods can act as reinforcement, wherein harmful effects on the concrete, in particular wedge and gap effects, do not occur.Type: GrantFiled: May 7, 2013Date of Patent: May 30, 2017Assignee: GROZ-BECKERT KGInventors: Roland Karle, Hans Kromer, Johann Pfaff
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Patent number: 9636886Abstract: A prefabricated concrete element (10) having a textile reinforcement (17) comprising fastening elements (12, 13, 14, 15), which are connected directly to the reinforcement (17). The fastening elements (12 to 15) can have a bent form and pass through a flat side of the prefabricated concrete element (10). The fastening elements can also have a straight or elongated form and emerge on narrow sides of a plate-shaped prefabricated concrete element (I 0). Because of the direct connection between the fastening element (12 to 15) and the reinforcement (17), the prefabricated concrete element can have an especially extensive and thin form and thus can be used as a façade panel.Type: GrantFiled: January 2, 2014Date of Patent: May 2, 2017Assignee: GROZ-BECKERT KGInventors: Roland Karle, Johann Pfaff, Hans Kromer
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Publication number: 20170063369Abstract: In described examples, a transistor has: a source and a drain coupled between a supply voltage and an output terminal; and a gate terminal. A charge pump has: an output node coupled to the gate terminal; and a clock input. An oscillator is coupled to generate a clock signal. A clock enable circuit is coupled to: receive the clock signal; and selectively output the clock signal to the clock input, responsive to an enable signal. A comparator is coupled to output the enable signal in response to a comparison between a reference current and a current through a series resistor. The series resistor is coupled to the gate terminal.Type: ApplicationFiled: August 23, 2016Publication date: March 2, 2017Inventors: Emmanuel Osei Boakye, Roland Karl Son, Juergen Luebbe
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Publication number: 20170047731Abstract: In described examples, a power interface subsystem includes power transistors, each having: a conduction path coupled between a battery terminal and an accessory terminal; and a control terminal. A differential amplifier has: a first input coupled to the battery terminal; a second input coupled to the accessory terminal; and an output node. An offset voltage source is coupled to cause an offset of a selected polarity at one of the inputs to the differential amplifier. The offset has a first polarity in a first operating mode and a second polarity in a second operating mode. Gate control circuitry is coupled to apply a control level at the control terminal(s) of selected one(s) of the power transistors responsive to a voltage at the output node, and to apply an off-state control level to the control terminal(s) of unselected one(s) of the power transistors.Type: ApplicationFiled: August 9, 2016Publication date: February 16, 2017Inventors: Sujan Kundapur Manohar, Roland Karl Son, Juergen Luebbe, Eddie W. Yu
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Patent number: 9388577Abstract: A structural element (10) for use as a ceiling element or wall element. The structural element (10) has a facing shell (11) and a relatively thicker supporting shell (12). The facing shell (11) has a first concrete layer (14) with a textile reinforcement (15) arranged therein. The supporting shell (12) has a second concrete layer (16) and a supporting shell reinforcement (17) in the form of a box-grid structure from interconnected structural steel elements (18, 19, 20). The facing shell (11) is connected to the supporting shell (12) by a plurality of metal-free connecting bodies (24) in the form of a three-dimensional a textile grid structure (25). The textile grid structure can be produced as a woven fabric, a plait, a nonwoven fabric or a knit from carbon fibers and/or glass fiber threads that have a coating to produce the three-dimensional structure. Each connecting body (24) extends in at least two spatial planes.Type: GrantFiled: December 21, 2012Date of Patent: July 12, 2016Assignee: Groz-Beckert KGInventors: Hans Kromer, Roland Karle, Hans Pfaff
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Publication number: 20160130812Abstract: The present invention relates to a method of producing a concrete component (15), to a prefabricated structural element (3), which serves as a semi-finished product for the production of the concrete component (15) made in this way, and to a corresponding concrete component (15). The method claimed involves the following steps: producing a prefabricated structural element (3) comprising first reinforcement structures (18), which feature textile reinforcement structures, and first thermal insulation elements (6), pouring concrete into a shell mould (13) to form a first concrete layer (11), lowering the prefabricated structural element (3) onto the first concrete layer (11).Type: ApplicationFiled: June 25, 2014Publication date: May 12, 2016Inventors: Roland Karle, Hans Kromer, Johann Pfaff
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Publication number: 20150345140Abstract: A prefabricated concrete element (10) having a textile reinforcement (17) comprising fastening elements (12, 13, 14, 15), which are connected directly to the reinforcement (17). The fastening elements (12 to 15) can have a bent form and pass through a flat side of the prefabricated concrete element (10). The fastening elements can also have a straight or elongated form and emerge on narrow sides of a plate-shaped prefabricated concrete element (I 0). Because of the direct connection between the fastening element (12 to 15) and the reinforcement (17), the prefabricated concrete element can have an especially extensive and thin form and thus can be used as a façade panel.Type: ApplicationFiled: January 2, 2014Publication date: December 3, 2015Inventors: Roland Karle, Johann Pfaff, Hans Kromer
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Publication number: 20150132533Abstract: A concrete component includes a fiber reinforcement structure (12), formed by a grid arrangement (15). At least some of the rods extending in the X or Y direction are preferably designed as double rods having a joined cross-section or having sub-cross-sections separated from each other by a gap (20). Such double rods can be arranged in a grid structure both at right angles to each other and at other angles to provide a triangular structure, a hexagonal structure, or the like as a grid. Fiber reinforcement structures (12) made of a plastic-impregnated fiber material, such as epoxy-resin-bonded glass fibers having long fibers (endless fibers), in the particular rod longitudinal direction and without bonding among each other (ravings) can construct an adequately load-bearing composite with the concrete body (II). The steel rods can act as reinforcement, wherein harmful effects on the concrete, in particular wedge and gap effects, do not occur.Type: ApplicationFiled: May 7, 2013Publication date: May 14, 2015Inventors: Roland Karle, Hans Kromer, Johann Pfaff
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Publication number: 20150033655Abstract: A structural element (10) for use as a ceiling element or wall element. The structural element (10) has a facing shell (11) and a relatively thicker supporting shell (12). The facing shell (11) has a first concrete layer (14) with a textile reinforcement (15) arranged therein. The supporting shell (12) has a second concrete layer (16) and a supporting shell reinforcement (17) in the form of a box-grid structure from interconnected structural steel elements (18, 19, 20). The facing shell (11) is connected to the supporting shell (12) by a plurality of metal-free connecting bodies (24)in the form of a three-dimensional a textile grid structure (25). The textile grid structure can be produced as a woven fabric, a plait, a nonwoven fabric or a knit from carbon fibres and/or glass fibre threads that have a coating to produce the three-dimensional structure. Each connecting body (24) extends in at least two spatial planes.Type: ApplicationFiled: December 12, 2012Publication date: February 5, 2015Inventors: Hans Kromer, Roland Karle, Hans Pfaff
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Patent number: 3935065Abstract: Apparatus and process are provided for the conservation of living organs by using a cooled perfusing means enriched with a respiratory gas in a thermally insulated receptacle with a pumping device driven by a gas and which regulates the perfusing medium according the flow-resistance in the organ.Type: GrantFiled: August 29, 1973Date of Patent: January 27, 1976Inventor: Roland Karl Doerig