Patents by Inventor Stefan Hacker
Stefan Hacker 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: 11532934Abstract: Digital isolator devices, and many other devices, have a maximum device junction temperature, which, if exceeded, may cause device failure and the integrity of the isolation is no longer guaranteed. The use of an electronic fuse, eFuse, arranged in series with the digital isolator, provides a protection scheme for the digital isolator in which current is limited by the eFuse when it is determined that the supply current of the digital isolator exceeds a predetermined threshold that would the cause junction temperature to increase above an absolute maximum rating. As such, the integrity of the digital isolator is preserved in the event of a system fault.Type: GrantFiled: November 29, 2018Date of Patent: December 20, 2022Assignee: Analog Devices International Unlimited CompanyInventors: Paul O'Sullivan, Maurice O'Brien, Donal G. O'Sullivan, Stefan Hacker, Conal Watterson
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Publication number: 20200176974Abstract: Digital isolator devices, and many other devices, have a maximum device junction temperature, which, if exceeded, may cause device failure and the integrity of the isolation is no longer guaranteed. The use of an electronic fuse, eFuse, arranged in series with the digital isolator, provides a protection scheme for the digital isolator in which current is limited by the eFuse when it is determined that the supply current of the digital isolator exceeds a predetermined threshold that would the cause junction temperature to increase above an absolute maximum rating. As such, the integrity of the digital isolator is preserved in the event of a system fault.Type: ApplicationFiled: November 29, 2018Publication date: June 4, 2020Inventors: Paul O'Sullivan, Maurice O'Brien, Donal G. O'Sullivan, Stefan Hacker, Conal Watterson
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Patent number: 10523016Abstract: An apparatus is provided comprising: a first power domain that includes a first component that operates at a first voltage level; a second power domain that includes a media access controller (MAC) that operates at a second voltage level; and a third power domain that includes a physical media access (PHY) device that operates at a third voltage level; wherein the first voltage level is higher than the second voltage level; and wherein the second voltage level is unreferenced; further including: a first reinforced electrical isolation circuit disposed on a first circuit path that includes at least one signal lane that extends between the first power domain and the second power domain; and a second reinforced electrical isolation circuit disposed on a second circuit path that includes at least one signal lane that extends between the MAC device and the PHY device.Type: GrantFiled: May 4, 2016Date of Patent: December 31, 2019Assignee: Analog Devices GlobalInventors: Stefan Hacker, Andreas Koch, Ralph Patrick McCormick
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Patent number: 10389507Abstract: Techniques for duplex communication and power transfer across an isolator are provided. In an example, a first transceiver coupled to a first side of an isolator can include a transmit modulator configured to receive first data and timing signals, to provide control signals to oscillate an output of the transceiver to transmit power and to order each half-cycle of an oscillation cycle of the output to transmit the first data. A second transceiver coupled to a second side of the isolator can include a receive detection circuit configured to compare a received oscillation cycle with a plurality of thresholds and to provide a plurality of comparator outputs indicative of reception of the positive half-cycle and the negative half-cycle, and a receive decoder configured to identify the order of half-cycles and to provide an output indicative of logic level of the first data.Type: GrantFiled: October 18, 2016Date of Patent: August 20, 2019Assignee: Analog Devices GlobalInventors: Andreas Koch, Stefan Hacker
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Publication number: 20170324251Abstract: An apparatus is provided comprising: a first power domain that includes a first component that operates at a first voltage level; a second power domain that includes a media access controller (MAC) that operates at a second voltage level; and a third power domain that includes a physical media access (PHY) device that operates at a third voltage level; wherein the first voltage level is higher than the second voltage level; and wherein the second voltage level is unreferenced; further including: a first reinforced electrical isolation circuit disposed on a first circuit path that includes at least one signal lane that extends between the first power domain and the second power domain; and a second reinforced electrical isolation circuit disposed on a second circuit path that includes at least one signal lane that extends between the MAC device and the PHY device.Type: ApplicationFiled: May 4, 2016Publication date: November 9, 2017Inventors: Stefan Hacker, Andreas Koch, Ralph Patrick McCormick
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Publication number: 20170111162Abstract: Techniques for duplex communication and power transfer across an isolator are provided. In an example, a first transceiver coupled to a firs-t side of an isolator can include a transmit modulator configured to receive first data and timing signals, to provide control signals to oscillate an output of the transceiver to transmit power and to order each half-cycle of an oscillation cycle of the output to transmit the first data. A second transceiver coupled to a second side of the isolator can include a receive detection circuit configured to compare a received oscillation cycle with a plurality of thresholds and to provide a plurality of comparator outputs indicative of reception of the positive half-cycle and the negative half-cycle, and a receive decoder configured to identify the order of half-cycles and to provide an output indicative of logic level of the first data.Type: ApplicationFiled: October 18, 2016Publication date: April 20, 2017Inventors: Andreas Koch, Stefan Hacker
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Publication number: 20130036954Abstract: With an apparatus for supplying multiple burners with fine-grained fuel from a storage container, with thermal conversion of solid fuels in a gasification reactor, wherein the storage container is equipped with a discharge cone, a solution is supposed to be created with which the required excess gas amounts can be reduced and it is possible to do without separate discharge cones per burner line, without giving up the uncoupling of the burner lines. This is achieved in that the discharge cone (1) is equipped, at least in certain regions, with a gas-permeable wall region (6, 6?) and with at least two solids discharge lines (15) that lead to the burners.Type: ApplicationFiled: April 15, 2011Publication date: February 14, 2013Applicant: THYSSENKRUPP UHDE GMBHInventors: Stefan Hacker, Stefan Hamel, Eberhard Kuske
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Publication number: 20120269586Abstract: With a device for feeding a fluid, such as a gas or a liquid, into a solid-conveying line, wherein the fluid is first passed into a ring space that surrounds the solid-conveying line, and from there into the solid-conveying line, conveying of coal in the form of dust or flue ash, for example, is to be undertaken in gasification systems, at elevated temperatures, at great output and great operational reliability. This is achieved in that the solid-conveying line is shorter, in the ring space for forming a ring gap, than the length of the ring space, wherein installations for producing a vortex flow of the fluid that is introduced are provided in the ring space.Type: ApplicationFiled: November 9, 2010Publication date: October 25, 2012Applicant: ThyssenKrupp Uhde GmbHInventors: Stefan Hamel, Stefan Hacker
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Patent number: 6776813Abstract: A device for liquid separation for drying and cleaning of compressed gases, which is intended, especially, for compressed air and breathing air, and in which the design is such that a centrifugal liquid separator is located axially upstream of a filter with a filter cartridge in the tank of the device. In the interior of the tank there is the centrifugal liquid separator with an assigned separation space and a condensate liquid collection space axially underneath the filter cartridge of the filter. The bottom of the filter cartridge can form the boundary wall of the separation space of the centrifugal liquid separator. Between the outside wall of the filter cartridge of the filter and the inside wall of the tank there is a narrow gap in which the compressed gas, after leaving the centrifugal liquid separator, rises high along the filter cartridge as far as the opposite entry into the filter. In this area, further post-separation or fine separation can take place.Type: GrantFiled: January 16, 2003Date of Patent: August 17, 2004Assignee: Bauer Kompressoren GmbHInventor: Stefan Hacker
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Publication number: 20030154699Abstract: A device for liquid separation and filtration for drying and cleaning of compressed gases, which is intended, especially, for compressed air and breathing air, and in which the design is such that a centrifugal liquid separation means is located axially upstream of a filter means with a filter cartridge in the tank of the device. In the interior of the tank there is a centrifugal liquid separation means with an assigned separation space and a condensate liquid collection space axially underneath the filter means of the filter cartridge. The bottom of the filter cartridge can form the boundary wall of the separation space of the centrifugal liquid separation means. Between the outside wall of the filter cartridge of the filter means and the inside wall of the tank there is a narrow gap in which the compressed gas, after leaving the centrifugal liquid separation means, rises high along the filter cartridge as far as the opposite entry into the filter means.Type: ApplicationFiled: January 16, 2003Publication date: August 21, 2003Applicant: Bauer Kompressoren GmbHInventor: Stefan Hacker