Resumes
Resumes
Eduard Mueller Phones & Addresses
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20 Mc Cormicks Ln, Ballston Lake, NY 12019
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Ingleside, TX
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Chattanooga, TN
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Hudsonville, MI
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Clifton Park, NY
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Notre Dame, IN
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10 St Patrick Pl, Ballston Lake, NY 12019
Education
Degree:
Associate degree or higher
Publications
Us Patents
Cryogenic Capacitors
View pageUS Patent:
7126810, Oct 24, 2006
Filed:
Jun 24, 2004
Appl. No.:
10/875458
Inventors:
Otward M. Mueller - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Michael J. Hennessy - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Michael J. Hennessy - Ballston Lake NY, US
International Classification:
H01G 4/38
US Classification:
361328, 3613014, 3613214, 3613081, 361227, 361311
Abstract:
This invention describes a means by which performance characteristics of capacitors can be improved. This is achieved by reducing the temperature, preferably but not exclusively to cryogenic temperatures below 100 K. This is based on the observation that the dielectric strength, dielectric losses and plate losses in many capacitors, such as film capacitors, improve as the temperature is decreased. A cryogenic capacitor bank is also described, which exhibits energy densities up to four times those of conventional, room-temperature capacitor banks. Cryogenic capacitors can be combined with cryogenically operated semiconductors or with superconductors in such a way as to reduce the size, weight, and losses of a complete system.
Efficient Thyristor-Type Power Switches
View pageUS Patent:
7352233, Apr 1, 2008
Filed:
Jun 13, 2005
Appl. No.:
11/151508
Inventors:
Otward Mueller - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Michael J. Hennessy - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Michael J. Hennessy - Ballston Lake NY, US
International Classification:
H03K 17/72
US Classification:
327438, 327440
Abstract:
The highest-power switches now available are based on thyristor-type devices: GTOs (Gate turn-off thyristors), MTOs (MOS controlled turn-off thyristors), IGCTs (Integrated gate commutated thyristors), and the new ETOs (Emitter turn-off thyristors). These devices handle kilovolts and kiloamperes for megawatt inverters/converters. Measurements by the inventors show that conduction losses of MOSFETs and switching losses of IGCTs are drastically decreased by cryo-cooling. IGCTs, ETOs, and MTOs, together with many small, low voltage MOSFETs for gate and emitter turn-off circuitry, are cryo-cooled to attain much higher switching speeds and a reduction in size, weight and cost of high-power (megawatt range) equipment.
Snubbers For Low Temperature Power Electronics
View pageUS Patent:
7369377, May 6, 2008
Filed:
Sep 12, 2005
Appl. No.:
11/224184
Inventors:
Michael J. Hennessy - Ballston Lake NY, US
John N. Park - Rexford NY, US
Otward M. Mueller - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
John N. Park - Rexford NY, US
Otward M. Mueller - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
International Classification:
H02H 7/00
H02H 9/00
H01L 29/00
H01L 23/34
H02H 9/00
H01L 29/00
H01L 23/34
US Classification:
361 19, 257532, 257536, 257713, 257714, 257716
Abstract:
Switching losses and conduction losses are isolated by networks which are partially cryogenic and partially at room temperature. Switching losses are independent of temperature. Advantageously the switching losses are taken in a snubber network at room temperature and conduction losses are incurred at cryogenic temperatures, where majority carrier devices like MOSFETs operate with ultra low on-state resistance and corresponding low conduction losses. Low loss leads carry current efficiently from the cryogenic environment to room temperature without adversely affecting refrigeration. Switch and snubber network may both operate cryogenically.
Hybrid Switch
View pageUS Patent:
7391133, Jun 24, 2008
Filed:
Sep 25, 2003
Appl. No.:
10/670810
Inventors:
Michael J. Hennessy - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
International Classification:
H01H 33/59
US Classification:
307113, 307115, 307125, 307131, 3071414, 307143, 361 2, 361 8, 361 13
Abstract:
An electrical switching topology for a hybrid switch provides extremely low losses in both cryogenic and non-cryogenic electronic systems. In this switch having switch modules connected in parallel, switching losses in a first module are separated from conduction losses in the parallel-connected second module. The conduction losses are then further reduced by cryogenically cooling the second module. Since the switching losses of the first module can be absorbed outside a cryogenic container, the switching losses do not add to the cryogenic heat load. In other applications, the switching module operates at lower temperatures to provide higher switching speeds and reduces switching heat generation.
Cryogenic Capacitors
View pageUS Patent:
7408764, Aug 5, 2008
Filed:
Oct 21, 2006
Appl. No.:
11/584369
Inventors:
Otward M. Mueller - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Michael J. Hennessy - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Michael J. Hennessy - Ballston Lake NY, US
International Classification:
H01G 9/00
US Classification:
361502, 361503, 361504, 361508, 361512, 3613014
Abstract:
This invention describes a means by which performance characteristics of capacitors can be improved. This is achieved by reducing the temperature, preferably but not exclusively to cryogenic temperatures below 100 K. The dielectric strength, dielectric losses, equivalent series resistance, and plate losses in many capacitors, such as film capacitors, improve as the temperature is decreased. Current carrying capacity is improved. A capacitor bank exhibits energy densities up to four times those of conventional, room-temperature capacitor banks. Cryogenic capacitors can be combined with cryogenically operated semiconductors or with superconductors to reduce the size, weight, and losses of a complete system.
Ring Configuration For Compact Power Supply Of Power Electronics
View pageUS Patent:
7619325, Nov 17, 2009
Filed:
Sep 12, 2005
Appl. No.:
11/224183
Inventors:
Michael J. Hennessy - Ballston Lake NY, US
Otward M. Mueller - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
John N. Park - Rexford NY, US
Otward M. Mueller - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
John N. Park - Rexford NY, US
International Classification:
H01B 7/30
US Classification:
307147, 439112
Abstract:
An ultra compact ring topology puts the output terminals of solid state switches physically at the center of a circuit with the switches surrounded by voltage busses. The switches are symmetrically arranged around the output bus, the voltage busses are filtered (decoupled) to ground using symmetrically positioned filter components, and lead lengths to and from the switches are minimized. Switch driver circuits are closely integrated with each switch and positioned as close as possible, each to its associated switch, and arranged symmetrically. Switches may be at cryogenic temperatures and busses and lead connectors may be superconductive.
Bi-Directional Power Converters
View pageUS Patent:
7816814, Oct 19, 2010
Filed:
Aug 20, 2007
Appl. No.:
11/894068
Inventors:
Michael J. Hennessy - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Richard Ross Neal - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Richard Ross Neal - Ballston Lake NY, US
International Classification:
H01H 9/00
US Classification:
307112
Abstract:
A bi-directional power converter for cryogenic operation based on a bi-directional cryo-MOSFET switch. Cryogenic power electronics lends itself easily to bi-directional topologies, and brings higher efficiencies, further reductions in switching speed, higher-frequency operation, reduction in size and weight of associated transformers and inductors, and reductions in overall size and weight. In addition, cryogenic power electronics operating around liquid nitrogen temperatures is easily integrated with superconducting motors, motor drives, and transformers, all of which can reduce size and weight of shipboard power systems, allowing for greater payload.
Energy Efficient Data Center
View pageUS Patent:
8423103, Apr 16, 2013
Filed:
Jul 12, 2011
Appl. No.:
13/180695
Inventors:
Michael J. Hennessy - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Otward M. Mueller - Ballston Lake NY, US
Eduard K. Mueller - Ballston Lake NY, US
Otward M. Mueller - Ballston Lake NY, US
International Classification:
H01L 39/00
US Classification:
505163
Abstract:
An energy efficient data center incorporating superconducting power transmission cables coupled with cryogenically cooled semiconductor inverters and converters, used to supply power to cryogenically operated or room-temperature computers and servers. Other options and features include a lighting system whose performance is enhanced by the cold temperatures, fiber optic connections operated at cryogenic temperatures, integrated renewable energy power sources, advanced energy storage technologies, cryogenically operated computers, and a number of other cryogenic hardware. The operating temperature of the cryogenic components can be anywhere in the range between 0 K and 200 K, with other components operating above 200 K.