Military, Aerospace & Hi-Rel

April 2022
Yotta Energy to Deploy Solar + Storage Microgrid at Nellis Air Force Base
­As oil and gas prices continue to rise the world needs more alternative energy sources that increase resiliency and decrease dependence on fossil fuels. Yotta Energy has raised an additional $3.5 million, including a strategic investment from inverter OEM partner  APsystems, bringing its total Series A
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Date:
04/26/2022
New Technology Enables 1200 V SiC MOSFET in Various Packages
The new M1H chip has been designed to provide flexibility and is intended for use in applications, such as inverters in solar energy systems, which have to meet peak demand. The chip is also ideal for use in fast EV charging, energy storage systems and other industrial applications.   Advancements in the
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Date:
04/19/2022
40 V Rad Hard GaN Power Device for Demanding Space Applications
­EPC Space announces the introduction of EPC7019G, a 40 V, 4 mΩ, 530 Apulsed, radiation-hardened gallium nitride transistor that is lower in cost and is a more efficient solution than the nearest comparable radiation hardened (RH) silicon MOSFET. The EPC7019G has a total dose rating greater than 1 Mrad
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Date:
04/18/2022
Study of Data from NASA, ESA and Russian Space Agency Explores Effects of Extended Spaceflight on Brain
­Scientists from the U.S., Europe and Russia are part of a team releasing the results of a large collaborative study involving the effects of long duration spaceflight on the brain. It appears in the Proceedings of the National Academy of Sciences. The researchers found that while all of the astronauts and cosmo
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Date:
04/12/2022
Airborne Base Stations Enable Life-Saving Communications

Figure 1: The Fukaden tethered drone can be deployed quickly to support natural disaster situations where lives are at risk.

Natural disasters can occur all over the world and restoring communications is essential for first responders to support the time-critical needs of victims and reinstating the supply of essential services such as drinking water, food and electricity. A Japanese engineering company, Fukaden Corporation, is enabli
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Date:
04/07/2022
Integration Facility Supports Smallsat Development

SwRI’s new 74,000-square-foot Space System Integration Facility will allow rapid response to customers needing to design, assemble and test spacecraft, particularly small satellites for emerging “new space” applications, including support for the commercial and U.S. Department of Defense arenas.

Southwest Research Institute has added a new, 74,000-square-foot Space System Integration Facility to its San Antonio headquarters. The SwRI facility can rapidly respond to customers needing to design, assemble and test spacecraft, particularly small satellites for emerging “new space” applications, including su
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Date:
04/04/2022
AC Losses in Magnetic Components

Click image to enlarge

Figure 1. Typical B-H curve from positive saturation to negative saturation. When H is zero there exists Br which requires -Hc to return to zero. The area within the loop is core loss per cycle

What are AC Losses and why are they important? This paper discusses the physical effects and which issues must be observed by design engineers. Furthermore, an approach to determine AC losses with unmatched accuracy is being introduced. In 1892 Charles P. Steinmetz, working for General Electric presented his no
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Date:
04/01/2022