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Synoptic Optical Long-term Investigations of the Sun (SOLIS) is a synoptic facility for solar observations over a long time frame that is funded by the National Science Foundation (NSF) and designed and built by the National Solar Observatory (NSO). [1] [2] [3] It is operated by the NSO Integrated Synoptic Program (NISP). SOLIS is a single set ...
Internal view of a solar inverter. Note the many large capacitors (blue cylinders), used to buffer the double line frequency ripple arising due to single-phase ac system.. A solar inverter or photovoltaic (PV) inverter is a type of power inverter which converts the variable direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be ...
Perfect Charging is Fronius International's oldest business unit. Fronius has been researching and developing charging technology since it was founded in 1945. The 1990s saw inverter technology applied for the first time to pulsed charging devices for charging vehicle starter batteries. The ACCTIVA series is a starter-battery charging system.
A Sunny Mini Central mounted with a ground-mounted system in Speyer, down the Rhine A Sunny Mini Central mounted next to photovoltaic solar modules. The company was founded by Werner Kleinkauf and former board members Günther Cramer (1952–2015), Peter Drews and Reiner Wettlaufer as a separate company from the University of Kassel, subsequently renamed in 2004 to SMA Technologie AG.
A power inverter, inverter, or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). [1] The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC. [2]
1909 500 kW Westinghouse rotary converter. A rotary converter is a type of electrical machine which acts as a mechanical rectifier, inverter or frequency converter.. Rotary converters were used to convert alternating current (AC) to direct current (DC), or DC to AC power, before the advent of chemical or solid state power rectification and inverting.
Systems Tool Kit (formerly Satellite Tool Kit), often referred to by its initials STK, is a multi-physics software application from Analytical Graphics, Inc. (an Ansys company) that enables engineers and scientists to perform complex analyses of ground, sea, air, and space platforms, and to share results in one integrated environment. [1]
The Yoga 2 Pro's backlit AccuType keyboard. The Yoga 2 Pro is an Ultrabook-class device. It weighs 3.1 lb (1.4 kg), is 0.61 inch thick and has tapered edges, giving it an appearance more like a conventional ultrabook laptop vs the earlier model's "book-like" symmetrical design. The Yoga 2 Pro features a 360-Degree Flip-and-Fold design that ...