National Semiconductor Corporation (NYSE: NSM) announced two new high-performance converters that feature high current system efficiency and extended battery life. The LM2716's buck/boost converter and the LM2717's buck/buck converter can drive a wide range of different sized loads and ensure efficiencies of up to 90%, thus extending system battery life . These converter chips are ideal for embedded computer systems, set-top boxes, portable Internet devices, general loads, and monitors and televisions including TFT/LCD flat panel displays.
Organic compounds in the narrow sense mainly refer to carbon elements, hydrogen elements, must be carbon-containing compounds, but do not include carbon oxides and sulfides, carbonic acid, carbonates, cyanides, thiocyanides, cyanates, carbides, carbon borane, carbonaceous metals, metal-organic ligand complexes without M-C bonds, some metal-organic compounds (substances containing M-C bonds) and other carbon-containing substances mainly studied in inorganic chemistry.
Organic matter is the material basis of life, and all living organisms contain organic compounds, such as fats, amino acids, proteins, sugars, heme, chlorophyll, enzymes, hormones, etc. Metabolism in living organisms and genetic phenomena in living organisms are related to the transformation of organic compounds. In addition, many substances that are closely related to human life, such as oil, natural gas, cotton, dyes, chemical fibers, plastics, plexiglass, natural and synthetic drugs, etc., are closely related to organic compounds.
Organic Chemicals, Basic Organic Chemistry,Organic Chemistry,Organic Compound
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