2017 Issue №3

The article introduces the results of the research of the impedance hodographs and the capacitance-voltage characteristics of silicon photovoltaic solar energy converters based on the n+-p- junction with the antireflection coating of porous silicon on n+- region surface. The equivalent circuit of the semiconductor structure under investigation in the form of a series circuit with the constant phase elements is developed. The form of experimental capacitancevoltage characteristics is proposed.

The article considers the problem of the use of analog-to-digital and digital- to-analog converter (ADC-DAC) at practical physics lessons in a college. The authors analyze prepared laboratory class materials in Physics, based on reasonably priced Russian-manufactured «ZET-210» DAC-ADC module. Bundled ZETLAB software enables to turn a computer into a physics minilaboratory, which allows to generate, measure, analyze signals, and visualize measurements. The article demonstrates sure advantages of the use of DACADC technology base at practical physics lessons at college. This technology is compared with traditional lessons equipment, when unconnected laboratory setups are constructed for research of each effect and phenomenon.