Vol 2, No 3 (2014)
- Year: 2014
- Published: 03.02.2014
- Articles: 10
- URL: https://ogarev-online.ru/2311-2468/issue/view/19138
Full Issue
Analyzer of single-phase electrical circuit parameters
Abstract
The article considers the construction of a device for measuring AC single-phase major parameters: effective values of voltage and current; power frequency; active, reactive, total power; power factor. The key parts of the developed device are the following: current and voltage sensors, chip precision meter ADE7753, microcontroller ATtiny2313, and liquid crystal display MT-20S4M.
Rapid thermal oxidation of silicon carbide
Abstract
The article considers the peculiarities of the process of silicon carbide thermal oxidation. Particularly, the authors focus on the low growth rate of oxide film on the surface of silicon carbide. In this connection the methods of rapid oxidation of silicon carbide plates are considered.
A research of solar battery step-up converter parameters
Abstract
The article presents the results of solar battery step-up converter parameters research. An experimental layout of the converter has been designed and measured, using SPV1040 application circuit. Thus the converter operates correctly until the solar panel voltage is above 2 V, and the using of two 5 mW solar batteries allows charging of three Ni-mH battery with a voltage 3.7V.
High-performance drivers for leds
Abstract
The article provides a manual of drivers for compact LEDs. Particularly, the author considers LEDs' general technical specifications as well as drivers' electrical characteristics. The article also includes electrical circuit schemes and a calculation of the circuit elements of LED drivers based on IC TPS92010.