Device Development for a Reduced-current Starter of Power Tools

The purpose of the graduate qualification work on "Development of a soft starter for a power tool" is to increase the service life of a power tool by developing a soft starter for power tools with a universal collector motor. The diploma project consists of an introduction, 4 chapters, a conclusion, a list of references and 1 application. The introduction reveals the relevance of the study, poses the problem, the purpose and objectives of the study, indicates the methodological basis of the study, its theoretical and practical significance. The first chapter discusses the main types of electric motors, their principles of operation, the main advantages and disadvantages. The second chapter introduces the concept of the problem of an abrupt start of a power tool, the consequences of its occurrence. It also discusses how power tool manufacturers and other developers deal with high inrush currents. The third chapter introduces the concept of a soft starter, describes the principle of its operation, identifies the advantages and disadvantages of this method of dealing with high inrush currents. The fourth chapter is devoted to experimental work, the main task of which is to develop an own soft starter in the virtual modelling environment Proteus Design Suite. There is also an analysis of the results here. The total volume of the graduate work is 63 pages, which contain 41 figures, 4 tables and 1 application. The list of used literature includes 22 sources.