Využití spínaných kapacitorů při realizaci generátorů periodického signálu

Abstract

Bachelor thesis is dealing with utilization switching capacitors by realization of periodic generators. The main topic of the thesis is to design periodic generators, which changes its output frequency while the input frequency is changed. First the classic generator was designed and then the critical element was replaced by a technology of switched capacitors. Afterwards various kinds of involvements were verified. In the very last part of the thesis the filter for attaining the sinus voltage was designed. The ultimate filter was realized by utilization of a filter with technology of switched capacitors. Specifically the filter which is produced by a firm called Maxim was used. All three main signal processes can be debugged by means of external signal. Various involvements of the switched capacitors were measured and the best way round a problem was chosen. The aim of my thesis was to describe the problem theoretically, to measure various kinds of involvement on breadboard and to prescribe the best way round a problem of involvement. A part of my thesis includes some signal samples from the process of measurement and some tables of the measured readings which demonstrate the accurate function of the (designed) generator.