Návrh a realizace stabilních generátorů harmonických signálů

Abstract

Master thesis is dealing with the design of stable generators of harmonic signals. The basic involvement of the periodic generator comes out of involvement of two operational amplifiers, which are integrated in the function of integrator and comparator. The resistor which is located at the input of the integrator was replaced by the technology which is using switched capacitors in order that the circuit could be debugged. In this thesis the measurement of the qualities of the operational amplifier was also mentioned and afterwards the most suitable operational amplifier for every single function was selected. Subsequently the design of the filter was described and then the concrete filter Maxim using the switched capacitors technology was chosen as the best one for this place. Thanks to that the circuit can be completely debugged. The whole involvement was tested on the breadboard and then it was designed on printed circuit board. The aim of this thesis was to achieve the long-lasting stability of the whole circuit and its independence on the temperature. Finally various outputs of the concrete measurements were described too.