Embedded system inputs and outputs disturbing sources and the linear optocoupler behavior mathematical description

Abstract

The paper reveals the possible sources of interference that can disrupt the function of inputs and outputs of embedded systems or interfere with correct interpretation of the input signals or the possibility of complete destruction of input and output circuits by these interferences. The issue of capping limits for analog signals with linear optocoupler and also use of designed limit voltage limiters are solved as well. In the last part the measured static and dynamic limiters characteristics are measured and linear optocoupler is described mathematically.The research work was performed to financial support of grant reg. No IGA/32/FAI/11/D and by the European Regional Development Fund under the project CEBIATech No.CZ.1.05/2.1.00/03.0089.