INSULATION INTERFACE WITH CAPATIVE BARRIER AND PROCEDURE OF SIGNAL TRANSMISSION WITH THE HELP OF SUCH INSULATION INTERFACE

摘要

The signal transmission through an insulation interface with capacitive barrier is implemented in such a way that within the interface input circuit, featuring integration with an appropriate time factor, a side gradient or time of the transmitted signal repilcas (U1o+, U1o-) increases and decreases are set, and that each of the specified signal replicas is dissipated through the appropriate drain assembly, while the time factors of these drain assemblies are smaller from the increase and decrease times of the signal replicas, while remaining preferably at the nanosecond level or even less. The circuit at the output of the capacitive barrier therefore needs no amplifier before the voltage comparators, which enables a very precise maintenance of the pulse width. The data transfer is immune to quick changes of potential difference between the power sources of the input and output circuits at the 10 kV/micro second level. The invention allows the transmission of digital signals up to the frequency of 100 MHz.