Overview of hybrid filters for protection against conductive interference

Annotation: Conductive interference can penetrate to electronic components of radio-electronic equipment (REE) through the conductors of signal and power circuits. To protect against con- ductive interference electrical filters are used. The main disadvantage of such a solution is that the electrical filter is a device designed for specific purposes and is often not suitable for related tasks. To ensure electromagnetic compatibility the joint use of electrical filters of different purposes is practiced, such a protection device is called a hybrid. The specific property of a hybrid is that the characteristics of the electrical filters used in its composition compensate for the disadvantages of each other. In this article a review and comparative analysis of hybrid interference filters is made, this review can be used in the design of REE and organization of effective protection from conducted interference.

Keywords: electromagnetic compatibility, protection devices, hybrid filter, ultrashort pulse, conductive interference, common mode, differential mode, modal filtration