PCB Design and EMC analysis.

On the basis of technical specifications and/or the functional expression of your needs, our experienced team will develop the expected solution converging hardware and software.

Our main developments in electronic are based on microcontrolers, DSP and/or FPGA (implemented in VHDL or in schematic langauge according to the needs).

One main step in the electronic design is to take into account the EMC (electromagnetic compatibility) aspects.

EMC can be defined as the ability of a device, equipment or system to function satisfactorily in its electromagnetic environment without itself introducing electromagnetic disturbances of a to create disorders that could harm the proper functioning of devices or systems located in its environment.

The EMC studies at the equipment level are very widely treated both from the point of view measure than simulation. The designers of embedded systems in the automotive fields, aeronautics commonly deal with these problems, with a tendency towards modeling predictive. This consideration of EMC at the equipment level is reflected more and more at the level of integrated circuits, which can be sensitive or even critical elements of the system. Indeed the integration of more and more functions within the integrated circuits components make it an essential element in the proper functioning of equipment.

The EMC Analysis of integrated is a crucial step in the embedded systems design.

For an EMC Study , the three actors must be identified: the source, the coupling path and the victim.

The European Community defines electromagnetic disturbances in the following way: “these are electromagnetic phenomena capable of creating disturbances of operation of a device or a system. An electromagnetic disturbance can be an electromagnetic noise, an unwanted signal or a change in the environment of propagation itself “. The electromagnetic disturbances can come from sources of electrical energy, transient sources like lightning, but also high radiation frequencies from radio transmitters or radar systems. Thus they can reach electronic equipment, whether stationary or on board vehicles.

The effect of a disturbance if it is intense enough, can cause in the worst case, the destruction of an integrated circuit. In case this circuit is critical to the functionality level of the equipment, it can have a fatal impact.

For a more modest amplitude, the disturbance can induce parasitic voltages and currents which can cause malfunctions within the entire system. The radiated fields will then couple with the structure of the system by different coupling modes and generate electrical noise that can spread to critical components.