18-09-2018

Air pollution in large cities from buses, cars and mopeds is something that will no longer surprise us in 2018. The fact that more and more electric means of transport are appearing is also a development that is becoming increasingly visible. VEDS Group supports this development and is contributing to an infrastructure for electric driving. At the beginning of this year, for example, a customer of ours introduced the charging systems we had designed for electric cars onto the market. In the meantime, we also lend a hand with the largest electric bus project in Europe, here in the heart of Eindhoven.

43 buses can be charged with an enormous power of up to 1 Megawatt. This creates an environment with a lot of interference in the form of electromagnetic fields, which can cause problems for the control boards located in the vicinity of these power currents. The biggest problems arise when external interference signals are picked up by a PCB, distorting sensitive signals. To ensure that the control of these charging stations continues to work under these electromagnetic fields, VEDS Group develops the control PCBs for our customer.

Applying custom filtering to each signal is only half the work. Bad PCB design ensures that the PCB will serve as an 'antenna' for picking up (and broadcasting) interference signals. Not only will this cause the PCB to not work properly, if at all, but it can also cause problems for other components in the vicinity of this PCB. This is due to the emission of noise signals. Moreover, in many countries a disruptive PCB may not even be marketed. Rules and limits have been established for this, better known as the EMC/CE directive. VEDS Group applies specific layout techniques to ensure that the PCB is shielded from outside interference and the emission of noise signals is prevented. The result: A satisfied and virtuous PCB.