Pre-compliance testing the conducted line emissions of DC supplied circuits

 

It’s quite common for a power supply (PSU) designer to work with a circuit designer to realize a system design compliant with international EMC

regulations. PSU designers will be well aware of the requirement of the power supply to provide clean DC voltage and not disturb the AC mains voltage.

However, they may not have any idea of the noise that can potentially be introduced to the mains through the PSU by the target circuit. Likewise, the

circuit designers (digital or analogue) may not know what attenuation the PSU will provide.

Download PDF to read the full article: