A switch mode power supply, is the base of almost all electronic equipment. But a power supply is not a ideal component, it has ripple and noise, produces heat, makes noise, and produces electromagnetic fields. This can influence the performance of the complete system. In this lecture, these topics will be addressed. At SFC Energy we focus on supporting customers in markets like laser, analytical and semiconductors. We are looking forward to discuss with you how we can support your power supply solutions.