# Power Circuit Design and Understanding of Constituent Components

Mouser Korea regularly conducts online and offline seminars to assist engineers, and in this webinar, we will share information about power supply circuit design and key components.

Power supplies are essential components required for electrical and electronic circuits to operate, and power supplies themselves are composed of circuits using electrical and electronic components.

In this webinar, we aim to understand the design methods of basic power supply circuits and their operation, and to learn the design methods of power supplies using dedicated ICs, which are the core elements that constitute actual power supplies.

Additionally, power supplies are composed of power supply dedicated ICs for voltage regulation, diodes, inductors, and capacitors.

In other electrical and electronic circuits, inductors and capacitors typically serve as auxiliary components to dedicated ICs.

However, in power circuits, it is no exaggeration to say that inductors and capacitors are critical components whose characteristics determine the performance of the power supply. Therefore, we will examine the role and operation of these two components in power supplies, as well as precautions to consider when selecting components.


Additionally, in electrical and electronic devices, the power supply circuit is the single circuit that consumes the most power outside of the main circuit. To improve the efficiency of power supplies, most power supplies employ switching methods.

While switching methods offer high efficiency, they also introduce many disadvantages associated with switching. A representative disadvantage is noise. While it cannot be completely eliminated, the effects of this noise can be reduced through the component form and PCB mounting methods.

Therefore, we will explore methods to reduce noise when implementing power circuits, albeit in brief.