What is a portable power supply?

A portable power supply is a device, that allows you to stay plugged in. It can fully charge your battery-powered devices, during outdoor adventures. Because every electronic circuit needs a power source to operate, it is necessary to possess a ready-to-use power source for prototyping and testing electronics.

Why is power supply design important?

Power supply design plays a very important role within an electronic and embedded system. In this paper, we will discuss the history of power supply, 3 types of power supply designs, power supply topologies and power supply design consideration.

How does a power supply work?

Power supplies appeared with tethered systems which are linked with electrical wire to a fixed electrical installation to transform, rectify and regulate the alternating current (AC) 110 volts/220 volts to another electrical form, +12 volts/+ 5 volts direct current (DC) which will be used by different system modules.

What is a linear regulated power supply?

A power supply which is based on linear regulators, converts and transforms unregulated alternating current (AC) to a constant and stable direct current (DC) even if either the load or input changes. This type of power supply consists of multiple blocks as shown in Figure 7. Figure 7: Linear regulated power supply block diagram

Why do I need a 12V output voltage source?

In this way the full potential of the voltage regulators can be utilized. A 12V output voltage source is also required for other high voltage applications which is boosted from 8.7V from a second voltage booster section. Because it is a power supply board, it does not carry any differential pair or very high speed tracks across the PCB.