Dc Power Supply Diagram. A lot of 6v supply diagrams. Also identify the type of filter circuit needed for the task low pass high pass band pass or band stop and explain why that type of filter.
The 78xx ics are comprehensively explained for your refernce. Simple dc regulators 12v 15v 30v. A single power supply can provide as many as voltages as are required by using a voltage or potential divider as illustrated in the figure.
A variable dc power supply is very important for electronics projects prototyping and hobbyists.
For obtaining fixed voltage levels 78xx series ics may be employed with the above explained power supply circuits. In both of those circuits current flows through r1 and zener diode d1 which causes a fixed voltage to be developed across d1. For smaller voltages we normally use batteries as a reliable source. The 78xx ics are comprehensively explained for your refernce.