Analog
Analog ICs have been mostly, but not entirely, replaced by digital chips. Power supply ICs are usually analog chips and are widely used in power systems. The diode is a two-terminal semiconductor that converts or rectifies alternating current (AC) into direct current (DC). Various types of voltage regulators produce a clean DC without ripples and maintain an accurate DC voltage level. Without a voltage regulator, the power supply output voltage changes as DC load current changes.



