Correct Answer : Option (C) : DC to DC
Explanation : Choppers refer to a static switch used to provide Variable DC voltage from a constant DC voltage source. It is a DC to DC converters. It can be either step up or step down DC to DC converter. In Step up DC converter, the output voltage is less than the input voltage. It is also known as Buck converter. In step-up, DC converter, which is also called Boost Converter, is opposite to buck converter. There is also a converter based on the combination of these two; it works in both buck and boost mode depending upon operating conditions; this type of chopper is called Buck-Boost Converter.
