DC to DC converters are extremely important pieces of equipment/devices for use with other devices . DC converters are used with portable electronic equipment such as laptop computers, and cellular/mobile phones, and many other devices whose power is supplied primarily from batteries. These electronic devices will often contain several different sub- circuits and each of these will have its own voltage level requirement, which differs from that supplied from the battery or external supply. DC to DC converters are a way in which to increase the voltage from a lowered battery that results in saving space, so a single battery may be used in place of several batteries to achieve the same result.