DC voltage converter, DC voltage conversion method and voltage conversion system

The invention discloses a direct-current voltage converter, a direct-current voltage conversion method and a voltage conversion system, relates to the technical field of voltage conversion, and aims at solving the problems that an existing direct-current voltage converter is not high in safety and too large in power consumption. The DC voltage converter comprises a level shift circuit, a differential generation circuit and an output matching circuit which are electrically connected in sequence. And the input end of the level shift circuit is electrically connected with an external single input pin. The level shift circuit is used for outputting a first control signal and a second control signal to the differential generation circuit based on a driving signal sent by the input pin. The differential generation circuit is used for outputting a first differential signal and a second differential signal after performing delay processing on the first control signal and the second control signal, and dead time exist