A resonant conversion control device with a very low standby power consumption has an AC-to-DC conversion unit, a DC-to-DC conversion unit, a DC-to-DC conversion control unit, and a standby mode control unit. Prior to forming an N-type ion implantation region and a first and a second P0-type ion implantation regions, an oxide layer and a nitride layer are sequentially formed on a substrate and are subsequently patterned to form a protective pattern structure with a specific arrangement with respect to a photodiode and a gate structure of a transfer transistor. And input stage receives the control signal and the reference voltage and generates a modified control signal.