Heat-exchange cooling device and power supply circuit driver used therefore

A heat exchange cooler capable of eliminating continuous radiation of high-frequency noise waves and reducing the man hour for the installation work, and a power circuit driving device used for it are provided. A commercial power transformer, which transforms commercial AC power supplied from a heat generating element storing box to a specified range of voltage, is provided. Moreover, first relay and second relay are used for automatically switching a plurality of taps disposed at the coil of commercial power transformer which keeps a wide range of commercial AC voltage from 200V to 250V in nominal voltage within a specified range of output voltage.