The pulse-phase control system (PPCS) developed is the most optimal one as compared to the known similar devices, including devices based on microprocessors. The PPCS is simple, highly reliable and stable in its characteristics. It has an insignificant asymmetry of pulses controlling (about 1°), with no adjustments in channels where pulses are formed. Besides, it has minimal dimensions, and power required to control thyristors in minimal. Application fields for the PPCS are mentioned.