KEY VOLTAGE NORMALIZER Russian patent published in 2021 - IPC H02M3/156 

FIELD: electrical and radio engineering.

SUBSTANCE: invention relates to the field of electrical and radio engineering; it is designed for use in the primary links of power supply of energy-intensive functional equipment from the object power grid. The technical result is an increase in energy efficiency and reliability of operation while expanding the scope of use, especially at high power consumption. The key voltage normalizer provides a limitation of the output current when switching on and overloading, as well as a limitation of short-term overvoltages in the key control modes during the transit transmission of the power supply voltage in the nominal operating modes. The key voltage normalizer contains duple key power amplifier 1 (KPA), choke 2 (L), capacitor of the output filter 3 (C), current sensor 4 (CS), voltage sensor 5 (VS), sources of reference voltages 6 and 7 (RV I and RV U), two-channel driver 18 (TCD), threshold subtracting device 12 (TSD), weight adder 13 (WA), relay element 14 (RE), delay circuit 15 (DC), integrating circuit 16 (IC) and input RCD filter 17 (RCD).

EFFECT: technical result is achieved by a set of blocks and connections, including newly introduced delay circuits 15 (DC), integrating circuit 16 (IC), RCD filter 17 (RCD) and two-channel driver 18 (TCD).

1 cl, 5 dwg