PUSH-PULL POWER AMPLIFIER Russian patent published in 2024 - IPC H03F3/26 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering and can be used in broadband amplification devices of communication equipment and measuring amplifiers, which are subject to stringent requirements for linearity, out-of-band emissions and intermodulation distortions with high efficiency. Push-pull amplifier with a transformer output is made on the first and second transistors of the same conductivity type, each of which is covered by the current negative feedback circuit through the first and second additional amplifiers, non-inverting inputs of which are connected to outputs of an additional unit for generating unipolar control voltages, wherein transistors 1 and 2 are always in linear mode of operation.

EFFECT: high linearity of the pass characteristic, combined with low out-of-band emissions and intermodulation distortions with high efficiency.

1 cl, 5 dwg