![]() Push–pull outputs are present in TTL and CMOS digital logic circuits and in some types of amplifiers, and are usually realized by a complementary pair of transistors, one dissipating or sinking current from the load to ground or a negative power supply, and the other supplying or sourcing current to the load from a positive power supply.Ī push–pull amplifier is more efficient than a single-ended "class-A" amplifier. ![]() This kind of amplifier can enhance both the load capacity and switching speed. ![]() A Class B push–pull output driver using a pair of complementary PNP and NPN bipolar junction transistors configured as emitter followersĪ push–pull amplifier is a type of electronic circuit that uses a pair of active devices that alternately supply current to, or absorb current from, a connected load. ![]()
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