Operational amplifier with class-AB+B output stage

Details Operational amplifier with class-AB+B output stage Operational amplifier with class-AB+B output stage

2006-12-05

2006-12-05

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

C330S269000

Reexamination Certificate

active

07145393

ABSTRACT:
An operational amplifier is provided that includes a Class-AB stage and a Class-B stage coupled in parallel with each other to form an output stage. The Class-AB stage is operable to drive an output load. The Class-B stage is also operable to drive the output load and includes a first level-shifting circuit and a second level-shifting circuit. Each of the level-shifting circuits includes a neutralizing transistor.

REFERENCES:
patent: 4206419 (1980-06-01), Yokoyama
patent: 4217556 (1980-08-01), Ito et al.
patent: 4451802 (1984-05-01), Koinuma
patent: 6917246 (2005-07-01), Thompson
patent: 7078976 (2006-07-01), Blednov

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