Low-frequency amplifier

Details Low-frequency amplifier Low-frequency amplifier

1987-10-01

1989-01-17

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including push-pull amplifier

330273, H03F 330

Patent

active

047990279

ABSTRACT:
The invention relates to a low-frequency amplifier with an integrated push-pull B final stage and a circuit for adjusting the quiescent current. The invention resides in the amplifier comprising two circuits for adjusting the quiescent current which are provided for different voltage ranges of the supply voltage. An electronic switchover device ensures automatic activation of that circuit for quiescent current adjustment which is suited for the respective voltage range.

REFERENCES:
patent: 4077013 (1978-02-01), Morez et al.
Karl-Ernst Reinarz, NF-Leistungsverstaerker, Radio Mentor Elektronic, pp. 114-118, 1972.

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