Telephone circuit comprising a class-b amplifier

Details Telephone circuit comprising a class-b amplifier Telephone circuit comprising a class-b amplifier

H - Electricity

04

M

379/82

H04M 1/60 (2006.01)

Patent

CA 1219982

ABSTRACT: Telephone circuit comprising a class-B amplifier. The telephone amplifier of an audio transmission circuit comprises a class-B output stage as a result of which the required supply current of this amplifier is considerably lower than with prior art telephone amplifiers. A distorting voltage produced by the current signal in the supply current of the glass-B output stage does not affect the output signal of the telephone amplifier because the input stage and the output stage each comprise their own setting circuits which produce mutually independent setting voltages. Fig. 2.

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