Integrated audio amplifier commutable in a bridge or stereo conf

Details Integrated audio amplifier commutable in a bridge or stereo conf Integrated audio amplifier commutable in a bridge or stereo conf

1988-07-06

1989-05-02

Mullins, James B.

Amplifiers

Combined with automatic amplifier disabling switch means

330 84, 330146, 330295, 330307, H03F 368

Patent

active

048272213

ABSTRACT:
An integrated circuit in a seven pin package particularly for audio signal amplification comprises at least two integrated amplifiers selectively commutable in a bridge configuration or in a stereo configuration by means of at least three integrated switches driven by an integrated comparator with threshold set by an internally generated reference voltage and whose input is connected to the SVR pin commonly used to implement the function of common mode signals rejections. The internal commutation between the two selectable configurations is obtained by varying the level of the bias voltage applied to said SVR pin by means of an external voltage divider.

REFERENCES:
patent: 4494077 (1985-01-01), Fukaya et al.

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