AUDIO AMPLIFIER WITH RF INTERFERENCE SUPPRESSION FUNCTION

摘要

The present invention is related to an audio amplifier with RF interference suppression function, mainly comprising at least one amplifying unit and a speaker. The amplifying unit comprises a first input end, a second input end and an output end, in which a feedback circuit is presented between the first input end and the output end. The feedback circuit is provided therein with at least one resistor and at least one capacitor, in which the resistor is situated between the first input end and the output end, while one end of the capacitor is connected to the feedback circuit. RF signals entering from the speaker may be filtered out through the provision of the resistor and the capacitor in the feedback circuit. Thereby, interference generated on the audio amplifier due to RF signals is suppressed.

主权项

1. An audio amplifier with RF interference suppression function, comprising:
at least one amplifying unit, comprising a first input end and an output end; a feedback circuit, situated between said first input end and said output end; at least one filtering unit, provided in said feedback circuit and used for filtering out RF signals; and a speaker, connected to said output end of said amplifying unit.