| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an amplifier circuit operated by a single power source, which includes a capacitor for DC component removal and nonetheless outputs a low-frequency component without reducing it. Ž<P>SOLUTION: By utilizing characteristics wherein monaural audio signals having the same phase and the same amplitude level are included in low-frequency components of a left audio signal and a right audio signal, polarities of output terminals to which a left audio load and a right audio load are connected, are inverted and at the same time, a common capacitor for DC component removal is connected to terminals, to which the loads are connected, of different polarities. Thus, a low-frequency component of a voltage to be supplied to the left audio load and the right audio load is not affected by the capacitor, so that the low-frequency component can be prevented from being reduced. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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