| 摘要 |
The present invention relates to a small-signal removal circuit comprising: a constant voltage terminal; a positive constant voltage terminal equipped with the constant voltage terminal; a negative constant voltage terminal equipped with the constant voltage terminal; an input terminal where an input of the positive constant terminal and an input of the negative constant terminal are connected; and an output nod where an output of the positive constant terminal, an output of the negative constant terminal, and a load are connected. According to the present invention, the constant voltage terminal enables only a larger signal than a voltage set in an audio signal voltage from a microphone or a pickup to be transmitted. Accordingly, a small signal can be removed to acquire a simple and clean output signal. In addition, noise, included in the small signal, is removed. A clean signal is amplified by installing an amplifying terminal. |
