INPUT/OUTPUT SIGNALS PRESERVER CIRCUIT OF AMPLIFICATION CIRCUITS

摘要

An input/output signals preserver circuit of amplification circuits is provided to prevent the attenuation of an input signal and an output signal by increasing input resistance as to an AC input signal and output resistance as to an amplified output signal. An input signal preserver part(30) is connected to an input port of an amplifier unit of an amplifier circuit amplifying an AC input signal, and prevents the attenuation of the input signal by increasing input resistance as to the input signal. An output signal preserver part(40) is connected to an output port of the amplifier unit, and prevents the attenuation of an amplified output signal by increasing output resistance as to the amplified signal, and compensates voltage variation as to the amplified output signal.