An analytic formula of A-(vf) for the negative-feedback amplifier
Fang Tian-shen · He'nan kexue · 2004
A formula of the analytic form A-(vf) of negative-feedback amplifier may be gotten out by circuit analitical method、according to Kirchhoff′s law. This new formula can describe influence of the circuit parameter to A-(vf). It has also proved that there is question the physical limitation in the block diagram method.