| 摘要 |
PURPOSE:To obtain a compensating circuit of less level change of a synthesized signal, by keeping the sum of an input signal of a linear circuit and an input signal of a nonlinear circuit constant to change levels of both signals simultaneously. CONSTITUTION:An input signal e1 applied to an input terminal is distributed and applied to a linear circuit 14 and a nonlinear circuit 15 through resistances 11 and 12. An output signal e4 of the linear circuit 14 and an output signal e5 of the nonlinear circuit 15 are synthesized by a synthesizer 16 to obtain an output signal e6. Both ends of a potentimometer 13 are connected between input terminals of the linear circuit 14 and the nonlinear circuit 15, and its sliding end 7 is grounded. By adjusting the potentiometer 13, an input signal e3 of the linear circuit 14 and the input signal e4 of the nonlinear circuit 15 are adjusted complementarily to each other to make the arithmetical sum of signals e4 and e5 constant, and thus, the level change of the output signal e6 is reduced. |
