| 摘要 |
PROBLEM TO BE SOLVED: To make the secular change very small and improve the reliability as to the operation element sensitivity setting device which adjusts variance in characteristics among connected operation elements. SOLUTION: A pulse signal D with a duty ratio corresponding to a specific control signal C corresponding to the sensitivity of an operation element is outputted from a pulse width modulator 12 and converted by a low-pass filter 13 into a DC signal E of level corresponding to the duty ratio of the pulse signal D; and an analog signal processing circuit 14 adjusts the level of an analog operation signal B outputted from the operation element according to the DC signal E. |
