| 摘要 |
<p>PURPOSE:To enable smooth spinning of a car, by connecting an integrating circuit between an operating point setting circuit and a switching transistor. CONSTITUTION:Signal conversion circuits 53, 63 compare acceleration signals 52a, 62a fed from acceleration signal output circuits 52, 62 with an output from a reference signal generator 70 and outputs a motor drive signal. Drive/reverse setting circuits 54, 64 feed control signals to right or left motor drive circuit 51 or 61 based on the outputs from the signal conversion circuits 53, 63 and switching signal oscillation circuits 54A, 64A. When the electric motor car spins, a speed drop control circuit 1 turns a switching transistor 2 ON to reduce the magnitude of the acceleration signals 52a, 62a. At this time, the switching transistor 2 is turned ON or OFF gradually through function of an integration circuit 4. Consequently, the electric motor car can spin smoothly.</p> |
