| 摘要 |
<p>PWM control system using transistors for AC generators, provided with a means (6) for setting a dead zone for turning off these transistors simultaneously, and a means for generating a dead zone compensating signal at such time that correspond to the zero point crossing of the value of an AC generator controlling current. The pulse width of a gate pulse signal from the transistors, which are operated by the dead zone compensating signal, is increased or decreased discontinuously to thereby prevent rapid variation in a voltage value from occurring at a zero crossing point of an electric current value of the AC generator.</p> |
