| 摘要 |
<p>PURPOSE:To reduce the field system current pulsation component of a DC motor whose field system is divided, by connecting a diode in parallel with, of divided field system coils, the one on the side influenced by DC pulsation. CONSTITUTION:Field system quantity is intermittently controlled by a chopper CH with the first field system coil F1 of a DC motor connected in series with an armature A and the second field system coil F2 inserted into a free wheel diode DF circuit. A free wheel diode DA and a resister RP are connected in parallel with each other to the coil F2 to smooth intermittent current. A diode DB is connected in parallel with the coil F1 to reduce the influence of the pulsation component of first field system coil current IF1 on that of second field system oil current IF2.</p> |
