| 摘要 |
PURPOSE:To prevent a high frequency current from radiating in the atmosphere by bypassing the high frequency current by a capacitor to eliminate the current to flow to a stator coil. CONSTITUTION:When energized by a power source, a stator coil 4 is excited, and a rotor coil 1 is intermittently energized through a commutator 2 from brushes 3a, 3b. Thus, the rotor coil 1 is excited so that the rotor starts rotating. A high frequency current due to the spark generated by the contact of the brushes 3a, 3b with the commutator 2 during the drive of the rotor is bypassed by a capacitor 5c connected between capacitors 5a, 5b, 5c and is not supplied to a stator coil 4. |
