| 摘要 |
PURPOSE:To improve the efficiency by returning energy induced in the other exciting windings by energy stored in one exciting winding bi-filar wound through a rectifier to a power source, thereby reducing the heating of an element. CONSTITUTION:When a transistor TR1 is turned ON, an exciting current is flowed from a power source V through a resistor R, an exciting winding A- phase, and a rectifier D6 to the transistor TR1. When the transistor TR1 is turned OFF, an exciting current flowed to the exciting winding A phase is blocked. Here, energy of substantially the same as energy stored in A phase is induced in a direction designated by an arrow in the B-phase exciting winding. This energy is returned through a rectifier D8, the B phase, and the rectifier D11 to a power source V. In this case, the internal resistance of the rectifier D8 is reduced, the heating is reduced, and the energy is returned to the power source V efficiency by the rectifier D11. |
