| 摘要 |
PURPOSE:To prevent the occurrence of a voltage when a switching element becomes ON by connecting a capacitor having the prescribed capacity between intermediate taps of respective saturable reactors thereby suppressing the heat loss when the switching element becomes ON. CONSTITUTION:When a transistor 2 is ON state, a current will flow in a route designated by solid lines, and the energy of a saturable reactor 14 is divided into energy stored in the core of the reactor 14 and energy stored in an air core inductance of a coil. When the transistor 2 is interrupted OFF at this time, the energy stored in the core of the reactor 14 and the energy stored in the coil connected to the power of the inductance and a capacitor 19 are transferred to the capacitor 19. As a result, the voltage of the transistor 2 will not increase due to the reactor 14. When the transistor 2 becomes ON, the current of the capacitor is controlled by the part between the capacitor 19 of the reactor 14 and the transistor 2. |
