| 摘要 |
PURPOSE:To reduce the loss of a snubber circuit by feeding back the energy of a snubber condenser to a power source side. CONSTITUTION:When GTOs 2, 8 are turned OFF and GTOs 4, 6 are turned ON, a load current flows through condensers 42, the GTO6, a load 10, the GTO4 and condensers 44, 42. Then, when the GTOs 2, 8 are turned ON and the GTOs 4, 6 are turned OFF, a load current flows through a condenser 42, the GTO2, the load 10, the GTO8 and the condensers 44, 42. When the switch elements 52, 58 are turned ON, a vibrator which has a snubber condenser 22, the condenser 42, a reactor 46 and the switch element 52, and a vibration which has a snubber condenser 28, the switch element 58, a reactor 48, a condenser 44 are formed, and the energies of the condensers 22, 28 are respectively fed back to the condensers 42, 44. |
