| 摘要 |
PURPOSE:To reduce the capacity in terms of electric power and to prevent regulation from deteriorating by obtaining high-voltage power from two high-voltage generating circuits and by balancing those electric power outputs without reference to load fluctuations. CONSTITUTION:Owing to variance in the boosting ratio of FBT, the voltage of FBT61 is to rise above that of FBT74, and a load current is also to increase. Consequently, voltage V1 at one input terminal of operational amplifier 41 further drops negatively and amplifier 41 develops voltage V0. This voltage V0 permits the base potential of transistor TR50 to rise through resistance 56. Therefore, negative feedback is provided to decrease emitter voltage E1 of control TR48, and the output of transformer 61 is to decrease, exercising control until current IB1=IB2 (IB1 and IB2 are currents of transformers 61 and 74). |
