| 摘要 |
PURPOSE:To hold a ripple voltage and a voltage regulation down at a small level with a load balancing between a transformer and an amplifier by feeding back an output level difference between the transformer and the amplifier to an amplifier so as to make the gain variable. CONSTITUTION:Difference in the output voltage varied in phase is detected between a transformer 2 and an amplifier 6 to make the output level of the amplifier 6 so that it becomes the same as the output level of the transformer 2 whereby outputs are balanced between the transformer 2 and the amplifier 6. Then, the outputs of the transformer 2 and the amplifier 6 undergoes a full-wave rectification with rectifiers 3 and 7. This lessens the ripple component of a DC voltage drawn from output terminals 5a-5c thereby holding the voltage regulation of the circuits down to that of the transformer 2 itself. |
