The positive-passive symmetric dual power supply circuit with only five elements

Published:2011/6/24 7:37:00 Author:Seven | Keyword: symmetric, power supply | From:SeekIC

In imported electric apparatus, we often see the figured passive/positive power supply circuit which provides with power for the power amplifier integrated circuit. Its features are as follows: 1. It's easy to make or select the power supply transformer whose secondary coils needn't central heads; 2.The passive/positive power supply is symmetric. 3.The efficiency of the power is high. 4.the structure is simple. The practice proves that on the premise that the power supply transformer has enough volume, it can approximately increase the volume of the capacitance and the turns of the transformer secondary coils, and the circuit is also used in low power audio power amplifier as the positive/passive symmetric dual power supply.



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