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本文介绍了双反激开关电源的工作原理及其电感变换器的设计计算公式,同时提出了实现二个反激电路同步工作的方法。这种方法是从一个自激变换器中取出一个反馈信号,用于控制另一个反激电路,使其双反激电路同步工作。照此类推,可以实现三个甚至多个反激电源的叠加,达到提高输出功率的目的。最后详细地给出了试验线路和试验结果。
This paper introduces the working principle of the dual flyback switching power supply and the design and calculation formula of the inductor converter. At the same time, it proposes a method to realize the synchronous operation of the two flyback circuits. In this method, a feedback signal is taken from a free-running converter for controlling the other flyback circuit so that the dual flyback circuit operates synchronously. By analogy, the superposition of three or more flyback sources can be achieved, so as to achieve the purpose of increasing the output power. Finally, the test circuit and test results are given in detail.