A novel Overcurrent (OC) protection methodology applied for flyback converters is proposed. This technique provides the advantage of immunity to input-voltage variation and inductance deviation from production-line manufacturing, making accurate OC available. Experimental results guarantee highly significant improvement based on OC variation of less than 0.733% under universal-line voltage conditions. Moreover, additional components are unnecessary in a real board, so no burden is placed on circuit design. The advantages of the target features have been analyzed in detail through conscientious simulations, and the feasibilities were verified on prototypical circuits.

中文翻译：

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反激式转换器的新型过流方法：改善工业生产中的过流

提出了一种适用于反激式转换器的新型过流 (OC) 保护方法。该技术具有不受生产线制造中输入电压变化和电感偏差影响的优势，从而提供准确的 OC。在通用线路电压条件下，基于 OC 变化小于 0.733% 的实验结果保证了非常显着的改进。此外，在实际电路板中不需要额外的元件，因此不会给电路设计带来负担。通过认真的仿真详细分析了目标特征的优点，并在原型电路上验证了可行性。