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对定频,推挽,正向和逆变的变换器开关电源中使用的9种变压器和2种扼流圈的功率容量,推导单个表达式。这些表达式包含线圈尺寸和损耗;运行频率和磁通密度;以及值取决于变压器线圈结构和使用的变换器型式的系数。这表达式适用于开关电源的变压器。开关电源的输出电压,靠反馈回路控制开关工作系数达到稳压。 整理出计算好调整率的输出电流范围和每伏匝数的方法,并给出了运算例子。
Derive a single expression for the power capacity of the nine transformers and the two choke coils used in the switching power supplies for fixed frequency, push-pull, forward and reverse converters. These expressions include coil size and loss; operating frequency and flux density; and coefficients that depend on the structure of the transformer coil and the type of converter used. This expression applies to the transformer of the switching power supply. Switching power supply output voltage, the feedback loop control switch operating factor to achieve regulation. Sort out the output current range and the number of turns per volt to calculate the adjustment rate, and give an example of operation.