IC693PCM300LTMP

IC693PCM300LTMP  工作频率与变压器、电感器和陶瓷电容器的尺寸有关。虽然较高的工作频率通常与尺寸减小有关，但超过200 kHz至400 kHz的频率可能会增加损耗并降低变压器漏感引起的电压调节。

实际漏感不会继续与变压器设计频率成反比。泄漏电感中储存的能量，L × I2/2，通常被浪费;由于功率是频率×能量，因此通过漏感的功率损耗与频率成比例。

除了功率电平和频率外，变压器引脚排列和间距是通常决定变压器尺寸的其他因素。选择PQ2625便于手动缠绕Rubade多层特氟龙绝缘线。该设计的工作频率为 200 kHz。

IC693PCM300LTMP 在采用肖特基输出整流器的尺寸和功率优化的反激式变压器中，连续导通模式（CCM）通常可提供效率。峰值变压器磁通密度低于0.2 T至0.22 T，峰值负载和输入电压，以避免变压器发热时铁芯饱和。交流峰峰值磁通密度尽可能高，但受到可接受的磁芯损耗的限制;因此，本应用笔记中的设计始于Ferroxcube 0F05铁氧体在0 kHz时的交流峰峰值磁通密度极限为07.200 T至3.3 T。

IC693PCM300LTMP   

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