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产品：串入并出扩展板；应用：LED灯条、LED点阵、辉光管驱动外观：黑色PCB。规格：双面全贴片设计，共6片74HC595，可以扩展出48个接口。可直接驱动LED，或者接高压三极管驱动辉光管。

本帖主要内容围绕基于uc3843的降压型开关稳压电源的设计制作展开，分为三部分：1、电流模式pwm信号源搭建2、真正可行的绕开电流环，进行单环控制的方法3、集成高端mosfet栅极驱动器的应用一

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