在设计开关电源时,可通过减小电源开关的占空度来达到限流。其中的一种方法是在误差放大器的输出端引入一个可编程的电压来超控它自身输出的电压。 SG2524通用控制器块的脚4和脚5就起这个作用。但是,在要联接两个以上限流电路的多路输出电源情况下 When designing a switching power supply, current limiting can be achieved by reducing the duty cycle of the power switch. One such method is to introduce a programmable voltage at the output of the error amplifier to override its own output voltage. Pin 4 and Pin 5 of the SG2524 Universal Controller Block serve this purpose. However, in the case of multiple outputs with more than two current limiting circuits to be connected