正激DC-DC开关电源环路补偿器的设计

Design of Loop Compensation for Forward DC-DC Switch-mode Power Supply

负反馈环是所有线性电源和开关电源的核心部分,它使电源的输出电压保持恒定。为了实现这一功能,采用误差放大补偿器减小输出电压纹波。本文简单介绍了在不同类型电源情况下选用不同类型的补偿器,以及各种补偿器的优点比较,并针对正激DC-DC开关电源环路补偿的设计举例说明并计算。

Negative feedback loop is the core of the linear power and switch-mode power supply, which makes a constant output voltage. To achieve this function, the error compensation amplifier is used to reduce the ripple. The paper simply introduces the selec- tion of different types of compensation in case of the different types of power supply, compares the merits of various compensation, and for the design of forward DC-DC switching power supply loop compensation, it gives the examples and makes calculation.