资 源 简 介
CompensaTIon Free Voltage Regulators： The ConTInuing EvoluTIon of Digital CompensaTIon
电压调节器的反馈与补偿
传统的电源和电压调节器能够产生稳定的输出电压，由于纳入控制回路负反馈。正确实施负反馈的一个主要挑战是提供正确的频率补偿与反馈网络。电压调节器的初始实现采用控制和反馈电路的模拟电路。后来技术的改进使得数字电路能够取代电压调节器和电源中几乎所有的模拟功能。数字电路的加入允许自动补偿算法的发展，以减轻电力设计工程师的负担。自动补偿是一个很大的改善，比传统的拓扑结构，但仍然有一定的局限性，由于电路的要求，以确定补偿参数。数字电压调节器控制器最近的发展创造了“无补偿”的拓扑结构。这些无补偿的设计提供了优越的电压调节，同时消除了与确定补偿参数相关的问题。
Analog voltage regulators
Analog voltage regulators require the design engineer to determine the values for compensation resistors and capacitors and then to solder these components onto the PCB. The selection， placement and modification of the discrete compensation components add delays and risks to power delivery designs. Some vendors simplify the compensation component selection process by allowing the user to select a single resistor and a single capacitor to compensate the regulator. While this option simplifies the user tasks， it reduces the probability that the resulting load current transient behavior of the power supply is acceptable. The design and implementation of analog voltage regulators is a manually-intensive process and thus carries undesirable risks and costs.
