自适应导通时间降压电路的虚拟ESR环路设计

Virtual ESR Design for Adaptive On Time Buck Circuit

由于陶瓷电容极小的ESR的原因,自适应导通时间降压电路在输出全陶瓷电容的情况下,输出电压无法提供足够的同电感电流相位的纹波电压做反馈使用,只能靠虚拟ESR电路提供足够的纹波来做反馈使用,并保证电路的正确工作。本文介绍了一种虚拟ESR电路的设计方式。

Output voltage can＇t provide enough ripple voltage that in output capacitor application of adaptive on time buck circuit due to the a solution to this application that can generate enough in phase ripple circuit design method. phase with inductor current to stable the circuit in the all ceramic very small ESR of ceramic capacitors. Virtual ESR circuit provides to stable the AOT buck circuit. This article provides a virtual ESR