求一下Middlebrook R.D的这两篇文章

1 Middlebrook R.D. Topics in Multiple-Loop Regulators and Current-Mode Programming

2 An Accurate and Practical Small-Signal Model for Current-Mode Control



不知道哪位达人有这两篇文章,可否共享下,帮师兄找!

不胜感激涕零!

祝各位工作顺利,周末愉快!