在IEEE industrial electronics magazine上面有篇文章他第一句话就是pulse frequencymodulation
(PFM) converters are fast in response and simple in design and implementation because compensation is not required.
(MIE--2010--Adaptive On-Time Converters,L.K. WONG & T.K. MAN)
虽然不是很理解,但是将就可以相信。