"Slope Compensation and Inductor Peak Current" in LTC7821 datasheet
Slope compensation provides stability in constant frequency architectures by preventing subharmonic oscillations at high duty cycles. It is accomplished internally by
adding a compensating ramp to the inductor current signalat duty cycles in excess of 40%. Normally, this results in a reduction of maximum inductor peak current for duty
cycles >40%. However, the LTC7821 uses a scheme that counteracts this compensating ramp, which allows the maximum inductor peak current to remain unaffected
throughout all duty cycles.
Can any one explain why the inductor peak current remains unaffected under slope compensation? How does this work?
The inductor peak current is not at all affected,or the impact is alleviated compared to traditional slope compensation?
thanks