eem2am
Banned
Hello,
This concerns LT1509 PFC controller
on page 8 , figure 3 of the LT1509 datasheet, it gives the open loop phase response of the voltage error amplifier.
https://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1142,C1138,P1516,D1119
however the phase is positive.
How can this be, positive phase corresponds to future time, and going round the loop would give a time delay, so the phase should surely be negative ?
thankyou for reading.
This concerns LT1509 PFC controller
on page 8 , figure 3 of the LT1509 datasheet, it gives the open loop phase response of the voltage error amplifier.
https://www.linear.com/pc/downloadDocument.do?navId=H0,C1,C1003,C1142,C1138,P1516,D1119
however the phase is positive.
How can this be, positive phase corresponds to future time, and going round the loop would give a time delay, so the phase should surely be negative ?
thankyou for reading.
