T
treez
Guest

Hello,
In the LT1248 PFC controller datasheet,
page 7 (bottom left of page) says that the current amplifier of the LT1248 PFC controller should be compensated to have a gain of >250 at twice the line frequency (100Hz).
However, the schematic on page 7 shows that the current amplifier stage there is compensated to have a gain of just 79 at 100Hz.
This is well under 250, so have they got this wrong?
LT1248 datasheet:
http://cds.linear.com/docs/en/datasheet/1248fd.pdf
In the LT1248 PFC controller datasheet,
page 7 (bottom left of page) says that the current amplifier of the LT1248 PFC controller should be compensated to have a gain of >250 at twice the line frequency (100Hz).
However, the schematic on page 7 shows that the current amplifier stage there is compensated to have a gain of just 79 at 100Hz.
This is well under 250, so have they got this wrong?
LT1248 datasheet:
http://cds.linear.com/docs/en/datasheet/1248fd.pdf