northumber82
Member level 3
Pick a normal amplifier CFP output stage, with a normal Vbe multiplier.
Normally, in a CFP output stage the Vbe must be matched thermically with the output stage driver.
What if not thermal compensated but with a current sense on power output resistor? (0.1-0.47 5W ohm resistor). It is there any schematic about? Any technique? I can't find anything on the net.
I saw an example, the LT1166 that use a current sensing to regulate the bias of the drivers... it uses.. op amp? (not sure)
Here is the LT1166 datasheet (analog official site) https://www.analog.com/media/en/technical-documentation/data-sheets/1166fa.pdf
Anyway, any idea to compensate with current sense?
Normally, in a CFP output stage the Vbe must be matched thermically with the output stage driver.
What if not thermal compensated but with a current sense on power output resistor? (0.1-0.47 5W ohm resistor). It is there any schematic about? Any technique? I can't find anything on the net.
I saw an example, the LT1166 that use a current sensing to regulate the bias of the drivers... it uses.. op amp? (not sure)
Here is the LT1166 datasheet (analog official site) https://www.analog.com/media/en/technical-documentation/data-sheets/1166fa.pdf
Anyway, any idea to compensate with current sense?
