Other Parts Discussed in Thread: TIDA-00443
looking to boost follower control circuit in tida-00779 Emitter resistor of Q4(R14) is 13.7K and bottom feedback resistor (R9) is 13K. as per TIDA-00443 it is mentioned that ratio between Emitter resistor and bottom feedback resistor should be 1:2 then why 1:1 ratio is maintained Between those resistors in TIDA-00779 and in TIDA-00443. Because if feedback resistors selected as per boost follower circuit calculations output of pfc stage get reduced by great extent.
