My circuit requires a power factor (PF) greater than 0.9, so I chose to use the TPS92075.Its architecture is a buck converter.
After referring to the circuit design example, the PF value of my circuit would vary between 0.8 and 0.9. How can I increase the PF value and stabilize it?
The specifications are as following :
Vin=110V AC
Vo=55V DC
Iout=18mA
for LED lighting
