what is the function of this circuit

[fauzanmint]

Hi can anyone explain the function of this circuit in the power section of many projector?
I often find this section broken.

[dick_barton]

Re: what is the function of this circuit

It boosts the incoming rectified voltage. Look up PFC circuits on the internet. There's plenty of information available.

[fauzanmint]

Re: what is the function of this circuit

It boosts the incoming rectified voltage. Look up PFC circuits on the internet. There's plenty of information available.

Ok thank you