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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
Power factor correction circuit for regulating operating frequency control circuit of power factor correction circuit and control method thereof, elec

Power factor correction circuit for regulating operating frequency control circuit of power factor correction circuit and control method thereof, elec

Oe, Takumi

Paperback

General Science

Currently unavailable to order

ISBN13: 9798574967263
Publisher: Independently Published
Published: Dec 3 2020
Pages: 26
Weight: 0.19
Height: 0.05 Width: 8.50 Depth: 11.02
Language: English
A control circuit of a power factor correction circuit including two channels, each of which includes a switching transistor, an inductor and a rectification element, includes: an error amplifier amplifying an error of a feedback signal according to output voltage of the power factor correction circuit and target value of the feedback signal and generating an error signal; a pulse modulator generating first and second pulse modulated signals in current critical mode in response to the error signal; a first driver driving the switching transistor of first channel based on the first pulse modulated signal; and a second driver driving the switching transistor of second channel based on the second pulse modulated signal, wherein the pulse modulator switches between a first mode where phase difference between the first and second pulse modulated signals is 180.degree. and a second mode where the first and second channels are exclusively and alternately used.

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