Specifications

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© 2008-2012 Microchip Technology Inc. DS70323E-page 43-97

Section 43. High-Speed PWM

High-Speed PWM

43

Figure 43-49: Interleaved PFC Diagram

Figure 43-50: Interleaved PFC Operational Waveforms

PWM1

PWM2

PFC Output

I

IN

90V - 265V

Rectifier

I

L1

I

D1

I

Load

I

c

I

S1

I

L2

I

D2

I

S2

When duty cycle is = 50%

When duty cycle is > 50%

PWM1

PWM2

IL1

IL2

(IL1 + IL2)

PWM1

PWM2

IL1

IL2

(IL1 + IL2)