AN3063 datasheet(19/33 Pages) STMICROELECTRONICS

Part #	AN3063

Description	100 W transition-mode PFC pre-regulator with the L6563H

PDF	33 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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19 / 33 page

AN3063

Test results and significant waveforms

Doc ID 16261 Rev 3

19/33

Figure 24 a startup tentative below the threshold is captured. As visible, at startup the

RUN pin does not allow PFC startup.

Figure 25 and 26 the waveforms of the circuit during operation of the brownout protection

are captured. In both cases the mains voltage was increased or decreased slowly. As

visible, both at turn-on or turn-off there are no bouncing or starting attempts by the PFC

converter.

Figure 24.

EVL6563H-100W startup attempt at

80 Vac, 60 Hz, full load

CH1: PFC output voltage

CH2: Vcc voltage (pin #16)

CH3: RUN (pin #12)

CH4: gate drive (pin #15)

Figure 25.

EVL6563H-100W startup with slow

input voltage increasing, full load

Figure 26.

EVL6533H-100W turn-off with slow

input voltage decreasing, full load

CH1: PFC output voltage

CH2: Vcc (pin #16)

CH3: RUN (pin #12)

CH4: Gate drive (pin #15)

CH1: PFC output voltage

CH2: Vcc (pin #16)

CH3: RUN (pin #12)

CH4: Gate drive (pin #15)

AN3063 Datasheet(PDF) 19 Page - STMicroelectronics