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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AN3339 데이터시트(PDF) 25 Page - STMicroelectronics |
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AN3339 데이터시트(HTML) 25 Page - STMicroelectronics |
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25 / 44 page  AN3339 Functional check Doc ID 18449 Rev 2 25/44 Figure 47 and 48 show resonant behavior in the case of mains dip. The L6599A senses the input voltage via the resistor divider connected to the LINE pin. As seen, it is dimensioned to keep the resonant stage on in case of PFC output voltage drop caused by mains dip. Figure 45. OVP at full load and 115 Vac on 24 V output Figure 46. OVP at full load and 115 Vac on 12 V and 130 V outputs CH3: 24 V output CH1: LVG CH2: PFC_gate CH4: Vcc CH3: 12 V output CH1: 130 V output CH2: VDD CH4: Vcc Figure 47. Half cycle mains dip at full load and 115 Vac - 60 Hz Figure 48. Full cycle mains dip at full load and 115 Vac - 60 Hz CH3: 24 V output CH1: HB voltage CH2: PFC_out CH4: MAINS voltage CH3: 24 V output CH1: HB voltage CH2: PFC_out CH4: MAINS voltage |
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