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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AN3063 датащи(PDF) 19 Page - STMicroelectronics |
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AN3063 датащи(HTML) 19 Page - STMicroelectronics |
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19 / 33 page  AN3063 Test results and significant waveforms Doc ID 16261 Rev 3 19/33 In Figure 24 a startup tentative below the threshold is captured. As visible, at startup the RUN pin does not allow PFC startup. In 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) |
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