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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) 22 Page - STMicroelectronics |
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AN3063 датащи(HTML) 22 Page - STMicroelectronics |
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22 / 33 page  Test results and significant waveforms AN3063 22/33 Doc ID 16261 Rev 3 The event of an open loop is captured in Figure 30 and 31. We can notice the protection intervention, latching the operation of the L6563H. As highlighted in Figure 31 the L6563H is supplied by the HVS circuit, maintaining Vcc value above its UVLO threshold. As mentioned previously, to restart the system, the input power must be recycled. Figure 29. EVL6563H-100W load transient at 115 Vac, 60 Hz, full load to no load CH1: PFC output voltage CH2: PFC_OK (pin #7) CH3: gate drive (pin #15) CH4: Iout Figure 30. EVL6563H-100W open loop at 115 Vac, 60 Hz, full load Figure 31. EVL6563H-100W open loop at 115 Vac, 60 Hz, full load, long acquisition CH1: PFC output voltage CH2: Vcc (pin #16) CH3: gate drive (pin #15) CH4: PWM_LATCH (pin#8) CH1: PFC output voltage CH2: Vcc (pin #16) CH3: gate drive (pin #15) CH4: PWM_LATCH (pin#8) |
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