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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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AN4346 Fiches technique(PDF) 29 Page - STMicroelectronics |
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AN4346 Fiches technique(HTML) 29 Page - STMicroelectronics |
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29 / 33 page  DocID025107 Rev 1 29/33 AN4346 Electrical waveform 33 3.6 OVP protection to a load disconnection During a load disconnection the HVLED815PF device senses the output voltage through the DMG pin and controls the voltage loop in order to regulate the output capacitor voltage to a level below its maximum rating. As shown in Figure and Figure 44 the converter works in burst mode during no load condition. Figure 41. Load disconnection at 100 Vac - 50 Hz Figure 42. No load behavior at 100 Vac - 50 Hz CH1: DRAIN pin CH2: IOUT CH3: VOUT CH4: DMG pin CH1: DRAIN pin CH2: IOUT CH3: VOUT CH4: DMG pin Figure 43. Load disconnection at 230 Vac - 50 Hz Figure 44. No load behavior at 230 Vac - 50 Hz CH1: DRAIN pin CH2: IOUT CH3: VOUT CH4: DMG pin CH1: DRAIN pin CH2: IOUT CH3: VOUT CH4: DMG pin |
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