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AN3028 датащи(PDF) 17 Page - STMicroelectronics |
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AN3028 датащи(HTML) 17 Page - STMicroelectronics |
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17 / 37 page ![]() AN3028 Burst mode and output voltage ripple Doc ID 16135 Rev 1 17/37 In Table 9 and Figure 21 the averaged value of the efficiency versus load is given (the average has been done considering the efficiency at different values of the input voltage). Table 8. Active mode efficiencies VINAC (VRMS) Active mode efficiency (%) Without self-supply With self-supply 90 79.72 75.18 115 80.75 75.48 150 81.09 74.44 180 80.46 73.00 230 78.83 70.18 265 77.42 68.03 Figure 20. Active mode efficiency vs. VIN a) without self-supply (J2 selected) b) with self-supply (J and J2 not selected) Table 9. Line voltage averaged efficiency vs. load Load (% of full load) Efficiency (%) Without self-supply With self-supply 100 79.43 75.94 75 80.57 75.53 50 79.12 72.63 25 77.59 64.76 |
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