Fairchild FSQ500L, Руководство пользователя

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© 2011 Fairchild Semiconductor Corporation 11 FEBFSQ500L_H257v1 • Rev. 1.0.1
4.8. Efficiency
4.8.1. Test Condition
Output at maximum load.
Table 8. Test Result
Input Voltage Input Wattage Output Wattage Efficiency
85V
AC
/ 60Hz 3.17W 2.09W 65.93%
120V
AC
/ 60Hz 3.15W 2.09W 66.34%
230V
AC
/ 50Hz 3.691W 2.09W 56.62%
264V
AC
/ 50Hz 3.933W 2.09W 53.14%
Table 9. Test Result
Efficiency
Input Voltage 25% Load 50% Load 75% Load 100% Load Average
115V
AC
/ 60Hz 55.31% 58.88% 64.43% 66.22% 61.21%
230V
AC
/ 50Hz 43.01% 46.97% 50.96% 56.62% 49.41%
4.9. Output Ripple and Noise
4.9.1. Test Condition
Ripple and noise are measured by using a 20MHz-bandwidth limited oscilloscope with a
10µF capacitor paralleled with a high-frequency 0.1µF capacitor across each output.
Table 10. Test Result
Input Voltage Maximum Load Minimum Load
85V
AC
/ 60Hz 16mV 69mV
120V
AC
/ 60Hz 19mV 69mV
240V
AC
/ 50Hz 16mV 53mV
264V
AC
/ 50Hz 16mV 50mV
Figure 19. 85V
AC
/ 60Hz at No Load (Ch 1: V
O
) Figure 20. 85V
AC
/ 60Hz at Max. Load (Ch 1: V
O
)
Ch1
Ch1