![](/images/new-backgrounds/1187852/187852219x1.webp)
Input Requirements
Input Requirements
The following represent the input requirements of the
∙Maximum waveform harmonic distortion shall be less than 5%. The power supply must operate above frequency with both 100~120/200~240 VRMS input voltage ranges.
∙The power supply must operate over both voltage ranges with an outside switch.
The table below shows the
Table A-1. 420-Watt Power Supply Input Requirements
Input | Nominal Frequency | Frequency |
Frequency |
| Variations |
|
|
|
| 50 Hz | 47 Hz ~ 53 Hz |
| 60 Hz | 57 Hz ~ 63 Hz |
Input Voltage | Nominal Voltage | Variation Range |
| 100 ~ 120 VRMS | 90 ~ 132 VRMS |
| 200 ~ 240 VRMS | 180 ~ 264 VRMS |
Input Current | Maximum Input Current | Measuring |
|
| Range |
| 8 A | 90 ~ 132 VRMS |
| 4 A | 180 ~ 264 VRMS |
Inrush Current | The power supply inrush current shall be less than the ratings of | |
| its critical components (including the fuse, rectifiers, and the | |
| ||
Efficiency | 63% minimum (measuring at maximum load, applying nominal | |
| line) |
|
|
|
|