| FIGURE 1 |
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| Fig 1— With the standby of topology (a), the battery backup switches in only upon an acline failure. In an on-line UPS (b), the charger-battery-inverter chain powers the load at all times. |
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| FIGURE 1 |
|
| Fig 1— With the standby of topology (a), the battery backup switches in only upon an acline failure. In an on-line UPS (b), the charger-battery-inverter chain powers the load at all times. |
back |