ABC400 查看數據表（PDF） - Bel Fuse Inc.
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ABC400 Datasheet PDF : 11 Pages
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ABC400 Series
Figure 3: Inrush current, Vin = 230Vac, 90° CH2: Vin (250V/div), CH3: Iin (10A/div)
INPUT UNDER-VOLTAGE
If the sinusoidal input voltage stays below the input under voltage lockout threshold Vi on, the supply will be inhibited. Once
the input voltage returns within the normal operating range, the supply will return to normal operation again.
POWER FACTOR CORRECTION
Power factor correction (PFC) is achieved by controlling the input current waveform synchronously with the input voltage. A
specified PFC controller is implemented in the interleaved transition mode topology giving outstanding PFC results over a
wide input voltage and load ranges. The input current will follow the shape of the input voltage.
EFFICIENCY
The high efficiency (see Figure 4, 5 and 6) is achieved by using state-of-the-art silicon power devices in conjunction with
interleaved transition mode PFC topology minimizing switching losses. Synchronous rectifiers on the output reduce the losses
in the high current output path for ABC400-1012G schottky diode and ultra-fast diode are used as rectifiers for
ABC400-1024G and ABC400-1048G due to the high output voltage level.
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Series1 84.0
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Figure 4: Efficiency vs. Output Power at 230VAC,
ABC400-1012G
Figure 5: Efficiency vs. Output Power at 230VAC,
ABC400-1024G
92.0
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Po (W)
Figure 6: Efficiency vs. Output Power at 230VAC, ABC400-1048G
Series1
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