ABC200-10XXG Data Sheet
12VDC, 24VDC, 48VDC
5.1 INPUT FUSE
Output
A slow-blow 5A input fuse (5 × 20 mm) in series with live line
inside the power supply protects against severe defects. The
fuse and a VDR form together with the input filter an
effective protection against high input transients.
5.2 INRUSH CURRENT
The AC-DC power supply exhibits an X-capacitance of only
about 1.0 μF, resulting in a low and short peak current, when
the supply is connected to the mains. The internal bulk
capacitor will be charged through a NTC resistor which will
limit the inrush current (see Figure 2 and 3).
Figure 3: Inrush current, V in = 230Vac, 90°
CH1 : V in (200V/div), CH2: I in (20A/div)
5.3 INPUT UNDER-VOLTAGE
If the sinusoidal input voltage stays below the input under
voltage lockout threshold V i on , the supply will be inhibited.
Once the input voltage returns within the normal operating
range, the supply will return to normal operation again.
5.4 POWER FACTOR CORRECTION
Power factor correction (PFC) is achieved by controlling the
Figure 2: Inrush current, V in = 115Vac, 90°
CH1 : V in (100V/div), CH2: I in (10A/div),
input current waveform synchronously with the input voltage.
A specified PFC controller is implemented in the boundary
conduction 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.
5.5 EFFICIENCY
The high efficiency (see Figure 4) is achieved by using soft-
switching LLC technology with boundary conduction mode
PFC topology minimizing switching losses. Synchronous
BCD.G0201 Rev. AA, 04-Feb-2013
Page 4 / 12
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