Silverstone SST-DA750 Manual Do Utilizador
2
1. General
This is the specification of Model OP650; it is intended to describe the functions and performance of
the subject power supply. This PS/2 650 watts switching power supply with Active PFC (Power Factor
Correction) capability, meets EN61000-3-2 and equips Full Range Input features.
the subject power supply. This PS/2 650 watts switching power supply with Active PFC (Power Factor
Correction) capability, meets EN61000-3-2 and equips Full Range Input features.
2. AC Input Specifications
2.1 AC Input Voltage, Frequency and Current ( Rating: 100V-240Vac, 47-63Hz, 10-5A )
The power supply must operate within all specified limits over the input voltage range in Table 1.
Harmonics distortion of up to 10% THD must not cause the power supply to go out of specified limits.
Harmonics distortion of up to 10% THD must not cause the power supply to go out of specified limits.
Parameter Minimum Norminal Maximum
Max.
Current
Voltage (115V)
90 Vac
100-120Vac
132 Vac
12A
Voltage (230V)
180 Vac
200-240Vac
264Vac
6A
Frequency
47 Hz
50 / 60 Hz
63 Hz
Table 1 – AC Input Voltage and Frequency
2.2 AC Inrush Current
The power supply must meets inrush requirements of any rated AC voltage, during turn on at any
phase of voltage, during a single cycle AC dropout condition, during repetitive On/Off cycling of AC,
and over the specified temperature range. The peak inrush current shall be less than the rating of its
critical components (including input fuse, bulk rectifiers, and surge limiting device).
phase of voltage, during a single cycle AC dropout condition, during repetitive On/Off cycling of AC,
and over the specified temperature range. The peak inrush current shall be less than the rating of its
critical components (including input fuse, bulk rectifiers, and surge limiting device).
2.3 Input Power Factor Correction ( Active PFC)
The power factor at full load shall be
≥ 0.99 at nominal input voltage.
2.4 Input Current Harmonics
When the power supply is operated in 90-264Vac of Sec. 2.1, the input harmonic current drawn on the
power line shall not exceed the limits set by EN61000-3-2 class “D” standards. The power supply shall
incorporate universal power input with active power factor correction.
power line shall not exceed the limits set by EN61000-3-2 class “D” standards. The power supply shall
incorporate universal power input with active power factor correction.
2.5 AC Line Dropout
An AC line dropout of 17mS or less shall not cause any tripping of control signals or protection circuits.
If the AC dropout lasts longer than 17mS the power supply should recover and meet all turn on
requirements. The power supply shall meet the regulation requirement over all rated AC voltages,
frequencies, and output loading conditions. Any dropout of the AC line shall not cause damage to the
power supply. An AC line dropout is defined as a drop in AC line to 0VAC at any phase of the AC line
for any length of time.
If the AC dropout lasts longer than 17mS the power supply should recover and meet all turn on
requirements. The power supply shall meet the regulation requirement over all rated AC voltages,
frequencies, and output loading conditions. Any dropout of the AC line shall not cause damage to the
power supply. An AC line dropout is defined as a drop in AC line to 0VAC at any phase of the AC line
for any length of time.