文件資料管制 文件資料管制 文件資料管制 All rights reserved 2U 550W Redundant Power Supply

文件資料管制 文件資料管制 文件資料管制 All rights reserved

文件資料管制 文件資料管制 文件資料管制 All rights reserved

文件資料管制 文件資料管制 文件資料管制 All rights reserved

£?Hife*K«mpg&H]FSP TECHNOLOGY INC.1. REVISION LOG This section contains the release history of this document:

文件資料管制 文件資料管制 文件資料管制 All rights reserved 2. GENERAL SCOPE This specification describes the performance characteristic of a 550W AC-DC switching redundant power supply. The power supply shall be able to operate as a single supply or in a 1+1 parallel hot-plug able operation with active load sharing in a 1+1 redundant configuration. 2.1 Mechanical Overview The physical size of the power supply enclosure is intended to accommodate the power range of up to 550W. The physical size is 83.8mm x 76mm x 250mm (height x width x length). Figure 1 – Power Supply Dimension

The power supply shall have two LED for indication of the power supply status. Table 1 - LED Status Information The power supply shall operate within all specified limits over Aop Altitude range. The change pressure condition shall not harm the power supply and the operation within specified regulations shall be assured. The power supply shall withstand Altitude storage specified in Anon-OP without any damage.

The maximum input current defines the maximum possible input current to ensure the proper function of the power supply to meet all defined specifications.

An AC line dropout is a transient condition defined as the AC input to the power supply drops to 0 VAC at any phase of the AC line for any length of time. During an AC dropout the power supply must meet dynamic voltage regulations requirements. An AC line dropout of any duration shall not cause dripping of the control signals and protection circuits. If the AC dropout lasts longer than the holdup time, the power supply should recover when VAC meets VACrecover and meet all turn on requirements.

An input dropout of any length shall not cause any damage to the power supply. Table 8 - Hold-up time until Power output goes out of regulations 3.1.10.1 Electrical Discharge Susceptibility The power supply shall comply with the limits defined in EN 55024:1998 using the IEC 61000-4-2:1995 test standard and performance criteria B defined in Annex B of CISPR 24. 3.1.10.2 Fast Transient/Burst The power supply shall comply with the limits defined in EN55024:1998 using the IEC 61000-4-4:1995 test standard and performance criteria B define in Annex B of CISPR 24.

The power supply shall comply with the limits defined in EN55024:1998 using the IEC61000-4-3:1995 test standard and performance criteria A defined in Annex B of CISPR 24. The power supply shall be tested with the system for immunity to AC Ring wave and AC Unidirectional wave, both up to 2kV(Differential mode 1K,Common mode 2K), per EN55024:1998, EN 61000-4-5:1995 and ANSI C62.45:1992. The pass criteria include: No unsafe operation is allowed under any condition; all power supply output voltage levels to stay within proper spec levels; No change in operating state or loss of data during and after...

文件資料管制 文件資料管制 文件資料管制 All rights reserved level 3 requirements for surge-withstand capability, with the following conditions and exceptions: • These input transients must not cause any out-of-regulation conditions, such as overshoot and undershoot, nor must it cause any nuisance trips of any of the power supply protection circuits. The surge-withstand test must not produce damage to the power supply. The supply must meet surge-withstand test conditions under maximum and minimum DC-output load conditions. Power Recovery The power supply shall recover automatically (auto recover) after an AC power...

Table 13 - Output Power and Current Ratings Ripple and Noise is defined in table 15. Ripple and Noise shall be measured over a Bandwidth of 20Hz to 20MHz at the power supply output connector. A 0.1pF ceramic capacitor and 10pF of tantalum capacitor shall be placed at each point of measurement. The measurement points shall be as close as possible to the point of load. The ripple and noise specification shall be met over all load ranges and AC line voltages with 1+1 power supplies in parallel operation.

£?Hife*K«mpg&H]FSP TECHNOLOGY INC. Output The power supply shall operate within specified limits and meet regulation requirements for step loading and capacitive loading specified below. The load transient repetition rate shall be tested between 50Hz to 5kHz at duty cycles ranging. The load transient repetition rate is only a test specification. The A step load may occur anywhere within the MIN load and the MAX load. This shall be tested with no additional bulk capacitance added to the load. Table 16 - Transient Load Requirements The power supply shall be unconditionally stable under all line/load/transient...

文件資料管制 文件資料管制 文件資料管制 All rights reserved Residual Voltage Immunity in Standby mode The power supply should be immune to any residual voltage placed on its outputs (typically a leakage voltage through the system from standby output) up to 500mV. There shall be no additional heat generated nor stressing of any internal components with this voltage applied to any individual or all outputs simultaneously. It also should not trip the protection circuits during turn on/off. The residual voltage at the power supply outputs for no load condition shall not exceed 100mV when AC voltage is applied. 3.2.11...

*Tvout_rise :The 5Vsb output rise time shall be 1ms to 25ms.

文件資料管制 文件資料管制 文件資料管制 All rights reserved TAC_on_delay Tsb_on_delay PWOK Tpwok_off Tpson_pwok AC turn on/off cycle PSON turn on/off cycle Figure 2 – Turn On/Off Timing (Power Supply Signals) 3.3.2 Any output overshoot at turn on shall be less than 10% of the nominal output value. 3.3.3 Any output shall not undershoot at turn on or off cycle under any circumstances. 3.4 Control and Indicator functions The following section define the input and output signals from the power supply. Signals that can be defined as low true use the following convention: Signal# = low true. 3.4.1 PSON# Input Signal...