The PFS1200-12-054xA is a 1200 Watt AC to DC power-factor-
corrected (PFC) power supply that converts standard AC or HVDC
power into a main output of 12 VDC for powering intermediate bus
architectures (IBA) in high performance and reliability servers, routers,
and network switches.
Displays the CE-Mark for the European Low Voltage Directive (LVD).
•
Digital inrush current control
•
High Efficiency
•
Meets 80Plus Platinum efficiency requirement
•
Universal input voltage range: 90 – 305 VAC
•
High voltage DC input: 180 – 400 VDC
•
Always-On standby output (model dependent):
o
3.3 V
o
Programmable 5 V / 12 V
•
Hot-plug capable
•
Parallel operation with active current sharing
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Digital controls for improved performance
•
High density design: 39 W/in
3
•
Small form factor (WxHxL): 54.5 x 40 x 228.6 mm (2.15 x 1.57 x 8.98 in)
•
I2C communication interface for control, programming and monitoring
with Power Management Bus protocol and PSMI Protocol
•
Over temperature, output over voltage and overcurrent protection
•
256 Bytes of EEPROM for user information
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2 Status LEDs: OK and FAIL with fault signaling
•
High Performance Servers
•
Routers
•
Switches
2
PFS1200 -12-054xA
tech.support@psbel.com
PFS
1200
-
12
-
054
x
A
x
Product Family
Power Level
Dash
V1 Output
Dash
Width
Airflow
1
Input
Options
PFS Front-Ends
1200 W
12 V
54 mm
N: Normal
R: Reverse
A: AC Input
blank: C14 Socket
2
C: C16 Socket
2
H: HVDC Socket
3
1
N = Normal Airflow from Output connector to Input AC socket;
R = Reverse Airflow from Input AC socket to Output connector
2
C14 / C16 AC input connector, input range 90 ~ 264 VAC and 180 ~ 350 VDC
3
Ordering PN: PFS1200-12-054xAH for both AC and HVDC (Anderson 2006G1-BK) input connector,
input range is 180 ~ 400 VDC and 90 ~ 305 VAC
The PFS1200-12-054xA AC/DC power supply is with DSP control, high efficient front-end power supply. It incorporates resonance-
soft-switching technology and interleaved power trains to reduce component stresses, providing increased system reliability and
very high efficiency. With a wide input operational voltage range and minimal derating of output power with input voltage and
temperature, the PFS1200-12-054xA power supply maximizes power availability in demanding server, network, and other high
availability applications. The supply is fan cooled and ideally suited for integration with a matching airflow paths. Both the PFC stage
and DC/DC stage is with DSP control. The DC/DC stage uses soft switching resonant techniques in conjunction with synchronous
rectification. An active OR-ing device on the output ensures no reverse load current and renders the supply ideally suited for operation
in redundant power systems. The always-on standby output, provides power to external power distribution and management
controllers. It is protected with an active OR-ing device for maximum reliability. Status information is provided with front-panel LEDs.
In addition, the power supply can be controlled and the fan speed set via the I2C bus. The I2C bus allows full monitoring of the
supply, including input and output voltage, current, power, and inside temperatures. The fan speed is adjusted automatically
depending on the actual power demand and supply temperature and can be overridden through the I2C bus.
Figure 1. PFS1200-12-054NAH Series Block Diagram