2/Theory of Operation
1503-0151-000 3/27/97 2-11
Power Entry Module
Toroid
ac to dc rectifier
• Type Line Filter with ac Connector & 5 X 20
mm Fuse holder
• Maximum leakage current < 5
µ
A @ 250V/50Hz
• Fuses 2A 250V. Slow blowing 5X20 mm
• Approvals UL 1283, CSA C22.2/8, VDE 0565 &
EN 60320
• Type High efficiency toroid
• Power capacity 54.5 VA
• Voltage rating 85-270Vac / 14-45 Vac
• Leakage current 25
µ
A Max.
• Power efficiency 85% - 90% @ 115Vac 60Hz, 60VA
• Safety screen thickness 0.005" Cu.
• Isolation hipot voltage 4KV.
• Thermal fuse
Thermik S01 110
o
C
• Dimension 115 mm diameter x 58 mm thickness
• Weight 4.8 lb
• Mounting method Epoxy center hole 0.5 in. ID.
• Topology Full wave bridge/voltage doubling with
auto/voltage adapter
• Rectifier type GBU8D 8A, 200V
• Peak current surge 300A (JEDEC Method).
• Power efficiency 92% - 95%
• Output filter capacitor 2 x 5600uF 63WVdc, 3.93A allowable
ripple current at 120 Hz, 85
o
C, 2000 hr.
load life at 85
o
C 50V 3.93A 120 Hz rip
• Output ripple voltage < 2.5 Vp-p
• dc output voltage range 24 - 62 Vdc
• Auto-voltage adapting threshold 140/155 Vac
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