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BAID POWER SERVICES PVT. LTD. |
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| Post Date : 18 September 2012 |
| Expiry date : 04 February 2014 |
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| Description |
The role of a power supply is convert the mains voltage into a lower DC voltage which the components can run on. While there are two types of PSUs out there (linear and switching/switch-mode), well just look at switch-mode power supplies (SMPSs) in this article, since they are the only type of power supply used in computers.
A switchmode power supply consists of 8 main stages: The input filtering, primary bridge rectifier, primary capacitors, primary switching transistors, transformers, secondary rectifiers, output filtering and the feedback and protection circuits . In this article, we will look at each of them and discuss what they are for.
Specification:
AC Input : 85 ~ 264 V AC (47-63 Hz) / DC
DC Output : please ref. output specification
Ripple/Noise : Less than 1% Pk-Pk (BW 20 Mhz)
Over Voltage : set at 125% (+/-5%) of output voltage
Withstand Voltage : I/P-O/P : 3Kv.
Line Regulation : +/- 1% on full load
Load Regulation : on main of +/- 1%
Working Temperature : 10~60 Deg.C.
Efficiency : >75% typical @ full rated load
Safety Standard : to comply with UL 1950, IEC 950
Fusing : through MOR/ Glass fuse.
Protection : Overload, Over voltage & Short Circuit Protected.
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| Contact Information |
| BAID POWER SERVICES PVT. LTD. |
152, BLOCK-B, LAKE TOWN,
Kolkata - 700089, West Bengal, India
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