Showing posts with label AC-DC-Convertors. Show all posts
Showing posts with label AC-DC-Convertors. Show all posts

Tuesday, October 23, 2012

250 watt AC-DC power supply - Artesyn Emerson

A 250 watt, open frame, single output AC/DC power supply in an industry standard 4 x 7 format. This chassis mount power supply has a 85-264 AC volt Wide-range input AC input with power factor correction.

NLP250N-99S12J Artesyn/Emerson

 It is medical rated with an operating temperature range of 0 - 70 °C and up to 86% efficiency. The NLP250N-99S12J is Rohs 6/6 compliant.

250 watt  AC-DC power supply - Artesyn Emerson

Some Specs
  • AC Input - Wide-range Inputs:    85 - 264 AC 
  • Outputs:   - 12 Volts, 21 Amps, 250 Watts.
  • Efficiency:  -  86% 
  • Dimensions (L x W x H) -    7 x 4 x 1.5 in
Sager Power Systems
 
Sager Power Systems is a specialized group within Sager Electronics focused solely on power supplies. They offer over 15,000 world-class AC/DC and DC/DC standard solutions from leading power supply manufacturers, and is able to evaluate and specify standard and value added solutions.

Monday, July 16, 2012

LPT100-M AC-DC Power Supply - Emerson Network Power

This is a Medical Grade Step Down Power supply from Emerson. In a 2x4x1U size, it has integrated  Overload and Overvoltage protection and Class B EMI filter.

LPT100-M AC-DC Power Supply - Emerson Network Power

A 130 Watt supply with a 18 Amp maximum current with triple outputs. It has a Efficiency of around 82% at full load.

Some Specs and Features
  • Input Voltage: 90 V to 264 V 
  • Output Voltage: -15 V to 24 V
  • Medical and ITE safeties
  • Active power factor correction
  • Remote sense
  • EN61000-3-2 compliant
  • Adjustable outputs
Emerson Network Power - Power Converters

Embedded Power designs, develops and manufactures AC-DC Power Supplies and DC-DC Converters.


Friday, July 13, 2012

CAR1248FP front-end power supply - Lineage

Efficient and Compact, the CAR1248FP is a front-end power supply module for distributed power applications.

CAR1248FP front-end power supply - Lineage

 CAR1248FP is a front-end power supplyIt takes an AC input and outputs a regulated single output voltages of 48Vdc. Enclosed in 1U package it has 1200 Watts of power capability.

It has all the protection you need including overvoltage, overcurrent and overtemperature.

Features Include
  • High Power Density (19W/in²)
  • 91% typical efficiency
  • N+1 Redundancy / Hot-Swap Operation
  • 3.3VSB, Active Load Sharing, I²C and PMBus
  • Remote On/Off and Remote Sense functions

Lineage Power - Power Conversion Solutions

"Energy-efficient AC/DC and DC/DC embedded power, indoor/ outdoor energy systems."

delabs Notes

I am writing it here again, i was overwhelmed by the Cherokee Power Supply Design, which i saw in the Tek Logic Analyzer 1240, i was an R&D engineer and also worked on a DMM Option for 2235.

When i came first online i found that Cherokee is part of Lineage, today i find it is part of GE Energy.

Tuesday, September 27, 2011

High Efficiency Step Down Isolated Supply

60W AC-DC adapter, synchronous rectification, fixed frequency current mode PWM controller. Very Low Quiescent Burden, Efficiency above 85%. That's Green.

STMicroelectronics - EVALSTSR30-60W. Synchronous rectification using L6668 and STSR30.

EVALSTSR30-60W: 60W AC-DC adapter

EVALSTSR30-60W: 60W AC-DC adapter

The converter works in both Continuous and Discontinuous conduction mode depending on the input voltage (the circuit has a wide input voltage range) and the output load. The 68-kHz switching frequency provides a good compromise between the transformer size and the harmonics of the switching frequency, optimizing input filter.

The input section includes protection elements (varistor, fuse and NTC for inrush current limiting), a standard Pi-filter for EMC suppression, a bridge and an electrolytic bulk capacitor as the front-end AC-DC converter. The transformer is a layer type, uses a standard ETD34 ferrite core and is designed to have a reflected voltage of 95V. The power MOS is a 700V - 1Ω and a transil clamp network is used for leakage inductance demagnetization.

From STMicroelectronics