|
Dear Sir/Madam
The world becomes more and more a digital one. Even technologies
which were a domain for analogue technique like the power
electronic are nowadays influenced by digital technologies. The
Age of digital power has begun – Enjoy it with this newsletter!
Wolfgang Patelay
Technical Editor, EPN
600V Trench
IGBTs (International Rectifier)
Designed for motor control applications, the IRGB4056DPbF,
IRGB4061DPbF and IRGB4062DPbF are 600V-rated IGBTs carrying 24,
36 and 48A, respectively, at 25°C for output power ratings of
1.5, 2 and 2.5kW, respectively. Co-packaged with ultrafast
soft-recovery diodes in a TO-220 package, these IGBTs have lower
collector-to-emitter saturation voltage and total switching
energy than punch-through- and non-punch-through-type IGBTs.
Click here
Single-Output DC/DC (C&D Technologies)
Low-output-voltage models have been added to the UWR
7-15W series of high-density, single-output isolated DC/DC
converters. Suitable for use in a wide range of applications -
including high-end telecom, industrial, transportation and military
equipment - the new models provide industry-leading output current
at voltages below 2V in an industry-standard 1x2" package.
Click here
Li-Ion
Manganese Accumulator (Gleichmann)
Lithium-ion manganese accumulator packs with
capacities of 600mAh and 200Ah are now extending Gleichmann's
product portfolio. The accumulators are developed and manufactured
by Batterien-Montage-Zentrum and weigh approximately 40% less than
nickel-cadmium or nickel-metal hybrid accumulators.
Click here
Step-Down Controller (Intersil)
The ISL88 550A integrates a synchronous buck PWM controller, a
sourcing and sinking LDO regulator, and a 10mA reference output
buffer. The PWM generates VDDQ, the LDO generates VTT, and the
reference output buffer generates VTTR. With the combined features,
the device can provide a complete solution for DDR I and II memory
power supplies.
Click here
|
|
 |
|
The Age of Digital Power
Recently, the demand for digital power has increased
significantly. While finer semiconductor-process technologies
enable faster and smaller integrated circuits, they also mandate
lower (and tighter) supply voltages with higher supply currents.
Meanwhile, end-system capabilities continue to rise while their
form factors shrink and the average selling prices of end
systems fall. These factors combine to force the power-supply
designer to create more accurate, faster responding, more
efficient, smaller and lower cost supplies with each end-product
generation. Keith Coffey from Silicon
Laboratories explains in his article in EPN that it is
becoming increasingly hard to address these issues with
analogue-only control solutions.
Click here
Digital power lures system architects, power-supply vendors
Digital power promises to lower overall system-power
costs by improving maintenance costs and reliability, lowering
power-component costs, and simplifying BOMs. To achieve these goals,
designers must add smarts to the traditionally dumb power subsystem.
Technical Editor Margery Conner
shows in her cover story in EDN that digital-power-control and
-management ICs offer help.
Click here
Low-dropout linear regulators deliver constant currents
Linear voltage
regulators offer a simple method of producing a constant current
by connecting a fixed resistor between the regulator's output
and ground nodes.
Budge Ing from
Maxim demonstrates in his Design Idea in EDN how the
positive-output linear voltage regulator,
MAX1818, provides a constant current of 25mA to the load
resistance.
Click here
Line-powered driver lights up high-power LEDs
Using LEDs has
gained popularity as a method of saving power for general-purpose
lighting, but an efficient method for driving them has also become a
necessity. Based on On Semiconductor´s NCP1200A, a 100-kHz PWM
current-mode controller for universal offline power supplies,
describes
Aaron Lager from
Masterwork Electronics
a circuit in his Design Idea in EDN that provides a low-cost,
offline constant-current source for powering multiple LEDs.
Click here
|
 |
|
|
4| Book of The Month |
| |
|
|
Industrial Power Engineering Handbook, by KC Agrawal
Never before has so much ground been covered in a single volume
reference source. This five-part work is sure to be of great
value to students, technicians and practicing engineers as well
as equipment designers and manufacturers, and should become
their one-stop shop for all information needs in this subject
area.
Click here
▪
To
forward this Newsletter to a colleague
▪ To
subscribe to the newsletter and the magazine
Copyright 2006, Reed Business Information.
EPN and EDN Europe are members of the Reed Electronics Group
Reed Business France - 2 rue Maurice Hartmann, 92133 Issy-les-Moulineaux,
France
Tel- +33 (0) 1 46 29 23 60
| 
