TDK Lambda Americas Inc
TDK World Wide


September 4, 2008 Editorial & Technical Contact:
Mel Berman, Lambda Americas

Lambda Launches Digital Power Supply

SAN DIEGO, CA (September 4, 2008) - Lambda has introduced a new range of digitally controlled modules to its innovative NV-Power family of configurable AC-DC power supplies enabling increased power output of up to 1450W peak rating for 10 seconds. The new modules enable Lambda to satisfy the increasing demand for low-profile configurable power solutions from 350W to above 1000W for broadcast, instrumentation, medical equipment, ATE, automation, routers, servers and security networks.

The new digitally controlled modules incorporate many innovative design features including a new integrated magnetics transformer that allows for small size and increased efficiency. The digital control allows customizations based on the application's requirements (such as modified current- limit or start-up characteristics). Additionally, the input to output isolation meets the 4kVAC reinforced requirements for medical use.nv700

NV-Power employs an 8-bit microcontroller to handle housekeeping routines, replacing the array of comparators, op amps and other discrete components used in less integrated designs. This brings a 50% parts count reduction which in turn allows 40% more board space for power components. With the incredibly high peak power rating designers can realize power densities of up to 19W/in³. All units operate with a input range of 90 - 264VAC.

The NV-350 series provides up to 350W of output power with <180VAC mains, and up to 660W continuous (740W peak for 10 seconds) with >180VAC mains. Up to six user-selectable outputs can be provided in a 1.6 x 3.75 x 10.8-inch package.

While the NV-700 series provides up to 700W of output power with <150VAC mains, and up to 1150W continuous (1450W peak for 10 seconds) with >150VAC mains. Up to eight user-selectable outputs can be provided in a 1.6 x 4.92 x 10.8-inch package.

Lambda's Multi Resonant Topology (MRT) and other EMC improving design features have resulted in meeting Curve B EMC performance with earth leakage current less than 300µA at 264VAC, 63Hz (meeting the requirement for IEC/EN/UL60601-1).

Available with an extensive range of output modules and options, it is possible to achieve a wide range of output voltage and current combinations. All outputs are fully isolated, no minimum load is required and each module features output-good and inhibit control signals.

Of particular note, the new digitally controlled single-output 'C' module is three-slots wide and available with 12V, 15V and 24V outputs offering as much as 400W continuous and up to 600W peak output power for up to ten seconds.

Using the Lambda NV-Power Configurator, designers can create their own configuration online. This tool checks your configuration and offers the optimum solution with fully approved samples available with short lead times.

Cooling is by the choice of either customer-provided-forced-air or via a low noise temperature controlled fan. Outputs covering the 3.2V to 64V range are available as well as 5V/2A and 12V/1A 'ATX-compatible' standby outputs. The NV-Power employs Multiple Efficiency Gain (MEG) technology to produce a class leading efficiency of up to 90% depending upon the configuration.

All supplies in Lambda's NV-Power range meet EN55011/55022 Curve B EMC, are EN61000-3-2 compliant (PFC) and are approved to IEC/EN/UL60950-1 for general purpose applications as well as IEC/EN/UL60601-1 for medical applications and IEC/EN61010-1 for laboratory and process control applications. In addition, the units carry the CE Mark, are fully RoHS-compliant and come with a three-year warranty.

The NV-Power series are available now with prices starting at $214 each in 100 piece quantities depending upon the configuration.

More information about Lambda's NV series is available at:

About Lambda
Lambda Americas is a unit of TDK Corporation (NYSE: TDK), a leading global electronics company ( Lambda has been a major provider of power solutions for over 60 years. The company designs and manufactures a wide range of AC-DC and DC-DC power products for Industrial, Medical, Telecom, Datacom, and Test and Measurement applications worldwide. Additional information is available at 800-LAMBDA-4 (toll free) or 619-575-4400.

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