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. 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.
