Lambda Debuts NV-350 Configurable Power Supply

Lambda Electronics Inc. (San Diego, CA) announced the new NV-350, a 350 W, configurable ac-dc power supply that combines power density, high efficiency, low noise and EMC performance in a compact design. At 6.6 W/in³, the NV-350 offers performance for space-critical applications in instrumentation, broadcast, medical and high-end IT systems.

A member of the new NV-Power Series, the NV-350 employs patented multiple resonant topology, which uses synchronous rectification to achieve efficiencies of up to 90%. The 350 W power supply comes in a compact 1.6 in x 3.75 in x 10.9 in package, compatible with 1U enclosures as well as 2U and 3U card frames and, at just over 28 oz, weighs 20% less than competitive supplies.

The NV-350 is fully configurable and can provide between one and six outputs, with voltages ranging from 3.3 V to 32 V, and currents up to 40 A; as many as three single- or dual-output modules can be selected. The transformers use a multiple-layer printed circuit board for the primary and a flexible circuit as secondary, a design that yields a high throughput of power and allows Lambda to use rapid configuring techniques in manufacturing the supply.

The NV-350 has no minimum load requirements and is available with a high-power standby output rated at 5 V, 2 A or 12 V, 1 A. Module-good and inhibit signals come standard; ac good, global good and remote on/off are optional.

The NV-350 will be available in June, priced at $400 per unit (with four output configurations) in medium volumes.