AC to PoL development kit

5 October 2016 Power Electronics / Power Management

Available from Vicor is an AC to point-of-load (PoL) development kit, enabling power system designers to immediately begin operating and evaluating a complete power system solution.

The ACPoL DKit consists of an AC front-end chassis which receives power from the AC line and delivers up to 400 Watts of power via an isolated, regulated, distribution bus voltage; and a PoL chassis which receives the distribution bus voltage and generates three independent, regulated PoL outputs. One version of the kit features a 24 V d.c. distribution bus, while another features a 48 V d.c. bus. DKits include all necessary ancillary components, including a bus hold-up capacitor assembly and an AC line cord.

The ACFE chassis features Vicor’s AIM 1714 and PFM 4414 modular front-end components, each packaged in a compact, thermally adept, 9 mm thin VIA package. The AIM module provides full-wave rectification, Class B conducted EMI filtering and input surge protection. The PFM, which receives its input power from the AIM, features power factor correction and delivers up to 400 Watts of fully isolated, regulated 24 V or 48 V d.c. for powering downstream PoL regulators.

The AIM/PFM combination enables power systems designers to instantly implement a full-function AC-DC front-end system in a fraction of the space of conventional 1U solutions. And, because the AIM and the PFM are each available in both board and chassis-mount configurations, systems designers can achieve maximum final system density by utilising an available chassis as a mounting and cooling surface.

The PoL chassis features three independent PoL evaluation boards and a power input interface assembly. The power interface receives the regulated 24 or 48 V d.c. power from the ACFE chassis and distributes it to the three PoL evaluation boards. The three PoL evaluation boards comprise, respectively, a 3,3 V, 5 V and 12 V PI33/PI35xx Vicor Cool-Power zero-voltage switched buck regulator, packaged, respectively, in a 10 x 14 mm or 10 x 10 mm LGA SiP package. Capable of achieving power conversion efficiencies up to 96% while operating from a 48 V distribution bus, these regulators enable implementation of low-profile PoL systems with high power density and end-to-end system efficiency.

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