DKIT-AC-24-POL-00

USER GUIDE UG:501 Development Kit User Guide Mike DeGaetano Applications Engineering Contents Page Features Features 1 nnFrom bulk power distribution to point-of-load in two simple steps Introduction 1 nnUniversal AC input System Overview 2 nnMultiplicity of Point-of-Load options Front-End (FE) Chassis 2 nnSmall size, low profile, easy-to-use, highly flexible Hold-up Bank (HUB) 3 Point-of-Load (PoL) Chassis 3 IMPORTANT NOTICE: Set-Up Instructions 3 Please read this user guide before operating the Vicor Development Kit. The Development Kit is for evaluation purposes only. Compliance testing on the Bill of Materials 5 Development Kit is not permissible. Introduction The AC to point-of-load Development Kit contains a front-end (FE) chassis, a hold-up bank (HUB), and a point-of-load (PoL) chassis. The front-end chassis has chassis-mount versions of the AIM and PFM in a VIA package that provide full-wave rectifi cation, EMI Filtering and power factor correction that may be connected to worldwide AC mains. A HUB is included to provide proper hold up for the PFM. The PoL chassis has an input board and three ZVS Buck Regulator evaluation boards. The input board interfaces with the front-end chassis and HUB to provide a 24V or 48V voltage rail on the PoL chassis. The included ZVS Regulators provide 3.3, 5 and 12V outputs. Please visit www.vicorpower.com for data sheets and more information on the individual products used in the Development Kit. Part numbers can be found in the Bill of Materials on Page 5. UG:501 Page 1 DANGER HIGH VOLTAGE DANGER HOT SURFACE The Development Kit contains exposed hazardous voltages on the Front-End Chassis. The Front-End Chassis may be operating at surface temperatures which may pose a thermal hazard to the operator. Please use caution not to touch the Front-End Chassis unless the power is disconnected and the Front-End Chassis has been given sufficient time to cool. IMPORTANT NOTICE: AC Input Fusing The Vicor Development Kit is meant for bench evaluation purposes only. A power supply with an adjustable current limit must be used when powering the Development Kit. Although a 7A input fuse is installed in the AC cord adapter, this fuse does not meet safety approvals outlined for the AIM and PFM. It is the users responsibility to select proper fusing at the system level to meet the desired application requirements. Please refer to the section titled Input Fuse Selection on page 16 in the PFM data sheet for guidelines on proper fuse selection. System Overview Front-End (FE) Chassis Figure 1 Front-end chassis Vicor AIM and PFM in a VIA package chassis mount modules are mounted on the Front-End Chassis of the Development Kit. The AIM interfaces directly with worldwide AC mains and provides a rectified AC input for the PFM. The AIM combines a bridge rectifier, EMI filter, and surge protection circuitry in an easy to use VIA plastic housing. The PFM in a VIA package is a 400W power factor corrected AC-DC converter operating from a rectified universal AC input which delivers an isolated and regulated Safety Extra-Low Voltage (SELV) 24 or 48V (model dependent) secondary output. These modules are mounted on the Front End Chassis of the Development Kit to showcase their efficient, simple, and cost effective AC-DC solution compliant to IEC 61000-3-2 Class B EMC standard. The metallic stand acts as a heat sink for the AIM and PFM. Please use caution not to touch the Front-End chassis unless the power is disconnected and the front end chassis has been given sufficient time to cool. UG:501 Page 2