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en:ztex_boards:ztex_fpga_boards:cluster_power_supplies [2012/02/09 17:25] – stefan | en:ztex_boards:ztex_fpga_boards:cluster_power_supplies [2023/10/30 16:20] (current) – removed stefan | ||
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- | ====== Cluster Power Supplies ====== | ||
- | |||
- | Since ZTEX FPGA Board communicate via USB it is easily possible to build low cost FPGA clusters using USB hubs. For this purpose typically | ||
- | [[http:// | ||
- | |||
- | This article presents some suggestions for the power supply of such FPGA Board Clusters. | ||
- | |||
- | ===== Small clusters ===== | ||
- | |||
- | For small clusters 60W PSUs and 5-waqy DC splitter cables from the online shop can be used | ||
- | * [[http:// | ||
- | * [[http:// | ||
- | |||
- | ===== Large clusters ===== | ||
- | For larger FPGA clusters high efficient ATX PSU's with plugable cables are the best choice. The following guide explains how such a PSU can | ||
- | be modified for an FPGA cluster. | ||
- | |||
- | Requirements: | ||
- | * ATX PSU | ||
- | * power cables with 2.1/5.5mm plug for the FPGA boards, e.g. from [[http:// | ||
- | * bootlace ferrules and a crimp tool (e.g. from Ebay) | ||
- | * luster terminal (e.g. from Ebay) | ||
- | * heat shrink tubing (optional, e.g from Ebay) | ||
- | |||
- | Procedure: | ||
- | - Connect FPGA board power cables (the ones with the 2.1/5.5mm plug) to the cables from PSU. GND wires from PSU (black) should not power more than 3 FPGA Boards and +12V wires (yellow) should not power more than 5 FPGA Boards. (GND wires are more critical in order to reduce current flows through USB cable) | ||
- | - Cut off the HD connector / GPU connector / ATX12V connector (i.e. not the to-PSU plug) from the PSU cable and cut FPGA power cables to the desired length. | ||
- | - Strip off the insulation of the wire ends:\\ {{: | ||