MOTM 900 Power Supply

Power Supply

The MOTM-900 is a 3U wide, low-noise linear supply that accepts AC line inputs from 100 to 240VAC 50/60Hz (jumper selected) and outputs +/-15VDC at 800ma. The easy-to-change fuse holder accepts standard 5mm x 20mm fuses. Instead of noisy 3-terminal regulators, the MOTM-900 uses a 723-based design, using a pre-assembled and tested Power-One supply. This makes assembly of the kit fast and almost fool-proof.

Most MOTM modules use a 4-pin connector called an MTA-156. These are "industry standard" connectors that have been in use for over 20 years. The MOTM-900 contains a special PCB that has 12 individual MTA male connectors. A 4-conductor, 18ga wire harness (part number PWR-20, included with each kit) connects the module to the MOTM-900. In this manner, a "star" power distribution scheme is used for lowest noise and avoiding ground loops.
Provides twelve four 4-pin male connectors. Can be expanded with the MOTM-960 distribution board.
Line Regulation: +/-0.05% for a +/-10% AC input change
Load Regulation: +/-0.05% for a 50% load change
Ripple: 5mv peak-to-peak maximum

  • Module does not draw current
  • Ø 5.00 (2 Votes) Average Rating

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3 HP Power
submitted Oct 26th 2012, 10:03 by Squiggletronics | last Change Nov 4th 2018, 20:51 by JohnLRice