Re: [Gumstix-users] Tiny 12 - 5 VDC powersupply

[Michael M. B. <mmb...@gm...>]

Back on the Gumstix tip, check out some tight little single-voltage
supplies in the $40-50 (qty 1) range.

http://firmtronics.com/rc-products/sbec.php
http://firmtronics.com/rc-products/sbec-industrial.php

They claim:

"SBEC:
- Converts main pack voltage, up to 40 NiCd or 12s Lipos,
   into 5V (or 6V for faster servo performance) suitable for
   up to 8 servos, gyro, receiver, etc.
- Low EMI (suitable for AV systems), short circuit
   protection, small (0.79x0.59 in), light weight 11g/0.39oz."

"SBEC-Industrial:
- Ultra Compact: 23x14x8mm | 0.9x0.55x0.31in
- Wide input range: 5.5V to 60V
- Up to 2.5A continuous output current
- Available in several standard output voltages
- 200kHz switching frequency
- Up to 90% efficient
- 2.5mA operating current; 30=B5A shutdown current"

SBEC stands for "Super Battery Eliminator Circuit" -- all-electric R/C
modelers call regulated supplies "battery eliminators" since
well-designed ones filter the crap the motors put out so it doesn't
make the radio controls malfunction... The "old school" approach was
to have a separate battery for the radio.

No, they're not as good a cost-per-watt as the mini-itx 120 watt 0r
200 watt supplies, but they ought to run a small gumwad AOK... I'll be
finding out pretty soon now and will report.

--
      Michael M. Butler  :  m m b u t l e r  ( a t )  g m a i l . c o m
Churchill once said, "When you're going through hell, KEEP GOING".