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12-10-2004 01:19 AM  13 years agoPost 1
Kirt

rrApprentice

Lexington KY

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I know this has been a topic and there are a lot of posts about it but do you think that this will work. I ordered one and I am going to install it this weekend and see if it will work like I want it to. I am hopping that the lights will also be a good indicator under load when I am below 9 volts.

http://www2.towerhobbies.com/cgi-bi...p?&I=LXFBL0&P=0

It is really small if it works I will let you know

here are some of the specs
Ratings: 5V LDO regulator, 2A
Outputs: Universal (Futaba J) connector
up to 5 standard or medium torque servos
Length: 1.30" (33mm)
Width: 0.75" (19mm)
Height: 0.23" (5.8mm)
Weight: 0.2oz (5g)

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12-10-2004 01:44 AM  13 years agoPost 2
BlakeMcBrayer

rrElite Veteran

Georgetown, Ky

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!

I like, might need one myself! looks lighter than my MedUSA and has some pretty lights. I like lights!

Don't come off the throttle untill you see your GOD!

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12-10-2004 01:50 AM  13 years agoPost 3
Rob_T

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It's designed for regulating 2S lipo so you can use 2S lipos instead of nicad for a receiver battery. I wouldn't expect it to hold up any better than a P25 on 3S, and probably worse than the P35.

Would be interested in reports if anyone tries it though.

Rob.

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12-10-2004 03:29 PM  13 years agoPost 4
AndyH

rrKey Veteran

Rockledge, FL

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Rob_T , your wrong dude! The SBEC has a rated input voltage up to 50V. So you can run this thing on a huge LIPO pack. I know guy's that run this thing in Jokers with 3s BIG packs no prob.

It should work just fine a lot better than the CC25's BEC. I just picked one up for my shogie and will test tomorrow. I expect it will work beautifully!

This hobby is like Kryptonite to chicks!

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12-10-2004 10:09 PM  13 years agoPost 5
Max Headspeed

rrVeteran

Sunny (!) Livingston, Scotland

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That's not an SBEC. It's an analogue voltage regulator. An SBEC is a Switching Battery Eliminator Circuit. That thing is exactly what's on a CC phoenix 10 ESC - a 2a BEC that handles 3s (11v). SBEC can do 12s (50v) - give or take a few V.

Max Headspeed.

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12-11-2004 12:34 AM  13 years agoPost 6
playfair

rrKey Veteran

Rochester, NY

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Actually, it looks like there are two 1A linear regulators (7805) in parallel (didn't know you could do that). The other chip must be a comparitor for the LED's. Doesn't look like they used to many other components for cleaning up the output either (not needed?)


The sky is our canvas

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12-11-2004 01:25 AM  13 years agoPost 7
Rob_T

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AndyH, I respectfully disagree. The link is to a regulator device, not the SBEC. My reply was to the link posted, not the SBEC (which is a great device! I know because I've been using one in my Shogun for close to 6 months, and I keep posting here telling people to buy one )

The regulator is rated at 2A, making me think that its using 2 x 1A regulator chips.You cant make out the numbers, but like playfair says, they look like 7805s. (And the connections look right too).

That's more current handling than the P25 (1 x 1.5A chip) but less than the P35( 2 x 1.5A chips). However current isn't the only issue - heat is important too. The regulator looks like its a single layer PCB with no heatsink. Its ability to dissipate heat is probably inferior to either of the ESCs mentioned earlier. If you really want to put one of these into a shogun it would be a good idea to glue a heatsink (some aluminum or copper sheet of a few square inches) to the tops of the 2 regulator chips, being carefull not to let the metal short anything. (Shorting lipos is very bad for your health.)

Rob.

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12-11-2004 03:03 AM  13 years agoPost 8
iron_xl

rrApprentice

Wisconsin

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you can build one for about $3 bucks

GRAVITY SUCKS!

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12-11-2004 03:23 AM  13 years agoPost 9
Rob_T

rrElite Veteran

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Not even $3! The 1.5A version of the regulator (UA7805CKCS) is 52c at Digi-Key - use 2 and you have exactly the same BEC capacity as the larger CC ESCs. Build a thousand (using surface mount) and the price drops to 17.3c each chip.

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