Sunday, 28 September 2008

SportBEC Switch-mode Battery Eliminator Circuit

I have a battery, I have the motors, I have a speed controller, but I need something that can get power to the the servos efficiently and without frying them. I have chosen to go with the SportBEC option. Here is a little about it... And it is a tiny part, I must say!!!

SportBEC (Battery Eliminator Circuit) powers your receiver and servos much more efficiently than a standard BEC. As many as 8 servos can be powered without worrying about an overheating BEC. SportBEC works great up to very high voltages, and is especially suited for "sport" aircraft and glow conversions. SportBEC is usually a necessity at 4s and above when running high torque or digital servos.

SportBEC's output is selectable between 5V/6V using a small slide switch. The 6V setting gives more speed and torque to the servos, and is especially useful for helicopter flyers. A red LED indicates when 6V is selected.

We use these BECs in our robots for powering our control systems that have high current demands. We will hook up IP cameras, wireless bridges, microcontrollers, etc. and the BEC has no problem with the current demand. Great source for servos too. Since its a switching supply we eliminate the need for multiple batteries, we run everything off of a single 24V source using the BECs for the control and servos instead of having a separate battery or batteries.

Because it is an efficient switching regulator, SportBEC can supply its full rated current of 3.5A all the way up to 33.6VDC.

Many design hours were spent on SportBEC to ensure it does not create radio interference. It uses a shielded inductor and optimized layout, so you can use it without fear of glitching.

SportBEC installs between your ESC and receiver, so you don't have to modify your speed control to disable its internal BEC.

For best results, ensure that the SportBEC is installed at least 2 inches away from your receiver and antenna.

Additional notes: If you are using small servos make sure they can run at 6v. Some sub-micros, notably the Hitec HS-50 and Futaba S3154, can be damaged by a 6v supply.

For even more information about the SportBEC go here or here...

I have uploaded some information about the SportBEC, including the manuals, so it doesn't vanish like so many things on the web do...

A Beginners Guide to Switching Regulators.doc

A Beginners Guide to Switching Regulators.pdf

SportBEC FAQ.doc

SportBEC FAQ.pdf

SportBEC Manual.doc

SportBEC Manual.pdf

Using an External BEC on multiple models.pdf

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