Variable speed controller

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listerboy
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Variable speed controller

Post by listerboy » Sun Jul 03, 2016 9:55 am

Would anybody have a circuit board diagram for an electronic speed controller for a loco powered by 8 C cell batteries, powering a Bachmann tram chassis?

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tom_tom_go
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Post by tom_tom_go » Sun Jul 03, 2016 12:19 pm

What ESC are you using?
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Post by listerboy » Sun Jul 03, 2016 1:38 pm

None, I want to build my own!
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Post by KjellAn » Mon Jul 04, 2016 5:06 am

Have a look at the Deltang transmitters and receivers. You may like to build your own Deltang transmitter. The receicers have an integrated ESC. And they are very small.
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Post by listerboy » Fri Jul 08, 2016 3:56 pm

Sorry, I possibly worded that wrongly! I meant a speed controller using a variable potentiometer. Sorry for any confusion caused!
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Post by ge_rik » Sat Jul 09, 2016 7:04 am

You could probably find quite a few circuits on the web by searching for PWM motor controller. However, doing a search on eBay for the same will give you quite a few which are cheaper than you'd be able to make them - especially if you're prepared to wait for one to come from China - eg http://www.ebay.co.uk/itm/361465386236

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Post by ge_rik » Sat Jul 09, 2016 4:58 pm

Or splash out a bit more and you can get one with a direction switch - http://www.ebay.co.uk/itm/182003602041

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Post by listerboy » Thu Jul 21, 2016 5:40 pm

I would rather build one than buy one!
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Post by steam Technology » Thu Jul 21, 2016 11:09 pm

I have built numerous speed controllers for various projects over the years. I built a PWM (Pulse width Modulation) for my 5 inch & to be honest I could have bought a built unit from china for about a quarter of the price.
The main control unit for the HO layout & for a G Gauge layout were Transistor based circuits, but again a complete unit off Evil Bay costs less than the components.
Electronic controllers are the only realistic option, Resistor based units are bulky, highly inefficient & not worth the hassle.
Hope this helps.
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