David Bodnar does exactly what you are asking and uses two big caps with appropriate electricity routing. He is a member on this site, but a regular at the "other" site and I believe the "other" site has his plans and schematics of what you are requesting to do in archive.
Posts by toddalin
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Posted By Bill Swindell on 02/27/2008 3:25 PM
I never figured out how to handle the reversed polarity when you want to back up.
I told you guys that Dave Bodnar has already figured all of this out and it is included at the "other" site. He did an article in Feb 2006 Give Your Engine the Capacity to Ignore Dirty Track. No sense in reinventing the wheel.
I never figured out how to handle the reversed polarity when you want to back up.
I told you guys that Dave Bodnar has already figured all of this out and it is included at the "other" site. He did an article in Feb 2006 Give Your Engine the Capacity to Ignore Dirty Track. No sense in reinventing the wheel.
That would do it Steve.
I would have posted the schematics, but it's Dave's thing and it is on the other site which is pay for view. I respected both parties by simply alluding to it. Dave is a regular on this site and I figured that if he wanted it posted, he would post it here.
I would have posted the schematics, but it's Dave's thing and it is on the other site which is pay for view. I respected both parties by simply alluding to it. Dave is a regular on this site and I figured that if he wanted it posted, he would post it here.
Posted By SteveC on 02/27/2008 7:02 PM
Posted By toddalin on 02/27/2008 5:31 PM
That would do it Steve.
I would have posted the schematics, but it's Dave's thing and it is on the other site which is pay for view. I respected both parties by simply alluding to it. Dave is a regular on this site and I figured that if he wanted it posted, he would post it here.
Todd
All that I provided was a link to the http://www.trainelectronics.com/ web site that is freely open to anyone with the inclination to enter Dave's name into the search engine of their choice.
Cool!
I only remembered it from his original posting two years ago included on the other site. (See Dave, we do read those. )
So anyway, anyone who wants to implement "hybrid" power, as per the original thread, there is no need to reinvent the "wheel" because Dave has done the legwork for you. Now that doesn't mean that the "wheel" can't be improved upon... /DesktopModules/NTForums/themes/mls/emoticons/whistling.gif
So if this is in fact in the public domain, then we should also include the associated article that describes how to reduce the jack-rabbit starts when power is immediately applied. Both Dave and I use thermisters although slightly differently. Dave uses larger value (10-20 ohms) to notably make trains accelerate over a period of seconds. I use low value thermistors (2.5 ohms) to reduce the wear and tear where my trains do automatic stops/starts. The acceleration is not very noticable, but the intent is to reduce the abuse to the motor and drive train. At four for a $1 and 6.5 amp capacity, they are cheap protection.
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http://www.goldmine-elec-products.com/prodinfo.asp?number=G14789
Maybe others here can find a use for them too. To find out more, visit Dave's site at:
http://www.trainelectronics.com/artcles/capacitor-thermistor-partII/thermistor.htm
Posted By toddalin on 02/27/2008 5:31 PM
That would do it Steve.
I would have posted the schematics, but it's Dave's thing and it is on the other site which is pay for view. I respected both parties by simply alluding to it. Dave is a regular on this site and I figured that if he wanted it posted, he would post it here.
Todd
All that I provided was a link to the http://www.trainelectronics.com/ web site that is freely open to anyone with the inclination to enter Dave's name into the search engine of their choice.
Cool!
I only remembered it from his original posting two years ago included on the other site. (See Dave, we do read those. )So anyway, anyone who wants to implement "hybrid" power, as per the original thread, there is no need to reinvent the "wheel" because Dave has done the legwork for you. Now that doesn't mean that the "wheel" can't be improved upon... /DesktopModules/NTForums/themes/mls/emoticons/whistling.gif
So if this is in fact in the public domain, then we should also include the associated article that describes how to reduce the jack-rabbit starts when power is immediately applied. Both Dave and I use thermisters although slightly differently. Dave uses larger value (10-20 ohms) to notably make trains accelerate over a period of seconds. I use low value thermistors (2.5 ohms) to reduce the wear and tear where my trains do automatic stops/starts. The acceleration is not very noticable, but the intent is to reduce the abuse to the motor and drive train. At four for a $1 and 6.5 amp capacity, they are cheap protection.
http://www.goldmine-elec-products.com/prodinfo.asp?number=G14789
Maybe others here can find a use for them too. To find out more, visit Dave's site at:
http://www.trainelectronics.com/artcles/capacitor-thermistor-partII/thermistor.htm
1 - 4 of 32 Posts
