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Discussion Starter · #1 ·
I feel certain this request for information has been posted before, but thus far I've not uncovered a particular post.

I would like to know what is a reliable voltage regulator for battery operation. For example, I have two battery packs that each put out 9.8 volts. I would like to connect them together, yet have the voltage output to my locomotives maintained at 12 volts for motors, lighting, decoders, etc.

Any and all help will be appreciated. Thanks . . . .

Ken
 

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Discussion Starter · #5 ·
Hi Tony,

You point is certainly well taken. However I have these two somewhat pricey 9.6 Volt Packs, that are very good, and I would certainly like to put them to good use.

Do you suppose I could get a couple of 2.4 Volt packs, or there abouts, and make 12 volt combinations? That should accomplish my goals if it will work.

Ken
 

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Discussion Starter · #8 ·
Ron and Del - Guys, if this double up forgive me. I think I pushed the wrong key a bit ago.

The battery pack consists of 8 x AA2100mAh batteries that are 1.2 Volt NiMH. So two more cell should bring up to the 12 volts that I desire.

What I will be installing the packs in are a Precision Scale 1:24 K-27 model and two Sunset 1:24 C-16 models - if I can find one more of the last one.

The model will have 12 Volt Faulhaber motors - AirWire900 Decoders - Phoenix Sound - a Lenz Gold decoder to control light features with will have 12 Volt bulbs. Not sure what the total amperage draw will be, so perhaps I should calculate that figure.

Del - I have received a lot of questioning comments when I say decoder. The AirWire remote control unit is called an AirWire900 10AMP Decoder - Model AWD10SS. It can be used for battery power or DCC.

Thank you both for your input. It is appreciated.

Ken
 

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Discussion Starter · #11 ·
Ron - I will definately check this out.

I was thinking Faulhaber had a seperate listing in their book for what is termed the "coreless" motor, but when I just checked the book, I was mistaken. There is a seperate listing for "brushless" motors. Mine came from the micromotor list.

I know the AirWire causes the stock Pittman motor to hum quite annoyingly. Which, according to CVP Al is normal, and a problem they are trying to eliminate with the next generation.

Thanks for the headsup and I will check things out.

Ken
 

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Discussion Starter · #12 ·
Del - It should be no problem with the wiring and soldering. I've done that before.

As for the run time, my layout is a really small indoor one. My main interest is in scratch building models and the electronics, though I do want to run them some from time to time. So a 2 to 3 hour run times are not an issue for me.

I do thank you for the carification on the mAh factor though. That does help with future references.

Ken
 

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Discussion Starter · #15 ·
Tony - I've often wondered if the "brushless" motors and "coreless" motors were one in the same. Thanks for that bit of informaiton.

The Faulhaber motor I have is listed in the micromotor section and not the coreless section. Not sure if that makes a difference or not where the pwm frequency is concerned.

I think I mentioned that the stock Pittman motor hummed terrible when connected to the battery power. Al at CVP said it was the pwm frequency. The Faulhaber does not hum at all.

I added some great knowledge to my storehouse of information from all the replies. I thank everyone.

Ken
 

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Discussion Starter · #17 ·
To Tony - Bob - Et Al,

Afte reading the information on this and some other forums, I made some major decisions and changes in my repowering. I think it in my best interest to move to a 24 volt Faulhaber motor.

The AirWire900 Decoders I have will operate on 24 volts if the J1 Jumper is removed.

That being said, and done, I still need some sort of voltage regulater for voltage coming from the decoder to a couple of lighting features (I think) and I for certain, need a regulator to drop the voltage to 12 in order to supply power to the Phoenix Sound board and a Lenz Decoder for additional lighting features which will use 12 volt bulbs.

I have read some tutorials that indicate a voltage drop and be arranged simply by using resistors. Has anyone tried this and if so, how does it work in practice.

You guys have been great to offer your advice and information. It is appreciated.

Ken
 

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Discussion Starter · #19 ·
Tony or anyone who cares to add to my knowledge. . . .

CVP's suggestion was that I not use the AirWire with any micromotor or coreless motor.

Does that mean the AirWire900 decoder does not have a PMW frequency greater the 5Khz? Where would one find out what the PMW of the decoder is?

I am going to get a Faulhaber micromotor to "experiment" with, to see if any problems develop. I guess time will tell. I am hoping, in time, CVP will find the solution to this problem and offer an upgraded chip for these decoders.

Ken
 

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Discussion Starter · #22 ·
Hi Greg - So far, no buzzing noise from the motor when batter powered through the AirWire. This if with some basic "test stand" stuff though. I am hoping it will continue that way.

Thanks for the heads up on regulator. With a change in plans as to motor selection, I don't think I will need the regulator. But regardless, it's always good to learn something new. Thanks so much . . . . Ken
 
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