Can you Dcc any 12 v or lower motor

[Shroomy]

Can you Dcc any 12v motor ? Can you Dcc anything lower than 12v if so do you just put resistor on both sides of the power feed ?

[10000]

Turn down the voltage output by the decoder. CV5 top volts CV6 mid volts.

 

Search the web and you should find examples like this one on how to determine the values

 

http://www.sbs4dcc.com/tutorialstipstricks/decodermotorvoltage.html

[TWG]

There are decoders designed for lower voltage motors, which might offer the best solution.  The CT Elektronik DCX65 (3-8V at 250mA and the Doehler & Haass DH06A (6V at 300mA) are examples.

[Phil S]

Busch make a special decoder module giving +/- 0-3V analogue output to function-selected track sections F1,F2,F3,F4 for use with their H0f (z gauge H0 scale) 'Field Railway'/Mine trains.

 

In most loco decoders:

The 'analogue' output voltage to a motor is produced nowadays in a similar, energy efficient manner as came to be used on portable CD players etc.... Purely by the frequency and number of tiny pulses at 'full voltage' (ie 12Vnominal)... which are filtered/smoothed/averaged by the motor windings to whatever 'dc' value is needed for the speed you request.... this is  because transistors are most efficiently used when either ON, or OFF - but get hot when asked to act as 'analogue'/variable resistance devices -  This is one reason why CV5 (when available -not included in the basic Hornby decoder) can effectively rescales the output range of a decoder-  (on our G Scale shunting puzzle we set max speeds to about 1/4- 1/2 normal )

Although a controller may only send a choice of 14, 28 or 128 steps [ which is more than some diesel controllers] - the decoder software can interpolate change requests and generate many more steps internally.  LGB used to describe this in their decoder manuals [especially because LGB MTS controllers only use 14 steps but used 256 or more internally  - so even '1/2 speed' would still use 128 internal steps] - most provide little information in how they work internally 8-(