Muller Dynamo

[k4zep]

Hi Romerouk,

Just a curiosity how much power you actually have available there.  You can't load down your switcher power supply/regulator due to its current capabilities, but you could put a load across the Cap ahead of the supply (I think you mentioned a 50 watt load at one time)  and keep loading it down till you had it down to about 6-7 volts at 12VDC into the motor from the switcher and it would show how much power is really available!  I suspect more than you think.  Monitor motor current, load current ahead of cap and system voltage at cap and motor, load it till the voltage at cap starts falling off, if that is possible.  Just a suggestion but don't burn out your gen. coils or bridge diodes.

Working like heck, getting parts that I don't have ordered, going through my junk box looking for a good quiet low power drive motor, of course, pulse driver is always an option but as you stated, probably not needed.  I'm a slow builder, think a lot, doodle a lot on paper, put everything I see into it, then build.  Again congratulations again for giving the world of OU builders something to really think about.

There are some great builders out there, I look forward to their efforts!!!!!

Just looked at my post and above and realized 3-4 people are thinking the same thing........this list is moving FAST!

Ben K4ZEP

[Groundloop]

You can also build your own DC to DC regulator.
LM338 can handle 5 Ampere if on a heat sink.

Look at the LM338 data sheet. There are application examples
for 10 Ampere and 15 Ampere regulators also.

GL.

[poynt99]

I agree with Ben.

A comprehensive load test would determine what it's capable of. If the output is capable of double or triple the input power, replication could be greatly simplified.

Driven with a relatively-efficient DC motor, all the stator coils could be dedicated as output coils, and their combined outputs looped back to the drive motor, either directly, or through some type of regulator such as a DC-DC converter.

.99

[poynt99]

You can also build your own DC to DC regulator.
LM338 can handle 5 Ampere if on a heat sink.

GL.

HI GL.

As this is a linear regulator, it can become quite inefficient if the input voltage exceeds the output voltage by a degree.

Although a linear regulator is an option, a much better one is probably to stay with a switching DC-DC converter, as the efficiency is relatively constant over the entire output voltage range. I believe the Maplin converter Romero is using is in fact a SMPS (switched-mode power supply, "buck-mode") variety. P/N: SDR-3000 by VANSON.

.99

[Aedini]

Hi Romero:
    I really want to know you are using the DC - DC converter is what the internal structure?
    -------------------------------------------------------
    I am very worried about hidden inside a battery.
    -------------------------------------------------------
    Very much hope that you can use facts to eliminate my doubts.

    If you have offended, please forgive, because so far no one has successfully copied.