# If I attached a self-made voltage multiplier to batteries + mechanical commutator

1. Sep 26, 2008

### kmarinas86

I saw the following video:

Lecture Series on Electronics For Analog Signal Processing I by Prof.K.Radhakrishna Rao, Department of Electrical Engineering,IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in
Category: Education
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Voltage Multiplier

So I was wondering, is it possible that attaching a pack of batteries coupled with a motor with a mechanical commutator (for a DC electric motor) and a voltage multiplier allow me to effectively increase the voltage of the VDC output in opposite polarity provided that the system has a mechanical commutation?

Say for example I have the following:

Code (Text):

__-INDUCTOR+__COMMUTATOR ON STEEL SHAFT
|              |
|              |
|__|CAP|_______|
|      /\      |
|     /  \     |
-    /    \    |
BAT D^O    DVO  |
+  /        \  |
| /          \ |
|/______|CAP|_\|

Would that work?

Is the following better?

Code (Text):

__-INDUCTOR+__COMMUTATOR ON STEEL SHAFT
|              |
|              |
|__|CAP|_______|
|      /\
|     /  \
-    /    \
BAT D^O    DVO
+  /        \
| /          \
|/______|CAP|_\

Last edited by a moderator: Sep 25, 2014
2. Sep 26, 2008

### kmarinas86

Re: If I attached a self-made voltage multiplier to batteries + mechanical commutator

Code (Text):

__-INDUCTOR+__COMMUTATOR ON STEEL SHAFT
|              |
|              |
|__|CAP|       |
|      /\      |
|     /  \     |
-    /    \    |
BAT D^O    DVO  |
+  /        \  |
| /          \ |
|/______|CAP|_\|

Last edited by a moderator: Sep 25, 2014
3. Sep 26, 2008

### Pumblechook

Re: If I attached a self-made voltage multiplier to batteries + mechanical commutator

I don't follow what you are trying to do?

4. Sep 26, 2008

### kmarinas86

Re: If I attached a self-made voltage multiplier to batteries + mechanical commutator

It's for a motor.

To describe the motor, it has a high L/R time constant and is generally high torque and low rpm. The armature (electromagnet) sits, while the rotor (magnet) interacts with the electromagnet's changing field.

In particular, I am looking to increase the no-load rpm using this system of capacitors and diodes. Also, increasing the voltage should allow the current to rise faster as well.

But to answer my question, you'll have to address what you can tell from the circuit diagrams above.