Can a Voltage Multiplier and Mechanical Commutator Enhance Motor Performance?

AI Thread Summary
The discussion explores the potential of using a voltage multiplier in conjunction with a mechanical commutator to enhance the performance of a DC motor. The user is interested in increasing the no-load RPM and current response of a motor characterized by a high L/R time constant and low RPM. Several circuit diagrams are presented to illustrate the proposed configurations, which involve batteries, inductors, capacitors, and diodes. The effectiveness of these configurations in achieving the desired voltage increase and performance improvement is questioned, prompting a request for feedback on the designs. The conversation centers on the feasibility of these electrical enhancements for motor operation.
kmarinas86
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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
Tags:
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: 
 __-INDUCTOR+__COMMUTATOR ON STEEL SHAFT
 |              |
 |              |
 |__|CAP|_______|
 |      /\      |
 |     /  \     |
 -    /    \    |
BAT D^O    DVO  |
 +  /        \  |
 | /          \ |
 |/______|CAP|_\|

Would that work?

Is the following better?

Code: 
 __-INDUCTOR+__COMMUTATOR ON STEEL SHAFT
 |              |
 |              |
 |__|CAP|_______|
 |      /\       
 |     /  \      
 -    /    \     
BAT D^O    DVO   
 +  /        \   
 | /          \  
 |/______|CAP|_\
 
Last edited by a moderator:
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kmarinas86 said:
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
Tags:
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: 
 __-INDUCTOR+__COMMUTATOR ON STEEL SHAFT
 |              |
 |              |
 |__|CAP|_______|
 |      /\      |
 |     /  \     |
 -    /    \    |
BAT D^O    DVO  |
 +  /        \  |
 | /          \ |
 |/______|CAP|_\|

Would that work?

Is the following better?

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


What about:

Code: 
 __-INDUCTOR+__COMMUTATOR ON STEEL SHAFT
 |              |
 |              |
 |__|CAP|       |
 |      /\      |       
 |     /  \     |
 -    /    \    |
BAT D^O    DVO  |
 +  /        \  |
 | /          \ |
 |/______|CAP|_\|
 
Last edited by a moderator:


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


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

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.
 

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