Computer brush fan as dc generator

[praga_deesan]

Computer brush fan as dc generator
Sir,
I am using renewable soℝurces like wind for my project..
I need to supply 1.5 to 2 v dc to my amplifier circuit and then to load...
I am using computer brush fan as source ...it just gave output upto 2.5v in ideal state when i connected to multimeter in dc mode...but when i give the output of the comp fan to my circuit..it is not working/..

note: My circuit is working well when i gave 1.5v dc supply thru DCRPS..

Please let me know whether the out of computer brush fan is dc or ac...
if dc .,what is the mistake in it..
if AC, then,what will be the design of bridge rectifier..

 

[russ_watters]

It is DC. The problem is almost certainly lack of amperage. Have you checked how much can be supplied vs what you need?

 

[praga_deesan]

Thank you sir,
will amperage vary from 1.5v dc battery to 2v generator..

 

[russ_watters]

will amperage vary from 1.5v dc battery to 2v generator..

Yes.

 

[davenn]

Also open circuit voltage you read with your meter will naturally be higher than the voltage measured when there is a load on that generator

Dave

 

[berkeman]

Computer brush fan as dc generator
Sir,
I am using renewable soℝurces like wind for my project..
I need to supply 1.5 to 2 v dc to my amplifier circuit and then to load...
I am using computer brush fan as source ...it just gave output upto 2.5v in ideal state when i connected to multimeter in dc mode...but when i give the output of the comp fan to my circuit..it is not working/..

note: My circuit is working well when i gave 1.5v dc supply thru DCRPS..

Please let me know whether the out of computer brush fan is dc or ac...
if dc .,what is the mistake in it..
if AC, then,what will be the design of bridge rectifier..

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