alan tani @ alantani.com fishing reel repair rebuild tutorial Elec motor voltage
Reel Repair by Alan Tani
February 22, 2018, 01:00:07 PM *
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Author Topic: Elec motor voltage  (Read 537 times)
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Tiddlerbasher
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« Reply #15 on: February 07, 2018, 12:58:56 PM »

Resistors are not polarity sensitive. You can fit them whichever way round - they just have a very limited function - they resist.
For a VERY simple explanation of electricity.
Think of plumbing.
Hold a pipe vertically - the distance in height from one end to another is similar to voltage - a potential difference.
Water will flow more quickly through a vertical pipe than one near the horizontal = more voltage means more current for a given wire (pipe)
Now increase the bore of the pipe = less resistance more flow = less resistance more current - amps.
Greate pressure of water - more volts = greater flow = more amps
Simple equations Ohm's Law - Volts (V) = Resistance (R) x Amps (A) or A = V/I or R = V/I also Power (simplified) = V x I
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Gfish
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« Reply #16 on: February 07, 2018, 01:42:27 PM »

Cool. Good visual explaination. Missed what "I" was. Is it = to Watts. Good to know 'bout resistors. Sorry for the thread tangent, Swoffer.
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« Last Edit: February 07, 2018, 01:43:17 PM by Gfish » Logged

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« Reply #17 on: February 07, 2018, 02:21:44 PM »

Gfish, there's no need for a converter. A bridge rectifier does the job of converting the AC to DC.

................Lou
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swoffer
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« Reply #18 on: February 07, 2018, 03:20:52 PM »

AH , thanks so much for all the input guys .

Ive got my head around how these PWMs work now .

I've ordered one off Ebay , $1.72 with free postage , unfreekin believable how they can do it for the price .

Anyway I'll try it and see .

Again thanks for the pointers , I knew I would get good advice here .
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Tiddlerbasher
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« Reply #19 on: February 07, 2018, 05:03:52 PM »

Swoffer - the price thing is easy - big country - billions of people - they make a few cents on each product - they are all trying to make money. Every country has done it at some time or another Undecided
The point is it will do the job Smiley
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Ron Jones
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« Reply #20 on: February 07, 2018, 07:24:11 PM »

Brian has to be correct. If he is using a 3 volt power supply then it's almost got to be a dc motor. An idea, buy a charger and some rechargeable D cells. You know they give you what you want.
Ron
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Ronald Jones
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Tiddlerbasher
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« Reply #21 on: February 08, 2018, 03:42:27 AM »

Ron - my rod wrapper was originally battery powered. Until I finished wrapping some guides - I set the motor speed to slow applied the epoxy and left overnight to set. The batteries died in the night. The epoxy sagged and dripped. It was a royal pita to clean up and redo. After that I fitted a mains power pack.
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swoffer
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« Reply #22 on: February 08, 2018, 04:00:19 AM »

The batteries died in the night. The epoxy sagged and dripped.

Yep , my biggest concern as well with the battery option .
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