[HomeBrew] Re: off-subject motor speed controller

[eculbert]

Here are some 'bolt on' controllers similiar to what
you need if you want 'ready made'.

I am NOT a customer, just have seen this company grow
over the years, so. YMMV.

http://www.electricvehiclesusa.com/category_s/53.htm

If you use a separate switch to reverse the voltage to
the motor, this might work possibly. almost worth a
shot just price wise. 

http://www.electricvehiclesusa.com/product_p/co-ct-816b9.htm


Not sure what type of motors...pm, brush/brushless etc
it controls, but the price seems right. Supposely
40amps. If so, should handle that motor of yours. 

My advice is from ignorance on scooters and electric
motors, so take it with the 'grain of salt', add
tequila and ice!!

With a 15 amp circuit breaker, most any of these would
do. 

I too am facing climbing aboard with knee problems. Dr
wanted to pump up knee with synvisc, but I cannot
afford the shots. Would shoot me into and through the
Medicare hole..just the shots per year. I have an old
'new?' motor and controller. New in that I wore off
the mold marks on the tire, but it was made in or near
1990. Not for sale, sorry.

73
Another, 

Ed/ke7feg


============+++++++++++++==========

> Date: Thu, 2 Aug 2007 11:52:39 -0700
> From: Edward B Richards <zuu6k at juno.com>
> Subject: [HomeBrew] off-subject motor speed
> controller
> To: homebrew at mailman.qth.net
> Message-ID: <20070802.115239.1388.3.zuu6k at juno.com>
> Content-Type: text/plain; charset=us-ascii
> 
> Good Morning Gang. I apologize for posting an
> off-subject post, but
> obviously I am going to do it anyway. There is such
> a mass of talent on
> these reflectors I don't know where else to go to
> get technical advise.
> Among my problems are bad knees , hips, and back. My
> doctor won't allow
> knee surgery because the anaesthetic would be risky
> for me with my heart
> trouble (CHF). I use an electric scooter to get
> around although I can
> walk short distances. Twice now, the controller for
> the scooter has
> failed. It is an older model and no longer made.
> They are hard to find
> and expensive when you do. The speed is controlled
> by twisting a handle
> grip, like a motorcycle. This goes to a controller
> that allows the
> current to flow to the motor. When the controller
> goes out the motor will
> not run. It is a 24 volt motor with 2 each 12 volt
> batteries in series. I
> don't know the motor current but the whole scooter
> is protected by a 15
> amp fuse that includes a couple of lights. I would
> say 15 amps to be
> safe. I am looking for someone who is able and
> willing to help me design
> a simple controller that I can build. I am thinking
> of a pass transistor
> controlled by a potentiometer. Maybe a DC amplifier
> in between. I don't
> know enough to do it by myself. Thank you.
> 
> 73,   Ed Richards   K6UUZ
> 
> 
> ------------------------------
> 
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> 
> 
> End of HomeBrew Digest, Vol 42, Issue 2
> ***************************************
> 


Hurry up November, already tired of the heat!

AND NOW..........The humidity! 

Ed/ke7feg


       
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