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Old 01-01-2012, 09:09 AM   #1
thargrav
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Default Electric Brew Design

I've been playing with the idea of using the PWM controller I already designed to run a electric brew pot and this is what I came up with so far.

Input is a terminal strip that a 3 wire dryer cord connects to
40A-1 & 40A-2 are two poles of a 220V circuit breaker
The circuit breaker is also the main power on/off switch
The pilot light is a 220V neon light
The power supply is a 12 VDC supply we already ship with our stir plates
The PWM controller is one I already designed
The Heat Full On switch just bypasses the PWM signal to turn the elements 100% on
The disable switched let me turn either element off in case I only want to use one
The Element on lights are 12VDC indicator lights
The element outlets are 30A in case I want to upgrade later.

Any comments? Corrections?

schematic.jpg  
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Old 01-01-2012, 09:12 AM   #2
thargrav
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Originally Posted by thargrav View Post
I've been playing with the idea of using the PWM controller I already designed to run a electric brew pot and this is what I came up with so far.

Input is a terminal strip that a 3 wire dryer cord connects to
40A-1 & 40A-2 are two poles of a 220V circuit breaker
The circuit breaker is also the main power on/off switch
The pilot light is a 220V neon light
The power supply is a 12 VDC supply we already ship with our stir plates
The PWM controller is one I already designed
The Heat Full On switch just bypasses the PWM signal to turn the elements 100% on
The disable switched let me turn either element off in case I only want to use one
The Element on lights are 12VDC indicator lights
The element outlets are 30A in case I want to upgrade later.

Any comments? Corrections?
I just realized the element on lights are wired wrong in the schematic - I'll correct them.
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Old 01-04-2012, 05:50 PM   #3
lorglath
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Check out this thread on implementing a PWM.

http://www.homebrewtalk.com/f170/pwm...us-how-221301/

-Lorg

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