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Forum: µC & Digital Electronics How do I reduce the heat of this paraffin wax heater?


Author: Young Makiyoung (makiyoung)
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Can anyone suggest how I might go about figuring this thing out so I can 
lower the final temperature of the heater? It has one heat to melt the 
wax, and then another to maintain it.

Pictures are here: http://imgur.com/a/BeN1v I flipped the back image 
horizontally so that the traces would line up with the components on the 
front in the pictures. The red dot in the top right is the same hole in 
both pictures.

Here is the lm324n date 
sheet:http://www.componentschip.com/details/Texas-Instru...



Any advice you may have will be much appreciated.

Note: I originally posted this in r/electronics before realizing you 
guys were here.

Edit: In the interest of helping others decipher this in the future...

Here's some info I'm using to come up to speed with these things:

Author: ● J-A VdH ● (Company: FULL PALATINSK) (desinfector)
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looks like a system with phase-fired controller,
pretty much the same like in dimmer-switches for lamps,
where U can adjust the brightness.

To reduce the heat the phase should be cut off earlier
than in the actual state of the heater

Author: W.A. (Guest)
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● J-A V. wrote:
> looks like a system with phase-fired controller, ...

Why do you think, that it is not a burst-fired controller?

A schematic of the circuit would be helpfull.

Author: ● J-A VdH ● (Company: FULL PALATINSK) (desinfector)
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W.A. wrote:
> Why do you think, that it is not a burst-fired controller?

oh silly me, it looks really more like a burst-fired controller,
as it is a heater anyway.

schematics can be "re-engineered"
by looking at the datasheets of the components used in this circuit.
there U can determine the pinouts of the IC and the Thyristor.

Author: W.A. (Guest)
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Young M. wrote:
> Can anyone suggest how I might go about figuring this thing out so I can
> lower the final temperature of the heater?

You may add a small heater to fool the heat sensor ;-)

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