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EBAY Soldering Iron Station Temperature Controller T12 Handle Circuit Board
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Topic: EBAY Soldering Iron Station Temperature Controller T12 Handle Circuit Board (Read 6256 times)
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paulc
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Posts: 32
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EBAY Soldering Iron Station Temperature Controller T12 Handle Circuit Board
«
on:
June 10, 2015, 11:26:44 am »
Can someone explain the operation of the control circuit?
LINK:
http://www.ebay.com/itm/Soldering-Iron-Station-Temperature-Controller-T12-Handle-Circuit-Board/171716942087?_trksid=p2047675.c100011.m1850&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D31238%26meid%3De227fb723277453d97fd074dff920746%26pid%3D100011%26rk%3D7%26rkt%3D10%26mehot%3Des%26sd%3D221791660204
On the page there is a circuit diagram.
Thanks
Paul
«
Last Edit: June 10, 2015, 02:31:48 pm by paulc
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peter.mitchell
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Re: EBAY Soldering Iron Station Temperature Controller T12 Handle Circuit Board
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Reply #1 on:
June 10, 2015, 02:04:54 pm »
lm358 has big input offset - would not use.
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paulc
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Re: EBAY Soldering Iron Station Temperature Controller T12 Handle Circuit Board
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Reply #2 on:
June 10, 2015, 02:33:49 pm »
I need the explanation of the circuit assuming a zero offset op-amp, then I will look at the offset.
Paul
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GreyWoolfe
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Re: EBAY Soldering Iron Station Temperature Controller T12 Handle Circuit Board
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Reply #3 on:
June 10, 2015, 02:34:19 pm »
Here is a review on a different T12 controller:
It doesn't seem like any of these units are worth anything.
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