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Repair / Re: FIX - Parkside Cordless Soldering Station 20V PLSA 20 Li B2
« Last post by Kurets on Today at 01:28:05 am »The temperature sensor in the iron is an RTD at least. I tested it by heating it with another soldering iron and it behaves as expected. I modified mine with 33R extra and got 370C when the LED goes green.
Now I think that in practice it would be nicer to replace the whole circuit. I suspect that the brushless motor controller they are using is only "just" managing to control the temperature and any unexpected behaviours causes it to freak out.
i attempted adding 15R and for some reason this increased the temperature. Similarly, changing the 499R surface mount resistors to different values also upsets the circuit.
Now I think that in practice it would be nicer to replace the whole circuit. I suspect that the brushless motor controller they are using is only "just" managing to control the temperature and any unexpected behaviours causes it to freak out.
i attempted adding 15R and for some reason this increased the temperature. Similarly, changing the 499R surface mount resistors to different values also upsets the circuit.