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ptc thermistor

Discussion in 'General Electronics Discussion' started by polyal, Jan 14, 2018.

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  1. polyal

    polyal

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    Sep 8, 2011
    can i use a fuse type ptc thermistor as a power tool ( drill )
    heat sensor..so the charging process ceases when the battery pack
    reaches the permitted max temperature allowed by the charger circuitry

    the charging stops when the thermistor exceeds appx 600R
     
  2. kellys_eye

    kellys_eye

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    Jun 25, 2010
    What you do is your business but messing around with charging processes can be either passive (simply doesn't work) or 'active' (where the battery explodes in a spectacular fashion) which is why most chargers - certainly for modern chemistry batteries - are made with some form of 'intelligence' about them i.e. they monitor charge status as well as cell temperature to regulate the charging process.

    Your suggestion seems too simple to be safe and is something I wouldn't recommend either for safety reasons or for longevity of the battery.
     
  3. polyal

    polyal

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    Sep 8, 2011
    i am not suggesting anything i want to replace a faulty thermistor
    please read the post....and what i do is my business...
    so if you dont know dont reply
    regards

    ps thermistors are passive components and modern batteries dont have intelligence
    its the associated active and passive component circuitry that make them more efficient
    and give them longevity and usefulness
     
    Last edited: Jan 14, 2018
  4. kellys_eye

    kellys_eye

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    Jun 25, 2010
    Well, bang goes my attempt at helping......

    You seem quite capable (?) of figuring it out for yourself - carry on.
     
  5. polyal

    polyal

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    Sep 8, 2011
    if i could sort it out myself i wouldn't be on this forum asking for advice ??
    lets hope i can get a sensible response

    to repost my queery :
    can i replace a 'switching' ptc thermistor with a resetting 'fuse' type

    any sensible info would be appreciated
     
  6. davenn

    davenn Moderator

    13,648
    1,884
    Sep 5, 2009
    this is incorrect

    @kellys_eye was setting you on the correct path, you would do well to pay heed to what he said .....

    Dave
     
  7. polyal

    polyal

    12
    0
    Sep 8, 2011
    so you dont know either? ...somebody must be able
    to answer my queery
    CAN I REPLACE A SWITCHING PTC THERMISTOR WITH A RESETTING
    FUSE TYPE.. AS A HEAT SENSOR IN AN ELECTRIC DRILL POWER PACK

    in response to the 2 replies
    Thermistor temperature sensing is one of the most sensitive properties or parameters for industries like petrochemical, automotive, aerospace and defence, consumer electronics, and so on. These sensors are installed into devices with the purpose of measuring the temperature of a medium accurately and efficiently in a given set of requirements
     
  8. Cannonball

    Cannonball

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    50
    May 6, 2017
    Why not replace it with a ptc thermistor.

    You can't out engineer the engineers.
     
  9. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,411
    2,779
    Jan 21, 2010
    YES YOU CAN.

    I WOULDN'T, BUT YOU CAN.
     
    davenn likes this.
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