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ionic breeze ion transformer diode

Discussion in 'Electronic Repair' started by HarryHydro, Nov 21, 2005.

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  1. HarryHydro

    HarryHydro Guest

    Hi Folks:
    I have two Sharper Image Ionic Breeze units. These worked good
    when they worked. One broke about a year after I bought it, the second
    broke just recently. Actually, they both seem to be making high
    voltage, but now neither are moving air. I suspect the rectifier
    diodes in the transformers are shorted. They both just hiss. The last
    working unit hissed and pumped air, but now it just hisses, like the
    other one. I'm hunting for a supplier for a replacement transformer.
    Also, is it me or do these things suck when it comes to reliability?
    ;-) I did run them 24/7.

    Thanks Folks!
    Harry
     
  2. James Sweet

    James Sweet Guest


    I'd try a microwave oven diode, they're cheap, and most are rated for
    500mA, if you're exceeding that in an ionizer then you've got some
    serious problems.
     
  3. Bob Urz

    Bob Urz Guest

    Does it not sound like a low voltage power supply if he has a fan
    problem? If its a DC fan that's not turning, (look on the fan for its
    voltage), it maybe just simple 1 to 3 amp rectifiers at 600/1000piv.
    Now, it might be possible that the fan sucked in so much crap that
    its froze up. You might be able to clean it out and revive it if that
    was the case. You need to determine if there is voltage at the
    fan and if the fan is full of crud.

    Bob
     
  4. phatty mo

    phatty mo Guest



    They don't use any fans. It's all "Corona Wind".
     
  5. GregS

    GregS Guest

    If the diodes are shorted, I would think a 10KV would
    work. Ionizers usually run up over 5KV. DC Ionic breezes
    can be measured. A Neon lamp with a dual electrode wand
    flashes as electrons are collected. A digital DC voltmeter
    can also be used. Hold one probe with one hand, hold
    the other NEAR but not touching the device. The voltage
    will increase as charges are collected. If it putting out AC,
    there will be no charge collected. I've had trouble lately
    looking for suppliers of suitable transformers. Ozone
    generators use AC, not DC.

    greg
     
  6. They may need to be fast recovery/high frequency diodes.

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
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  7. HarryHydro

    HarryHydro Guest

    Hi! Thanks for the reply! I'd think one of those diode are too slow
    and leaky to rectify this 10kHz or so. Probably too-low voltage, too.
    Maybe a Television flyback diode?
     
  8. HarryHydro

    HarryHydro Guest

    Hi! The ion breeze has no fan. I think just the DC ion movement pulls
    air through it.
     
  9. Yes, a TV or monitor flyback rectifier, if you can find one.

    However, I assume there are high frequency microwave oven HV rectifiers - used
    in inverter-type microwave oven power supplies.

    --- sam | Sci.Electronics.Repair FAQ: http://www.repairfaq.org/
    Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
    +Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
    | Mirror Sites: http://www.repairfaq.org/REPAIR/F_mirror.html

    Important: Anything sent to the email address in the message header above is
    ignored unless my full name is included in the subject line. Or, you can
    contact me via the Feedback Form in the FAQs.
     
  10. Asimov

    Asimov Guest

    "Sam Goldwasser" bravely wrote to "All" (29 Nov 05 13:13:55)
    --- on the heady topic of "Re: ionic breeze ion transformer diode"

    SG> From: Sam Goldwasser <>
    SG> Xref: core-easynews sci.electronics.repair:349883

    SG> Yes, a TV or monitor flyback rectifier, if you can find one.

    SG> However, I assume there are high frequency microwave oven HV
    SG> rectifiers - used in inverter-type microwave oven power supplies.

    Most ion generators have the usual Cockcroft-Walton voltage multiplier
    which boosts the input voltage into the 3 to 4 kilo volt range. Thus
    the rectifiers used don't need to support the whole voltage but only
    that fraction in each step up. It is especially cost effective to use
    lower voltage rectifiers and capacitors. Comparatively speaking a high
    voltage rectifier and capacitor are rather expensive and relatively
    rare components.

    A*s*i*m*o*v

    .... Now touch these wires to your tongue!
     
  11. James Sweet

    James Sweet Guest


    You know, actually I've used microwave oven diodes with high frequency
    and amazingly enough they worked great. I built a replacement doubler
    for an old Electrohome vector monitor, actually I've made several of
    them now using a 10kV capacitor and a pair of microwave diodes, IIRC it
    runs about 20 KHz. Those diodes are rated 12 KV and seem to be very
    robust, only a few dollars too.
     
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