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need test circuit for the real Power MOSFET Specifications

20 Maj 2011 18:19 3073 3
  • Poziom 16  
    hi please help
    i need test circuit for the real Power MOSFET Specifications
    i faced problem about IRFP460A
    workes in plasma akai PDP-46TS1 in x board
    4 tr mosfet was defect also it is normal in this case driver ic.s
    became defect
    and smd resistance
    i rebuild circuit put the tv in ac voltage and feed the x board with 170v through
    lamp 200 wat i get very bad result all electronic components
    all burned
    i was so depressed
    buta friend of mine told me he have
    scrap tv lg plasma have this IRFP460A
    i rebuild the circut again
    tv works good
    then problem was in bad kind of IRFP460A
    so that
    i need any tools chek (drain) current is 20 amper as in datasheet
    and vdss Drain to Source Voltag 500v as as in datasheet
    if i lost one transistor during test the mosfet it is better than i lost all
    componnents (and time and mony)
    if any body have circut to do that
    or any hint please write to me
    regards



    English to Polish translation

    Witam proszę o pomoc
    Muszę test obwodu Real Power Dane MOSFET
    i wobec problemu o IRFP460A
    workes w osoczu akai PDP-46TS1 w x pokładzie
    4 tr mosfet była wada również to jest normalne w tym przypadku kierowca ic.s
    się wady
    i odporność na smd
    i przebudowa układu umieścić telewizor w napięcie zmienne i paszy zarządu z 170V przez x
    lampa 200 wat i się bardzo złym wynikiem, wszystkie elementy elektroniczne
    wszystkie spalone
    Byłem tak przygnębiony
    Mój przyjaciel buta powiedział mi, że mają
    tv złom lg plazmowe to IRFP460A
    i ponownie odbudować Circut
    tv działa dobrze
    następnie problem był w złej rodzaju IRFP460A
    tak, aby
    i potrzeba żadnych narzędzi chek (drenaż) prądu 20 amper jak w arkuszu danych
    i kanalizacji vdss do 500V Voltag Source as w arkuszu danych
    Jeśli utracone jeden tranzystor podczas badania mosfet jest lepiej niż straciłem wszystkie
    componnents (i czas i mony)
    jeśli każdy organ ma Circut do tego
    lub podpowiedzi piszcie do mnie
    chodzi
  • Spec od monitorów
    Lookˇand read http://www.hardwaresecrets.com/article/Therma...e-Toughpower-750-W-W0116RU-Power-Supply/369/5

    Cytat:
    On the switching section two IRFP460A power MOSFET transistors ( http://www.irf.com/product-info/datasheets/data/irfp460a.pdf ) in two-transistor forward switcher configuration are used, and each one has a maximum rated current of 80 A in pulse mode, which is the mode used, as the PWM circuit feeds these transistors with a square waveform. In continuous mode they can deliver up to 20 A @ 25º C or up to 13 A @ 100º C.


    Check what transistor is in plasma module Ysus
    Philips 42PF9945\12 FTP1.1 E Ysus LJ41-02141A (LJ92-00999A)
    IRGI 4055 IRGI 4065

    Akai plasma was always Philips or Philips-LG sometimes Orion
  • Poziom 16  
    hello lisek
    thank u very much about ur attention
    may i can.t explain the problem here
    in my country
    most electronic parts is china made
    and 99% of moSfet is bad
    works for 3 second only and after that
    damage every thing connected with it
    so we depend on old mosfet from broken set
    or get it from trusted place from outside
    egypt (high cost) AND this also especially in power mosfet not trusted
    any way i search about some way to test
    the real Specifications which in datasheet
    i will build circuit or use any one with driver for mosfet tr not ic
    thanks again
    kind/regards
  • Poziom 16  
    hello again
    I FOUND VERY SIMPLE CIRCUIT I WAS TAKEN
    FROM RUSSIA FORUM FROM TIME AGO
    CAN WORK WITH ALMOST ANY chopper MANY FEATURES
    MY IMPORTANT THING IT IS FREQUENCY AMPERE CURRENT AND VOLTAGE
    ONLY BAD THING THE OSC IC TDA4605 WILL DEFECT WHEN MOSFET DEFECT I.LL DO IT
    AND LET U KNOW



    need test circuit for the real Power MOSFET Specifications

    need test circuit for the real Power MOSFET Specifications