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Recent content by jibin@elmeasure.com

  1. J

    Viper 22A SMPS AC input range

    Ok..will try with another MOSFET
  2. J

    Viper 22A SMPS AC input range

    Hi, If VDS minimum start up is 100V means minimum AC voltage at least 70V is it ?
  3. J

    Viper 22A SMPS AC input range

    Hi Sir, I am using auxilary winding for VDD supply. winding ration is 4 and D3 & C5 are US1J and 1µF/63V respectively. In data sheet VDS start up voltage has mentioned as -0.3-400 so it should work at 40V AC range.Viper 22A SMPS which i designed it is working at 40VAC but when i connect load...
  4. J

    Duty cycle of viper22A

    Dear All, Max Duty cycle of viper is how much? Is it 0.41? please let me know the answer thanks, Jibin Micheal
  5. J

    Viper 22A SMPS AC input range

    Dear All, Any one can help me regarding the D max of viper22A . Is it 0.41 ? Regards, Jibin Micheal
  6. J

    SMPS input voltage range increase

    Hi Sir.. I am planning to do 5V ,2A o/p SMPS using viper 22A. i want to know whether the input range will support 40-300VAC. If it will not why? can you give the relation of working with this input range and the chip.I am eagerly waiting your reply
  7. J

    Viper 22A SMPS AC input range

    Here this Viper 22A is working with 40 V AC buy that time i cant use 300V AC that time maximum of voltage range is 40-240,after this range the device will go to over voltage protection. So i want to maintain the VDD voltage under the over voltage condition of viper22(38V) how it will achieve in...
  8. J

    Viper 22A SMPS AC input range

    I am a beginner so would you please explain why it will not work in that range. Is it possible in the range of 40-300V AC.Please do the needful for my doubts 1.Would you please give the SMPS design tips & calculations 2.Can you give the reference design. Thanking you
  9. J

    Viper 22A SMPS AC input range

    Actually required output is 5v 1A & 3.6V, aux input 20-300VAC...Viper VDD voltage is varying as per the input supply changes .Why it is behaving like that...VDD should not vary according with input supply it vary accordingly with load....can you help me for solving the above mentioned problem..
  10. J

    Viper 22A SMPS AC input range

    Viper 22A SMPS AC input range 20-300 AC input 50HZ SMPS design Anybody can help regarding Viper 22A SMPS...Is Viper 22A based supply will support 20-300V AC input supply????
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