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Recent content by sivaprasadgnair

  1. S

    battery charger circuit for NiMh battery

    Dear friends i have a 12v, 2ah NiMh battery. i have to make a proper charger circuit for that one. i have tried some circuits, but only find my battery heating up not charging. Can anyone help me to solve this out.
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    DC insulation resistance tester

    thanks dear.can you please explain me how it measure insulation resistance, i mean the principle of insulation measurement.
  3. S

    DC insulation resistance tester

    I want to make an insulation resistance tester for 320V DC.Can any one guide me to make an idle circuit for this. What is the basic principle behind insulation resistance testing.
  4. S

    battery charger circuit

    Hai, this is siva, and i have an NIMH battery of 12v,2Ah capacity.Can any one give me a perfect charger circuit for this one? what will be the maximum carging voltage, current for this battery?
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    Power LED having natural light

    hay guys, I want to make an emergency light using power LEDs. but my customer requires a natural light (that of halogen bulb).is there any Power LEDs that give natural light?
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    [SOLVED] design tips for LED driver using power LEDS

    hai tahmid i have made the driver using an30888a and is working good https://obrazki.elektroda.pl/5606621200_1352654441.jpg
  7. S

    [SOLVED] design tips for LED driver using power LEDS

    hai Tahmid thanks for your replay. I will get back to you after my developments.
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    circuit of led driver

    thanks for the replay i would like to make one of my own. please guide me to pick an ideal driver
  9. S

    circuit of led driver

    can anyone help me to find an led driver circuit to drive 12v, 800mA led
  10. S

    [SOLVED] design tips for LED driver using power LEDS

    Hi guys, I do have a query on design of LED driver For power LEDs. I am using a an30888a of panasonic as my LED driver for 3 LEDs of 3.25w each in series and power consumption of around 800mA.I am using it in Buck mode. But in data sheet of an30888a i am alittle bit confused with pins ENB,PWM...

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