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Recent content by pmadithya

  1. pmadithya

    [Moved] Solar Li-ion battery charger

    Hello, Could anyone provide me a schematic or charging ic to charge a Li ion battery 11.1V,5.2Ah using 10W solar panel. Panel Specs - Maximum Power Voltage- 17.5 ,Maximum Power Current (A) - 0.57.
  2. pmadithya

    Solar Li-ion battery charger

    Hello, Could anyone provide me a schematic or charging ic to charge a Li ion battery 11.1V,5.2Ah using 10W solar panel. Panel Specs - Maximum Power Voltage- 17.5 ,Maximum Power Current (A) - 0.57.
  3. pmadithya

    48W led driver with input range 85V to 280AC and output range 65-85V DC

    Hello, I just wanted to know if there is any part from any manufacturer and relevant design for the above mentioned 48W driver board.
  4. pmadithya

    48W led driver with input range 85V to 280AC and output range 65-85V DC

    Hello, I just wanted to know if there is any part from any manufacturer and relevant design for the above mentioned 48W driver board.
  5. pmadithya

    48W led driver with input range 85V to 280AC and output range 65-85V DC

    The intended device is an LED strip of 4strings, each string having 8 LEDs in series.This application is for streetlighting application.
  6. pmadithya

    48W led driver with input range 85V to 280AC and output range 65-85V DC

    Hello, I want to design a 48W led driver with wide input range 85V to 280AC and output range 65-85V DC. Is there any designs available. I need wide input range because I live in rural area and there's voltage drop in this wide range.
  7. pmadithya

    Regarding using IRS2186 mosfet driver for Synchronous boost application

    Hello I'm using IRS2186 mosfet driver soic-8 package to drive a high side and low side mosfet. Now the problem is I have made two separate designs for High side and low side drivers but both are not working separately. I have enclosed the schematic below. I will be using one of these mosfets to...
  8. pmadithya

    Synchronous boost converter floating transistor question

    Hey, With regard to the above discussion, I have used a mosfet driver IRS2186 to drive high side and low side mosfet for my synchronous boost converter. I'm using IRS2186 mosfet driver soic-8 package to drive a high side and low side mosfet. Now the problem is I have made two separate designs...
  9. pmadithya

    Regarding designing a Mosfet driver using a transistor

    Hello, Could anyone tell me whether I could use a transistor to drive an N-channel mosfet such as IRFZ44. Once I do this I would like to drive it using a suitable mosfet driver.
  10. pmadithya

    Need help in driving a 1 Watt Led using LDR

    Hi, I've tried the same with 5 W resistors and it doesn't do sensing. Please suggest me a better circuit.
  11. pmadithya

    Need help in driving a 1 Watt Led using LDR

    Hi, Let me just try with R1 = 3.3. Thanks for the excellent explanation Brian. Thanks Eshal.
  12. pmadithya

    Need help in driving a 1 Watt Led using LDR

    Hi, So what should be my ideal values of R1 and R2. I used R1= 10ohms and R2= 100k Ohms. Still my current reads only 12 mA.
  13. pmadithya

    Need help in driving a 1 Watt Led using LDR

    Hi, I found a circuit on this blog to make a sensor to light up LED's using LDR( dark light sensor). https://www.buildcircuit.com/darklight-sensor-using-transistor/ I replaced the BC 547 transistor with BD 679 and also with 2222A npn transistors. The problem is that i want to light up a 1...
  14. pmadithya

    Charge controller to charge my 6 Volts 4.5 Ah battery

    Hi, Yes i'm planning to make my own switch mode controller. So I need any DIP IC which I could use.
  15. pmadithya

    Charge controller to charge my 6 Volts 4.5 Ah battery

    Hi, I have a Solar Panel having rating 5 Watt, V(open circuit) 21.6 Volt I(Short circuit) 0.32 Amps V(mp) 17.3 Volt I(mp) 0.29 Amps Please suggest a suitable Charge controller to charge my 6 Volts 4.5 Ah battery.
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