DC-DC converter

Discussion in 'The Projects Forum' started by 3abody, Mar 24, 2009.

  1. 3abody

    Thread Starter New Member

    Mar 24, 2009
    Hey guys ,, my first post :D

    I am a bit new in working with hardware always used to simulation so i do need lots of help on this

    I am building buck/boost converter

    Components :
    PIC16F877A as a micro controller to generate PWM signal with connection similar to this demonstration (but not identical)


    IRF 3205 n-channel MOSFET as a switch

    IR2110 as mosfet driver

    Some Resistors, capacitors and inductors

    First i will start with the basic circuit and if it worked i will try to implement other DC/DC converter


    I have already tested the PWM and it is working fine , now i could connect the pwm directly to the IRF3205 but i was told that i will not work and that i need MOSFET driver so i got one but i don't know how to connect it then i got that schematic from the data sheet

    but it shows it working with only one MOSFET so i was wondering if someone can point me towards the correct direction, thanks in advance​
  2. lmartinez

    Active Member

    Mar 8, 2009
    You may find the following Mosfet drivers useful for your DC to DC converter:

    The TPS2816 (or TPS28XX series) to single-channel high-speed MOSFET
    drivers are capable of delivering peak
    currents of up to 2 A into highly capacitive loads.
    High switching speeds (tr and tf = 14 ns typ) are
    obtained with the use of BiCMOS outputs

    Do a search on the internet and you may find the appropriate driver for your project.
  3. 3abody

    Thread Starter New Member

    Mar 24, 2009
    I looked now at the tps2816 data sheet and it looks perfect and easy to implement but unfortunately I am limited to the local components available :( , i will take a look again and see if i can find it
    thanks for ur help m8 :)
  4. pruneloo

    New Member

    Oct 28, 2010
    Hy 3abody,

    I am interesed to , about the buck converter, maybe you can help me with the software for this project.

    Thank you