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TI Home » TI E2E Community » Support Forums » Other Analog & Touch » /etc... Analog » /etc... Analog Forum » PWM signal generator IC
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PWM signal generator IC

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VASANTHAN B
Posted by VASANTHAN B
on Feb 16 2012 00:12 AM
Prodigy20 points

Dear sir,

               I am in need of PWM signal generator IC , to poduce PWM pusle that will be used by DC-DC converter switches .. frequency range is 8 KHz.. I need an IC that has multiple output channels and produces PWM pulses whose duty  cycles could be varied from 0 to 100% . can you suggest an IC? I intend to control the IC from a micro-controller.

Thanks and Regards

Vasanth

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  • Thomas Gulba
    Posted by Thomas Gulba
    on Feb 16 2012 09:43 AM
    Intellectual2750 points

    Hi Vasanth,

    Maybe you can use your micro-controller to generate the PWM signals.

    Here is a link how to do this with the MSP430: http://e2e.ti.com/support/microcontrollers/msp43016-bit_ultra-low_power_mcus/f/166/t/73837.aspx

    Hope this helps.

    Thomas

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  • VASANTHAN B
    Posted by VASANTHAN B
    on Feb 16 2012 11:27 AM
    Prodigy20 points

    Dear sir,

                I have generated a PWM signal using Micro-controller (PIC16f887) but unfortunately , there is only one PWM output channel , but i need three or four independant PWM signal with duty cycle ranging from 0 to 100 % . and so i am looking for a PWM generator IC ... can you suggest one ?

    thanks and regards

    vasanth

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  • Thomas Gulba
    Posted by Thomas Gulba
    on Feb 16 2012 17:03 PM
    Intellectual2750 points

    Hi Vasanth,

    I still think that it would be the easiest approach to replace the PIC16F887 with a microcontroller with multiple PWM output channels. You can find a lot of examples on our "Digital Power" starting page: http://www.ti.com/ww/en/analog/digital-power/index.html

    Other than that I am not aware of a specific "PWM generator IC" in our portfolio.

    Maybe someone else in the forum knows something?

     

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