help with pwm output

Discussion in 'The Projects Forum' started by ak11667, May 28, 2012.

  1. ak11667

    Thread Starter New Member

    May 28, 2012
    1
    0
    i have a computer controlled PWM
    problem i have is it pulses the ground signal, and i need it to pulse the positive

    is there any way i can design a simple circuit to switch them while still maintaining the pwm pulses, i was thinking of using a TIP31c transistor, but i cant get it working right
     
  2. absf

    Senior Member

    Dec 29, 2010
    1,492
    371
    Show us your schematic so we can help with the connections. Should be easy as you just need an inverter.

    Allen
     
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