• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 48 subscribers
  • Views 1083 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Class D Amp closed loop feedback

Zhekun Liu
Prodigy 80 points

I have build a Class D Amplifier and plan to add a feedback from the output of power stage to my input in order to increase the accuracy of my final result. Could anyone please tell me how I can start to do it and how to calculate the parameters for each device. 

The sin wave input with 1 dcv offset and amplitude of 1v with frequency 20K and the sawtooth waveform has the amplitude of 1v with frequency 200k. Thanks in advance. 

  • 0
    TI__Mastermind 23215 points

    Hello Zhekun,

    We are experts in the gate driver devices so the class D amplifier feedback design is outside of our expertise.

    On ti.com however there are referenced designs for various applications including class D amplifiers that should be useful.

    I found one example in the following link, there are other designs as well.

    https://www.ti.com/tool/PMP11769

    Confirm if this addresses your questions, or you can post additional questions on this thread.

    Regards,