I am trying to make some amplifier circuit like Class - D type. Below is the circuit; enter image description here

Input is sinusoidal @2500Hz. I couldn't make gate driver circuit. Thats why i use voltage dependent voltage source which is working fine.

@The H - Bridge, there is some point that i couldn't solve. It has to be sinusoidal output current on the inductor but somehow, it is like below;

enter image description here Switching frequency: 500kHz. H-Bridge, All Mosfets are N-Type

Thank you all

  • 1
    \$\begingroup\$ What does the output voltage look like - use a VCVS connected across the inductor with the output ground referenced. \$\endgroup\$ – Andy aka Feb 27 '17 at 8:35
  • \$\begingroup\$ You will need to look at some real class D amplifier designs and see what is done and understand why that is done. You have a purely inductive load, why ? Start with a resistive load and see what happens. Also making it difficult on yourself by only using NMOS, again why ? \$\endgroup\$ – Bimpelrekkie Feb 27 '17 at 9:33
  • \$\begingroup\$ Normal class D amps don't 'add Dead Time ' \$\endgroup\$ – JIm Dearden Feb 27 '17 at 10:48

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