It takes a moment to stabilize.
Simple high power class D amplifier with good sound quality.
This amplifier uses simple components. For the triangle signal generation and the preamplifier, use a quad rail-to-rail op amp.
The 2,5V is a virtual ground. You can use the fourth op amp left.
It is highly recommended to use a comparator for the comparison part (no shit Sherlock). The reason is the switching speed.
For the npn, make sure it's fast enough. Recommended to use a logic transistor.
Use complementary MOSFET that can handle at least 5A. Make sure they can dissipate the power.
Approximately 90% efficiency.
