High power class D amplifier

564

07:42:51

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.

published 7 years ago

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.