Browse over 10,000 Electronics Projects using the Page Numbering provided at the bottom of each Page.

Class D Audio Amplifier Using PIC24FV16KM202

Class D Audio Amplifier Using PIC24FV16KM202

Class D amplifiers have become a popular audio amplifier topology due to their high efficiency and subsequent low cost. The high current output stage is implemented using binary switches, resulting in minimal heat generation and power loss. This allows for the power supply, heat sink and overall physical size of the amplifier to be minimized. Typical efficiency of a class D amplifier is over 90%, as opposed to 50% for a typical class AB amplifier. In an AB design, most of the inefficiency is a result of the output stage devices being required to operate in the linear region. As current flows though the devices, it is converted to heat instead of being delivered to the load.

This application note provides a method to implement a class D amplifier using only the analog features of the PIC24FV16KM202 and minimal external components. This leaves the processor completely available for other application processes. The design presented is a single channel, full bridge (push-pull) Class D amplifier.

 

More Articles to Read

Single-Sided USB Charger
Single-Sided USB Charger
A FPGA controlled RGB LED MATRIX for Incredible Effects – the Hardware
A FPGA controlled RGB LED MATRIX for Incredible Effects – the Hardware
Using Nanotimers to Reduce IoT System Power Consumption by an Order of Magnitude
Using Nanotimers to Reduce IoT System Power Consumption by an Order of Magnitude
Replace a microwave’s beeping with the Windows XP startup sound
Replace a microwave’s beeping with the Windows XP startup sound
A DIY Laser Scanning Microscope
A DIY Laser Scanning Microscope
Reverse-engineering the surprisingly advanced ALU of the 8008 microprocessor
Reverse-engineering the surprisingly advanced ALU of the 8008 microprocessor
ESP8266 LED lighting: QuinLED v2.6 PCB
ESP8266 LED lighting: QuinLED v2.6 PCB
Switching LVDS Graphics in a Laptop Computer
Switching LVDS Graphics in a Laptop Computer
Teleknitting: TV-based string art
Teleknitting: TV-based string art
DIY Bubble Machine
DIY Bubble Machine
Start your day with Nerf target practice!
Start your day with Nerf target practice!
Teardown of a Peaktech 6225A
Teardown of a Peaktech 6225A

Top




Shares