As part of a college project I have to design a working Class-D audio amplifier.
One of the first challenges is to generate a triangular wave at a frequency arround 100kHz.
In order to do this I have in mind generating first a square wave (using a 555 timer in an astable configuration) and then integrate it. Then I encounter some problems:
- The device has to be single powered (5V taken from a USB plug)
- Becouse of that limitation I cannot use a simple Inverter Integration using an operational amplifier.
Any ideas on how to solve my problem?
Thanks in advance, and sorry for my bad english :/