Pulse width modulator

[alijoorabchi]

Could someone tell me how to build the pulse width modulator of D amp ,with discrete parts only?.

i have couple of questions.
should i use self oscilating or one that compares the audio signal with a triangular wave???

how can i create the triangular waveshape with high frequency in my circuit to compare with the audio signal using discret parts.

could someone please provide me with a schematic??

[kartino]

hi buddy,

seem that you just passing your opportunity to get your answer shortly. have you search "discrete class d" as a question when you started this thread?

too many people loosing their canche... too bad!

[sovadk]

You can make a PWM modulator by comparing a signal with a triangle waveform.
Look here to see how you can build a discrete triangle generator
Discrete triangle generator
or here for a orcad pspice project of it
triangle wave