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Registered Member #3964
Joined: Thu Jun 23 2011, 03:23AM
Location: Valenzuela City
Posts: 332
Hi Everyone,
I've been trying to build a bus modulator for my first attempt to make QCW DRSSTC. Unfortunately, i was not able to make it work, and the output waveform of my Class D amplifier is somewhat far from expected which is a linear ramp.. (compared to my signal input).
Just wondering, if anyone could help me with this project, for this are my encounters: 1. I don't know if my ramp signal generator is suitable for this application 2. High Current Draw from AC Mains(variac) 3. Trash output waveforms ( it seems like its just a oscillation wave, even if i inputted a shaped ramp signal)
I've attached (linked) herewith the schematics being used, please help me check if there are mistakes on the circuits. such as isolation issues, feedback and etc, Any input regarding the subject is highly appreciated, thank you very much!
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QCW Modulator
