Hi,
I am interested in all discrete class D because I can make them with cheap parts, and availability.
During I redesign the UcD DIY I found that the my new design is good also for prefilter feedback. Actually I use two feedback prefilter for positive feedback oscillation and post filter to control gain.
But this time I just works on simulation. But the result from simulation seems good.
I am interested in all discrete class D because I can make them with cheap parts, and availability.
During I redesign the UcD DIY I found that the my new design is good also for prefilter feedback. Actually I use two feedback prefilter for positive feedback oscillation and post filter to control gain.
But this time I just works on simulation. But the result from simulation seems good.
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changing feedbak loop
Hi,
I just remove the feedback from post filter output. The gain control is done by control the voltage feedback signal from prefilter itself. Simply, if the feedback is higher than the gain is lower vice versa. So no matter for the gain control.
Simpler feedback loop than post filter indeed.
Hi,
I just remove the feedback from post filter output. The gain control is done by control the voltage feedback signal from prefilter itself. Simply, if the feedback is higher than the gain is lower vice versa. So no matter for the gain control.
Simpler feedback loop than post filter indeed.
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