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Pumpernickel · 6th May 2006, 4:20 pm

Hello,

to improve the power supply, you could

1) use a transformer with two identical windings for primary and take opposite polarity as common, the other two each to one transistor switch, where both transistors are driven by complementary rectangle. That would result in better symmetry and thus avoid core saturation.

2) Use Power-MOSFET instead of a Darlington (even a normal transistor would be better, as it doesn't have that high saturation voltage).

Regards

Dieter

6th May 2006, 4:20 pm	#9
Pumpernickel Retired Dormant Member Join Date: Nov 2005 Location: Germany (in the south) Posts: 6	Re: Miniamp prototype 1 Hello, to improve the power supply, you could 1) use a transformer with two identical windings for primary and take opposite polarity as common, the other two each to one transistor switch, where both transistors are driven by complementary rectangle. That would result in better symmetry and thus avoid core saturation. 2) Use Power-MOSFET instead of a Darlington (even a normal transistor would be better, as it doesn't have that high saturation voltage). Regards Dieter Last edited by Station X; 15th May 2006 at 4:42 pm. Reason: Error pointed out by poster corrected.