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Old 18th March 2011, 10:11 PM   #21
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Join Date: Apr 2008
Location: Carlisle, England
Originally Posted by zox2003 View Post

Amplifier is fixed...I used Eva's advice and inserted 100uF capacitor in series with 1K that goes from pin 2 to GND (LM311) + I added variable resistor (5K) to offset adj. pins on LM311 (with this I was able to do precise adjustment).So far so good...I am attaching updated schematic here:

I used an XOR gate as a phase splitter to keep the gate delays the same.
Murton-Pike Systems PCBCAD51 pcb design software. http://www.murtonpikesystems.co.uk
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Old 18th March 2011, 10:36 PM   #22
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Join Date: Dec 2003
Location: Munich
Originally Posted by ChocoHolic View Post
More specific:
Low L can be helpful to reduce the dead time distortion. Ok.

A filter with 22uH and 1uF does show just 0.5 db overshoot at the resonance frequency when loaded with 4 Ohms.
If you go for 10uH and 2u2, then you will get 6db overshoot at 4 Ohms load.
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