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#1 |
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diyAudio Moderator Emeritus
Join Date: Oct 2002
Location: Bandung
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I try to simulate a simple half bridge LC filter, L=22uH, C=1uF, load=4ohm.
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#2 |
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diyAudio Moderator Emeritus
Join Date: Oct 2002
Location: Bandung
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The response is like this
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#3 |
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diyAudio Moderator Emeritus
Join Date: Oct 2002
Location: Bandung
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Now I add 2 diodes and 1 extra inductor, to make a BCA output stage.
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#4 |
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diyAudio Moderator Emeritus
Join Date: Oct 2002
Location: Bandung
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Why is the response become like this? The peak is about +18.5dB.
What is wrong with my SIM? Changin the values of L or C don't help. |
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#5 |
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diyAudio Member
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The Gate drive to both devices in BCA is always in phase and hence the devices conduct simuntaneously!! whereas your diagram shows simple complementary halfbridge, in which device conduction is based on appropriate polarity of signal with respect to channel polarity of device
Also the inductors used in BCA are atleast 220uH not 22uH.
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