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27th August 2011, 09:18 AM
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#1 |
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diyAudio Member
Join Date: Oct 2004
Location: Aalborg, Denmark
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Lateral FET, Folded drivers, Biasing?
How do you bias Lateral FET's if you are using folded drivers, as per Cordells example in his book? Ofcourse his example shows Vertical FET's but that shouldnt matter.
The lowest bias I could get is around 1.8 A, that is 900mA per FET. Seems like regular Vbe muptiplier doesnt work, tried just a resistor, resistor+pot, various combinations of diodes and resistors, nothing seems to work. Maybe I'm overlooking something. Schematic attached. |
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27th August 2011, 07:12 PM
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#2 |
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diyAudio Member
Join Date: Oct 2004
Location: Aalborg, Denmark
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No one else using folded drivers together with Lateral FETs?
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