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8th May 2006, 01:59 PM
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#1 |
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diyAudio Member
Join Date: Feb 2006
Location: Geelong
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Class D replacement for LM1875 for TT motor supply.
I am interested in replacing the LM1875s I currently use with class D chip amps.
The LM1875s are used in the power supplies for turntable motors, typical apps include a 3 phase supply for an EC motor (in a Garrard 301) and a quadrature supply for a synch motor. It seems to me that with something like an AD 1992 or 1994 operating in bridged mono I could get at least as much power (currently 15W max per phase) but with a single supply and without big heatsinks. Any suggestions for other chips welcomed. I would also like to know if anyone has any experience running these chips into highly inductive loads |
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