Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tony Doy0
Ronald Koo0
Date of Patent
May 11, 2010
0Patent Application Number
121161440
Date Filed
May 6, 2008
0Patent Primary Examiner
Patent abstract
A driver amplifier operative from a single DC voltage supply, coupled directly to the output load without the need for DC coupling capacitors used for preventing DC reaching the output load. An onboard power supply generates a negative voltage rail that powers the output amplifiers, allowing driver amplifier operation from both positive and negative rails. Since the amplifiers can be biased at ground potential (0 volts), no significant DC voltage exists across the load and the need for DC coupling capacitors is eliminated.
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