An amplifier device including an amplifier having an input for receiving an audio input signal and an output for sending an output signal to a load. A boosted-rail circuit is connected to a power source and has a single boosted rail connected to the BTL amplifier. Also, a common-mode circuit is coupled to the boosted-rail circuit and the BTL amplifier. The common-mode circuit sends a common-mode signal to the BTL amplifier that will dynamically track the output voltage supplied from the boosted-rail circuit to the BTL amplifier. In operation, the boosted-rail circuit reacts to the BTL amplifier and switches from a non-boost mode to a boost mode to increase the output voltage supplied to the BTL when the BTL amplifier requires additional voltage.
申请公布号
WO2011031379(A2)
申请公布日期
2011.03.17
申请号
WO2010US42961
申请日期
2010.07.22
申请人
ROCKFORD CORPORATION;STRICKLAND, JAMES, C.;ALBERS, MARK, D.;BAKER, DAVID, DEAN
发明人
STRICKLAND, JAMES, C.;ALBERS, MARK, D.;BAKER, DAVID, DEAN