公开(公告)号：US20110222702A1

公开(公告)日：2011-09-15

申请号：US13041781

申请日：2011-03-07

申请人： Yeongha CHOI ,  Jin Ho OH ,  Min Soo KIM ,  Jae-Hee WON

发明人： Yeongha CHOI ,  Jin Ho OH ,  Min Soo KIM ,  Jae-Hee WON

IPC分类号： H04R1/10 ,  G05F1/10

CPC分类号： H03F1/30 ,  H03F2200/03 ,  H03F2200/78

摘要： A power supply circuit including a voltage regulator and a headphone driving circuit employing the same are disclosed. In accordance with the present invention, the power supply circuit may provide stable power supply to the amplifier since the power supply circuit generates the constant voltage +Vreg and the constant voltage −Vreg from +VDD robust to stronger than a power noise, and the balanced signal path for isolating the noise of the input signal to be amplified is not required, thereby simplifying the constitution of the circuit

摘要翻译： 公开了一种包括电压调节器和采用其的耳机驱动电路的电源电路。 根据本发明，电源电路可以向放大器提供稳定的电源，因为电源电路产生恒定电压+ Vreg，并且恒定电压-Vreg从+ VDD鲁棒到强于功率噪声，并且平衡 不需要用于隔离要放大的输入信号的噪声的信号路径，从而简化了电路的结构

公开(公告)号：US08452025B2

公开(公告)日：2013-05-28

申请号：US13041781

申请日：2011-03-07

申请人： Yeongha Choi ,  Jin Ho Oh ,  Min Soo Kim ,  Jae-Hee Won

发明人： Yeongha Choi ,  Jin Ho Oh ,  Min Soo Kim ,  Jae-Hee Won

IPC分类号： H04R1/10 ,  H04B3/00 ,  H04M1/00

CPC分类号： H03F1/30 ,  H03F2200/03 ,  H03F2200/78

摘要： A power supply circuit including a voltage regulator and a headphone driving circuit employing the same are disclosed. In accordance with the present invention, the power supply circuit may provide stable power supply to the amplifier since the power supply circuit generates the constant voltage +Vreg and the constant voltage −Vreg from +VDD robust to stronger than a power noise, and the balanced signal path for isolating the noise of the input signal to be amplified is not required, thereby simplifying the constitution of the circuit.

摘要翻译： 公开了一种包括电压调节器和采用其的耳机驱动电路的电源电路。 根据本发明，电源电路可以向放大器提供稳定的电源，因为电源电路产生恒定电压+ Vreg，并且恒定电压-Vreg从+ VDD鲁棒到强于功率噪声，并且平衡 不需要用于隔离要放大的输入信号的噪声的信号路径，从而简化了电路的结构。