| 发明名称 |
AUDIO OUTPUT CIRCUIT |
| 摘要 |
An audio output circuit drives an electroacoustic conversion element. A Class D amplifier has a segmented configuration including multiple segments arranged in parallel. A pulse modulator pulse modulates an audio signal. A level detector detects the amplitude of the audio signal. A driver selectively drives the multiple segments of the Class D amplifier according to the output of the level detector. |
| 申请公布号 |
US2015281831(A1) |
申请公布日期 |
2015.10.01 |
| 申请号 |
US201514671096 |
申请日期 |
2015.03.27 |
| 申请人 |
ROHM CO., LTD. |
发明人 |
IBUSUKI Takayuki;SAITO Naotaka;ARAKI Hideo |
| 分类号 |
H04R1/10;H03F3/183;H03F3/217 |
主分类号 |
H04R1/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An audio output circuit that drives an electroacoustic conversion element, comprising:
a Class D amplifier configured including a plurality of segments connected in parallel; a pulse modulator that pulse modulates an audio signal; a level detector that detects an amplitude of the audio signal; and a driver that selectively drives the plurality of segments of the Class D amplifier according to an output of the level detector. |
| 地址 |
Ukyo-Ku JP |
