| 发明名称 |
DRIVING CIRCUIT FOR A SOUND OUTPUTTING APPARATUS |
| 摘要 |
A driving circuit for a sound outputting apparatus includes a H-bridge and a charge pump established by six switches for driving two types of loudspeakers, respectively. The six switches include two common switches to be configured in the H-bridge and the charge pump, thereby reducing the costs and circuit area of the driving circuit.
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| 申请公布号 |
US2012140958(A1) |
申请公布日期 |
2012.06.07 |
| 申请号 |
US201113309397 |
申请日期 |
2011.12.01 |
| 申请人 |
LIN CHANG-CHIH;WANG HUNG-DAR;HUANG PEI-CHENG;RICHTEK TECHNOLOGY CORP. |
发明人 |
LIN CHANG-CHIH;WANG HUNG-DAR;HUANG PEI-CHENG |
| 分类号 |
H02B1/00 |
主分类号 |
H02B1/00 |
| 代理机构 |
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代理人 |
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| 主权项 |
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