发明名称 |
Zero-crossing gain control system and associated methods |
摘要 |
A zero-crossing gain control system is disclosed herein. The system comprises a gain control unit for amplifying an input signal to an output signal, a zero-crossing monitoring circuit for monitoring the input signal or output signal, and a register for latching the digital control signal and generating a gain control signal that controls the gain control unit. The system may further comprise a maximum write time setting circuit for generating a write signal. The digital control signal is written into the register when a zero-crossing state is monitored or a maximum write time since a change occurred on of the digital control signal is expired. An automatic gain control system is also disclosed herein and further comprises a peak detecting circuit for detecting the level of output signal, a logic circuit for lowering or restoring the digital control signal according to the result from the peak detecting circuit.
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申请公布号 |
US8487661(B2) |
申请公布日期 |
2013.07.16 |
申请号 |
US201113211116 |
申请日期 |
2011.08.16 |
申请人 |
WANG HAISHI;WANG RUI;LI LEI;MONOLITHIC POWER SYSTEMS, INC. |
发明人 |
WANG HAISHI;WANG RUI;LI LEI |
分类号 |
H03K5/22;H03K5/153 |
主分类号 |
H03K5/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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