发明名称 |
Concept and method to enable filterless, efficient operation of Class-D amplifiers |
摘要 |
A Class-D switching amplifier (30, 40) having a ternary mode of operation. Signal processing (21, 22) is provided to eliminate the potential of crosstalk within one channel by introducing a time delay into the system. A susceptible crosstalk point is moved away from a zero-crossing point to a higher power level, which is advantageous in low-end audio applications. A time delay is introduced to one ramp signal (RAMPB) in the first implementation (30), and an in-sync generator (42) is utilized in another implementation (40) using offset switching in the comparitors (40, 42) to create the time delay (DELTAt).
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申请公布号 |
US6262632(B1) |
申请公布日期 |
2001.07.17 |
申请号 |
US19990441620 |
申请日期 |
1999.11.16 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
CORSI MARCO;CHEN WAYNE TIEN-FENG;JONES, III ROY CLIFTON;MAVENCAMP DAN;ARCUDIA KENNETH |
分类号 |
H03F3/217;(IPC1-7):H03F3/217 |
主分类号 |
H03F3/217 |
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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