发明名称 |
Class-D amplifier with digital feedback |
摘要 |
<p>The circuit has a sigma delta modulator (22) to convert pulse code modulated (PCM) into power control pulses. An H-Bridge (23) drive voltage into an output load e.g. loud-speaker (24). An algorithm in digital signal processor calculates pulse area error, which is the difference between real and ideal pulse area. An independent claim is also included for a method for compensating the pulse area error in a class-D power amplifier.</p> |
申请公布号 |
EP1406381(A1) |
申请公布日期 |
2004.04.07 |
申请号 |
EP20020368108 |
申请日期 |
2002.10.02 |
申请人 |
DIALOG SEMICONDUCTOR GMBH |
发明人 |
LENNARTSON, LARS;NILSON, JOHAN;KNOEDGEN, HORST |
分类号 |
H04L1/00;H03F3/217;H03M3/00;H03M3/02;(IPC1-7):H03F3/217 |
主分类号 |
H04L1/00 |
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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