发明名称 |
Systems and Methods of Bit Stuffing Pulse Width Modulation |
摘要 |
Systems and methods for bit stuffing pulse width modulation are provided. Example embodiments of the systems and methods of bit stuffing pulse width modulation disclosed herein may allow for a significant reduction in the size of the bootstrap capacitor while giving up only a small percentage of output drive, and reduce die space. Included in such systems and methods is the ability to digitally detect inactivity on the PMW signals for a class D power amplifier, and to digitally insert small charge pulses at a fairly low repetition rate relative to the normal switching frequency. The low repetition rate may preserve the maximum output power while still allowing enough charge to transfer to the bootstrap capacitor.
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申请公布号 |
US2010289560(A1) |
申请公布日期 |
2010.11.18 |
申请号 |
US20090467265 |
申请日期 |
2009.05.16 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
MAVENCAMP DANIEL;YIHONG DAI;ALSHARQAWI ABDELHALIM;MARTINDELL STEVE |
分类号 |
G05F1/10 |
主分类号 |
G05F1/10 |
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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