发明名称 |
Rotating pulse-width modulator |
摘要 |
A driver for driving an LED uses PWM in a sequence of the periods. The driver has a modulo counter, that is reset after each period. The driver has a first adder for combining the count value with a quantity indicative of a shift of the LED's control pulse relative to the start of the period; a second adder for combining the count value with a width quantity indicative of a width of the control pulse; and a logic gate receiving the MSBs at the outputs of the adders and supplying the control pulse.
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申请公布号 |
US8594174(B2) |
申请公布日期 |
2013.11.26 |
申请号 |
US20090936999 |
申请日期 |
2009.04.14 |
申请人 |
DEURENBERG PETER HUBERTUS FRANCISCUS;JACOBS JOANNES WILHEMUS GERTRUDIS MARIE;NXP B.V. |
发明人 |
DEURENBERG PETER HUBERTUS FRANCISCUS;JACOBS JOANNES WILHEMUS GERTRUDIS MARIE |
分类号 |
H03K7/08;H03K9/08 |
主分类号 |
H03K7/08 |
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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