发明名称 |
Digital-to-analog converter and digital-to-analog converting method |
摘要 |
<p>In a digital-to-analog converter comprising a pulse-width modulation signal generator for generating a pulse-width modulation signal by pulse-width modulating an actual set value with a count value, and a low-pass filter for removing a high frequency component of the pulse-width modulation signal so as to output an analog signal, a difference between a current target digital value and a previous target digital value are multiplied by a coefficient determined from a time constant of the low-pass filter and a cycle of the target set value, and the multiplied value is added to the previous target set value so as to calculate the actual set value. <IMAGE></p> |
申请公布号 |
EP0932257(A2) |
申请公布日期 |
1999.07.28 |
申请号 |
EP19990101239 |
申请日期 |
1999.01.22 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
MORIYA, MASAHIRO |
分类号 |
H03M1/82;(IPC1-7):H03M1/82 |
主分类号 |
H03M1/82 |
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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