发明名称 PULSE SIGNAL GENERATING METHOD AND PULSE SIGNAL GENERATING DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To prevent a low-frequency noise for facilitation of noise removal in a pulse signal generating device using a PWM. Ž<P>SOLUTION: The pulse signal generating device (10) includes a pulse width setting part (11), a waveform control part (12), and an output part (13). The pulse width setting part (11) sets pulse width data (DD). The waveform control part (12) has bits equivalent to a cycle, and generates waveform data (DW) in which the bits equivalent to a value of the pulse width data (DD) are set to a first logic value and the remaining bits are set to a second logic value so that the bits of the same logic value are scattered. The output part (13) selects each bit of the waveform data (DW) sequentially, thereby outputting a pulse signal (OUT). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
申请公布号 JP2010154222(A) 申请公布日期 2010.07.08
申请号 JP20080330192 申请日期 2008.12.25
申请人 FUJITSU SEMICONDUCTOR LTD 发明人 MATSUI SATOSHI
分类号 H03K7/08;H03K3/72 主分类号 H03K7/08
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