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1. 发明申请

WO2014200461A1 LOW POWER HIGH FREQUENCY DIGITAL PULSE FREQUENCY MODULATOR 审中-公开
标题翻译：低功率高频数字脉冲频率调制器
公开(公告)号：WO2014200461A1
公开(公告)日：2014-12-18
申请号：PCT/US2013/045006
申请日：2013-06-10
申请人： THENUS, Fenardi , ZOU, Peng , INTEL CORPORATION , CHEPURI, Raghu Nandan , KOERTZEN, Henry W.
发明人： THENUS, Fenardi , ZOU, Peng , CHEPURI, Raghu Nandan , KOERTZEN, Henry W.
IPC分类号： G05F1/10
CPC分类号： G09G5/006 , G06F3/0412 , G09G2330/021 , H02M3/158 , H02M3/1584 , H02M2001/0009 , H02M2001/0032 , H02M2003/1586 , H03K5/14 , H03K7/06 , H03K7/08 , H03K17/284 , Y02B70/16
摘要： Described is an apparatus that comprises: a programmable delay line (PDL) to receive a pulse-width modulation (PWM) signal as input and to generate a first output; a selection unit operable to provide PWM signal or its inverted version as a second output; and a sequential unit coupled to the PDL, the sequential unit to sample the second output with the first output, the sequential unit to generate a pulse-frequency modulation (PFM) output. Described is also a voltage regulator which comprises: mutually coupled on-die inductors for coupling to a load; a bridge, coupled to the mutually coupled on-die inductors, including a low-side switch and a high-side switch; a PWM controller for controlling the low-side and high-side switches during a first load current; and a PFM controller for controlling the low-side and high-side switches during a second load current, the second load current being smaller than the first load current, the PFM controller comprising: a comparator for comparing output voltage of the load with a reference voltage; and a first PDL coupled to the comparator for determining turn-on duration of the high-side switch.
摘要翻译：描述了一种装置，包括：可编程延迟线（PDL），用于接收作为输入的脉宽调制（PWM）信号并产生第一输出; 选择单元，其可操作以提供PWM信号或其反相版本作为第二输出; 以及连接到PDL的顺序单元，该顺序单元用第一输出对第二输出进行采样，该顺序单元用于产生脉冲 - 频率调制（PFM）输出。还描述了一种电压调节器，其包括：用于耦合到负载的相互耦合的片上电感器; 耦合到相互耦合的片上电感器的桥，包括低侧开关和高侧开关; PWM控制器，用于在第一负载电流期间控制所述低侧和高侧开关; 以及PFM控制器，用于在第二负载电流期间控制所述低侧和高侧开关，所述第二负载电流小于所述第一负载电流，所述PFM控制器包括：比较器，用于将所述负载的输出电压与参考电压; 以及耦合到比较器的用于确定高侧开关的导通持续时间的第一PDL。

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