公开(公告)号：US20140253061A1

公开(公告)日：2014-09-11

申请号：US13789210

申请日：2013-03-07

Applicant: ANALOG DEVICES TECHNOLOGY

Inventor： Shanshan Yang ,  Guoming Wu ,  Bin Shao

IPC: G05F1/46

CPC classification number: G05F1/46 ,  H02M1/36 ,  H02M3/158 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A method and system to inhibit the switching of a current mode switching converter having high and low side switching elements coupled to an output inductor, the other end of which is coupled to an output node, and operated with respective modulated switching signals to regulate an output voltage Vout produced at the node. A current IC that varies with the difference between a reference voltage and a voltage proportional to Vout is compared with and a current IDETECT—PEAK which varies with the current conducted by the high side switching element; the result of the comparison of IC and IDETECT—PEAK is used to control the regulation of Vout during normal operation. Current IC is also compared with a current IDETECT—VALLEY which varies with the current conducted by the low side switching element. When IDETECT—VALLEY>IC, a ‘skip mode’ is triggered during which the switching signals are inhibited.

Abstract translation: 一种抑制具有耦合到输出电感器的高低侧开关元件的电流模式切换转换器的方法和系统，该输出电感器的另一端耦合到输出节点，并且用相应的调制开关信号进行操作，以调节输出 在节点处产生的电压Vout。 与参考电压和与Vout成比例的电压之间的差异变化的电流IC与当前由高侧开关元件传导的电流变化的IDETECT-PEAK进行比较; IC和IDETECT-PEAK的比较结果用于控制正常工作期间Vout的调节。 电流IC还与当前的IDETECT-VALLEY进行比较，其随着低侧开关元件所传导的电流而变化。 当IDETECT-VALLEY> IC时，触发切换信号的“跳过模式”。

公开(公告)号：US08941368B2

公开(公告)日：2015-01-27

申请号：US13789210

申请日：2013-03-07

Applicant: Analog Devices Technology

Inventor： Shanshan Yang ,  Guoming Wu ,  Bin Shao

IPC: G05F1/40 ,  G05F1/46

CPC classification number: G05F1/46 ,  H02M1/36 ,  H02M3/158 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A method and system to inhibit the switching of a current mode switching converter having high and low side switching elements coupled to an output inductor, the other end of which is coupled to an output node, and operated with respective modulated switching signals to regulate an output voltage Vout produced at the node. A current IC that varies with the difference between a reference voltage and a voltage proportional to Vout is compared with and a current IDETECT—PEAK which varies with the current conducted by the high side switching element; the result of the comparison of IC and IDETECT—PEAK is used to control the regulation of Vout during normal operation. Current IC is also compared with a current IDETECT—VALLEY which varies with the current conducted by the low side switching element. When IDETECT—VALLEY>IC, a ‘skip mode’ is triggered during which the switching signals are inhibited.

Abstract translation: 一种抑制具有耦合到输出电感器的高低侧开关元件的电流模式切换转换器的方法和系统，该输出电感器的另一端耦合到输出节点，并且用相应的调制开关信号进行操作，以调节输出 在节点处产生的电压Vout。 与参考电压和与Vout成比例的电压之间的差异变化的电流IC与当前由高侧开关元件传导的电流变化的IDETECT-PEAK进行比较; IC和IDETECT-PEAK的比较结果用于控制正常工作期间Vout的调节。 电流IC还与当前的IDETECT-VALLEY进行比较，其随着低侧开关元件所传导的电流而变化。 当IDETECT-VALLEY> IC时，触发切换信号的“跳过模式”。