公开(公告)号：US20150003117A1

公开(公告)日：2015-01-01

申请号：US14311116

申请日：2014-06-20

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Ferrazza ,  Ambrogio Giuseppe D'Adda ,  Claudio Adragna

IPC: H02M3/335

CPC classification number: H02M3/33546 ,  H02M1/15 ,  H02M3/335 ,  H02M2001/0035 ,  H02M2001/0054 ,  Y02B70/1433 ,  Y02B70/16

Abstract: A method of controlling a switching converter and a related controller suitable for the switching converter allow to implement a burst-mode functioning without generating acoustic noise and with a relevantly reduced ripple of the regulated DC voltage or current provided in output to a supplied load. The method includes sensing the difference between the error signal and the burst-stop threshold at the beginning of a burst period. If the error signal has surpassed (either upwards or downwards) the burst-stop threshold, the method sets the switching stage in a high impedance state at a new active edge of a clock signal, keeps the switching stage in the high impedance state for an integer number of cycles of the clock signal, and re-enables the switching stage to switch the energy tank circuit up to the end of the burst period. The integer number is determined based on the difference between the error signal and the burst-stop threshold,

Abstract translation: 一种控制开关转换器的方法和适用于开关转换器的相关控制器允许实现突发模式功能，而不会产生声学噪声，并且将输出中提供的调节的直流电压或电流的纹波相对减小到所提供的负载。 该方法包括在突发周期开始时感测误差信号与脉冲串 - 停止阈值之间的差异。 如果误差信号已经超过（向上或向下）突发停止阈值，则该方法将时钟信号的新的有效边沿处的开关级设置为高阻抗状态，将开关级保持在高阻抗状态 时钟信号的整数周期，并且重新使能开关级将能量槽电路切换到爆发周期结束。 基于误差信号和突发停止阈值之间的差异来确定整数，

公开(公告)号：US09318966B2

公开(公告)日：2016-04-19

申请号：US14311116

申请日：2014-06-20

Applicant: STMicroelectronics S.r.l.

Inventor： Francesco Ferrazza ,  Ambrogio Giuseppe D'Adda ,  Claudio Adragna

IPC: H02M3/335 ,  H02M1/15 ,  H02M1/00

CPC classification number: H02M3/33546 ,  H02M1/15 ,  H02M3/335 ,  H02M2001/0035 ,  H02M2001/0054 ,  Y02B70/1433 ,  Y02B70/16

Abstract: A method of controlling a switching converter and a related controller suitable for the switching converter allow to implement a burst-mode functioning without generating acoustic noise and with a relevantly reduced ripple of the regulated DC voltage or current provided in output to a supplied load. The method includes sensing the difference between the error signal and the burst-stop threshold at the beginning of a burst period. If the error signal has surpassed (either upwards or downwards) the burst-stop threshold, the method sets the switching stage in a high impedance state at a new active edge of a clock signal, keeps the switching stage in the high impedance state for an integer number of cycles of the clock signal, and re-enables the switching stage to switch the energy tank circuit up to the end of the burst period. The integer number is determined based on the difference between the error signal and the burst-stop threshold.

Abstract translation: 一种控制开关转换器的方法和适用于开关转换器的相关控制器允许实现突发模式功能，而不会产生声学噪声，并且将输出中提供的调节的直流电压或电流的纹波相对减小到所提供的负载。 该方法包括在突发周期开始时感测误差信号与脉冲串 - 停止阈值之间的差异。 如果误差信号已经超过（向上或向下）突发停止阈值，则该方法将时钟信号的新的有效边沿处的开关级设置为高阻抗状态，将开关级保持在高阻抗状态 时钟信号的整数周期，并且重新使能开关级将能量槽电路切换到爆发周期结束。 基于误差信号和突发停止阈值之间的差异来确定整数。