公开(公告)号：US08467520B2

公开(公告)日：2013-06-18

申请号：US12910782

申请日：2010-10-23

Applicant: Yan Zhou ,  Sean A. Lofthouse ,  Jonathan C. Grigsby

Inventor： Yan Zhou ,  Sean A. Lofthouse ,  Jonathan C. Grigsby

IPC: H04M1/00

CPC classification number: H02M3/33561 ,  Y10T307/25

Abstract: A method of generating a plurality of supply voltages for a plurality of subscriber line channels includes generating a first target VBAT value for a first associated linefeed driver from a first VBAT control. A second target VBAT value for a second associated linefeed driver is generated from a second VBAT control. A selected target VBAT value is generated based upon the first and second target VBAT values. A magnitude of the selected target VBAT value is not less than any maximum of a magnitude of the first and second target VBAT values. A switching regulator is controlled to provide a first generated VBAT corresponding to the selected target VBAT value, wherein the switching regulator provides a second generated VBAT having a pre-determined proportional relationship (p) to the first generated VBAT.

Abstract translation: 为多个用户线路信道产生多个电源电压的方法包括从第一VBAT控制产生用于第一相关联的线路馈送驱动器的第一目标VBAT值。 从第二VBAT控制产生用于第二相关联的线路馈送驱动器的第二目标VBAT值。 基于第一和第二目标VBAT值生成所选择的目标VBAT值。 所选择的目标VBAT值的大小不小于第一和第二目标VBAT值的大小的任何最大值。 控制开关调节器以提供对应于所选择的目标VBAT值的第一生成VBAT，其中开关调节器提供具有与第一生成VBAT的预定比例关系（p）的第二生成VBAT。

公开(公告)号：US20120098333A1

公开(公告)日：2012-04-26

申请号：US12910782

申请日：2010-10-23

Applicant: Yan Zhou ,  Sean A. Lofthouse ,  Jonathan C. Grigsby

Inventor： Yan Zhou ,  Sean A. Lofthouse ,  Jonathan C. Grigsby

IPC: H02J1/00

CPC classification number: H02M3/33561 ,  Y10T307/25

Abstract: A method of generating a plurality of supply voltages for a plurality of subscriber line channels includes generating a first target VBAT value for a first associated linefeed driver from a first VBAT control. A second target VBAT value for a second associated linefeed driver is generated from a second VBAT control. A selected target VBAT value is generated based upon the first and second target VBAT values. A magnitude of the selected target VBAT value is not less than any maximum of a magnitude of the first and second target VBAT values. A switching regulator is controlled to provide a first generated VBAT corresponding to the selected target VBAT value, wherein the switching regulator provides a second generated VBAT having a pre-determined proportional relationship (p) to the first generated VBAT.

Abstract translation: 为多个用户线路信道产生多个电源电压的方法包括从第一VBAT控制产生用于第一相关联的线路馈送驱动器的第一目标VBAT值。 从第二VBAT控制产生用于第二相关联的线路馈送驱动器的第二目标VBAT值。 基于第一和第二目标VBAT值生成所选择的目标VBAT值。 所选择的目标VBAT值的大小不小于第一和第二目标VBAT值的大小的任何最大值。 控制开关调节器以提供对应于所选择的目标VBAT值的第一生成VBAT，其中开关调节器提供具有与第一生成VBAT的预定比例关系（p）的第二生成VBAT。

公开(公告)号：US20120002800A1

公开(公告)日：2012-01-05

申请号：US12828226

申请日：2010-06-30

Applicant: Sean A. Lofthouse

Inventor： Sean A. Lofthouse

IPC: H04M1/78

CPC classification number: H04M1/738

Abstract: A method of controlling a switching regulator includes setting a current limit (ILIM) to a first value, ILIM1. An error voltage (VERR) is computed as a difference between an output voltage VOUT of the switching regulator and a reference voltage VREF of the switching regulator. The switching regulator current limit is set to a second value ILIM2, if the error voltage is greater than a first threshold voltage, VTH1. The switching regulator current limit is set to the first value, if the error voltage does not exceed a second threshold value, VTH2.

Abstract translation: 控制开关调节器的方法包括将电流限制（ILIM）设置为第一值ILIM1。 误差电压（VERR）被计算为开关调节器的输出电压VOUT与开关调节器的参考电压VREF之间的差。 如果误差电压大于第一阈值电压VTH1，则开关调节器电流限制被设置为第二值ILIM2。 如果误差电压不超过第二阈值VTH2，则开关稳压器电流限制被设置为第一值。