公开(公告)号：US5847554A

公开(公告)日：1998-12-08

申请号：US878631

申请日：1997-06-13

申请人： Milton E. Wilcox ,  Christopher B. Umminger

发明人： Milton E. Wilcox ,  Christopher B. Umminger

IPC分类号： H02M3/158 ,  G05F1/563

CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

摘要： Synchronous switching regulator circuits with voltage-drop sensing circuitry are presented in which the current sensing element typically in series with a load is eliminated, resulting in reduced dissipative losses and less costly manufacture. Voltage drops are measured across the regulator's synchronous switching element, and, in some cases, also across the regulator's main switching element. Measured voltage drops are used to derive a current analog signal indicative of the amount of current being supplied by the regulator. The current signal is then compared with a threshold value to determine whether the regulator's duty cycle should be varied.

摘要翻译： 提出了具有电压降检测电路的同步开关调节器电路，其中通常与负载串联的电流感测元件被消除，导致减少的耗散损耗和较低成本的制造。 在整个调节器的同步开关元件上测量电压降，并且在某些情况下也通过调节器的主开关元件进行测量。 测量的电压降用于导出指示由调节器提供的电流量的当前模拟信号。 然后将当前信号与阈值进行比较，以确定调节器的占空比是否应该改变。

公开(公告)号：US06476589B2

公开(公告)日：2002-11-05

申请号：US09827872

申请日：2001-04-06

申请人： Christopher B. Umminger ,  Randy G. Flatness

发明人： Christopher B. Umminger ,  Randy G. Flatness

IPC分类号： G05F1652

CPC分类号： H02M3/1584

摘要： Methods for synchronizing non-constant frequency switching regulators with a phase locked loop are disclosed. The methods enable non-constant frequency switching regulators to be synchronized with a phase locked loop to achieve constant frequency operation in steady state while retaining the advantages of non-frequency operation to improve transient response and operate over a wider range of duty cycles. In addition, the methods enable multiple non-constant frequency regulators to be synchronized and operated in parallel to deliver higher power levels to the output than a single switching regulator.

公开(公告)号：US06774611B2

公开(公告)日：2004-08-10

申请号：US10197357

申请日：2002-07-15

申请人： Christopher B. Umminger ,  Randy G. Flatness

发明人： Christopher B. Umminger ,  Randy G. Flatness

IPC分类号： G05F1656

CPC分类号： H02M3/1584

摘要： Methods for synchronizing non-constant frequency switching regulators with a phase locked loop are disclosed. The methods enable non-constant frequency switching regulators to be synchronized with a phase locked loop to achieve constant frequency operation in steady state while retaining the advantages of non-frequency operation to improve transient response and operate over a wider range of duty cycles. In addition, the methods enable multiple non-constant frequency regulators to be synchronized and operated in parallel to deliver higher power levels to the output than a single switching regulator.

摘要翻译： 公开了用于使非恒定频率开关调节器与锁相环同步的方法。 这些方法使得非恒定频率开关调节器能够与锁相环同步，以在稳态下实现恒定频率运行，同时保持非频率运算的优点，以改善瞬态响应并在更宽范围的占空比下工作。 此外，这种方法使多个非恒定频率调节器能够同步并行并行运行，从而为单个开关稳压器提供比输出更高的功率电平。

公开(公告)号：US06940261B1

公开(公告)日：2005-09-06

申请号：US10394335

申请日：2003-03-19

申请人： Christopher B. Umminger

发明人： Christopher B. Umminger

IPC分类号： G05F1/40 ,  H02M3/158

CPC分类号： H02M3/1584 ,  H02M3/1588 ,  H02M2003/1586 ,  Y02B70/1466

摘要： Circuits and methods to correct the load sharing in multiphase switching regulators are provided. Using these systems and methods, the input capacitor voltage signal can be sampled and used for current sensing of the regulator's stages. Differences in the amount of output current for a converter stage can then be determined. Corrections needed to equalize the output current of the converter stages can then be determined and carried out.

摘要翻译： 提供了校正多相开关稳压器负载共享的电路和方法。 使用这些系统和方法，可以对输入电容器电压信号进行采样并用于电流检测调节器的级。 然后可以确定转换器级的输出电流量的差异。 然后可以确定和执行校正转换器级的输出电流所需的校正。

公开(公告)号：US07019497B2

公开(公告)日：2006-03-28

申请号：US10883892

申请日：2004-07-02

申请人： Christopher B. Umminger ,  Randy G. Flatness

发明人： Christopher B. Umminger ,  Randy G. Flatness

IPC分类号： G05F1/10 ,  G05F1/656

CPC分类号： H02M3/1584

摘要： Methods for synchronizing non-constant frequency switching regulators with a phase locked loop are disclosed. The methods enable non-constant frequency switching regulators to be synchronized with a phase locked loop to achieve constant frequency operation in steady state while retaining the advantages of non-frequency operation to improve transient response and operate over a wider range of duty cycles. In addition, the methods enable multiple non-constant frequency regulators to be synchronized and operated in parallel to deliver higher power levels to the output than a single switching regulator.