公开(公告)号：US20020180413A1

公开(公告)日：2002-12-05

申请号：US10197357

申请日：2002-07-15

Applicant: Linear Technology Corporation

Inventor： Christopher B. Umminger ,  Randy G. Flatness

IPC: G05F001/40

CPC classification number: H02M3/1584

Abstract: 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.

Abstract translation: 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：US20020017897A1

公开(公告)日：2002-02-14

申请号：US09978120

申请日：2001-10-15

Applicant: Linear Technology Corporation

Inventor： Milton E. Wilcox ,  Randy G. Flatness

IPC: G05F001/40

CPC classification number: H02M3/156 ,  H02M3/1588 ,  H02M2001/0032 ,  Y02B70/1466 ,  Y02B70/16

Abstract: A circuit and method for controlling a switching voltage regulator having (1) a switch including one or more switching transistors and (2) an output adapted to supply current at a regulated voltage to a load including an output capacitor. The circuit and method generates a control signal to turn said one or more switching transistors OFF under operating conditions when the voltage at the output is capable of being maintained substantially at the regulated voltage by the charge on the output capacitor. Such a circuit and method increases the efficiency of the regulator circuit particularly at low average current levels.

Abstract translation: 一种用于控制开关电压调节器的电路和方法，该开关电压调节器具有（1）包括一个或多个开关晶体管的开关和（2）适于向包括输出电容器的负载提供以调节电压的电流的输出。 该电路和方法产生一个控制信号，以在输出电压能够通过输出电容器上的电荷基本保持在调节电压的工作条件下使所述一个或多个开关晶体管截止。 这种电路和方法特别是在较低的平均电流水平下提高了调节器电路的效率。

公开(公告)号：US20020145409A1

公开(公告)日：2002-10-10

申请号：US09827872

申请日：2001-04-06

Applicant: LINEAR TECHNOLOGY CORPORATION

Inventor： Christopher B. Umminger ,  Randy G. Flatness

IPC: G05F001/40

CPC classification number: H02M3/1584

Abstract: 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.

Abstract translation: 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。