公开(公告)号：US20170279349A1

公开(公告)日：2017-09-28

申请号：US15432621

申请日：2017-02-14

Applicant: LINEAR TECHNOLOGY CORPORATION

Inventor： Samuel H. NORK ,  Edward L. HENDERSON

IPC: H02M3/07

Abstract: Switched capacitor circuit architectures that may enable high efficiency step-up or step-down dc-dc conversion from a primary, fixed supply input voltage using a four-switch switched capacitor topology and a separate auxiliary supply input voltage. The auxiliary supply input voltage can be optimized within the system or chosen from among other readily available supplies in the system to achieve the highest efficiency conversion ratio, without modifying the switch and flying capacitor arrangement. The auxiliary supply input voltage may be applied to other fixed conversion ratio converters to achieve higher efficiency conversion.

公开(公告)号：US20140191741A1

公开(公告)日：2014-07-10

申请号：US13734485

申请日：2013-01-04

Applicant: LINEAR TECHNOLOGY CORPORATION

Inventor： Samuel H. NORK

IPC: G05F1/62

CPC classification number: G05F1/62 ,  G01R29/24 ,  H02J7/0078 ,  H02M3/156 ,  H02M3/1582 ,  H02M2001/0032

Abstract: A power supply system includes a regulator circuit responsive to an input signal at the input node for producing an output signal at the output node at a desired level. The regulator circuit has a controller, an inductive element and a first switch coupled to the inductor element and controlled by the controller to produce the output signal. Also, the power supply system includes a Coulomb counter for producing a Coulomb count signal proportional to the number of Coulombs passing from the input node to the output node. The Coulomb counter is enabled by an enabling signal representing a predetermined time period, for determining the number of Coulombs passing from the input node to the output node during that predetermined time period.

Abstract translation: 电源系统包括响应于输入节点处的输入信号的调节器电路，用于在输出节点处以期望的水平产生输出信号。 调节器电路具有控制器，电感元件和耦合到电感器元件并由控制器控制以产生输出信号的第一开关。 此外，电源系统包括用于产生与从输入节点传送到输出节点的库仑数成正比的库仑计数信号的库仑计数器。 库仑计数器由表示预定时间段的使能信号使能，用于确定在该预定时间段期间从输入节点传送到输出节点的库仑数。