公开(公告)号：US09438109B2

公开(公告)日：2016-09-06

申请号：US14187442

申请日：2014-02-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung-Woo Moon ,  Myeong-Lyong Ko ,  Yu-Seok Ko ,  Dong-Jin Keum ,  Hyun-Wook Yoo ,  Hwa-Yeal Yu

IPC: H02M3/156 ,  H02M3/158 ,  G05F1/46 ,  H02M1/44 ,  H02M1/00

CPC classification number: H02M3/156 ,  G05F1/468 ,  H02M1/44 ,  H02M3/158 ,  H02M3/1588 ,  H02M2001/0009 ,  H02M2001/0025 ,  Y02B70/1466

Abstract: A bi-directional voltage positioning circuit includes a voltage to current converter, a current mirror circuit and a switch. The voltage to current converter converts a sensing voltage to a first current, and the sensing voltage is sensed based on a current flowing through an output coil connected between a switching node and an output node. The current mirror circuit mirrors the first current to generate a second current and a third current, the second current is N times greater than the first current, the third current is M times greater than the first current, and N and M are real numbers greater than zero. The switch provides a feedback node with one of the second current and third current in response to a switching control signal, and an output voltage of the output node is divided at the feedback node.

Abstract translation: 双向电压定位电路包括电压 - 电流转换器，电流镜电路和开关。 电压 - 电流转换器将感测电压转换为第一电流，并且基于流过连接在开关节点和输出节点之间的输出线圈的电流来感测感测电压。 电流镜电路反射第一电流以产生第二电流和第三电流，第二电流是第一电流的N倍，第三电流是第一电流的M倍，N和M是实数更大 比零。 该开关响应于开关控制信号向反馈节点提供第二电流和第三电流之一，并且在反馈节点处分配输出节点的输出电压。