公开(公告)号：US09160231B2

公开(公告)日：2015-10-13

申请号：US14353991

申请日：2012-09-25

Applicant: ST-Ericsson SA

Inventor： Benoit Labbe ,  David Chesneau

IPC: G05F3/16 ,  H02M3/158 ,  H02M3/156

CPC classification number: H02M3/158 ,  H02M3/156

Abstract: A circuit with current-controlled frequency implements a node (2) with an electrical charge which alternatively increases and decreases between two thresholds. The slew rate of the node can be adjusted using a tunable current source (1), thereby enabling tuning of a switching delay. The circuit may be used for controlling the switching frequency of a switch-mode power supply.

Abstract translation: 具有电流控制频率的电路实现具有在两个阈值之间可选地增加和减少的电荷的节点（2）。 可以使用可调电流源（1）来调整节点的转换速率，从而实现对开关延迟的调节。 该电路可用于控制开关模式电源的开关频率。

公开(公告)号：US20140218117A1

公开(公告)日：2014-08-07

申请号：US14240477

申请日：2012-08-14

Applicant: ST-ERICSSON SA

Inventor： Xavier Branca ,  David Chesneau

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/156

Abstract: The present invention relates to a voltage regulating device comprising a power stage (30) comprising an inductor (L) between a first node (P1) and a second node (P2); a first switch (A) between the first node (Pi) and a power supply node (P3) for which the potential (Vbat) is non-zero and of constant polarity; a first capacitor (CNEG) between a node (P5) at a reference potential and a second switch (B) coupled to the first node (P1); a second capacitor (CPOS) between a node (P7) at the reference potential and a third switch (C) coupled to the second node (P2); a fourth switch (D) between the second node (P2) and a node (P8) at the reference potential; a fifth switch (E) between the first node (P1 and a node (P9) at the reference potential; a first output (P4) for delivering a first voltage corresponding to the voltage at the terminals of the first capacitor (CNEG); a second output (P6) for delivering a second voltage corresponding to the voltage at the terminals of the second capacitor (CPOS); The power stage further comprises at least one comparator (40, 41) arranged to detect an inversion of the current in the inductor and the power stage is further arranged to close the fourth and fifth switches and to open the first, second and third switches upon detection of an inversion of the current in the inductor.

Abstract translation: 电压调节装置技术领域本发明涉及一种电压调节装置，包括在第一节点（P1）和第二节点（P2）之间包括电感器（L）的功率级（30） 第一节点（Pi）和电位（Vbat）为非零且恒定极性的电源节点（P3）之间的第一开关（A） 在参考电位的节点（P5）与耦合到第一节点（P1）的第二开关（B）之间的第一电容器（CNEG）; 在参考电位的节点（P7）和耦合到第二节点（P2）的第三开关（C）之间的第二电容器（CPOS）; 在第二节点（P2）和参考电位的节点（P8）之间的第四开关（D） 在第一节点（P1和参考电位处的节点（P9）之间的第五开关（E）;用于传送对应于第一电容器（CNEG）的端子处的电压的第一电压的第一输出（P4）; 第二输出（P6），用于传送对应于在第二电容器（CPOS）的端子处的电压的第二电压;功率级还包括至少一个比较器（40,41），其被布置成检测电感器中的电流的反相 并且功率级还被布置成闭合第四和第五开关，并且在检测到电感器中的电流的反转时打开第一，第二和第三开关。

公开(公告)号：US20140300335A1

公开(公告)日：2014-10-09

申请号：US14353991

申请日：2012-09-25

Applicant: ST-Ericsson SA

Inventor： Benoit Labbe ,  David Chesneau

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/156

Abstract: A circuit with current-controlled frequency implements a node (2) with an electrical charge which alternatively increases and decreases between two thresholds. The slew rate of the node can be adjusted using a tunable current source (1), thereby enabling tuning of a switching delay. The circuit may be used for controlling the switching frequency of a switch-mode power supply.

Abstract translation: 具有电流控制频率的电路实现具有在两个阈值之间可选地增加和减少的电荷的节点（2）。 可以使用可调电流源（1）来调整节点的转换速率，从而实现对开关延迟的调节。 该电路可用于控制开关模式电源的开关频率。