公开(公告)号：US20150236594A1

公开(公告)日：2015-08-20

申请号：US14428027

申请日：2013-10-09

Applicant: ST-ERICSSON SA

Inventor： Xavier Branca

IPC: H02M3/158 ,  G09G3/32 ,  G09G5/18

CPC classification number: H02M3/1582 ,  G09G3/3258 ,  G09G5/18 ,  H02M2001/009 ,  Y10T307/406

Abstract: A method of driving a power stage configured to provide both positive output voltage higher than a first potential to a positive output and negative output voltage to a negative output, the method comprising:—generating a first control signal;—generating a second control signal;—operating, the first control signal so as to initiate a charging phase, such that a first duty cycle of the first control signal is controlling an amount of energy to be accumulated;—operating, simultaneously, at the control signals so as to initiate an independent discharging phase of the accumulated energy, in a boost-type to the positive output or in a buck-type or boost-type to the negative output, such that a second and third duty cycles of the second an third control signals are controlling an amount of energy to be discharged.

Abstract translation: 一种驱动功率级的方法，被配置为向正输出提供高于第一电位的正输出电压，将负输出电压提供给负输出，所述方法包括： - 产生第一控制信号; - 产生第二控制信号; 操作所述第一控制信号以便启动充电阶段，使得所述第一控制信号的第一占空比控制要累积的能量的量; - 同时在所述控制信号上操作，以启动所述第一控制信号 累积能量的独立放电相位，升压型到正输出或降压型或升压型到负输出，使得第二和第三控制信号的第二和第三占空比控制一个 要排放的能量。

公开(公告)号：US20150236588A1

公开(公告)日：2015-08-20

申请号：US14428034

申请日：2013-10-09

Applicant: ST-ERICSSON SA

Inventor： Xavier Branca

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/1582 ,  H02M2001/009

Abstract: A method of driving a power stage configured to provide both positive output voltage to a positive output and negative output voltage to a negative output, the method comprising: —generating a first control signal; —generating a second control signal; —operating, the first control signal so as to initiate a charging phase, such that a first duty cycle of the first control signal is controlling an amount of energy to be accumulated; —operating, simultaneously, the first control signal and the second control signal so as to initiate an independent discharging phase of the accumulated energy, in a buck-type or boost-type, to an output of the power stage such that a second duty cycle of the second control signal is controlling an amount of energy to be discharged.

Abstract translation: 一种驱动功率级的方法，被配置为向正输出提供正输出电压，将负输出电压提供给负输出，所述方法包括：产生第一控制信号; 产生第二控制信号; 操作所述第一控制信号以便启动充电阶段，使得所述第一控制信号的第一占空比控制要累积的能量的量; 同时操作第一控制信号和第二控制信号，以便以降压型或升压型将累积能量的独立放电相位发起到功率级的输出，使得第二占空比 的第二控制信号是控制要排出的能量的量。

公开(公告)号：US09496789B2

公开(公告)日：2016-11-15

申请号：US14428027

申请日：2013-10-09

Applicant: ST-Ericsson SA

Inventor： Xavier Branca

IPC: H02M3/158 ,  G09G5/18 ,  G09G3/32

CPC classification number: H02M3/1582 ,  G09G3/3258 ,  G09G5/18 ,  H02M2001/009 ,  Y10T307/406

Abstract: A method of driving a power stage configured to provide both a positive output voltage higher than a first potential to a positive output and a negative output voltage to a negative output includes generating a first control signal and a second control signal, and initiating a charging phase, a first duty cycle of the first control signal controlling an amount of energy to be accumulated. The method further includes initiating a first discharging phase of discharging a second amount of energy the positive output and the negative output, based on a simultaneous monitoring of the first control signal and the second control signal, the amount of energy to be discharged being controlled via a second duty cycle of the second control signal.

Abstract translation: 一种驱动功率级的方法，其被配置为向正输出提供高于第一电位的正输出电压和向负输出提供负输出电压，包括产生第一控制信号和第二控制信号，以及启动充电阶段 所述第一控制信号的第一占空比控制要积累的能量的量。 该方法还包括：基于同时监测第一控制信号和第二控制信号，启动第一放电阶段，以排出正输出和负输出的第二量的能量，经由 第二控制信号的第二占空比。

公开(公告)号：US09479052B2

公开(公告)日：2016-10-25

申请号：US14428034

申请日：2013-10-09

Applicant: ST-Ericsson SA

Inventor： Xavier Branca

IPC: H02M3/158

CPC classification number: H02M3/158 ,  H02M3/1582 ,  H02M2001/009

Abstract: Methods and apparatuses drive a Single Inductor Bipolar Output Buck-Boost configured to provide both positive output voltage and a negative output voltage. The power stage is driven so that an amount of energy to be accumulated during a charging phase is controlled via the duty cycle of a first control signal, and an amount of energy to be discharged during an independent discharging phase in a buck-type or boost-type is controlled via the duty cycle of a second control signal.

Abstract translation: 方法和设备驱动单电感双极输出降压 - 升压，配置为提供正输出电压和负输出电压。 驱动功率级，使得通过第一控制信号的占空比和在降压型或升压期间的独立放电阶段期间要放电的能量的量来控制在充电阶段期间要累积的能量的量 型通过第二控制信号的占空比进行控制。

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。