公开(公告)号：US20140232364A1

公开(公告)日：2014-08-21

申请号：US13963087

申请日：2013-08-09

Applicant: ST-Ericsson SA

Inventor： Matthieu Thomas ,  Patrik Arno ,  Vladimir Molata ,  Ondrej Tlaskal

IPC: H02M3/158

CPC classification number: H02M3/1588 ,  H02M7/483 ,  H02M2001/0003 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A power conversion circuit uses smaller, cheaper, and faster analog and digital circuits, e.g., buffers, comparators, and processing circuits, to provide the information necessary to control a multilevel power converter faster, cheaper, and with a smaller footprint than conventional techniques. For example, a current detection circuit indirectly measures a direction of a current through an inductor connected between midpoint node and an output node of a multilevel power converter based on comparisons between voltages associated with the multilevel power converter. A capacitor voltage detection detects a capacitor voltage across the flying capacitor to generate a logic signal based on a comparison between the capacitor voltage and a first reference voltage. A control circuit selects an operating state of the multilevel power converter to regulate a first capacitor voltage across the first capacitor based on the indirectly measured direction of the inductor current, the logic signal, and an input command signal.

Abstract translation: 功率转换电路使用更小，更便宜和更快的模拟和数字电路，例如缓冲器，比较器和处理电路，以提供与传统技术相比更快，更便宜和更小占地面积来控制多电平功率转换器所需的信息。 例如，电流检测电路基于与多电平功率转换器相关联的电压的比较，间接地测量通过连接在多电平电力转换器的中点节点和输出节点之间的电感器的电流的方向。 电容器电压检测检测跨越飞行电容器的电容器电压，以基于电容器电压和第一参考电压之间的比较来产生逻辑信号。 控制电路基于间接测量的电感器电流方向，逻辑信号和输入命令信号，选择多电平电力转换器的工作状态来调节跨第一电容器的第一电容器电压。

公开(公告)号：US09160232B2

公开(公告)日：2015-10-13

申请号：US13963087

申请日：2013-08-09

Applicant: ST-Ericsson SA

Inventor： Matthieu Thomas ,  Patrik Arno ,  Vladimir Molata ,  Ondrej Tlaskal

IPC: H02M3/158 ,  H02M7/483 ,  H02M1/00

CPC classification number: H02M3/1588 ,  H02M7/483 ,  H02M2001/0003 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A power conversion circuit uses smaller, cheaper, and faster analog and digital circuits, e.g., buffers, comparators, and processing circuits, to provide the information necessary to control a multilevel power converter faster, cheaper, and with a smaller footprint than conventional techniques. For example, a current detection circuit indirectly measures a direction of a current through an inductor connected between midpoint node and an output node of a multilevel power converter based on comparisons between voltages associated with the multilevel power converter. A capacitor voltage detection detects a capacitor voltage across the flying capacitor to generate a logic signal based on a comparison between the capacitor voltage and a first reference voltage. A control circuit selects an operating state of the multilevel power converter to regulate a first capacitor voltage across the first capacitor based on the indirectly measured direction of the inductor current, the logic signal, and an input command signal.

Abstract translation: 功率转换电路使用更小，更便宜和更快的模拟和数字电路，例如缓冲器，比较器和处理电路，以提供与传统技术相比更快，更便宜和更小占地面积来控制多电平功率转换器所需的信息。 例如，电流检测电路基于与多电平功率转换器相关联的电压的比较，间接地测量通过连接在多电平电力转换器的中点节点和输出节点之间的电感器的电流的方向。 电容器电压检测检测跨越飞行电容器的电容器电压，以基于电容器电压和第一参考电压之间的比较来产生逻辑信号。 控制电路基于间接测量的电感器电流方向，逻辑信号和输入命令信号，选择多电平电力转换器的工作状态来调节跨第一电容器的第一电容器电压。

公开(公告)号：US09413242B2

公开(公告)日：2016-08-09

申请号：US14363056

申请日：2012-12-05

Applicant: ST-Ericsson SA

Inventor： Patrik Arno

IPC: H02M3/158 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M3/1582 ,  H02M3/33569 ,  H02M2001/007

Abstract: A DC-DC converter has a Step-Up stage connected to a Step-Down stage. A common Step-Down controller is designed and configured such that a single reference voltage is compared to the output voltage of the Step-Down stage by a single comparator, producing a single error signal. The error signal is then compared to two different saw signals to generate first and second pulse-width modulated signals respectively. The first and second pulse-width modulated signals are inputted to a control unit that generates a first pair of control signals and a second pair of control signals, which control switching of the Step-Up stage and of the Step-Down stage.

Abstract translation: DC-DC转换器具有连接到降压级的升压级。 设计并配置了一个通用的降压控制器，使得单个参考电压由单个比较器与降压级的输出电压进行比较，产生单个误差信号。 然后将误差信号与两个不同的锯信号进行比较，以分别产生第一和第二脉冲宽度调制信号。 第一和第二脉冲宽度调制信号被输入到产生第一对控制信号的控制单元和控制升压阶段和降压阶段的切换的第二对控制信号。

公开(公告)号：US09088247B2

公开(公告)日：2015-07-21

申请号：US14056396

申请日：2013-10-17

Applicant: ST-Ericsson SA

Inventor： Patrik Arno ,  Matthieu Thomas

IPC: H03F3/189 ,  H03F1/02 ,  H03F3/24 ,  H03F3/72 ,  H02M1/00 ,  H02M3/156

CPC classification number: H03F3/189 ,  H02M2001/0045 ,  H02M2003/1566 ,  H03F1/0222 ,  H03F1/0227 ,  H03F1/0277 ,  H03F3/24 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/432 ,  H03F2200/555 ,  H03F2203/7221 ,  H03F2203/7236

Abstract: A multi-mode, dynamic, DC-DC converter supplies a dynamically varying voltage, as required, from a battery to an RF power amplifier (PA). In envelope tracking mode, a fast DC-DC converter generates a dynamic voltage that varies based on the amplitude envelope of an RF signal, and regulates the voltage at the PA. A slow DC-DC converter generates a steady voltage and regulates the voltage across a link capacitor. The fast and slow converters are in parallel from the view of the PA, and the link capacitor is between the fast converter and the PA. Because different nodes are regulated, no current sharing is possible between the converters. The link capacitor boosts the dynamic voltage level, allowing a maximum dynamic voltage at the load to exceed the battery voltage. In power level tracking mode, the fast converter is disabled and the link capacitor is configured to be in parallel with the load. The slow converter directly regulates the PA, and the link capacitor is in parallel with (added to) an output capacitor. Multiple wireless network standards may be supported, allowing for the sharing of RF circuits.

Abstract translation: 多模式动态DC-DC转换器根据需要从电池向RF功率放大器（PA）提供动态变化的电压。 在包络跟踪模式中，快速DC-DC转换器产生基于RF信号的幅度包络而变化的动态电压，并且调节PA处的电压。 缓慢的DC-DC转换器产生稳定的电压并且调节链路电容器两端的电压。 快速和慢速转换器与PA兼容，并且链路电容器位于快速转换器和PA之间。 因为不同的节点被调节，转换器之间不能进行电流共享。 链路电容提高动态电压电平，允许负载下的最大动态电压超过电池电压。 在功率电平跟踪模式下，禁用快速转换器，并将链路电容配置为与负载并联。 慢转换器直接调节PA，链路电容与输出电容并联。 可以支持多种无线网络标准，允许共享RF电路。

公开(公告)号：US20140333276A1

公开(公告)日：2014-11-13

申请号：US14363056

申请日：2012-12-05

Applicant: ST-Ericsson SA

Inventor： Patrik Arno

IPC: H02M3/158

CPC classification number: H02M3/1582 ,  H02M3/33569 ,  H02M2001/007

Abstract: There is described a DC-DC converter having a Step-Up stage (10) supplying a Step-Down stage (20). A common Step-Down controller is designed and configured such that a single reference voltage (VREF) is compared to the output voltage (VOUT_SD) of the Step-Down stage by a single comparator (61), producing a single error signal (VERROR). The error signal is then compared by comparators (62) and (63) to the two different saw signals (SAW1) and (SAW2) respectively in order to generate first and second pulse-width modulated signals (PWM_SU) and (PWW_SD) respectively that are inputted a the control unit (65) of the controller which, in turn, generates a first pair of control signals (1,2) and a second pair of control signals (3,4), which control switching of the Step-Up stage (10) supplying a Step-Down stage (20).

Abstract translation: 描述了具有提供降压级（20）的升压级（10）的DC-DC转换器。 公共降压控制器被设计和配置为使得单个参考电压（VREF）通过单个比较器（61）与降压级的输出电压（VOUT_SD）进行比较，产生单个误差信号（VERROR） 。 然后，通过比较器（62）和（63）将误差信号分别与两个不同的锯信号（SAW1）和（SAW2）进行比较，以分别产生第一和第二脉冲宽度调制信号（PWM_SU）和（PWW_SD） 输入控制器的控制单元（65），控制单元（65）又产生第一对控制信号（1,2）和第二对控制信号（3,4），其控制升压 （10）提供降压级（20）。

公开(公告)号：US20140232458A1

公开(公告)日：2014-08-21

申请号：US14056396

申请日：2013-10-17

Applicant: ST-Ericsson SA

Inventor： Patrik Arno ,  Matthieu Thomas

IPC: H03G1/00 ,  H03F3/20 ,  H03F3/189

CPC classification number: H03F3/189 ,  H02M2001/0045 ,  H02M2003/1566 ,  H03F1/0222 ,  H03F1/0227 ,  H03F1/0277 ,  H03F3/24 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/432 ,  H03F2200/555 ,  H03F2203/7221 ,  H03F2203/7236

Abstract: A multi-mode, dynamic, DC-DC converter supplies a dynamically varying voltage, as required, from a battery to an RF power amplifier (PA). In envelope tracking mode, a fast DC-DC converter generates a dynamic voltage that varies based on the amplitude envelope of an RF signal, and regulates the voltage at the PA. A slow DC-DC converter generates a steady voltage and regulates the voltage across a link capacitor. The fast and slow converters are in parallel from the view of the PA, and the link capacitor is between the fast converter and the PA. Because different nodes are regulated, no current sharing is possible between the converters. The link capacitor boosts the dynamic voltage level, allowing a maximum dynamic voltage at the load to exceed the battery voltage. In power level tracking mode, the fast converter is disabled and the link capacitor is configured to be in parallel with the load. The slow converter directly regulates the PA, and the link capacitor is in parallel with (added to) an output capacitor. Multiple wireless network standards may be supported, allowing for the sharing of RF circuits.

Abstract translation: 多模式动态DC-DC转换器根据需要从电池向RF功率放大器（PA）提供动态变化的电压。 在包络跟踪模式中，快速DC-DC转换器产生基于RF信号的幅度包络而变化的动态电压，并且调节PA处的电压。 缓慢的DC-DC转换器产生稳定的电压并且调节链路电容器两端的电压。 快速和慢速转换器与PA兼容，并且链路电容器位于快速转换器和PA之间。 因为不同的节点被调节，转换器之间不能进行电流共享。 链路电容提高动态电压电平，允许负载下的最大动态电压超过电池电压。 在功率电平跟踪模式下，禁用快速转换器，并将链路电容配置为与负载并联。 慢转换器直接调节PA，链路电容与输出电容并联。 可以支持多种无线网络标准，允许共享RF电路。